为了顺利完成首套流化床甲醇制丙烯FMTP工业示范装置投料试车。通过对采用大连化物所甲醇制烯烃DMTO技术、中石化甲醇制烯烃SMTO技术、神华集团甲醇制烯烃SHMTO技术和甲醇制丙烯MTP技术的同类型企业考察和技术交流，经过与FMTP工艺技术对比分析，发现原FMTP装置催化剂回收系统、三器之间催化剂循环管道、洗涤水换热系统、余热回收系统和反应器测量仪表系统在设计方面存在不足。根据同行业装置建设和运行经验，废催化剂回收系统设计改造锁斗回收系统，催化剂循环管线优化改造为提升管加法兰管帽，洗涤水换热器优化改造二甲苯清洗系统，余热回收设备优化改造蒸汽自动吹灰系统，反应器测量仪表优化改造反吹系统。经过上述工艺优化，催化剂回收系统解析气中可燃气含量显著降低，且避免催化剂粘黏结块；三器之间催化剂循环管线优化设计提升管、提升管顶部设计缓冲管加管帽，在装置运行期间三器之间的催化剂流通顺畅，反应器待生催化剂循环量、待生管温度、待生管密度、待生管压力指标接近或达到设计指标；启动二甲苯清洗系统对堵塞的换热器进行化学冲洗，换热器清洗效果明显；自动蒸汽吹灰系统投运后，余热回收系统效率显著提高；反应器仪表反吹风优化为工艺气后避免惰性组分对分离工艺影响。FMTP装置在四次试车过程中上述系统运行平稳，为装置长周期安全稳定运行奠定基础。

In order to successfully complete the commissioning of the first industrial demonstration unit of methanol to propylene FMTP in fluidized bed, through the investigation and technical exchange of similar enterprises using methanol to olefin (DMTO) technology of Dalian Chemical Institute, methanol to olefin (SMTO) technology of Sinopec, methanol to olefin (SHMTO) technology of Shenhua Group and methanol to propylene technology (MTP) in China, through the comparison and analysis with FMTP process technology, it was found that there were deficiencies in the design of the catalyst recovery system of the original FMTP unit, the catalyst circulation pipeline between the three units, the heat transfer system of washing water, the waste heat recovery system and the reactor measurement instrument system. According to the construction and operation experience of the same industry, the waste catalyst recovery system was designed and transformed into a bucket recovery system. The catalyst circulating pipeline was optimized to be a lifting pipe and a flange tube cap, the xylene cleaning system was optimized to be in the washing water heat exchanger, the steam automatic ash blowing system was optimized to be in the waste heat recovery equipment, and reactor instrument back blower system was optimized to be in the reactor measuring instrument. After the above process optimization, the content of combustible gas in the analytical gas of the catalyst recovery system was significantly reduced, and the catalyst was prevented from sticking together; the catalyst circulation pipelines of the three reactors were designed the lifting tube, the buffer tube and tube cap were designed at the top of the lifting tube; the catalyst circulation between the three reactors was smooth during the operation of the plant, the parameters of the catalyst circulation, the temperature of the tube, the density of the tube and the pressure of the tube in the reactor were close to and reached the design indicators; start the xylene cleaning system to wash the blocked heat exchanger, and the heat exchanger cleaning effect is obvious; after the automatic steam ash blowing system is put into operation, the efficiency of waste heat recovery system is significantly improved; the inert gas of reactor instrument back blower system was optimized to process gas, avoid the influence of inert gas on the downstream separation unit. In the four commissioning runs of FMTP device, the above system runs smoothly, it lays the foundation for the long cycle safe and stable operation of the plant.