煤层气及天然气中的H2S与SO2及其危害性  

Hazard of H_2S and SO_2 Contents in Coalbed Gas and Natural Gas

作　　者：马玉贞[1] 陶明信[1] 张新民[2] 李晓斌[1] 李晶[1] 解光新[2] 王彦龙[2] 

机构地区：[1]地表过程与资源生态国家重点实验室,北京师范大学环境演变与自然灾害教育部重点实验室,北京100875 [2]煤炭科学研究总院西安研究院,西安710054

出　　处：《地质学报》2008年第10期1408-1415,共8页Acta Geologica Sinica

基　　金：国家重点基础研究规划“973”项目(编号2002CB211706,2002CB211701);教育部科技重大项目(编号307007)资助成果

摘　　要：毒害性气体是影响煤层气和天然气质量及安全生产的一个重要因素,但目前缺乏对煤层气中H2S与SO2及其毒害性的系统性研究。本文在介绍H2S和SO2的毒害性及其机理的基础上,研究并讨论了煤层气及天然气中H2S和SO2的含量分布及其存在的主要问题、天然气和煤层气勘探开发中H2S和SO2的腐蚀性与毒性,提出在优选勘探开发煤层气区时,需考虑H2S和SO2的含量问题。气体中H2S的安全临界含量近似值为0.0013%,SO2的安全临界含量可选取为0.036%(尚需进一步研究)。另外,在煤层气勘探开发选区时,成煤期的沉积古地理环境可作为一个考虑因素。Toxic and harmful gas is a critical factor for the quality and safe production of coalbed gas and natural gas. Meanwhile, it is uncommon for systematic study on H2S and SO2 as well as their toxicology and harms in coalbed gas and natural gas. This paper studied the toxicity and its mechanism of H2S and SO2, carried research on the distribution of H2S and SO2 in coalbed gas and natural gas and related major problems, and analyzed and discussed the causticity and toxicicity of H2S and SO2, along with related accidents, in exploration and the mining of natural gas and combed gas. The results strongly recommend that the content of H2S and SO2 be considered in coalbed gas areas for exploring and mining. Initial research has suggested that the safety threshold value is approximately 0. 0013% for H2S, and 0. 036% for SO2. Advanced research is in demand. In addition, the paleogeography deposition environment during the coal forming can serve as an index for selecting coalbed gas areas to explore and mine.

关 键 词：煤层气 天然气 毒害性气体 H2S SO2 

分 类 号：P618.11[天文地球—矿床学] X701.3[天文地球—地质学]