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通过测定两种气氛下(氮气和二氧化碳)的催化热解(HZSM-5为催化剂)的产率,并利用气质联用仪(GC/MS)分析热解油的成分,研究这两种热解气氛对快速催化热解生物质(玉米杆)的产率和液体产物的影响差异。结果表明:改变热解气氛对结果产生明显影响,CO2气氛对催化热解不利,该气氛下的固液气产率分别为30.30%,37.89%,31.81%,CO2促使快速催化热解的液体产量降低,促进水相产物的生成。对催化热解油的分析发现CO2气氛抑制了HZSM-5的去氧和芳香化催化作用,同时促进稠环芳烃的生成,使产物结构复杂化。
The yields of pyrolysis oil (HZSM-5 as catalyst) in both atmospheres (nitrogen and carbon dioxide) were measured and the composition of the pyrolysis oil was analyzed by gas chromatography-mass spectrometry (GC / MS) Differences in the effects of atmosphere on the yield of the rapidly catalytically pyrolyzed biomass (corn cob) and the liquid product. The results showed that changing the pyrolysis atmosphere had a significant effect on the results, and the CO2 atmosphere was unfavorable for catalytic pyrolysis. The solid-liquid gas production rates were 30.30%, 37.89% and 31.81% respectively under this atmosphere. The yield of liquid catalyzed by CO2 Reduce, promote the formation of water products. The analysis of the catalytic pyrolysis oil found that the CO2 atmosphere inhibits the deoxygenation and aromatics catalysis of HZSM-5, and at the same time, promotes the formation of condensed aromatic hydrocarbons and complicates the product structure.