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Tytuł:
Methane hydrate technologies in Ukraine: research and prospects
Autorzy:
Zhuk, H.
Pyatnichko, O.
Krushnevich, V.
Fedorenko, D.
Klymenko, V.
Powiązania:
https://bibliotekanauki.pl/articles/298701.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
methane hydrate
transport of natural gas
methane production
alternative fuel sources
carbon dioxide capture and storage
hydrate test stand
Ukraine
Opis:
Abstract Methane production from natural gas hydrates will enable the reduction of a great part of natural gas import deliveries and to give up them completely in the future. Gas hydrate technologies compared with existing ones, also gives the possibility to transport gas, divide gas and liquid mixtures, concentrate water solutions, utilize and store СО2, etc. with greater efficiency. However, methane production technologies have not developed industrially and their study was performed with the help of experimental units and in separate gas hydrates deposits in the mode of tests and elaborations. The prospects of the hydrate technologies development in the Ukraine were determined: transportation of natural gas in the form of hydrates, long-term storage of natural gas in hydrate state, natural gas production from its hydrate deposits. Positive international experience in terms of the development of hydrate technology is studied. In order to study formation and dissociation hydrates of carbon dioxide and natural gas components, Gas Institute have made hydrate stand facility. The express method of determining thermodynamic and kinetic parameters of hydrate transformation was tested. Natural gas hydrates as well as carbon dioxide hydrates were produced with the help of the express method. It was determined that the composition of original natural gas and gas of hydrates decomposition is of great difference – it means that “selective” hydrates formation of natural gas formation is performed.A set of experiments was also performed to study the process of methane replacement with the help of carbon dioxide. According to the gaseous phase analysis, 14% increase of methane content was fixed. This fact proves its replacement in hydrates with the help of carbon dioxide.
Źródło:
AGH Drilling, Oil, Gas; 2016, 33, 4; 811-818
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ temperatury i chlorowodoru na proces utleniania wodzianu chloralu z udziałem katalizatora palladowego
Effect of temperature and hydrogen chloride on the process of chloral hydrate oxidation with an application of palladium catalyst
Autorzy:
Żarczyński, A.
Zaborowski, M.
Gorzka, Z.
Kaźmierczak, M.
Powiązania:
https://bibliotekanauki.pl/articles/401249.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
utlenianie organicznych związków chloru
wodzian chloralu
katalizator palladowy
chlorowodór
mały system zbiorowego zaopatrzenia w wodę
plany bezpieczeństwa wodnego
hydrogen chloride
palladium catalyst
chloral hydrate
oxidation of organic chlorine compounds
Opis:
Wykonano metodą ciągłą badania wpływu temperatury w zakresie 250-600°C na procesy utleniania następujących substratów: roztworu wodnego wodzianu chloralu o stężeniu 50 g/l, roztworu wodzianu chloralu 50 g/l w 6 molowym kwasie solnym oraz roztworu zawierającego tylko 6 mol/l kwasu solnego, w obecności ziarnistego katalizatora palladowego Pd(1,0%)/y-Al2O3 Natężenie przepływu powietrza wynosiło 200 dm3/h oraz roztworu danego substratu 32,5 g/h. Wodzian chloralu ulegał rozkładowi z wysoką wydajnością 99,7% już w temperaturze 300°C, natomiast w obecności 6 molowego kwasu solnego ten sam stopień przemiany uzyskano dopiero w temperaturze 375°C. Produktami końcowymi procesu utleniania wodzianu chloralu były: ditlenek węgla, para wodna i kwas solny, a produktami pośrednimi m. in. chlor, formaldehyd oraz tlenek węgla. Jednak ze względu na konieczność eliminacji tlenku węgla i formaldehydu powinna być stosowana wyższa temperatura utleniania substratów, co najmniej 450°C. Z wykonanych doświadczeń wynika, że obecność kwasu solnego w roztworze dozowanego wodzianu chloralu obniżała aktywność katalizatora w zakresie temperatury 250-425°C.
