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Wyświetlanie 1-15 z 29
Tytuł:
Functioning of the flue gas treatment system in Polish municipal waste incineration plants
Autorzy:
Czerwińska, Justyna
Wielgosiński, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/118747.pdf
Data publikacji:
2020
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
flue gas treatment
waste incineration plant
dioxins
Opis:
All municipal waste incineration plants operating in Poland are discussed and their flue gas treatment systems are described in detail in the article. A comparison of performance indicators, i.e. the amount of raw materials consumed particularly in flue gas treatment systems, is presented. The article also summarizes the results of emission measurements for eight incineration plants in the years 2016–2019.
Źródło:
Scientific Review Engineering and Environmental Sciences; 2020, 29, 1; 108-119
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of new generation odorants applicability in the Polish natural gas distribution network
Autorzy:
Liszka, K.
Łaciak, M.
Olinyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/298846.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
odorization
sulfur-free odorant
natural gas delivery
gas treatment
Opis:
Odorization is the process which has crucial impact on the safety of the distribution and usage of natural gas. A very small amounts of odorant are added into naturally odorless fuel. The odorant has distinctive and well odor. Traditionally, used for decades, odorants are based on sulfur compounds. More recently in some countries sulfur-free compound is used as odorant. This article is an attempt to determine the applicability of sulfur-free odorant in natural gas distribution network in Poland. This includes the possibility of implementing a new odorant for the usage in the aspect of existing legislation in the area of odorization. The existing infrastructure used in the process of natural gas odorization has been analyzed and range of necessary adaptation actions has been indicated. The issue of smell diversity in comparison sulfur-free with traditionally used odorants has also been discussed. At the end, the ecological aspects of new odorant usage on a larger scale and re being taken under consideration.
Źródło:
AGH Drilling, Oil, Gas; 2014, 31, 1; 59-71
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rate constants of electron-beam PAHs decomposition
Autorzy:
Gerasimov, G.
Powiązania:
https://bibliotekanauki.pl/articles/147629.pdf
Data publikacji:
2007
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
electron beam flue gas treatment
PAHs decomposition
rate constants
hydroxyl radical
Opis:
The generalized kinetic model of the electron-beam induced processes in industrial flue gases elaborated earlier is used for the estimation of rate constants of hydroxyl-radicals interaction with high-ringed aromatic compounds. These data are received by means of the fit of the calculated PAHs concentrations to the measured ones as applied to benzo(a)anthracene, benzo(e)pyrene, benzo(a)pyrene, perylene, and dibenzo(a,h)anthracene. It is shown that the concentrations of PAHs decrease by more than an order of magnitude at the absorbed dose D = 20 kGy for compounds with rate constant of their interaction with OH-radical more than 1013 cm3źmol 1źs 1.
Źródło:
Nukleonika; 2007, 52, 3; 105-108
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Non-thermal plasma reactor use in marine diesel engine exhaust system
Autorzy:
Borkowski, T.
Myśków, J.
Kalisiak, S.
Hołub, M.
Powiązania:
https://bibliotekanauki.pl/articles/248135.pdf
Data publikacji:
2008
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
marine diesel engine
exhaust emission gas treatment
non-thermal plasma reactor
Opis:
Large seagoing vessels are one of the largest pollution sources in the sea environment world. Marine engines operate with extremely low quality fuels contaminated by sulphur and aromatic compounds. Vessels are responsible for an estimated 14 percent total nitrogen oxide emission and 16 percent sulphur oxide, respectively. Nitrogen oxides emissions cause serious problems including acid rain in local areas such as harbours' vicinity. All diesel engine manufacturers have been working on reducing on NOx from ships. This paper describes one of the experimental methods - using non-thermal plasma reactor. NTP reactor was built as the after-treatment module in exhaust gas system in marine diesel engine. Emission measurements were carried out on the engine with and without demonstrator NTP module. The main aim was to analyze exhaust gas compounds during real engine operation, in accordance with test cycles procedureD-2 and E-2 (ISO-8178 rules). The experiment test bench gives the innovative role in the development exhaust gas after-treatment technology for marine systems. One of the most promising methods to decrease the number of toxic compounds from exhaust gas is implementing of NTP reactor as after main treatment module. As the next steps a two-stage plasma-chemical process for the control of harmful compounds: non-thermal plasma reactor and catalyst is proposed. This combination should be more effective and probably gives reduction with more efficiency of harmful exhaust gas compounds.
