碳二前加氢催化剂PEC-21在乙烯装置上的工业应用

摘要

采用中国石油石油化工研究院开发的碳二前加氢催化剂PEC-21,在中国石油大庆石化公司27万t/a乙烯装置上进行了首次工业应用.结果表明,在反应压力为3.4 ~3.6 MPa,空速为7000 ~9000 h-1,进料量为55~71 t/h的条件下,乙炔平均转化率达到54%,乙烯平均选择性达到94%,丙烯平均选择性达到96%,各项反应性能指标满足装置要求.%The C2front-end hydrogenation cata-lyst PEC-21,developed by PetroChina Petrochemi-cal Research Institute,was firstly applied in a 270 kt/a ethylene unit of Daqing Petrochemical Company,PetroChina.The results showed that un-der the conditions of reaction pressure 3.4 -3.6 MPa,space velocity 7 000 -9 000 h -1,feed quantity 55 - 71 t/h,the average conversion of acetylene reached to 54 %,the selectivity of ethyl-ene and propylene was 94 %,96 % respectively, and each reaction performance index could meet the requirement.