Results 11 to 20 of about 493 (133)
Origin and Distribution of Large Asphaltite in South China [PDF]
ACS Omega, 2020 Large quantities of Triassic solid asphaltite were discovered in the Guangyuan area, northwest Sichuan. The asphaltite is formed in layers with a vertical thickness between 0.3 and 2.8 m and is stably distributed with intrusive contact with surrounding rocks. This study aims on the genesis and distribution of asphaltite through trace element, biomarker,
Guangyou Zhu +7 more
doaj +5 more sources
Lower cretaceous avian-dominated, theropod, thyreophoran, pterosaur and turtle track assemblages from the Tugulu Group, Xinjiang, China: ichnotaxonomy and palaeoecology [PDF]
PeerJ, 2021 Rich tetrapod ichnofaunas, known for more than a decade, from the Huangyangquan Reservoir (Wuerhe District, Karamay City, Xinjiang) have been an abundant source of some of the largest Lower Cretaceous track collections from China.
Lida Xing +12 more
doaj +3 more sources
Infrared Spectral Classification of Natural Bitumens for Their Rheological and Thermophysical Characterization [PDF]
Molecules, 2023 Natural bitumens consist of many molecules whose chemical composition depends on the oilfield and determines the physicochemical properties of the bitumens as materials.
Anastasiya Y. Yadykova +2 more
doaj +2 more sources
Organoporosity Evaluation of Shale: A Case Study of the Lower Silurian Longmaxi Shale in Southeast Chongqing, China [PDF]
The Scientific World Journal, Volume 2014, Issue 1, 2014., 2014 The organopores play an important role in determining total volume of hydrocarbons in shale gas reservoir. The Lower Silurian Longmaxi Shale in southeast Chongqing was selected as a case to confirm the contribution of organopores (microscale and nanoscale pores within organic matters in shale) formed by hydrocarbon generation to total volume of ...
Fangwen Chen +3 more
wiley +2 more sources
Investigation of the cleanability of asphaltite by flotation
Chemical Physics Letters, 2021 Abstract Southeastern Anatolia Region of Turkey/Sirnak asphaltites centers are located in and around large reserves in coal mines. Due to the high ash and sulfur content of asphaltite coal, it is important to use it by cleaning with enrichment methods, in terms of solving environmental problems and increasing energy quality.
Bilgin, Öykü
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Investigation of surface properties of Avgamasya asphaltite
Fuel Processing Technology, 1994 Abstract Surface properties of Avgamasya asphaltite were investigated by the adsorption method using N 2 and CO 2 gases. In order to see the effect of ash content and pyrolysis temperature on the surface properties of asphaltite, samples were washed with 15% (v/v) HCl to reduce the ash content, and then pyrolyzed in a nitrogen atmosphere between ...
Afife Güvenç +3 more
core +6 more sources
DESULFURIZATION AND DEMINERALIZATION OF ASPHALTITE BY AQUEOUS CAUSTIC LEACHING [PDF]
Oil Shale, 2007 The method of desulfurization and demineralization by aqueous caustic leaching (ACL) was used for treatment of asphaltite samples front Seguruk collieries of Sirnak asphaltite fields, situated in Southeast Anatolia region of Turkey.
Saydut, A., Duz, M. Z., Hamamci, C.
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NICKEL SPECIATION IN ASPHALTITE BOTTOM ASH
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings, 2017 Asphaltites derive from petroleum origin. The combustion of asphaltites produces fly and bottom ashes that are characterized by a high content of valuable elements such as vanadium, nickel, molybdenum, uranium, thorium, sulfur and unburnt carbon [1].
Aydin F., Kavak O., Fidan C., Aydin I.
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CHROMIUM AND THALLIUM IN TURKISH ASPHALTITE SAMPLE
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings, 2017 Asphaltite derives from petroleum origin solid fossil fuel [1]. It contains valuable elements such as chromium, thallium molybdenum, uranium etc. Chromium and thallium are very important elements both environmental and health. Chromium has an important role in the metabolism. It keeps the blood sugar level in balance.
Kavak, Orhan +3 more
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Selective oil agglomeration in Sırnak asphaltite beneficiation
Fuel, 2004 Abstract In this study, the possibility of cleaning Sirnak asphaltite by the agglomeration method was investigated. Experimental studies were conducted on the asphaltite sample with ash, sulphur, volatile matter and fixed carbon contents of 44.8, 6.0, 38.0, and 17.2 wt%, respectively. For this purpose, laboratory tests were carried out to investigate
Abakay, H, Ayhan, FD, Kahraman, F
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