Źródło:
Journal of KONES; 2008, 15, 3; 37-44
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of low temperature plasma nox control system for marine diesel engine
Autorzy:
Borkowski, T.
Myśków, J.
Hołub, M.
Kalisiak, S.
Powiązania:
https://bibliotekanauki.pl/articles/243384.pdf
Data publikacji:
2007
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
marine diesel engine
exhaust emission gas treatment
low temperature plasma reactor
Opis:
The control of nox emissions from marine engines proves a challenge. Diesel engine manufacturers have been investigating a variety of methods with aim of reducing nox emissions. Currently, the plasma technology is undergoing rapid development in application to diesel engine exhausts. A combination of non-thermal plasma with catalysts can be referred to plasma assisted catalysts technology. This paper briefly describes research efforts aimed at non-thermal plasma reactor development for ship use with primary focus on NO oxidation condition. The part scale plasma reactor models have been designed and manufactured for the purpose of this trial. Exhaust emission plasma after-treatment module was fitted on exhaust outlet path of the marine test bed engine for fractional exhaust gas stream examination. Subsequently, the comprehensive series of trials were performed to assess the exhaust flow properties of the main exhaust channel and plasma reactor by-pass duct. Emission measurements were carried out on engine at steady-state operation. The NO reaction activity was a major task of the experiment and throughout the measurements, the engine outlet nox levels (NO and NO2) were monitored with simultaneous NO, NO2, N2O level recording after NTP reactor.
Źródło:
Journal of KONES; 2007, 14, 3; 91-99
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Plasma technology to remove NOx from off-gases
Autorzy:
Pawelec, Andrzej
Chmielewski, Andrzej G.
Sun, Yongxia
Bułka, Sylwester
Torims, Toms
Pikurs, Guntis
Mattausch, Gösta
Powiązania:
https://bibliotekanauki.pl/articles/2055686.pdf
Data publikacji:
2021
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
electron beam
flue gas treatment
marine diesel engines
NOx
SOx
ship emissions
Opis:
Operation of marine diesel engines causes signifi cant emission of sulphur and nitrogen oxides. It was noticed worldwide and the regulations concerning harmful emissions were introduced. There were several solutions elaborated; however, emission control for both SOx and NOx requires two distinctive processes realized in separated devices, which is problematic due to limited space on ship board and high overall costs. Therefore, the electron beam flue gas treatment (EBFGT) process was adopted to ensure the abatement of the problem of marine diesel off-gases. This novel solution combines two main processes: fi rst the fl ue gas is irradiated with electron beam where NO and SO2 are oxidized; the second stage is wet scrubbing to remove both pollutants with high efficiency. Laboratory tests showed that this process could be effectively applied to remove SO2 and NOx from diesel engine off-gases. Different compositions of absorbing solution with three different oxidants (NaClO, NaClO2 and NaClO3) were tested. The highest NOx removal efficiency (>96%) was obtained when seawater-NaClO2-NaOH was used as scrubber solution at 10.9 kGy dose. The process was further tested in real maritime conditions at Riga shipyard, Latvia. More than 45% NOx was removed at a 5.5 kGy dose, corresponding to 4800 Nm3 /h off-gases arising from ship emission. The operation of the plant was the first case of examination of the hybrid electron beam technology in real conditions. Taking into account the experiment conditions, good agreement was obtained with laboratory tests. The results obtained in Riga shipyard provided valuable information for the application of this technology for control of large cargo ship emission.
Źródło:
Nukleonika; 2021, 66, 4; 227--231
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The application of RANS CFD for design of SNCR technology for a pulverized coal-fired boiler
Autorzy:
Ruszak, M.
Inger, M.
Wilk, M.
Nieścioruk, J.
Saramok, M.
Kowalik, W.
Rajewski, J.
