为了打开劣质能源资源的利用途径,进行了油页岩和褐煤热解干馏以及地下共气化试验.热解时,两者均在400℃开始有大量气体析出,在500℃～600℃达到最大,析出气以氢气和甲烷为主,并含微量的C2和C3的烷烯烃等;地下共气化时,气化剂从空气到富氧空气能够使煤气的有效组分含量大幅提升,但气化剂(Φ)(O2)在30％～50％变化时,得到的煤气的有效组分含量并没有太大差异,因此以(Φ)(O2)为40％的富氧气化时的煤气组分较为经济,此时煤气中有效组分体积分数约为40.79％,热值约5300KJ/m3,沿气化通道方向,页岩层先后出现气体析出峰值,页岩层析出气体中烷烯烃组分的体积分数C2＞C3＞C4,且其均在1％以下;经历高温燃烧气化后,黄褐色、致密的油页岩变成疏松、分层开裂明显的岩块.%Pyrolysis and underground co-gasification tests of oil shale and lignite were carried out in order to find out a utilization way of the low-quality energy resources. The results showed that for the pyrolysis of both oil shale and lignite, there were a large amount of gases, mainly hydrogen and methane with some C2 and C3 hydrocarbons etc., released at 400℃, and reaching maximum at 500℃ to 600℃; and for the co-gasification of oil shale and lignite, the contents of the efficient components, H2, CO and CH4, in the generated gases obviously increased when the gasification agent was switched from air to rich oxygen air, but they didn't changed obviously when the volume fraction of O2 in gasification agent changed from 30% to 50%, and the most economical value of volume fraction of C2 was 40%, for this composition of gasification agent, the generated gas had a total volume fraction of CH4, H2 and CO of 40.79%, and its heat value was about 5300kJ/m3. Along the gasification channel, the alkanes and alkenes content in the released gas reached a maximum at different time in different location, and the volume fraction order of alkanes and alkenes was Co2> C3>C4 and they were all below 1%. After gasification, the yellowish-brown compact oil shale became loose and bedding-clear rock.
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