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Wyświetlanie 1-15 z 168
Tytuł:
Parameters affecting efficiency of flue gas desulfurization system using wet limestone method
Autorzy:
Romanik, E.
Powiązania:
https://bibliotekanauki.pl/articles/134774.pdf
Data publikacji:
2016
Wydawca:
ADVSEO
Tematy:
limestone
reactivity
limestone sorbents
Opis:
Efficiency of Flue Gas Desulfurization System (FGD) is affected by numerous technical parameters like: proper fuel preparation, quantity and quality of fuel, combustion conditions in furnace chamber, quality of flue gas corresponding to the operating conditions of FGD system, design quantity and quality of flue gas at the inlet of FGD system, design quantity and quality of used sorbent, design quantity and quality of process water. The FGD system shall meet the required parameters of particulate emission, quantity of used media and quality of products for the whole variation range of flue gas volumetric stream. The paper outlines the effect of sorbent properties (physical properties and chemical constitution, particle-size distribution, content of CaCO3 and alkaline oxides (MgO, K2O, Na2O and contaminating substances, e.g. aluminosilicates) on efficiency of FGD system using wet limestone method.
Źródło:
Technical Issues; 2016, 1; 66-73
2392-3954
Pojawia się w:
Technical Issues
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Sokoliska Limestone, a new regional marker horizon of coccolith laminites in the Oligocene of the Outer Carpathians : diagnostic features and stratigraphic position
Autorzy:
Ciurej, A.
Haczewski, G.
Powiązania:
https://bibliotekanauki.pl/articles/191771.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Coccolith limestone
Sokoliska Limestone
Oligocene
isochronous marker
Outer Carpathians
Opis:
Isochronous horizons of pelagic coccolith limestones are important regional stratigraphic markers in the Oligocene sequences of the Outer Carpathians. Three widely recognized limestone horizons are the Tylawa Limestones, the Jasło Limestone and the Zagórz Limestone horizons. Another regional marker horizon is described here, the Sokoliska Limestone horizon, situated between the Jasło Limestone and Zagórz Limestone horizons in the nannoplankton NP24 Zone. Its lithologic characteristics allow it to be distinguished from the other limestones, especially under the optical microscope. Its dark laminae are greatly enriched in non-calcareous material. The limestone contains tests of planktonic foraminifers, but these are much less abundant than in the Jasło Limestone. The boundaries with the marly shales above and below are often more gradational than is the case with the other limestone horizons.The Sokoliska Limestone has been recognized over a distance of ca.550 km in the Skole (Tarcãu) and Silesian units of the eastern and northern parts of the Outer Carpathians. Four sections of the Sokoliska Limestone horizonin the Polish and Romanian Carpathians are described; the exposure in the Sokoliska cliff of the Solinka River at Bukowiec was selected as the reference locality.
Źródło:
Annales Societatis Geologorum Poloniae; 2016, 86, 4; 415-427
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reddish multiphase infillings in the megalodontid bivalves and solution voids in Julian Alps – NW Slovenia
Autorzy:
Slapnik, Lucija
Rožič, Boštjan
Gale, Luka
Rožič, Petra Žvab
Waśkowska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/24202120.pdf
Data publikacji:
2023
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Slovenia
Alps
limestone
Opis:
At a nature-preserve protected site in the Julian Alps (NW Slovenia), in the Pod Peski valley, red fillings of megalodontid bivalves occur within the Upper Triassic Dachstein limestone. Based on optical and cathodoluminescent microscopy and X-ray fluorescence (XRF) analysis, four generations of shell fillings were recognized, some of which contain both cement and sediment subgenerations. Logging and sampling of the limestone sequence a few meters below and above the “main” layer containing the megalodontids mentioned above revealed that the limestone is characterized by solution voids similar to the megalodontids. Namely, these voids are also filled with reddish multigeneration sediment with alternating calcite cement. Adjacent neptunian dykes were studied to clarify their influence on the last generation fillings. Two of them, located directly on the “main” layer with red-filled megalodontids, contain planktonic foraminifera, indicating Middle Jurassic or younger age. The next two neptunian dykes are located directly above the “main” layer, and one contains clasts with calpionellids characteristic of the Late Jurassic/Early Cretaceous. The last dyke explored is located a few tens of meters from the “main” layer and is several hundred meters long. In a few sample from this dyke Early Cretaceous planktonic foraminifera were identified. Microscopic analysis revealed that the reddish sedimentary fillings are part of a complex palaeokarst system that produced the first three generations of fillings, and in the last (fourth) generation we noted similarities between the megalodontid fillings and neptunian dykes on the “main” bedding plane. In addition, a Santonian–Maastrichtian sedimentary fill with globotruncanid foraminifers were discovered in the upper part of the succession in one of the solution voids.
