ZSM-5 molecular sieve catalyst for catalytic preparation of xylene from coked benzene and methanol and use thereof
A ZSM-5, methanol preparation technology, applied in molecular sieve catalyst, physical/chemical process catalyst, organic chemistry and other directions, can solve the problems of low xylene selectivity, low economic benefit, low industrial production use, etc. The effect of high stability, high effective conversion rate and high selectivity
Active Publication Date: 2015-09-02
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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Abstract
The invention provides a ZSM-5 molecular sieve catalyst for catalytic preparation of xylene from coked benzene and methanol and a use thereof. A preparation method of the ZSM-5 molecular sieve catalyst comprises blending 45-90wt% of a hydrogen-type ZSM-5 molecular sieve, 10-50wt% of a binder, 1-20wt% of sesbania cannabina powder and a dilute nitric acid solution as an assistant by stirring to obtain a uniform mixture, drying and roasting the mixture, extruding the mixture to obtain a strip, immersing the strip in a solution containing one or two of Mg, Zn, Gd, P, La, Ce, Mo and Ni, and carrying out drying and roasting so that the strip is loaded with the metals. In catalytic alkylation reaction preparation of xylene from coked benzene and methanol, the ZSM-5 molecular sieve catalyst has high catalytic activity, high stability, a high raw material effective conversion rate and high desired product xylene selectivity, improves the existing xylene production technology, improves a coal-derived coked benzene utilization rate and realizes change of waster into valuables.
Application Domain
Molecular sieve catalystsHydrocarbon by hydrocarbon and non-hydrocarbon condensation +1
Technology Topic
CoalMethanol +10
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- Effect test(1)
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