Wajman, T.
Kacprzak, W.
Tadasiewicz, D.
Powiązania:
https://bibliotekanauki.pl/articles/778027.pdf
Data publikacji:
2017
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
NOx emission abatement
power plant boilers
selective non-catalytic reduction
flue gas treatment
Opis:
The article describes the technology of NOx  emission abatement by SNCR method. The scope of research included CDF simulations as well as design and construction of the pilot plant and tests of NOx  reduction by urea in the plant located in industrial pulverized-coal fired boiler. The key step of research was to determine the appropriate temperature window for the SNCR process. The proposed solution of the location of injection lances in the combustion chamber enabled to achieve over a 30% reduction of NOx . It is possible to achieve higher effectiveness of the proposed SNCR technology and meet the required emission standards via providing prior reduction of NOx  to the level of 350 mg/um3 using the primary methods.
Źródło:
Polish Journal of Chemical Technology; 2017, 19, 2; 101-106
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A review on electron beam flue gas treatment (EBFGT) as a multicomponent air pollution control technology
Autorzy:
Basfar, A. A.
Fageeha, O. I.
Kunnummal, N.
Chmielewski, A. G.
Licki, J.
Pawelec, A.
Zimek, Z.
Warych, J.
Powiązania:
https://bibliotekanauki.pl/articles/148616.pdf
Data publikacji:
2010
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
fossil fuel combustion
heavy fuel oil
electron beam irradiation
plasma processes
flue gas treatment
SO2 removal
NOx removal
Źródło:
Nukleonika; 2010, 55, 3; 271-277
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy Recovery from Municipal and Other Waste
Odzysk energetyczny odpadów komunalnych
Autorzy:
Lapcik, V.
Lapcik, V., jr
Cablik, V.
Powiązania:
https://bibliotekanauki.pl/articles/318862.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
odpady komunalne
zużycie energii
spalarnie
oczyszczanie spalin
zgazowanie
pyroliza
emisja
municipal waste
energy use
incinerators
flue gas treatment
gasification
pyrolysis
emission
Opis:
The article summarizes possibilities of energy recovery from municipal and other waste. It describes the history of incineration and energy recovery from municipal waste in Czechoslovakia and then in the Czech Republic. The attention is paid to the three currently operated plants for energy recovery from municipal waste in the Czech Republic (ZEVO Malešice, SAKO Brno, TERMIZO Liberec, and ZEVO Chotíkov). The following are the characteristics of the planned plants for energy recovery from municipal waste in the Czech Republic. All these plants operate essentially based on grate boilers with fl ue gas treatment at the highest technical level. The article also lists other technologies, which can be used for energy recovery from municipal waste - these are gasifi cation and pyrolysis units. The final part of this contribution is devoted to the emission values of fl ue gases from pyrolysis plant.
W artykule podsumowano możliwości odzysku energii z odpadów komunalnych i innych rodzajów odpadów. Opisano rozwój technologii spalania i odzysku energii z odpadów komunalnych w Czechosłowacji, a następnie w Czechach. Zwrócono uwagę na trzy obecnie eksploatowane instalacje do odzysku energii z odpadów komunalnych działające w Republice Czeskiej (ZEVO Malešice, SAKO Brno, TERMIZO Liberec i ZEVO Chotíkov). Przedstawiono charakterystykę planowanych instalacji do odzysku energii z odpadów komunalnych w Republice Czeskiej. Wszystkie zakłady działają zasadniczo w oparciu o kotły rusztowe z oczyszczaniem spalin na najwyższym poziomie technicznym. W artykule przedstawiono również inne technologie, które mogą być wykorzystane do odzysku energii z odpadów komunalnych – instalacje do zgazowania i pirolizy. Ostatnia część artkułu poświęcona jest analizie poziomu emisji gazów spalinowych z instalacji do pirolizy.
Źródło:
Inżynieria Mineralna; 2018, R. 20, nr 2, 2; 265-272
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distortion of 16MnCr5 steel parts during low-pressure carburizing
Autorzy:
Dybowski, K.
Niewiedzielski, R.