Źródło:
Geotourism / Geoturystyka; 2023, 1-2 (72-73); 64--64
1731-0830
Pojawia się w:
Geotourism / Geoturystyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dębnik and Paczółtowice “Marbles” in the architecture of Krakow
Autorzy:
Makowska, D.
Powiązania:
https://bibliotekanauki.pl/articles/89214.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:
carboniferous limestone
Paczółtowice marble
Dębnik limestone
Polish onyx
Dębnik anticline
Opis:
In the architecture of Krakow we can find many stones which were quarried mostly from de-posits situated not far from the town. They gave a unique image of present, visible elements in the architecture. Many artists used a marble as the building and decorative stone, in sculptures and sepulchral art. Since XIVth century one of the most popular types of stone, which have been applied in the architecture of Krakow, is the Dębnik “marble”. After polishing, it has a deep black colour and, together with Paczółtowice “marble” has been given the fantastic complement of decorative elements in the monu-ments. In the Krakow we can find a lot of places where both “marbles” have been applied as a decorative elements in the architecture. These stones were forming the cultural heritage of Cracow. Usually they are used in sacred architecture. Dębnik and Paczółtowice “marbles” have been applied in many places, for example at the St Mary's Church and at the Wawel Cathedral, as well at Collegium Maius, St Adalbert’s Church in Market Square or at St Peter and Paul’ Church.
Źródło:
Mining Science; 2015, 22, Special Issue 2; 79-92
2300-9586
2353-5423
Pojawia się w:
Mining Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
First discovers of Pleistocene authigenic carbonate crusts (ACC) at the Mendeleev Rise, Arctic Ocean
Autorzy:
Pakhalko, A.
Krylov, A.
Mirolyubova, E.
Taldenkova, E.
Rekant, P.
Powiązania:
https://bibliotekanauki.pl/articles/184273.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
tectonic data
dolomite
limestone
Opis:
The Mendeleev Rise (or Mendeleev Ridge) is a part of Central Arctic Uplifts domain that extends from the Eastern Siberian Shelfto the central areas of the ocean, where it is adjacent to the Alpha Ridge bisecting the Amerasian Basin. The crust of Mendeleev Rise belongs to the continental type (Poselov et al. 2007). New geological, geophysical and tectonic data were obtained within Alpha-Mendeleev Rise after few expeditions to Arctic Ocean in year 2000, 2005 and 2012. Thousands of rock fragments were dredged: 50–65% – carbonate rocks (mainly dolomite and limestone); 20–25% – sandstones, siltstones, mudstones; 5–20% – igneous rocks (mainly granites, gabbro-dolerite and few types of basalt); ~ 10% – metamorphic rocks (mainly greenschist facies). Light dolomites with little flora and fauna represent about two-thirds of the total amount of carbonate rocks, the rest are limestones, often containing well-preserved faunal remains. Paleontological study of limestones show abundance of D-P 1 fauna remnants that give us an evidence of structural connection of Mendeleev Rise and Wrangel Island (Morozov et al. 2013). Carbonate crusts were dredged