首页|期刊导航|中国地球化学学报（英文版）|Thermogravimetry-differential thermal analysis coupled with chromatography as a thermal simulation experimental method and its application to gaseous hydrocarbons from different source rocks
中国地球化学学报（英文版）2005，Vol.24Issue(3)：289-296,8.
Thermogravimetry-differential thermal analysis coupled with chromatography as a thermal simulation experimental method and its application to gaseous hydrocarbons from different source rocks
Thermogravimetry-differential thermal analysis coupled with chromatography as a thermal simulation experimental method and its application to gaseous hydrocarbons from different source rocks
摘要
Abstract
In this paper a thermogravimetry-differential thermal analysis method coupled with chromatography (TG-DTA-GC) has been adopted to simulate the generation of gaseous hydrocarbons from different hydrocarbon source rocks such as coals, mudstones, and carbonate rocks with different maturities. The temperature programming for thermal simulation experiment is 20℃/min from ambient temperature to 700℃. As viewed from the quantities and composition of generated gaseous hydrocarbons at different temperatures, it is shown that low-mature coal has experienced the strongest exothermic reaction and the highest loss of weight in which the first exothermic peak is relatively low. Low-mature coal samples have stronger capability of generating gaseous hydrocarbons than high-mature samples. The amounts and composition of gaseous hydrocarbons generated are closely related not only to the abundance of organic carbon in source rocks, but also to the type of kerogen in the source rocks, and their thermal maturity. In the present highly mature and over-mature rock samples organic carbon, probably, has already been exhausted, so the production of gaseous hydrocarbons in large amounts is impossible. The contents of heavy components in gaseous hydrocarbons from the source rocks containing type-Ⅰand -Ⅱ kerogens are generally high; those of light components such as methane and ethane in gaseous hydrocarbons from the source rocks with Ⅲ-type kerogens are high as well. In the course of thermal simulation of carbonate rock samples, large amounts of gaseous hydrocarbons were produced in a high temperature range.关键词
hydrocarbon source rock/thermal simulation experiment using TG-DTA-GC/gaseous hydrocarbonKey words
hydrocarbon source rock/thermal simulation experiment using TG-DTA-GC/gaseous hydrocarbon分类
化学化工引用本文复制引用
SHI Ji'an,ZHAO Xin,WANG Qi,LIU Quanyou..Thermogravimetry-differential thermal analysis coupled with chromatography as a thermal simulation experimental method and its application to gaseous hydrocarbons from different source rocks[J].中国地球化学学报（英文版）,2005,24(3):289-296,8.基金项目
This work was financially supported jointly by the Key Knowledge-Innovation Project of the Chinese Academy of Sciences (No. KZCX3-SW-128), the National Natural Science Foundation of China (Grant No. 40272065) and the Key Laboratory of Gas Geochemistry (No. SJJ-03-02, 04). （No. KZCX3-SW-128）
