ORGANIC GEOCHEMISTRY OF N-ALKANES FROM TARIM COAL WITH DIFFERENT MATERIALS IN PYROLYSIS UNDER CLOSED SYSTEM

LIU Quan-you~1,LIU Wen-hui~2,MENG Qian-xiang~3

doi:10.11764/j.issn.1672-1926.2006.03.313

Natural Gas Geoscience >

2006 , Vol. 17 >Issue 3: 313 - 318

DOI: https://doi.org/10.11764/j.issn.1672-1926.2006.03.313

ORGANIC GEOCHEMISTRY OF N-ALKANES FROM TARIM COAL WITH DIFFERENT MATERIALS IN PYROLYSIS UNDER CLOSED SYSTEM

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1.Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083,China；

2.Exploration ＆ Production Research Institute, SINOPEC, Beijing 100083, China； 3.Lanzhou Research Center of Oil & Gas Resources,Institute of Geology and Geophysics,Chinese Academy of Sciences, Lanzhou 730000, China

Online published: 2006-06-20

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Abstract

The Jurassic coals from Tarim basin with different minerals and water were subjected to closed system pyrolysis,in sealed steel tubes,under isothermal temperature conditions,ranging from 250 to 550°C at temperature intervals of 50°C(pyrolysis time 72 hours).The distribution of n-alkanes extracted from pyrolysate products illustrates the difference of hydrocarbon origins before and after 400℃.Together with these geochemical features,such as peak types,ΣC 21-)/ΣC_(22+),OEP and Pr/Ph ratios.

Key words： Tarim basin; Coal; Pyrolysis experiment; n-alkanes.

Cite this article

LIU Quan-you~1,LIU Wen-hui~2,MENG Qian-xiang~3 . ORGANIC GEOCHEMISTRY OF N-ALKANES FROM TARIM COAL WITH DIFFERENT MATERIALS IN PYROLYSIS UNDER CLOSED SYSTEM[J]. Natural Gas Geoscience, 2006 , 17(3) : 313 -318 . DOI: 10.11764/j.issn.1672-1926.2006.03.313

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