from steep slopes (25–29°) with neotectonic faults on two sites at water depth more than 2 km during expedition “Arktika-2012”. Primary study showed that crusts compose of strong matrix with rounded and angular debris of local (edaphogenic) material: dolomites, dolerites, granites, metasomatic and terrigenous rocks of different size (0.5 mm to 5 cm) (Morozov et al. 2013, Kremenetskii et al. 2015). Three samples of matrix and two of soft clay-carbonate crust’s cover were selected for detailed analysis. Petrographic features were studied using optical microscope, microprobe and X-ray analysis. Chemical elements analysis was performed with XRF and ICP-MS. All analyses were carried out in A.P. Karpinsky Russian Geological Research Institute (VSEGEI) in Saint-Petersburg. AAC’s Matrix studied with microprobe in details and consists offine-grained calcite with angular quartz grains from 1 μm to 300 μm. X-ray analysis shows calcite predominance in the matrix (>70%), rest content is presented with clasts of quartz, illite and albite – about 10%, dolomite, chlorite, montmorillonite, chamosite – 1–2%. Clasts of local debris are presented by two association: 1) large, mainly angular clasts with size from 0.5 mm to 5 cm; 2) small, mainly rounded clasts with size from 200 μm to 0.5 mm. Surface of matrix and debris is covered with soft rose clay-carbonate mass. Mineral content of clay-carbonate mass is: quartz and illite – 25–30%, calcite and albite 15–20%, chlorite, orthoclase, halite, dolomite, montmorillonite – 1–5%. Chemical composition (in percents) of matrix is close to clay-carbonate terrigenous rocks: SiO 2 – 18, Al 2 O 3 – 3.62, TiO 2 – 0.2, Fe 2 O 3 t – 1.4, MnO – 0.05 MgO – 2.35, CaO – 39.2, Na 2 O – 0.18, K 2 O – 0.47, P 2 O 5 – 0.12, L.O.I. – 34.3. Rose mass differs from matrix with silica – 46, CaO – 19, higher alkalis (Na and K) – 1.15 and 1.3. Difference in content of silica (18% vs 46%), CaO (39.2% vs 19%) says that AAC matrix and rose mass have various sources. In contrast to Paleozoic remnants in carbonates, the AAC contain planktonic and benthic foraminifera of Pleistocene age. In Arctic seas, these species are distributed in modern conditions mainly in places where the Gulf Stream arrives (Herman 1974). These data indicates local origin of ACC, main evidences includes distribution, good preservation of samples, local debris in matrix, paleontological age. However, carbonates are very limited in the Arctic Ocean (Emelyanov 2005, Chierici & Fransson 2009). In view of these parameters, AAC can’t form by itself so it may be due only to external factors. Bottom water doesn’t provide such factors. Neither necessary conditions nor material occur in these waters. So in our opinion AAC were formed with help of neotectonic fault which are supposed to be a possible path for hot fluids, which created the conditions for crusts forming and Paleozoic carbonate rocks was a source of CaCO 3.
Źródło:
Geology, Geophysics and Environment; 2016, 42, 1; 109-110
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Manganese oxides from Zalas, Kraków area, southern Poland
Autorzy:
Polak, M.
Gołębiowska, B.
Rzepa, G.
