Abstract: The feasibility analysis of integrating methanol to oil(MTO) with FCC process is based on their similarities and compatibility. Feeding methanol as part of FCC feedstock is proposed to produce more light olefins. According to the characteristics of FCC, the effects of reaction temperature, methanol solution feed, and the coke content of catalyst were studied systematically. The experimental result testified the higher light olefins yields from methanol under FCC condition. The results showed that the highest hydrocarbon yield and its light olefins proportion were 26.3%—28.1％(mass) and 67.8%—66.5％(mass) respectively, on the equilibrium catalyst and 40%(mass) methanol solution feed at 550—600℃. The reaction characteristics of methanol conversion under FCC condition was proposed. The results provide important reference for the process of feeding methanol as part of FCC feedstock.

摘要： 基于甲醇制低碳烯烃（MTO）与催化裂化（FCC）反应及工艺过程的分析、比较，提出二者结合的可能性，将甲醇作为FCC部分进料用以增产低碳烯烃.根据FCC过程特点，通过实验考察反应温度、甲醇水溶液、积炭催化剂等因素对甲醇转化的影响;验证了甲醇在FCC条件下可具有较高的低碳烯烃产率.实验结果表明：在40％(质量分数)甲醇水溶液进料、未积炭催化剂、反应温度550～600℃的条件下，甲醇转化的烃产率可达26.3%～28.1％(质量分数)，低碳烯烃占烃组成的67.8%～66.5％(质量分数).同时对甲醇在FCC条件下的反应特点进行了初步分析.研究结果为进一步实现甲醇作为FCC部分进料提供了重要依据.