Investigations carried out with a continuous method included determination of a temperature effect (250-600oC) on the oxidation process of the following substrates: aqueous solution of chloral hydrate at concentration of 50 g/l, chloral hydrate solution at concentration of 50 g/l in hydrochloric acid (6 mol/l) and hydrochloric acid solution (6 mol/l). Experiments were carried out with the application of granular palladium catalyst Pd(1.0%)/y-Al2O3. Air and substrate flow rate was 200 dm3/h and 32.5 g/h, respectively.Chloral hydrate was decomposed with the high efficiency of 99.7% even in the temperature of 300oC. In the presence of hydrochloric acid (6 mol/l), the same efficiency was achieved in the temperature of 375oC. The final products of the chloral hydrate oxidation were as follows: carbon dioxide, water vapour and hydrochloric acid. Chlorine, formaldehyde and carbon monoxide were intermediate products. However, taking into consideration the necessity of carbon monoxide and formaldehyde elimination, the oxidation temperature should be higher, e.g., 450oC. Results of the investigations prove that the presence of hydrochloric acid in the solution of chloral hydrate caused a decrease in the catalyst activity in the temperature range from 250 to 425oC.
Źródło:
Inżynieria Ekologiczna; 2011, 26; 75-82
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gazohydraty - nowy rodzaj paliw kopalnych
Gas hydrates - a new type of fossil fuel
Autorzy:
Zagorski, J.
Powiązania:
https://bibliotekanauki.pl/articles/2075083.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
gas hydrates
methane
permafrost
mud volcanoes
Mallik
Kuparuk River
Messoyakha
Nankai
submarine landslide
hydrate-bearing sediments
unconventional hydrocarbon resources
gazohydraty
metan
strefa wiecznej zmarzliny
wulkany błotne
otwór Mallik
rzeka Kaparuk
podmorskie osuwiska
niekonwencjonalne złoża węglowodorów
Opis:
Unconventional hydrocarbon resources in last years draw the attention of petroleum geologists. Significant position take the gas hydrates, first of all due to occurrences in many regions of the world and the size of the potential resources. These accumulations are localized in Arctic regions with permafrost as well as offshore. First gas hydrate discovery occurred in Siberian gas field Messoyakha in permafrost zone and similar accumulations were found in Alaska. Offshore occurrences are located mainly on continental slope. Drillings and samples from permafrost and seabed provided vast amount of data concerned conditions of gas hydrates formation and concentration and allow to better constrain the volume of hydrate-bearing sediments and their gas yield. Resources of hydrocarbons contained in gas hydrate deposits represent a vast energy source potential. Still essential problem is to elaborate efficient commercial production technology. So far positive developments regard only laboratory or semi-commercial scale.
Źródło:
Przegląd Geologiczny; 2013, 61, 8; 452--459
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sezonowe zmiany zawartości lotnych halogenowych organicznych ubocznych produktów chlorowania wody w sieci wodociągowej Krakowa
Seasonal variations in volatile organic halogen water chlorination by-product content in Krakow city water distribution system
Autorzy:
Włodyka-Bergier, A.
Bergier, T.
Powiązania:
https://bibliotekanauki.pl/articles/237424.pdf
Data publikacji:
2013
Wydawca:
Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
Tematy:
system dystrybucji wody
produkty uboczne chlorowania
trójhalometany
halogenoacetonitryle
halogenoketony
chloropikryna
wodzian chloralu
water distribution system
chlorination by-products
trihalomethanes
haloacetonitriles
haloketones
chloropicrin
chloral hydrate
Opis:
W wodzie wodociągowej zbadano zawartość związków z grupy trójhalometanów (trichlorometan, bromodichlorometan, dibromochlorometan i tribromometan), halogenoacetonitryli (bromochloroacetonitryl, dibromoacetonitryl, dichloroacetonitryl i trichloroacetonitryl), halogenoketonów (1,1-dichloro-2-propanon i 1,1,1-trichloro-2-propanon) oraz chloropikryny (trichloronitrometan) i wodzianu chloralu. W latach 2011/2012 pobrano i za-nalizowano próbki wody z dwóch krakowskich systemów dystrybucji wody – Raba” i „Bielany”. Systemy te różnią się jakością ujmowanej wody oraz układem jej oczyszczania, a także wielkością sieci dystrybucji. W obu zakładach stosuje się dezynfekcję wody chlorem. Analiza otrzymanych wyników pozwoliła ocenić sezonowe (wiosna, lato, jesień, zima) zmiany w ilości poszczególnych grup lotnych produktów ubocznych chlorowania w wodzie z obu systemów. Przeprowadzone badania wykazały istotny wpływ zmian temperatury wody (związanych z porą roku), a więc ilości i rodzaju prekursorów obecnych w chlorowanej wodzie, na zawartość lotnych produktów ubocznych dezynfekcji powstających w sieci wodociągowej.