Powiązania:
https://bibliotekanauki.pl/articles/184692.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
intrusion
volcanic rock
limestone
Opis:
The Zalas quarry is located in the southern, marginal part of the Silesian-Cracovian Monocline. Permian rhyodacite laccolith has been exploited here for over 70 years. The intrusion was formed about 260–280 Ma during the Early Permian transtensional, sinistral tectonic regime predominating in central Europe at that time (Nawrocki et al. 2005). Permian volcanic rocks are overlain by a Middle–Upper Jurassic sedimentary sequence, built from sands and sandstones, substituted with the passing of time by limestones and sandy limestones rich in fossils (Matyszkiewicz et al. 2006). Quarrying operations carried out approximately 10 years ago uncovered a fault zone cutting the Middle Jurassic sandy limestones. Exposed breccias was locally encrusted by a hydrothermal mineralization forming thin veinlets cutting the limestone, or surrounding the breccia clasts. Primary mineralization contained small relics of pyrite, chalcopyrite, chalcocite, galena, native bismuth and barite and was significantly replaced by supergene minerals e.g. Fe and Mn oxides, malachite, cuprite, Cu sulphates, iodargyrite, Bi oxychlorides and Na, K chlorides (Gołębiowska et al. 2006, 2010, 2015). The mineralization is most likely connected with rejuvenation of Early-Paleozoic fault zones during the Sava phase of the Alpine orogeny, and subsequent intensive weathering under semi-arid and arid climate in a period between the Oligocene and Middle Miocene (Gołębiowska et al. 2010). In the sandy limestone encrusted by the oxidized mineralization, very interesting Mn-oxides, enriched in numerous heavy metals were encountered. They filled small fractures and voids within the fault breccia. Among them, Tl-rich varieties have been recently reported. Extremely high thallium content, reaching 20.82 wt% Tl 2 O, makes the oxides unique on a world scale (Gołębiowska et al. 2015). In this paper we focused on the variable admixtures in Mn oxides from oxidation zone in Zalas; for this purpose, SEM-EDS and WDS analyses were carried out. Mn oxides in Zalas are accompanied by malachite, Fe oxides (goethite and hematite) and relics of primary mineralization (Matyszkiewicz et al. 2015). Mn and Fe oxides commonly form the yellowish to red-brownish or black tiny grains or cryptocrystalline aggregates with sizes up to a few millimetres across. Manganese oxides contain variable admixtures of Cu, Ca, Pb, Ba, Fe, Ni, Co and Tl. On the basis of chemical analyses, three major Mn oxide types have been distinguished: those enriched in (i) Ni and Co, (ii) Pb and (iii) Ba and Ca. Co-Ni-bearing Mn oxides, probably asbolane-type, contain 17.01–21.58 wt% CoO and 3.05–8.33 wt% NiO. These phases contain also admixtures of Cu (up to 10 wt% CuO) and Al (up to 7 wt% of Al 2 O 3 ), as well as traces of Fe, Ba, Zn, Mg and Tl (up to 0.5 wt%). Interestingly, in Mn oxides of this type, the admixtures of lead are absent. Pb-bearing Mn oxide, probably coronadite, contain up to 21.48 wt% PbO. In its composition various other elements were also noticed: up to 2 wt% CoO, 0.4 wt% NiO and very high concentrations of CuO up to 8 wt%, as well as up to 1 wt% BaO, FeO, CaO Tl 2 O, Al 2 O 3 and traces of Zn and Mg. Chemical mapping indicates that the Ba- or Ca-bearing Mn oxides occur only in marginal parts of zoned MnO 2 aggregates with almost pure MnO 2 in their cores. They contain 78–84 wt% MnO 2, 3–10 wt% BaO and 2.5–4.5 wt% CaO. High contents of Co, Ni, Pb, Cu and Tl in Mn oxides from Zalas indicate a direct link with the primary ore assemblage. High concentration of cobalt and nickel might suggest some connection with Co and Ni mineralization known from nearby Karniowice Travertine (Czerny 1992). Mineral association, as well as crystal morphologies and sizes could indicate hydrothermal origin of at least part of the Mn oxides. However, identification of the particular minerals as well as concluding on the details of their origin is quite difficult on this stage of research.
Źródło:
Geology, Geophysics and Environment; 2016, 42, 1; 120-121
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of porosity on the reactivity of calcium sorbents
Autorzy:
Wichliński, Michał
Kobyłecki, Rafał
Powiązania:
https://bibliotekanauki.pl/articles/127570.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Mineralogiczne
Tematy:
limestone
desulfurization
sorbent
reactivity
fluidization
Opis:
The current work presents the results of seven sorbent samples investigated with respect to SO2 capture. The sorbents’ reactivity and capacity indexes were determined, and the tests were carried out in accordance with the ‘classical’ procedure for limestone sorbents. The reactivity indexes (RIs) of the tested samples were in the range of 2.57 and 3.55 (mol Ca)/(mol S), while the absolute sorption coefficients as determined by the capacity index (CI) varied between 87.9 and 120.6 (g S)/(kg of sorbent). Porosimetric analysis was also carried out and the specific surface area of the samples was found to be between 0.2 and 1.7 m2 /g. The number of micro-, meso- and macro-pores in individual samples was determined from the corresponding pore size distribution histograms, and the values of sorbent RIs and CIs were correlated with the samples’ total porosity and specific surface.
