关键词: 连续重整装置, 生成油, 脱烯烃, 白土精制, 液相加氢, 分子筛吸附, 运行费用

Abstract: Three domestic typical olefin removal processes (clay refining, molecular sieve deolefin and hydrodeolefin with noble metal catalyst) are compared from the aspects of principle, reaction conditions, removal effect, one-time investment cost, long-term operation cost, etc. The one-time investment cost of clay deolefin process is the lowest and the long-term operation cost is the highest. The one-time investment cost of noble metal catalyst combined with clay deolefin process is the highest, which is 7.8 times of the one-time investment cost of clay deolefin process. But the long-term operation cost is the lowest and the longer the operation cycle, the more obvious the economic benefit. From the perspective of environmental protection, a large amount of hazardous waste clay can be reduced every year by selecting precious metal catalyst combined with clay olefin removal technology scheme. After comprehensive comparison, the technical scheme of noble metal catalyst combined with clay for olefin removal is selected.

Key words: continuous reforming unit, reaction oil, deolefin, clay refining, liquidphase hydrogenation, molecular sieve adsorption, operating cost