Content of the following compounds in water has been examined: trihalomethanes (trichloromethane, bromodichloromethane, dibromochloromethane, tribromomethane), haloacetonitriles (bromochloroacetonitrile, dibromoacetonitrile, dichloroacetonitrile, trichloroacetonitrile), haloketones (1,1-dichloro-2-propanone, 1,1,1-trichloro-2-propanone), chloropicrin and chloral hydrate. In the period of 2011–2012 samples from terminal ends of the two water distribution systems in Krakow: ‘Raba’ and ‘Bielany’ were collected and analyzed. These systems differ in raw water quality, treatment train arrangement as well as distribution network size. Chlorination to disinfect the water is applied in both plants. The result analysis allowed assessment of seasonal variations (spring, summer, autumn, winter) in individual volatile chlorination by-product group content for each of the considered water distribution systems. Research conducted demonstrated significant influence of season-related water temperature fluctuations, therefore of the amount and type of precursors present in chlorinated water, on volatile halogen disinfection by-product content formed in the water distribution system.
Źródło:
Ochrona Środowiska; 2013, 35, 4; 23-27
1230-6169
Pojawia się w:
Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wybrane nowe technologie w transporcie i zastosowaniach energetycznych gazu ziemnego
Some new technologies of natural gas for transport and energy applications
Autorzy:
Warowny, W.
Rychlicki, S.
Powiązania:
https://bibliotekanauki.pl/articles/299741.pdf
Data publikacji:
2007
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
ogniwa paliwowe
transport hydratów
transport CNG
gaz ziemny do pojazdów
termoakustyczne skraplanie
pomiary energii gazu ziemnego
fuel cells
hydrate transport
CNG transport
natural gas for vehicles
thermoacoustic liquefaction
natural gas energy measurements
Opis:
Istnieje zapotrzebowanie na technologie pozwalające transportować gaz ziemny poza systemem sieci gazociągowej, przede wszystkim dla złóż mało opłacalnych i na krótszą odległość. Dla tego celu wykorzystano następujące technologie: hydratację gazu ziemnego (NGH), sprężony gaz ziemny (CNG) i jego termoakustyczne skraplanie. Powyższe technologie są stosunkowo nowe i są na etapie dalszego ich rozwoju. W drugim przypadku dotyczącym zastosowań energetycznych rozważano ogniwa paliwowe, sprężony gaz ziemny (CNG) do pojazdów i nową metodę pomiaru energii. Zastosowania ogniw paliwowych są bardzo szerokie, na przykład w: urządzeniach elektronicznych, gospodarstwach domowych, motoryzacji, wojsku czy instalacjach energetycznych i przemysłowych. Ogniwa paliwowe są ciągle na etapie rozwoju technologicznego i obecnie są jeszcze bardzo kosztowne. Gaz ziemny do napędu pojazdów jest najczystszym i obiecującym alternatywnym paliwem przyszłości, ponieważ redukuje emisję gazów trujących, gazów cieplarnianych i poziom hałasu. Te walory są szczególnie ważne w miastach, gdzie liczba ludności i ilość samochodów jest największa. W przypadku pomiaru energii, zamiast obliczenia energii z objętości i ze składu gazu, proponuje się metodę korelacyjną. Nowa koncepcja metody opiera się na pomiarach właściwości fizycznych.
