A methanol to olefin(MTO)plant mainly produces ethylene,propylene and mixed C5 fractions.In order to improve the high-value utilization of C5 fractions,the Baotou MTO plant adopts a C5 fractions reprocessing process in regenerated catalyst delivery pipe.Mixed C5 fractions reprocessing can increase the production of ethylene and propylene,and at the same time realizes pre-carbon deposition on the catalyst to improve its activity.The effect of C5 fractions reprocessing on MTO reaction performance is analyzed through comparing the differences in the production components of the plant before and after reprocessing C5 fractions.It is indicated that total yield of ethylene and propylene increases by 1.03％,the ethylene-to-propylene ratio decreases by 0.011,and comprehensive economic benefits increases by RMB 2512 per hour.
关键词
甲醇制烯烃/MTO催化剂/碳五裂解/乙烯/丙烯
Key words
methanol to olefins/MTO catalyst/C5 cracking/ethylene/propylene
维普
万方数据