Abstract
In 1989, Japan, firstly industrialized the selective hydrogenation of benzene to cyclohexene and the downstream products catalytic technology. Their technologies were transferred to our country in 1995 and 2005, respectively. The main technical indexes of the first-generation catalyst were as follows: the conversion of benzene was 40%, the selectivity of cyclohexene was 80%, and the yield of cyclohexene was 32%. For the second-generation catalyst: benzene conversion was 51%, cyclohexene selectivity was 77.7%, and cyclohexene yield was 40%. However, due to the lack of technology for catalyst preparation, the autonomic and sustainable development of domestic enterprise has been restricted seriously.
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