There is a need for non-pipeline technologies that can capture and transport natural gas to markets, especially for stranded gas reserves and for shorter distance transport of the gas. For this purpose following technologies are developed: natural gas hydrate (NGH), compressed natural gas (CNG) and thermoacoustic liquefaction. All of these technologies are relatively new and not finally mature. In the second case, for energy applications have been considered fuel cells, CNG for vehicles and new energy measurement method. Applications of the fuel cells are very extensive, e.g. in: electronic devices, home, transportation, military, power and industrial installation. Fuel cells are still heavily under technological development and their present state are very expensive. The natural gas has a promising future as the cleanest an alternative fuel for vehicles, because reduces the emission toxic exhaust gases, greenhouse gases and noise level. It is especially important in the cities, where is the greatest concentration of people and vehicles. For energy measurement, instead conversion of volume for known composition, a correlation method is proposed. A new concept of the method is based on measurement of physical properties.
Źródło:
Wiertnictwo, Nafta, Gaz; 2007, 24, 2; 901-914
1507-0042
Pojawia się w:
Wiertnictwo, Nafta, Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Developing measures to eliminate of hydrate formation in underground gas storages
Autorzy:
Volovetskyi, V. B.
Doroshenko, Ya. V.
Bugai, A. O.
Kogut, G. M.
Raiter, P. M.
Femiak, Y. M.
Bondarenko, R. V.
Powiązania:
https://bibliotekanauki.pl/articles/2172156.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
well
flowline
hydrate formation
local constraint
regulating choke
studnia
powstawanie hydratów
współczynnik ograniczenia
dławik
Opis:
Purpose The objective of this article is the analysys of methods for preventing and eliminating hydrates formations, classifying them and choosing the best ones for use in underground gas storage facilities. Comprehensive measures for the stable operation of gas storage facilities in the presence of conditions for the occurrence of hydrates formations were developed. Zones, being potentially prone to the hydrates formation during the gas storage facilities operation were identified. Design/methodology/approach The operational parameters of gas storage wells during gas withdrawal are analyzed. The identified wells were operated under difficult conditions due to the deposition of hydrates on the wellheads, in flowlines and process equipment of gas storage facilities. The places of the highest hydrates accumulation on underground gas storages were determined: from the bottomhole of wells to the gas purification unit of the gas gathering station. Hydrate-prone zones were identified by computational fluid dynamic (CFD) modeling at the location of regulating choke installations in underground gas storage facilities. Findings The zones of the greatest hydrates accumulation on underground gas storages were determined: from the bottomhole of wells to the gas purification unit of the gas gathering station. The analysis of the methods used in gas storage facilities of Ukraine to prevent and eliminate hydrates formation was out. A set of measures was proposed to prevent the hydrates formation in storage facilities to ensure their stable operation. Based on the Euler approach (Mixture model) by CFD modeling, zones prone to hydrates formation were determined at the installation site of regulating chokes in underground gas storages. The influence of the degree of fittings opening on the location of potential zones prone to hydrates formation was estimated. The gas-dynamic processes in the internal cavity of the gas pipeline at the installation site of the control fittings were studied and their influence on the distribution of bulk particles of the gaseous and liquid phases was established. Based on the studies performed, it was recommended to change periodically the mode of well operation for a certain time by opening or closing the regulating choke under favorable conditions for the formation of hydrates, especially at low ambient temperatures. Research limitations/implications The obtained results of experimental studies and calculations showed that in order to solve the problem of hydrates formation at gas storage facilities, it is advisable to use diverse measures through the introduction of modern intelligent systems for monitoring and controlling the technological process. Further refinement of the algorithm of the proposed monitoring and control system with its approbation in production was provided. Practical implications The results of the experimental studies and CFD modeling carried out allowed providing a more reasonable approach to the application of various available methods and measures to prevent hydrates formation in underground gas storage facilities. This approach made it possible to develop new effective ways and measures to prevent such complication. Originality/value Based on the conducted experimental studies and modeling, the major zones prone to hydrates formation in underground gas storages were determined. The developed measures will allow timely detection and prevention of hydrates formation at gas storage facilities are original.
