关键词: 催化剂, 加氢, 选择性, 碳三馏分, 甲基乙炔和丙二烯(MAPD), 工业应用

Abstract: The new supported selective hydrogenation catalyst for C₃ fraction was developed and successfully applied in the 770kt/a ethylene plant. Its various operation parameters and mechanical strength were tested on the side line unit according to the characteristics of the liquid phase hydrogenation process. It was found that the new catalyst of BC-L-83G was obvious superior to the previous BC-L-83 on the wear and crush resistances and the long-term running ability, with wide operation temperature range and excellent sensitivity to the molar ratio of H₂/MAPD. The 12-month running results of industrial application indicated that the BC-L-83G had the advantages of high catalytic activity, good selectivity, strong fluctuant resistance and long regeneration cycle, which is worth for further commercial applications.

Key words: catalyst, hydrogenation, selectivity, C₃ fraction, methylacetylene and propadiene(MAPD), industry application