【作者】 李超；

【导师】 仪垂杰； 周扬民； 罗思义；

【作者基本信息】 青岛理工大学 ， 机械电子工程， 2011， 硕士

【摘要】 能源可持续发展的问题已成为当今世界最重要和突出的问题之一。因此，寻求可再生资源和能源的综合利用，已成为人类发展的必然趋势。生物质油是一种在存储和运输方面具有巨大优势的可再生清洁能源，是化石燃料的最好替代品之一，生物质裂解液化技术是目前世界各国研究的热点问题。目前国内外生物质热裂解反应器都存在能耗大，成本高等缺陷，这是限制生物质热解液化技术推广应用的关键问题。本文提出采用高炉渣粒化产生的高温空气作为外加热源裂解生物质制取生物油，并设计制造了一种新式的蓄热式生物质热解反应器。该反应器充分利用高炉渣粒化产生的800℃的高温空气的热量裂解生物质，极大程度上降低了生物质热解的成本，反应器中蓄热材料的使用降低了温度控制手段的复杂性。在以“电加热”为外加热源的沉降管式炉固定床反应装置为实验平台进行正交实验，得出获得生物油最大产率的反应温度为630℃，综合考虑传热效率等因素选用金属铝作为蓄热式生物质热解反应器内控制温度的相变蓄热材料。以精细破碎后的玉米秸秆为实验原料，高炉渣粒化产生的800℃的高温空气作为外加热源，在蓄热式生物质热解反应器进行中试实验研究，得出：生物油最高产率达41%，生物油主要由含有甲基、乙基官能团的芳香族化合物和脂肪酸类化合物组成，由于含有较多的脂肪酸类化合物，生物油的PH为3.7。更多还原

【Abstract】 Energy for sustainable development is one of the most important and critical issuesall over the world. Therefore, the development of renewable resource and thecomprehensive utilization of energy is the only way for human development. Bio-oil isa kind of energy that has great advantages in store and transport, and it is one of bestalternatives for fossil fuels. The biomass pyrolysis and liquefaction is a hot issue inmany countries.So far, the high energy consumption and cost for all the present biomass pyrolysisreactors are the key problems that limit the universal use of biomass pyrolysisliquefaction. The high temperature air produced during the Blast Furnace SlagGranulation used as the heat resource to pyrolysis biomass is put forward, and a novelheat accumulating biomass pyrolysis reactor is designed and manufactured.As the high temperature, about800℃, is being used in this reactor, the cost ofbiomass pyrolysis is drastically cut down. Besides, the heat storage material used in thisreactor simplies the ways for the temperature control.Based on the down pipe fixed bed in which the electricity is used as the heatresource, the best reaction temperature is got through orthogonal test. Considering theheat transfer efficiency, the metal Al is chosen as the phase change material in thereactor for temperature control.With the maize straw being used as the experimental material after being broken,and the high temperature being used as the heat resource, the pyrolysis is carried on inthe heat accumulating biomass pyrolysis reactor. The bio-oil productivity reaches41%.The aromatic compounds and fatly acids compounds are contained in the bio-oil.Owning to the fatly acids compounds the PH of bio-oil is3.7. Besides,10%of thebio-oil is water, so the bio-oil must be treated before being used.更多还原