Źródło:
Journal of Achievements in Materials and Manufacturing Engineering; 2022, 111, 2; 64--77
1734-8412
Pojawia się w:
Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gidratoobrazovanie v gazovom ezhektore
Hydrate formation in gas ejector
Autorzy:
Red'ko, A.
Babenko, E.
Powiązania:
https://bibliotekanauki.pl/articles/78261.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
hydrate formation
gas ejector
energy loss
humidity
operating environment
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2014, 16, 6
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of hydrate formation and concentration of salts on the corrosion of steel 20 pipelines
Autorzy:
Poberezhny, Lubomyr
Chudyk, Ihor
Hrytsanchuk, Andrii
Mandryk, Oleg
Kalyn, Tetyana
Hrytsuliak, Halyna
Yakymechko, Yaroslav
Powiązania:
https://bibliotekanauki.pl/articles/410213.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
chloride media
formation water
internal hydrate corrosion
hydrate formation
Opis:
One of the ways to increase natural gas production is to conserve and/or intensify existing wells with their subsequent development. They are characterized by a high content of highly mineralized water, which leads to an increased risk of hydrate formation and internal corrosion. The issue of the formation of gas hydrates in industrial pipelines, which is a major problem for the exploitation of industrial gas pipelines, requires considerable attention to be made to exclude emergency situations. The main task of the study – to determine the effect of hydrates on the corrosion of the pipeline in order to prevent emergencies. A technique for studying the effect of hydration on the corrosion of pipelines has been developed. The combined analysis of the corrosion behavior of pipe material in aggressive media of chloride type was done. According to the results of corrosion-mechanical tests, regularities of joint action of mechanical stresses, concentration of chlorides and hydrate formation on the speed and localization of corrosion processes are established.
Źródło:
Management Systems in Production Engineering; 2020, 3 (28); 141-147
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gas hydrates impact on corrosion of the well flow lines material
Autorzy:
Poberezhny, L.
Hrytsanchyk, A.
Mandryk, O.
Poberezhna, L.
Popovych, P.
Shevchuk, O.
Mishchuk, B.
Rudyak, Yu.
Powiązania:
https://bibliotekanauki.pl/articles/2175767.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
gas hydrate
oil and gas region
corrosion-mechanical tests
influence of hydrate formation
inner pipe corrosion
hydraty gazowe
region ropy i gazu
badania korozyjno-mechaniczne
wpływ tworzenia się hydratów
korozja rur wewnętrznych
Opis:
Purpose: Determination of regularities of joint action of mechanical stresses, formation water and hydrate formation on corrosion of material of flow pipelines. Design/methodology/approach: According to the analysis of reservoir water of the investigated deposits, it was found that the main corrosive component is soluble chlorides. Proposed for corrosion and corrosion-mechanical tests of 6 model environments. An estimation of the influence of stress concentration, depending on the defects of the inner wall of the pipe, was carried out, and the nominal local stresses in the pipeline was carried. Findings: The basic regularities of influence of stress and hydration formation on corrosion and localization of corrosion processes and on the kinetics of deformation of samples are described. For samples made of steel 20 and 17GS, an increase in the velocity of general and local corrosion for samples sustained in the gas hydrate was observed compared to the control results obtained, the coefficient of influence of the gas hydrate on corrosion was calculated. Research limitations/implications: The obtained results are valid for thermobaric operating conditions of well flow lines. Practical implications: The data obtained in the work on the patterns of corrosion processes and the impact of hydrate formation on them will allow to identify potentially dangerous areas of flow lines and prevent emergencies. Originality/value: Based on the analysis of the geometric dimensions of the defects, the effective stress concentration coefficients are calculated, and it is shown that the stresses in the vicinity of corrosion defects in normal operating modes range from 164 to 545 MPa.
Źródło:
Archives of Materials Science and Engineering; 2021, 110, 1; 5--17
1897-2764
Pojawia się w:
Archives of Materials Science and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prospects for the development of hydrate storage and transportation technology of methane gas
Autorzy:
Pavlenko, A.