Źródło:
Mineralogia; 2020, 51, 1; 37-45
1899-8291
1899-8526
Pojawia się w:
Mineralogia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Triangles in the walls of the Great Pyramid in Giza
Autorzy:
Zalewski, F.
Powiązania:
https://bibliotekanauki.pl/articles/184627.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
limestone
fossil shell
ancient world
Opis:
The Great Pyramid in Giza is the most researched and most recognisable object from the ancient world (Arnold 1991, Raynaud et al. 2008). Observations of its walls showed difference in colour of some limestone blocks used for building its core. Different colour of blocks results from the amount of fossil shells contained in the limestone. The large number of fossils not only gives the limestone its colour but is also responsible for its hardness. (Badawy 2005). Blocks made of this type of limestone form a triangle in all four walls of the pyramid. Precision of masonry and their fitting is better than that of blocks made of other kind of limestone. The triangles in the pyramid walls were made from a special type of limestone. The Giza plateau consists mainly of middle Eocene nummulite limestone which belongs to the Mokkatam formation. The limestone is partly overlain by late Eocene limestone of the Maadzi formation (Lehner 2004). The main purpose of this paper is to determine the mineralogical and petrographic composition of the blocks, which were used to build the Great Pyramid. Due to the insufficient amount of the veneer blocks, the study focuses on the stones which were used to build the core of the pyramid (Folk & Campbell 1992). According to the author, the better preserved blocks forming the triangles occupy the central parts of the pyramid walls. The best preserved blocks are observed in the first layer. They lay in the distance of 40 m from the corners of the pyramid and they were put in the central part of the pyramid’s foundation. In each subsequent layer their number is decreasing from the both sides. And thus, occurrence of this type of limestone ends up with the single block in the 19th layer, in the central part of each wall. These blocks are lighter and precisely fitted. They are arranged in a characteristic way and create a triangle-shaped feature. The same elements are visible in the next three walls of the Great Pyramid at Giza. The discovery of triangles in four walls of the Great Pyramid broadens our knowledge about its construction. The triangles have been unnoticed through the ages. After presenting the paper by the author, each person will be able to see the triangles without a problem, even on old photographs (Zalewski 2004, 2006). Concluding, the four triangles located at the base of the Great Pyramid at Giza are visible in the four walls of the pyramid. The best visible of them is the triangle located in the western wall, topped with a single stone. It is in the 19th layer of the stones, 16 m 65 cm high. According to the author’s calculations, the angle of all the above-mentioned triangles in its top amounts 155°. The length of its base is about 150 meters.
Źródło:
Geology, Geophysics and Environment; 2016, 42, 1; 141
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The hoax of ocean acidification
Autorzy:
Ollier, Clifford
Powiązania:
https://bibliotekanauki.pl/articles/1051180.pdf
Data publikacji:
2019-09-30
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
ocean
acidification
coral
limestone
pH
Opis:
A widespread alarm is sweeping the world at present about the ill effects of man-made increases in carbon dioxide (CO2 ) production. One aspect is that it may cause the ocean to become acid, and dissolve the carbonate skeletons of many living things including shellfish and corals. However, the oceans are not acid, never have been in geological history, and cannot become acid in the future. Changes in atmospheric CO2 cannot produce an acid ocean. Marine life depends on CO2 , and some plants and animals fix it as limestone. Over geological time enormous amounts of CO2 have been sequestered by living things, and today there is far more CO2 in limestones than in the atmosphere or ocean. Carbon dioxide in seawater does not dissolve coral reefs, but is essential to their survival.
