Modification method of ZSM-5 molecular sieve and ZSM-5 molecular sieve catalyst
The invention discloses a ZSM-5 molecular sieve modification method and a ZSM-5 molecular sieve catalyst, and belongs to the field of catalysts. The modification method of the ZSM-5 molecular sieve comprises the following steps: providing a ZSM-5 molecular sieve without a template agent; placing the...
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| creator | BAO XIAOJUN WANG TINGHAI ZHU HAIBO XIANG CHUN'E XIA SHAOQING LIU XIAOBU CHOI KYUNG-YEON SUN MAN BAI YU YUAN PEI YUE YUANYUAN BAI ZHENGSHUAI WANG GUOQI |
| description | The invention discloses a ZSM-5 molecular sieve modification method and a ZSM-5 molecular sieve catalyst, and belongs to the field of catalysts. The modification method of the ZSM-5 molecular sieve comprises the following steps: providing a ZSM-5 molecular sieve without a template agent; placing the ZSM-5 molecular sieve without removing the template agent in a supergravity impinging stream-rotating packed bed, heating to a reaction temperature, and adding an acid solution into the supergravity impinging stream-rotating packed bed through a liquid feeding pipe; and continuously adding deionized water into the supergravity impinging stream-rotating packed bed through the liquid feeding pipe, washing the ZSM-5 molecular sieve modified by the acid liquor, and then carrying out drying treatment to obtain the modified ZSM-5 molecular sieve. According to the method, the modified ZSM-5 molecular sieve with reasonable acid value distribution and a stepped pore channel structure can be obtained, and the method is simp |
| format | Patent |
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| 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 |
| title | Modification method of ZSM-5 molecular sieve and ZSM-5 molecular sieve catalyst |
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