关键词: 裂解汽油, 双金属, 催化剂, 选择加氢

Abstract: The catalytic performance of bimetallic Pd-M/Al2O3 catalyst in selective hydrogenation of pyrolysis gasoline was investigated and the effect of feed properties, reactor inlet temperature and total liquid space velocity was discussed. The optimum process conditions were obtained, i.e. a feed diene number of about 10 gI/100g, a reactor inlet temperature of 45℃ and a total liquid space velocity of 22 h-1. Furthermore, mathematic models related with the hydrogenation rate of conjugated diene and adiabatic temperature rise were discussed, and the calculated results were in good agreement with the experimental data.

Key words: pyrolysis gasoline, bimetallic, catalyst, selective hydrogenation