ORGANIC GEOCHEMISTRY OF N-ALKANES FROM TARIM COAL WITH DIFFERENT MATERIALS IN PYROLYSIS UNDER CLOSED SYSTEM
Online published: 2006-06-20
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.
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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