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IN-SITU PREPARATION METHOD FOR CATALYST FOR PREPARING AT LEAST ONE OF TOLUENE, P-XYLENE AND LOW-CARBON OLEFIN, AND REACTION PROCESS
IN-SITU PREPARATION METHOD FOR CATALYST FOR PREPARING AT LEAST ONE OF TOLUENE, P-XYLENE AND LOW-CARBON OLEFIN, AND REACTION PROCESS
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机译:制备甲苯,对二甲苯和低碳烯烃中的至少一种的催化剂的原位制备方法和反应过程
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摘要
Disclosed is an in-situ preparation method for a catalyst for Reaction I: methanol and/or dimethyl ether with toluene are used to prepare a low-carbon olefin and co-produce p-xylene, and/or Reaction II: methanol and/or dimethyl ether with benzene are used to prepare at least one of toluene, p-xylene and a low-carbon olefin, comprising: contacting at least one of a phosphorus reagent, a silanizing reagent and water vapor with a molecular sieve in a reactor to prepare, in situ, the catalyst for the Reaction I and/or the Reaction II, wherein the reactor is a reactor of the Reaction I and/or the Reaction II. By directly preparing a catalyst in a reaction system, the entire chemical production process is simplified, the catalyst preparation and transfer steps are saved, and the operation thereof is easy. The catalyst prepared in situ can be directly used for in situ reactions.
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