微量元素对褐煤有机质热解成烃的影响  

Effects of trace elements on pyrogenic hydrocarbon generation of lignite

作　　者：卢红选[1] 孟自芳[1] 李斌[1] 李相博[1] 郑民[1] 

机构地区：[1]中国科学院地质与地球物理研究所

出　　处：《油气地质与采收率》2008年第2期64-66,共3页Petroleum Geology and Recovery Efficiency

基　　金：国家“973”项目“多种能源矿产共存成藏(矿)机理与富集分布规律”(2003CB214606);中国科学院知识创新重要方向项目“中国西北深层气与未熟-低熟烃研究”(KZCX3-SW-147)

摘　　要：有机—无机相互作用是沉积盆地中普遍存在且不可改变的事实。采用热模拟实验方法,考察了钼、硒和锆等微量元素对褐煤样品热解生烃产物的影响。分析结果表明,除硒元素外,随着钼元素和锆元素的加入,褐煤有机质气态产物的生成量显著提高。通过对液态抽提物的分析,发现微量元素钼、锆和硒均能明显地促进饱和烃和芳烃的降解,从而降低了它们的产率,并在一定程度上加速了有机质的成熟。Organic-inorganic interactions are ubiquitous and unalterable in sedimentary basins. In this paper, effects of molybdenum, zirconium and selenium and some other trace elements on pyrogenic hydrocarbon generation of lignite was researched. The results indicated that the trace elements molybdenum and zirconium increased considerably the gas yields of the lignitic organic matter while selenium did not. The analysis of liquid extract showed that all the trace elements molybdenum, zirconium and selenium increased the degradation rate and decreased the producing rate of aromatic hydrocarbons and saturated hydrocarbons which accelerated the maturity of the organic matter in a certain extent.

关 键 词：微量元素 热解油 褐煤 有机质成烃 

分 类 号：TE125.2[石油与天然气工程—油气勘探]