Thermal alteration of biomarkers in the presence of elemental sulfur and sulfur-bearing minerals during hydrous and anhydrous pyrolysis

被引：9
作者：
Wu, Liangliang [1 ]
Fang, Xinyan [1 ,2 ]
Ji, Shuhuan [1 ]
Geng, Ansong [1 ]
机构：
[1] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
[2] Univ Chinese Acad Sci, Yuquan Rd, Beijing 100049, Peoples R China
来源：
ORGANIC GEOCHEMISTRY | 2018年 / 123卷
关键词：
Sulfur alteration of biomarker; Biomarker concentration; Biomarker distribution; THERMOCHEMICAL SULFATE REDUCTION; SOURCE ROCKS; SICHUAN BASIN; MATURITY PARAMETERS; ORGANIC-MATTER; LABORATORY EXPERIMENTS; COAL-LIQUEFACTION; OIL-SHALE; STEROID HYDROCARBONS; CARBONATE RESERVOIRS;
D O I：
10.1016/j.orggeochem.2018.06.010
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Although elemental sulfur and sulfur-bearing minerals are not the main constituents of sedimentary rock, they are still important for the formation and destruction of biomarkers. In this study, a bitumen of Sichuan Basin mudstone with abundant biomarkers was separately pyrolyzed (under both hydrous and anhydrous conditions) with elemental sulfur (S degrees) and sulfur-bearing minerals (including pyrite, ferrous sulfate, and ferric sulfate) at various temperatures (300, 330 and 350 degrees C). The results show that the effects of different forms of sulfur on the evolution of biomarkers vary. Pyrite (FeS2) had only a slight influence on the characteristics of the biomarkers during anhydrous and hydrous pyrolysis. On the other hand, the presence of S, ferrous sulfate (FeSO4) and ferric sulfate (Fe-2(SO4)(3)) promoted the thermal cracking of the biomarkers and changed the biomarker distributions under anhydrous conditions. The extent of biomarker thermal alterations decreased in the following order: S degrees > Fe-2(SO4)(3) > FeSO4 > FeS2. Additionally, the presence of water seemed to promote the effects of the sulfur additive on the changes in biomarker compositions, but this did not change their raking in terms of influence. The elemental sulfur alteration of the biomarkers increased with pyrolysis temperature (simulated maturity) and the abundance of elemental sulfur in the sample. The results obtained offer new insights into how biomarkers evolve when elemental sulfur and sulfur-bearing minerals are present. (C) 2018 Elsevier Ltd. All rights reserved.
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页码：74 / 89
页数：16
相关论文
共 104 条
[41]   Formation of H2S and sulfur-rich bitumen from a reservoired heavy oil in the presence of elemental sulfur [J].
Kowalewski, Isabelle ;
Schaeffer, Philippe ;
Adam, Pierre ;
Dessort, Daniel ;
Fafet, Anne ;
Carpentier, Bernard .
ORGANIC GEOCHEMISTRY, 2010, 41 (09) :951-958
[42]   CHEMICAL AND ISOTOPIC EVIDENCE OF THERMOCHEMICAL SULFATE REDUCTION BY LIGHT-HYDROCARBON GASES IN DEEP CARBONATE RESERVOIRS [J].
KROUSE, HR ;
VIAU, CA ;
ELIUK, LS ;
UEDA, A ;
HALAS, S .
NATURE, 1988, 333 (6172) :415-419
[43]   ALTERNATIVE INTERPRETATION OF COAL-LIQUEFACTION CATALYSIS BY PYRITE [J].
LAMBERT, JM .
FUEL, 1982, 61 (08) :777-778
[44]   THE REACTION OF PYRITE WITH WATER-VAPOR [J].
LEVY, JH ;
WHITE, TJ .
FUEL, 1988, 67 (10) :1336-1339
[45]   Sulphur-radical control on petroleum formation rates [J].
Lewan, MD .
NATURE, 1998, 391 (6663) :164-166
[46]   Experiments on the role of water in petroleum formation [J].
Lewan, MD .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1997, 61 (17) :3691-3723
[47]   EVALUATION OF PETROLEUM GENERATION BY HYDROUS PYROLYSIS EXPERIMENTATION [J].
LEWAN, MD .
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1985, 315 (1531) :123-134
[48]   EFFECTS OF THERMAL MATURATION ON STEROID HYDROCARBONS AS DETERMINED BY HYDROUS PYROLYSIS OF PHOSPHORIA RETORT SHALE [J].
LEWAN, MD ;
BJOROY, M ;
DOLCATER, DL .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1986, 50 (09) :1977-1987
[49]   The characteristics of the biomarkers and δ13C of n-alkanes released from thermally altered solid bitumens at various maturities by catalytic hydropyrolysis [J].
Liao, Yuhong ;
Fang, Yunxin ;
Wu, Liangliang ;
Geng, Ansong ;
Hsu, Chang Samuel .
ORGANIC GEOCHEMISTRY, 2012, 46 :56-65
[50]   The separate production of H2S from the thermal reaction of hydrocarbons with magnesium sulfate and sulfur: Implications for thermal sulfate reduction [J].
Lu, Hong ;
Greenwood, Paul ;
Chen, Tengshui ;
Liu, Jinzhong ;
Peng, Ping'an .
APPLIED GEOCHEMISTRY, 2012, 27 (01) :96-105
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