Activation method and reaction device for preparing methyl ethyl ketone catalyst through sec-butyl alcohol dehydrogenation

• Main Authors: SUN XIAOMING, FENG WEI, ZHANG LUPING, JIAO WEI, ZHAO SHIZHU, ZHAI XIPING, CHE PINGSHENG, LI YONGCHAO, SONG YIQING, ZHU XIUQING, XIE BAOHAN, GUO RUI, QU JIANLIN
• Format: Patent
• Language: Chinese; English
• Published: 03.01.2020
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention belongs to the technical field of sec-butyl alcohol dehydrogenation catalyst activation, and particularly relates to an activation method and a reaction device for preparing a methyl ethyl ketone catalyst through sec-butyl alcohol dehydrogenation. Firstly, catalyst physically adsorbed water is removed, then nitrogen-water vapor is adopted as diluent gas, sec-butyl alcohol is fed at alow air speed to activate the catalyst, and finally, the catalyst is subjected to enhanced reduction through sec-butyl alcohol feeding. According to the activation method for preparing the methyl ethyl ketone catalyst through sec-butyl alcohol dehydrogenation, different reduction methods are adopted in different stages of the activation process of the catalyst, the problems that a traditional alcohol reduction method is large in bed layer temperature rise and prone to carbon deposition can be effectively solved, the one-way service life of the activated catalyst can be effectively prolonged,and use energy consumption