Powiązania:
https://bibliotekanauki.pl/articles/102321.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
thermo-chemical treatment
low pressure carburizing
distortion
gas quenching
Opis:
One of the many advantages of low pressure carburizing (LPC) is that it can be combined with high-pressure gas quenching. This makes it possible to achieve workpieces with pure metallic surfaces, less distortion hardening, and, above all, it allows a more reliable and repeatable treatment than conventional oil quenching. This article presents a study of the distortion rate of workpieces carburized at low pressure then quenched in nitrogen at 1.4 MPa. By comparing the distortion which takes place during the carburizing stage only and the carburizing combined with post-carburizing heat treatment it will be possible to assess the distortion rate and its causes at the different stages of the heat treatment process.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 1; 201-207
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Treatment of methanol-containing wastewater at gas condensate production
Autorzy:
Ivanov, Andrey
Strizhenok, Alexey
Borowski, Gabriel
Powiązania:
https://bibliotekanauki.pl/articles/2174366.pdf
Data publikacji:
2022
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
biological treatment
gas condensate
hydrates
methanol
rectification
regeneration
wastewater
Opis:
The purpose of the study was to assess the impact of industrial wastewater on the concentration of methanol in the considered section of the Ob River basin, present proposals for the implementation of a new treatment system and analyse the implementation results. On the basis of the results of the analysis of the known methods for reducing the concentration of methanol in water, a new technological scheme for post-treatment of effluents using biological treatment with methylotrophic Methylomonas methanica Dg bacteria was proposed. The calculation of the dilution of treated wastewater using the “NDS Ecolog” program was carried out on the basis of the detailed calculation method of Karaushev, the results of which showed a decrease in the concentration of methanol in the control section to 0.0954 mg∙dm-3 (permissible concentration is 0.1 mg∙dm-3). During the period of the flood of the Glukhaya channel, it ceases to be a separate water body and, in fact, becomes part of the flood channel of the Ob River. Certain parts of the flooded areas, due to elevation changes, communicate with the channel only during a short period of time when the water level rises, i.e. 3-5 weeks during the flood period, and in fact remain isolated reservoirs for the rest of the time, potentially acting as zones of accumulation and concentration of pollutants.
Źródło:
Journal of Water and Land Development; 2022, 54; 84--93
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geochemical features of fossil fuel contaminants found in urban wastes (Siemianowice Śląskie, Poland)
Autorzy:
Wojtoń, Anna
Fabiańska, Monika
Powiązania:
https://bibliotekanauki.pl/articles/2086495.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Mineralogiczne
Tematy:
fossil fuel biomarkers
gas chromatography-mass spectrometry
wastewater treatment
Opis:
In sludge samples collected in the "Centrum" wastewater treatment plant in Siemianowice Śląskie, Poland, the composition of aliphatic- and aromatic hydrocarbons and polar compound fractions were investigated by gas chromatography-mass spectrometry (GC-MS). Samples collected in accordance with Polish standards were extracted, the extracts were separated into fractions with preparative thin layer chromatography (TLC), which next were investigated by GC-MS. The following compound groups of the geochemical origin were identified: n-alkanes in the range of n-C14 to n-C.39, acyclic isoprenoids (mainly pristane and phytane), steranes, tri- and pentacyclic triterpanes. Based on the distribution of biomarkers and their parameters, it was established that the dominant component of extractable organic matter in sluge is petroleum material of an unspecified origin. Its geochemical features indicate that its most likely source was crude oil (or its products) of a relatively high degree of thermal maturity (catagenic stage of thermal evolution corresponding to vitrinite reflectance 0.7-0.8%). Aromatic hydrocarbons probably originated from petroleum also, though some of them can be attributed to the products of combustion or to sources such as bituminous coals, the ash from coal/biofuel combustion or coal wastes stored nearby.
Źródło:
Mineralogia; 2011, 42, 1; 19--32
1899-8291
1899-8526
Pojawia się w:
Mineralogia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geochemical features of fossil fuel contaminants found in urban wastes (Siemianowice Śląskie, Poland)
Autorzy:
Wojtoń, A.
Fabiańska, M.
