MTO与MTP工艺技术和工业应用的进展

摘要

The developments of methanol to olefins(MTO) and methanol to propylene(MTP) in process technology are summarized,the olefin separation technologies are introduced,the industrial application courses of MTO/MTP are collected and the future of MTO/MTP industry is forecasted. The process technologies of MTO and MTP have successfully been applied in commercial scale,and the total olefins capacity of the MTO/MTP projects which have already completed,are being built now and are planned at home has reached 15.19 Mt/a,which will take up more than 1/4 share of the total olefins capacity(ethylene and propylene). In future,it is needed to further improve the catalyst performance and olefins separation processes of MTO/MTP to enhance the yield of olefins and decrease the investment and the specific energy consumption of the plants.%综述了甲醇制烯烃（MTO）/甲醇制丙烯（MTP）工艺技术的进展情况，介绍了烯烃分离技术，汇总了MTO/MTP的工业应用进程，并对MTO/MTP行业进行了展望。MTO/MTP工艺技术已成功地进行了商业化工业规模的应用，我国MTO工艺技术水平和产业进程已居世界前列，尤其是中国科学院大连化学物理研究所的DMTO技术和中国石化上海石油化工研究院的SMTO技术已达到世界领先水平。已经建成和正在建设以及规划筹建的MTO/MTP项目烯烃总产能将达到15.19 Mt/a，MTO/MTP装置全部建成后将占乙烯/丙烯总烯烃产能的1/4以上份额，与2012年底蒸汽热裂解装置乙烯产能16.00 Mt/a相当。今后需要进一步优化MTO/MTP催化剂的性能和烯烃分离工艺以提高烯烃的收率并降低项目工程投资和装置综合能耗。