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调研分析了2012-2014年我国炼油厂的碳排放特征,运用物质流分析方法,建立了催化裂化装置系统的碳素流模型和评价指标体系.在此基础上,结合现场运行数据,分析了催化裂化装置的碳素流动,并运用数学规划方法对主要影响因素进行了优化分析.研究结果表明,直接排放是炼油厂碳排放的主要形式,催化裂化装置是石油炼制过程碳排放的主要装置,反应再生子系统是催化裂化装置的主要碳排放源,注入渣油量和加热炉燃烧效率是影响反应再生子系统的主要因素.“,”As is known,oil refinery enterprise is one of the main sources of CO2 emissions.The CO2 emission characteristics of oil refinery enterprise in China in 2012-2014 are analyzed.The carbon flow model and evaluation indicators are established based on Substance Flow Analysis (SFA).The factors affecting the carbon emission are analyzed by mathematical programming for the catalytic cracking unit (CCU).The results show that direct emission is the main form of carbon emissions in oil refinery enterprise.The biggest contributor is CCU.91.29％ of CO2 are released to the environment by the reaction-regeneration sub-system of CCU.The residue amount and combustion efficiency are the main factors affecting reaction-regeneration sub-system.