生物质与煤混合热解过程中H_2S的排放特性  

The emission characteristics of H_2S during co-pyrolyzing of biomass and coal

作　　者：董信光[1] 张格睿[2] 程世庆[3] 

机构地区：[1]山东电力研究院锅炉所,山东济南250002 [2]华能黄台发电厂,山东济南250100 [3]山东大学能源与动力工程学院,山东济南250061

出　　处：《洁净煤技术》2010年第4期44-48,共5页Clean Coal Technology

摘　　要：选取麦秆、玉米秆、棉秆、杨木屑与无烟煤、烟煤进行H_2S排放特性的混合热解实验研究,实验过程中采用热重-色谱-质谱连用技术对混合热解过程中产生的H_2S气体进行了在线测量,研究和分析了热解温度和生物质的掺混比例对H_2S排放的影响。结果表明:生物质的加入使煤析出H_2S提前,随着生物质比例的增加,H_2S在更低的温度下有更大的析出速度;生物质对烟煤和无烟煤析出H_2S的影响都存在一个温度分界点,在分界点前后有着较大的区别。Four kinds of biomass （wheat stalks, corn stalks, cotton stalks and wood dust） and anthracite coal, bituminous coal were co-pyrolyed to study the rules of H2S releasing. Gas Chromatogram （GC） and Mass Spectrum （MS） were used to test the H2S release during co-pyrolyzing, influencing factors including co-pyrolyzing temperature and biomass proportion were investigated. The results show that H2S released from blends co-pyrolyed is earlier than coal, more H2S separate out at a lower temperature. There is a turning point of co-pyrolyzing temperature, the effeeting condition is absolutely different lower and higher than that temperature.

关 键 词：H2S 排放特性 生物质 煤 混和热解 

分 类 号：TK6[动力工程及工程热物理—生物能] TQ203.8[化学工程—有机化工]