Powiązania:
https://bibliotekanauki.pl/articles/2086535.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Mineralogiczne
Tematy:
fossil fuel biomarkers
gas chromatography-mass spectrometry
wastewater treatment
Opis:
In sludge samples collected in the "Centrum" wastewater treatment plant in Siemianowice Śląskie, Poland, the composition of aliphatic- and aromatic hydrocarbons and polar compound fractions were investigated by gas chromatography-mass spectrometry (GC-MS). Samples collected in accordance with Polish standards were extracted, the extracts were separated into fractions with preparative thin layer chromatography (TLC), which next were investigated by GC-MS. The following compound groups of the geochemical origin were identified: n-alkanes in the range of n-C14 to n-C.39, acyclic isoprenoids (mainly pristane and phytane), steranes, tri- and pentacyclic triterpanes. Based on the distribution of biomarkers and their parameters, it was established that the dominant component of extractable organic matter in sluge is petroleum material of an unspecified origin. Its geochemical features indicate that its most likely source was crude oil (or its products) of a relatively high degree of thermal maturity (catagenic stage of thermal evolution corresponding to vitrinite reflectance 0.7-0.8%). Aromatic hydrocarbons probably originated from petroleum also, though some of them can be attributed to the products of combustion or to sources such as bituminous coals, the ash from coal/biofuel combustion or coal wastes stored nearby.
Źródło:
Mineralogia; 2011, 42, 1; 19--32
1899-8291
1899-8526
Pojawia się w:
Mineralogia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Application of Deep Cryogenic Treatment to Improve the Properties of Nitrided Layers Formed on X153CrMoV12 Steel
Autorzy:
Wach, P.
Ciski, A.
Babul, T.
Kapuścińska, A.
Oleszak, D.
Powiązania:
https://bibliotekanauki.pl/articles/355130.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
gas nitriding
nitride layers
cryogenic treatment
heat treatment
tribology
corrosion resistance
X153CrMoV12 steel
Opis:
Deep cryogenic treatment (DCT) is gaining popularity as a treatment used to modify structures obtained during heat or thermo-chemical treatment. The article presents the influence of DCT, carried out during heat treatment before and after gas nitriding processes, on the formation of gas nitrided layers on X153CrMoV12 steel. It was found that the use of DCT between quenching and tempering performed prior to gas nitriding processes, increases the hardness, thickness and wear resistance of the nitrided layers. At the same time, if we apply cryogenic treatment during post-heat treatment of nitrided layers, we also get very high wear resistance and increased thickness of nitrided layers, in comparison with conventional gas nitriding of X153CrMoV12 steel. In this case, DCT significantly increases also the hardness of the core by the transformation of retained austenite and the precipitation of fine carbides of alloying elements.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 1; 303-309
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Atmospheric-Pressure Gas-Plasma Treatment on Surface Properties of Hot-Dip Zn-Mg-Al Alloy-Coated Steel
Autorzy:
Jeong, Chang-U
Kim, Jae-Hyeon
Park, Je-Shin
Kim, Min-Su
Kim, Sung-Jin
Oh, Min-Suk
Powiązania:
https://bibliotekanauki.pl/articles/2203736.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
plasma treatment
Zn-Mg-Al-galvanized steel
surface energy
process gas
Opis:
The effect of plasma-radical change on the surface properties of Zn-Mg-Al ternary-alloy-coated steel sheets during atmospheric-pressure (AP) plasma treatment using different process gases: O2, N2, and compressed air was investigated. The plasma-induced radicals promoted the formation of chemical particles on the surface of the Zn-Mg-Al coating, thereby increasing the surface roughness. The surface energy was calculated using the Owen-Wendt geometric equation. Contact angle measurements indicated that the surface free energy of the alloy sheets increased upon AP plasma treatment. The surface properties of the Zn-Mg-Al coating changed more significantly in the order air > O2 > N2 gas, indicating that the plasma radicals facilitated the carbonization and hydroxylation of the Mg and Al components during the AP plasma treatment.
Źródło:
Archives of Metallurgy and Materials; 2023, 68, 1; 187--190
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
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