Źródło:
Quaestiones Geographicae; 2019, 38, 3; 59-66
0137-477X
2081-6383
Pojawia się w:
Quaestiones Geographicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dolomitization in diagenetic history of the Stramberk limestones
Autorzy:
Lintnerova, O.
Knietl, M.
Rehakova, D.
Skupien, P.
Vasicek, Z.
Powiązania:
https://bibliotekanauki.pl/articles/183447.pdf
Data publikacji:
2008
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
wapienie typu sztramberskiego
Stramberk Limestone
Źródło:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2008, 34, 3/1; 191-192
0138-0974
Pojawia się w:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The occurrence of Capitanian fusulinoidean fauna and giant bivalve Alatoconchidae from Khao Khwang Formation, Central Thailand
Autorzy:
Charoentitirat, Thasinee
Sirot, Sutharat
Maneerat, Warunee
Powiązania:
https://bibliotekanauki.pl/articles/24202108.pdf
Data publikacji:
2023
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Thailand
limestone
Khao Khwang Formation
Opis:
Khao Khwang Formation is widely distributed in central Thailand. It is represented by Late Pennsylvanian to Middle Permian thick-bedded limestone with chert nodules. Rock samples belonging to this formation have been collected. They are light to dark grey, thick-bedded to massive limestone with black nodular cherts. The abundant and extraordinarily gigantic bivalve Alatoconchidae together with fusulinoidean fauna (Verbeekina verbeeki, Colania douvillei and Pseudodoliolina pseudolepida), fragments of coral, ammonoid, brachiopod, sponge, gastropod, etc. were observed. Based on the characteristic fusulinoidean fauna, it indicates Capitanian in age. Microscopically, limestone samples were classified as bioclastic rudstone and packstone. The detailed lithologic and carbonate microfacies observations, Alatoconchidae beds, deposited parallel to the bedding plane and related with oncoids and microbial, are autochthonous in shallow marine. Condensed accumulation of other fossil fragments found in the study areas might be transported by gravity flow.
Źródło:
Geotourism / Geoturystyka; 2023, 1-2 (72-73); 14
1731-0830
Pojawia się w:
Geotourism / Geoturystyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Źródła sorbentów wapiennych do odsiarczania spalin w Polsce w kontekście potrzeb krajowej energetyki
Sources of limestone sorbents for flue gas desulphurization in Poland in the context of the needs of domestic power industry
Autorzy:
Galos, K.
Szlugaj, J.
Burkowicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/282841.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
odsiarczanie spalin
sorbenty wapienne
wapienie
gips syntetyczny
flue gas desulphurization
limestone sorbents
limestone
synthetic gypsum
Opis:
W ostatnim ćwierćwieczu w polskiej elektroenergetyce zawodowej zbudowano znaczną liczbę instalacji odsiarczania spalin (IOS), co pozwoliło czterokrotnie ograniczyć całkowitą emisję SO2 do 0,4 mln Mg w 2013 r., a udział SO2 zatrzymanego w tych instalacjach wzrósł do ponad 80% w 2013 r. W konsekwencji zanotowano wzrost krajowego zapotrzebowania na sorbenty wapienne z poziomu praktycznie zerowego w 1990 r. do około 2,5 mln Mg rocznie obecnie, a branża energetyczna stała się jednym z najważniejszych odbiorców polskiego przemysłu wapienniczego. W artykule zaprezentowano metody odsiarczania stosowane w polskich elektrowniach i elektrociepłowniach i rodzaje użytkowanych w nich sorbentów oraz scharakteryzowano ich użytkowanie. Poddano analizie proces wdrażania systemów odsiarczania w krajowych elektrowniach z podaniem zdolności produkcyjnej i poziomu rzeczywistej produkcji gipsów syntetycznych. Przedstawiono bazę zasobową oraz wielkość podaży skał i surowców wapiennych w Polsce z uwzględnieniem głównych kierunków ich zastosowań. Przedstawiono także obecne i przyszłe źródła sorbentów wapiennych do odsiarczania spalin metodą mokrą wapienną. Na podstawie oficjalnych planów rozwojowych polskiej energetyki przedstawiono prognozę podaży gipsów z odsiarczania w najbliższej dekadzie, a także prognozę zużycia sorbentów wapiennych stosowanych w energetyce.
