AEI composite molecular sieve catalyst and preparation method and application thereof

A composite molecular sieve and catalyst technology, applied in molecular sieve catalysts, chemical instruments and methods, preparation of liquid hydrocarbon mixtures, etc.

Active Publication Date: 2019-05-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Up to now, the literature about AEI composite molecular sieve and its synthesis method has not been reported

Method used

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  • AEI composite molecular sieve catalyst and preparation method and application thereof
  • AEI composite molecular sieve catalyst and preparation method and application thereof
  • AEI composite molecular sieve catalyst and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Synthesis of AEI Composite Molecular Sieves

[0042] Take by weighing 3023.11g of aluminum nitrate [Al(NO 3 ) 3 9H 2 O, purity ≥98%wt., 8.05mol] was dissolved in 5536.36mL deionized water, and after stirring evenly, the solution was divided into two parts by mass, 25% and 75%, respectively, and recorded as solution C 1 and solution C 2 , 303.32g of phosphoric acid [H 3 PO 4 , 85%wt., 2.63mol], 1168.56g of tetraethylammonium hydroxide solution [TEAOH, 25%, 1.43mol] and 1245.24g of ethylenediamine [DEA, 20.72mol] into C 1 solution, after continuing to stir for 5h, solution C was obtained 1 '; 2071.36g of silica sol [SiO 2 , 60%wt, 20.71mol] and 155.16g of USY molecular sieves, 9.23g of Beta molecular sieves and 1008.94g of N,N-dimethyl-2-ethylpiperidinium bromide [DMEPBr, 3.66mol] and 263.36g of 1-Methyl-4-aminopiperidine [MAP, 2.24mol] into C 2 In the solution, after fully stirring, add 333.46g of sodium hydroxide [NaOH, 8.33mol] into the above solution to adjus...

Embodiment 2

[0044] Synthesis of AEI Composite Molecular Sieves

[0045] Weigh 1020.44g of aluminum isopropoxide [Al(Pr) 3 4H 2 O, purity≥98%wt., 4.99mol] was dissolved in 2143.25mL deionized water, and after stirring evenly, the solution was divided into two parts according to the mass parts, which were respectively 80% and 20%, which were recorded as solution C 1 and solution C 2 , 2111.66g of ammonium hydrogen phosphate [(NH 4 ) 2 HPO 4 , 15.99mol], and 1286.61g of tetraethylammonium bromide [TEABr, 6.12mol] and 661.56g of triethylamine [TEA, 6.54mol] into C 1 solution, continue to stir for 1.0h to obtain solution C 1 '; 61.36g of white carbon black [SiO 2 ,99wt.%, 1.02mol] and 32.26g of USY molecular sieves, 9.13g of MOR molecular sieves and 118.36g of 1-benzyl-4-hydroxypiperidine [BeOP, 0.72mol], 52.39g of N,N-dimethyl Base-2-ethylpiperidinium chloride [DMEPCl, 0.25mol] into C 2 In the solution, after fully stirring, add 109.23g of potassium hydroxide [KOH, 1.95mol] into the ...

Embodiment 3

[0047] Synthesis of AEI Composite Molecular Sieves

[0048] Weigh 10.55g of aluminum sulfate [Al 2 (SO 4 ) 3 18H 2 O, purity ≥ 98wt.%, 0.02mol] was dissolved in 22.09mL deionized water, and after stirring evenly, the solution was divided into two parts by mass, 50% and 50%, respectively, and recorded as solution C 1 and solution C 2 , 6.64g of phosphoric acid [H 3 PO 4 , 85%wt., 0.06mol], 3.38g of tetrabutylammonium hydroxide [TPAOH, 0.01mol] and 15.69g of tetraethylammonium hydroxide [TEAOH, 25%, 0.03mol] into C 1 solution, continue to stir for 2.5h to obtain solution C 1 ’; 10.18g of acidic silica sol [SiO 2 , 40wt.%, 0.07mol], 3.11g of USY molecular sieves and 6.15g of 2,2,4,6,6-pentamethyl-2-azabicyclo[3.2.1]octane [PMNO, 0.03mol ] and 2.23g of N,N-dimethyl-3,5-dimethylpiperidinium bromide [DMDMPBr, 0.01mol] into C 2In the solution, after fully stirring, add 1.31g of lithium hydroxide [LiOH, 0.10mol] into the above solution to adjust the pH value of the solution ...

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Abstract

The invention relates to an AEI composite molecular sieve catalyst and a preparation method and application thereof, and mainly solves the problems that the stability of the catalyst for preparing low-carbon olefins by using methanol in the prior art is not high, and the selectivity and yield of isobutene in the low-carbon olefins excluding ethylene and propylene are low. The AEI composite molecular sieve catalyst is characterized by comprising the following components in percentage by weight: a) 10-100% of an AEI composite molecular sieve; and b) 0-90% of a binder, the problems are well solved, and the AEI composite molecular sieve catalyst can be applied to methanol-to-hydrocarbon industrial production.

Description

technical field [0001] The invention relates to an AEI composite molecular sieve catalyst, a preparation method and application thereof. Background technique [0002] Due to the wide range of internal pore size distribution and the rich diversity of topological structures, zeolite molecular sieve materials are widely used in the fields of adsorption, heterogeneous catalysis, carriers of various guest molecules, and ion exchange. They are mainly characterized by selective adsorption, and their unique pore system enables them to sieve molecules of different sizes, which is why this type of material is called "molecular sieve". According to the definition of the International Union of Pure and Applied Chemistry (IUPAC), porous materials can be divided into the following three categories according to their pore diameters: materials with a pore diameter less than 2 nm are microporous materials; materials with a pore diameter between 2 and 50 nm Materials are mesopore materials; ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/70B01J29/83C07C1/04C07C11/04C07C11/06C07C11/08C10G2/00
CPCY02P20/52
Inventor 乔健刘松霖张铁柱滕加伟
Owner CHINA PETROLEUM & CHEM CORP
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