稻壳快速热解超临界乙醇提质系统的-环境分析  

EXERGOENVIRONMENTAL ANALYSIS OF RICE HUSK FAST PYROLYSIS AND BIO-OIL UPGRADING IN SUPERCRITICAL ETHANOL SYSTEM

作　　者：吕子婷 仲兆平[1] 石坤 于点[1] Lyu Ziting, Zhong Zhaoping, Shi Kun, Yu Dian(Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environmental, Southeast University, Nanjing 210096, China)

机构地区：[1]东南大学能源热转化与过程测控教育部重点实验室能源与环境学院

出　　处：《太阳能学报》2018年第10期2876-2883,共8页Acta Energiae Solaris Sinica

基　　金：国家重点基础研究发展(973)计划(2013CB228106);国家自然科学基金(51276040)

摘　　要：基于[火用]分析、生命周期评价和[火用]-环境分析方法，对稻壳热解超临界乙醇提质制取生物油系统进行能源利用率和环境性能的综合分析。结果表明，设计工艺下系统的[火用]效率为55．50％；生物油在全生命周期内的温室气体排放量为49．33g CO2-eq／MJ，超临界乙醇提质阶段化石乙醇的使用是生物油生命周期内的主要污染源；[火用]-环境分析表明，热解气冷凝器、焦炭燃烧炉膛、热解载气加热器和烟气冷却器等单元在减少稻壳热解提质制油系统的环境影响方面具有较大的优化潜力。The comprehensive analysis of energy utilization rate and environmental performance of rice husk pyrolysis supercritical ethanol upgrading to produce bio-oil system was carried out based on exergy analysis, life cycle assessment （LCA） and exergo-environmental analysis. The results show that the exergy efficiency of the system is 55.5% under the design process, the greenhouse gas emissions of bio-oil throughout the life cycle are 49.33 g CO2-eq/MJ, the use of fossil ethanol in supercritical ethanol upgrading stage is the main pollution source in the bio-oil life cycle. The exergoenvironmental analysis results reveal that the pyrolysis gas condenser, coke combustor, pyrolysis carrier gas heater and the flue gas cooler etc. units have great optimization potential in reducing environmental impacts of rice husk pyrolysis and upgrading oil system

关 键 词：[火用]-环境分析 [火用]分析 生命周期评价 超临界乙醇提质 

分 类 号：TK6[动力工程及工程热物理—生物能]