Influence of temperature and pressure on maturation processes—I. Preliminary report

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	Influence of temperature and pressure on maturation processes—I. Preliminary report
	Cs. Sajgó1 ; J. McEvoy2 ; G.A. Wolff3 ; * and Z.A. Horváth
发表期刊	Organic Geochemistry
	1986
卷号	10 期号:40546 页码:331-337
关键词	Pressurized Heating Experiments Maturation Vitrinite Reflectance Hydrocarbon Generation Configurational Isomerisation Aromatisation Hopanes Hopenes Sterenes Steranes
通讯作者	G.A. Wolff
中文摘要	Immature alginite and lignite were compressed into disks and heated at temperatures ranging from 200 to 450°C under pressures ranging from 0.06 to 2.5 kbar in open and in quasi-closed systems for one week. The liquid and solid products of thermal alteration were investigated by GC, GC/MS and vitrinite reflectance。 The R0 value changed from 0.47% at 200°C to 2.74% at 450°C at low pressure, and from 0.50% at 200°C to 0.91% at 450°c in the quasi-closed system loaded at 2.5 kbar. The distribution of n-alkanes changed with pressure at constant temperature. The formation of hopenes and sterenes and their conversions to hopanes and steranes were retarded in the higher pressure experiments. Isomerization at C-22 in hopanes and at C-20 in steranes was first observed at 400 and 450°C, respectively, and was far from complete in both cases. The aromatization of C-ring monoaromatic steroids to ABC ring triaromatics was only partial (36–38%) at 450°C in the high pressure experiments. Maturation at temperatures higher than 300°C is greatest in the low pressure system (0.06 kbar internal pressure from volatiles) than in open system with 0.06 kbar load, and much greater than in open or quasi-closed systems with static loads of 1.0 or 2.5 kbar.
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/4559
专题	科研共享资源
推荐引用方式 GB/T 7714	Cs. Sajgó1,J. McEvoy2,G.A. Wolff3,等. Influence of temperature and pressure on maturation processes—I. Preliminary report[J]. Organic Geochemistry,1986,10(40546):331-337.
APA	Cs. Sajgó1,J. McEvoy2,G.A. Wolff3,&* and Z.A. Horváth.(1986).Influence of temperature and pressure on maturation processes—I. Preliminary report.Organic Geochemistry,10(40546),331-337.
MLA	Cs. Sajgó1,et al."Influence of temperature and pressure on maturation processes—I. Preliminary report".Organic Geochemistry 10.40546(1986):331-337.

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