摘要
煤层气液化过程中,甲烷量的不断减少,会使得气体中甲烷浓度有可能穿过爆炸极限而导致气体具有爆炸可能性;同时,液化过程中,压力与温度的变化,会造成液化过程中的一个非标况环境,而现有对于非标况下可燃混合气的爆炸极限的研究却很少,因此对于煤层气液化过程中的爆炸安全难以进行评价。本文广泛调研了国内外相关研究方法,找出各种方法的技术关键,以设计一条切实可行的研究路线来确定非标况下的可燃混合气爆炸极限,评估煤层气液化过程的爆炸风险。
During the liquefaction process of coal bed gas, there might be an explosion occurred as the concentration of methane in the gas might pass through the explosion limits with the amount of methane declining, and the non-standard environmental conditions would come into being due to the changes of pressure and temperature in the liquefaction process. However, the study on the explosion limits of combustible gases under non-standard conditions was rarely reported. As a result, it was difficult to evaluate the explosive risk during the liquefaction process of coal bed gas. The researching methods of explosion limits were surveyed to find the technical key points for designing a practical way for determining the explosion limits of the combustible gases in air at non- standard conditions to evaluate the explosive risk of coal bed methane liquefaction process.
出处
《天然气化工—C1化学与化工》
CAS
CSCD
北大核心
2013年第4期29-33,共5页
Natural Gas Chemical Industry
基金
国家科技重大专项大型油气田及煤层气开发(2008ZX05017-04-01)
国家自然科学基金50804053
关键词
爆炸极限
非标况
研究方法
甲烷
煤层气
explosion limit
non-standard condition
research approach
methane
coal bed methane