Koshlak, H.
Vytyaz, O.
Rybicki, Cz.
Powiązania:
https://bibliotekanauki.pl/articles/298817.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
gas hydrate
jet apparatus
free falling jet
continuous cycle of production
coagulation
heat of gas hydration
Opis:
The gas hydrate tecłmologies can be alternative to the traditional methods of the rational use of hydrocarbon gases. However the known constructions of apparatuses for the production of gas hydrates cannot satisfy the condition of their industrial use fully. Authors offer to carry out the high-quality contact of gas and water at formation of gas hydrate by jet apparatuses with a free falling jet. On their basis a technological chart is offered for realization of continuous cycle of production of gas hydrate. The aim is to develop technical solutions and process parameters of continuous production of gas hydrates, which would satisfy the requirements of industrial application
Źródło:
AGH Drilling, Oil, Gas; 2015, 32, 1; 13-21
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of the stability of methane hydrates in normal conditions
Autorzy:
Pavlenko, A.
Koshlak, V.
Vytyaz, O.
Powiązania:
https://bibliotekanauki.pl/articles/298759.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
storage of gas
gas hydrates
hydrate błock
thermal conductivity
forcibly preservation
equilibrium conditions
Opis:
The problems of accumulation, transport and storage of gases and gas mixtures exist in many cases. Often the existent technologies appear ineffective for transporting his with pipelines, as condensate or compressed gas. Therefore, the transportation and storage of gas in hydrate form can be an alternative to traditional technologies. Preservation of gas hydrate blocks can store them for some time at the no equilibrium conditions. The thermodynamic parameters of forcibly conservation of gas hydrate blocks theoretically are determined and experimentally verified.
Źródło:
AGH Drilling, Oil, Gas; 2014, 31, 4; 495-505
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gas Hydrate Detection Based on High Resolution Seismic Data in the Southeastern Offshore of Vietnam
Autorzy:
Mai, Thanh Tan
Mai, Thanh Ha
Nguyen, Quoc Huy
Nguyen, Nhu Trung
Powiązania:
https://bibliotekanauki.pl/articles/27323248.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
gas hydrate
high resolution seismic
Gas Hydrate Stability Zones/GHSZ
Bottom Simulated Reflector/BSR
gaz
sejsmika
hydratacja
Opis:
Gas hydrates are the accumulations of methane (natural gas) trapped in ice-like structures with water. Gas hydrates represent an immense energy resource underlying large portions of the world’s marine continental shelves. Vietnam has a large continental shelf area, in the deep water zone with suitable low temperatures and high pressure, which is suitable for the formation and existence of potential energy source of Gas Hydrate (GH). The application of High-Resolution Seismic method (HRS) plays an important role in exploring for Gas Hydrate. The enhancement of HRS research such as optimal short - reception conditions and advanced data processing suitable for Gas Hydrate in shallow layers below the seafloor, allows for determining the geological factors related to Gas Hydrate’s existence in the deep water area. Advancements in data processing technology, such as noise filters (Radon, F-K, SRMA, Tau-P..), seismic attributes analysis, seismic migration, AVO, seismic inversion, pre-stack seismic data and AI technology … allow to identify of the signs of Gas Hydrate presence, such as Bottom Simulated Reflector (BSR), Gas Hydrate Stability Zone (GHSZ), Pockmark, Chimney, etc. This paper presents some of the results obtained from applying High-Resolution Seismic method to predict the distribution of Gas hydrate in the Southeastern offshore of Vietnam.
Źródło:
Inżynieria Mineralna; 2023, 2; 137--142
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Apparatus to study volumetric properties of the gas hydrates
Autorzy:
Lorenc, M.
Warowny, W.
