%0 Journal Article
%T STUDY ON THE GAS GENERATING ABILITY OF COAL IN DIFFERENT SYSTEMS<br>煤在2种不同体系的生气能力研究
%A Research Institute of Petroleum Exploration
%A Development
%A PetroChina
%A Beijing
%A China
%A <br>米敬奎
%A 戴金星
%A 张水昌
%A 李贤庆
%J 天然气地球科学
%D 2007
%I 
%X In this paper, the authors simulated the gas generating ability of coal in semi-opened and closed systems. The results show that there is a great difference in the gas generating process of coal in the two systems. The temperatures at which coal begins to generate gas and the gas-generating peak appears in the semi-opened system are higher than those in the closed system. The generated gas amount in the semi-opened system is less than that in the closed system at the same temperature, one reason for this is that the heavy hydrocarbons can be expelled out in the semi-opened system and can not be cracked into methane at high temperatures. The pressure can be an advantage for gas generation. The opening degree of a system has a great influence on the gas generation ability of coal.
%K Simulation experiment
%K Gas generating ability
%K Closed system
%K Semi-opened system<br>模拟实验
%K 生气能力
%K 封闭体系
%K 半开放体系
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=E8CFCA71B77A2FF3&jid=ACDC74B90F609E2435847898490F3647&aid=67EBAFE0D88578A1&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=0B39A22176CE99FB&sid=E2E0FBFE4D7EFB94&eid=FBA00558C57D9C11&journal_id=1672-1926&journal_name=天然气地球科学&referenced_num=0&reference_num=17