FLUIDIZED BED DEVICE AND METHOD FOR PREPARING P-XYLENE AND CO-PRODUCING LOW-CARBON OLEFINS FROM METHANOL AND/OR DIMETHYL ETHER AND BENZENE

• Main Authors: TANG, Hailong, LIU, Zhongmin, WANG, Xiangao, ZHANG, Cheng, YE, Mao, LI, Chenggong, ZHANG, Tao, JIA, Jinming, HE, Changqing, ZHAO, Yinfeng, LI, Hua, ZHANG, Jinling
• Format: Patent
• Language: Chinese; English; French
• Published: 01.11.2018
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

Disclosed are a turbulent fluidized bed reactor, a device and a method for preparing p-xylene and co-producing low-carbon olefins from methanol and/or dimethyl ether and benzene, wherein same can solve or improve the problem of competition between an alkylation reaction and an MTO reaction in the process of preparing p-xylene and co-producing low-carbon olefins from methanol and/or dimethyl ether and benzene, and can achieve a synergistic effect between the MTO reaction and the alkylation reaction, so as to coordinate and optimize the competition between the alkylation and MTO reactions and make act synergistically by controlling the mass transfer and reactions, and to improve the conversion ratio of toluene, the yield of p-xylene and the selectivity of low-carbon olefins. The turbulent fluidized bed reactor contains a first reactor feeding distributor and a plurality of a second reactor feeding distributors, and the first reactor feeding distributor and the plurality of the second reactor feeding distributor