In the last twenty five years a large number of flue gas desulphurization (FGD) installations was constructed in the Polish power industry, so domestic SO2 emission was reduced fourfold, and amounted to ca. 0.4 million Mg in 2013, while SO2 capture increased to over 80%, respectively. Consequently, a significant increase in domestic demand for limestone sorbents was recorded, from virtually zero in 1990 to about 2.5 million Mgpy today, and power industry has become one of the most important customers of limestone industry. The paper shows the methods used in the flue gas desulphurization in Polish heat and power plants, the types of utilized sorbents, characterizing also their use. Moreover, the paper presents process of the implementation of FGD along with potential and real gypsum production in domestic power plants. Furthermore, paper shows the resource base and the volume of supply of limestone and related rocks in Poland in relation to the main directions of their use. The current and future sources of limestone sorbents applied in FGD in wet method were also presented. Taking into account official plans of the development of the Polish energy production, the forecast of the synthetic gypsum production as well as the use of limestone sorbents in the next years has been made.
Źródło:
Polityka Energetyczna; 2016, 19, 2; 149-170
1429-6675
Pojawia się w:
Polityka Energetyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wapienie z Czatkowic i różnorodność ich zastosowania
Czatkowice limestone : diversity of its application
Autorzy:
Kuć, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2075892.pdf
Data publikacji:
2019
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Krzeszowice
Czatkowice
limestone
architecture
wapień
architektura
Opis:
The aimof this article is to show the directions of using limestone from the Czatkowice mineral deposit (near Kraków, southern Poland). Because of the high purity of this raw material, it is widely used in many industries. The limestones found application in production of mineral sorbents and limestone powder and sand, crushed aggregates and in the past these rocks were applied as flux for metallurgy. In recent years different color and textural varieties of Czatkowice limestone cut by veined calcite have also been employed as building and architectural material, which is best exemplified by the new church in Krzeszowice.
Źródło:
Przegląd Geologiczny; 2019, 67, 1; 56--59
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrophobization of fine solids presented on the example of limestone powder
Autorzy:
Vogt, E.
Powiązania:
https://bibliotekanauki.pl/articles/778257.pdf
Data publikacji:
2008
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
hydrofobizacja
pył wapienny
hydrophobization
limestone powder
Opis:
The work proposes a new method of hydrophobization of limestone powder from stearic acid vapour or stearic acid ether solution. The obtained product is characterised by all properties typical of water-resistant materials. The evaluation of these properties has been carried out according to Polish Standard PN-G-11020 and analysed with research methods originally used for powder technique.
Źródło:
Polish Journal of Chemical Technology; 2008, 10, 1; 49-51
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Limestone in flue gas desulphurization in oxygen-enriched atmospheres. Part I. The effect of CO2 on limestone calcination
Autorzy:
Kochel, A.
Cieplińska, A.
Szymanek, A.
Powiązania:
https://bibliotekanauki.pl/articles/185532.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
kalcynacja
wapień
CO2
calcination
limestone
Opis:
The article describes the testing of four selected samples of limestone originating from four commercially exploited deposits. The tests of sorbents included a physicochemical analysis and calcination in different atmospheres. The main aim of the tests was to determine the possibilities for using limestone during combustion in oxygen-enriched atmospheres. Tests in a synthetic flue gas composition make it possible to assess the possibility of CaC03 decomposition in atmospheres with an increased C02 concentration.
Źródło:
Chemical and Process Engineering; 2012, 33, 2; 255-262
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 168

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