关键词: 重整生成油, 烯烃, 反应机理, 烷烃异构化, 烷烃脱氢环化, 白土精制, 分子筛催化精制, 选择性加氢精制

Abstract:

The composition and production mechanism of olefins in reformate are analyzed, and the research progress of olefins removal technology in reformate at home and abroad is summarized. The olefins in reformate are mainly C₅～C₇, and the content is related to the type of reforming catalyst and the severity of the reaction. Both particle clay refining and molecular sieve catalytic refining are non-hydrogenation processes, which follow the reaction mechanism of carbonium ion, and mainly occur alkylation and polymerization. The final boiling point of the product and the yield of heavy components increase. The selective hydrorefining technology using noble metal catalyst for olefins removal is the development trend in the future, which has a significantly longer cycle length than clay and molecular sieve catalyst.

Key words: reformate, olefin, reaction mechanism, alkane isomerization, alkane dehydrocyclization, clay refining, molecular sieve catalytic refining, selective hydrorefining