Powiązania:
https://bibliotekanauki.pl/articles/298898.pdf
Data publikacji:
2012
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
hydrate
hydratation
methane
hydrogen sulfide
separation
desulfurization
natural gas
laboratory apparatus
nucleation
phase equilibrium
dissociation
uwadnianie
metan
aparatura laboratoryjna
siarkowodór
gaz ziemny
Opis:
A new pVT apparatus was built on Department of Drilling, Oil and Gas at AGH University of Science and Technology, which was sponsored by the Polish Oil and Gas Company. The apparatus was adjusted to measurement of the proprieties of the gas hydrates. On the schematic diagram of this apparatus, methodological solutions of the equipment were compared to different of this kind literature apparatuses. Among others innovatory elements of the present apparatus some of them should be counted: method of the changes of volume or automatic system (arrangement) to taking the sample with supported nafion drying. The first step of the experimental study is desulfurization of the natural, by using process of the hydrates formation in gas mixture.
Źródło:
AGH Drilling, Oil, Gas; 2012, 29, 3; 419-430
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Doświadczalne metody badań hydratów gazowych
Experimental investigations methods of gas hydrates
Autorzy:
Lorenc, M.
Warowny, W.
Powiązania:
https://bibliotekanauki.pl/articles/299345.pdf
Data publikacji:
2011
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
nukleacja
hydrat
klatraty
metan
eksperymentalne
niestechiometryczne
inhibitor
wiązanie van der Waalsa
wiązanie wodorowe
krystaliczne
hydrate
clathrate
methane
experimental
nucleation
nonstoichiometric
van der Waals bond
hydrogen bond
crystalline
Opis:
Poznanie natury hydratów gazowych opiera się głównie na badaniach doświadczalnych w skali laboratoryjnej i ćwierć-technicznej oraz na teorii popartej obliczeniami i symulacjami komputerowymi. W pracy przedstawiono metody pomiarowe dotyczące tworzenia lub/i zapobiegania tworzenia się hydratów gazowych, badania ich właściwości oraz wykorzystanie w nowych technologiach. Generalnie badania doświadczalne hydratów gazowych i hydratacji można podzielić na kilka grup tematycznych: doświadczalne i obliczeniowe wyznaczanie równowag fazowych, badania parametrów fizykochemicznych i strukturalnych, pomiary kinetyczne, w tym nukleacji i aglomeracji cząsteczek, badania wpływu na hydratację inhibitorów i surfaktantów, możliwość zastosowań technologicznych, w szczególności hydratu metanu, w tym wydobycia, przesyłu, magazynowania i oczyszczania, plus badania geologiczne i geofizyczne w celu oszacowania zasobów hydratu metanu.
Knowledge of the nature gas hydrates is connected mainly with experimental studies in laboratory and pilot plant and theory supported by calculations and computer simulations. In work have been given methods of measurement dealing with: formation and/or prevention of formation gas hydrates, studies their properties, and utilization in new technologies. Generally, studies of the gas hydrates and hydratation can be divided on several thematic groups: experimental and calculated determination of phase equilibrium, studies of the physicochemical and structural parameters, kinetic measurements, including nucleation, and agglomeration of particles, studies influence of inhibitors and surfactants on the hydratation process, possibility of technological applications, especially hydrate of methane, including getting out, transport, storage and purification, plus geological and geophysical studies carried out in order to estimation methane hydrate deposits.
Źródło:
Wiertnictwo, Nafta, Gaz; 2011, 28, 1-2; 227-251
1507-0042
Pojawia się w:
Wiertnictwo, Nafta, Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The outlook for the use of pseudopolymorphic solvates in energetic materials
Autorzy:
Lempert, D. B.
Chukanov, N. V.
Powiązania:
https://bibliotekanauki.pl/articles/358246.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
γ-HMX hydrate
α-CL-20 hydrate
propellant
ballistic efficiency
density
Opis:
An analysis of the ballistic characteristics of propellants based on energetic pseudopolymorphic solvates has been performed. It is shown that the ballistic efficiency of solid composite propellants containing γ-HMX or α-CL-20 can be improved considerably by means of the introduction of small molecules into the structural cavities present in the crystal structures of these polymorphs. This effect may appear when small molecules (e.g. water, hydrazine, ethanol) enter into the crystal structure of the main component with no changes in the lattice parameters of the latter.
Źródło:
Central European Journal of Energetic Materials; 2014, 11, 2; 285-294
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 22

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