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Metal element-containing compound molecular sieve catalyst, and preparation method and application thereof

A composite molecular sieve and metal element technology, applied in molecular sieve catalysts, hydrocarbon production from oxygen-containing organic compounds, chemical instruments and methods, etc., can solve problems such as low yield and selectivity, complex pore structure distribution, and low stability. Achieve the effects of improving yield and selectivity, improving anti-carbon deposition ability, and good catalytic performance

Active Publication Date: 2014-10-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] One of the technical problems to be solved by the present invention is the low stability of methanol-to-olefins catalyst used in the prior art, low yield and selectivity of ethylene, propylene and butene in light olefins, and a new catalyst containing Composite molecular sieve catalyst of metal elements. The composite molecular sieve molecular sieve in the catalyst has complex pore structure distribution, high catalytic activity and good stability. It is applied to the yield and selection of ethylene, propylene and butene in the preparation of light olefins from methanol Advantages such as higher sex

Method used

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  • Metal element-containing compound molecular sieve catalyst, and preparation method and application thereof
  • Metal element-containing compound molecular sieve catalyst, and preparation method and application thereof
  • Metal element-containing compound molecular sieve catalyst, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Synthesis of Composite Molecular Sieves Containing Metal Elements

[0038] According to the formula 0.5Al: 1.4P: 0.5TEA: 30H 2 O: 0.15Zn Weigh the reaction raw materials.

[0039] First, fully stir 4.49 grams of aluminum sulfate, 2.42 grams of orthophosphoric acid, 0.61 grams of zinc nitrate and 7.73 milliliters of deionized water to form a uniform jelly, add 0.23 grams of triethylamine under stirring, and wait for the M-AlPO molecular sieve synthetic solution to mix After uniformity, according to liquid / solid = 0.25, put 140.40 grams of ZSM-5 molecular sieves (particle size 200 μm, silicon-aluminum ratio of 18) into the M-AlPO molecular sieve synthesis solution, and finally 150.65 milliliters of deionized water, fully stirred to form a crystallized mixture liquid. The crystallization mixed solution obtained above was crystallized at 130°C and 170°C for 5 hours and 7 days respectively, and the product was centrifuged to obtain a solid product, which was dried in a...

Embodiment 2

[0042] Synthesis of Composite Molecular Sieves Containing Metal Elements

[0043] According to the formula 2Al: 12.9P: 6.5TEA: 50H 2 O: 0.75Ga Weigh the reaction raw materials.

[0044] First, 7.50 grams of aluminum nitrate, 14.87 grams of orthophosphoric acid, 3.13 grams of gallium nitrate and 6.77 milliliters of deionized water were fully stirred and mixed to form a uniform jelly, and 6.58 grams of TEA was added under the stirring state, and after the M-AlPO molecular sieve synthetic solution was mixed evenly According to liquid / solid = 0.13, put 167.88 grams of ZSM-5 molecular sieve (particle size 20 μm, silicon-aluminum ratio 113) into the M-AlPO molecular sieve synthesis liquid, and finally 70.20 ml of deionized water, fully stirred to form a crystallization mixed liquid. The crystallization mixed solution obtained above was crystallized at 60°C and 180°C for 10 days and 5 days respectively, and the product was centrifuged to obtain a solid product, which was dried in an...

Embodiment 3

[0047] Synthesis of Composite Molecular Sieves Containing Metal Elements

[0048] According to the formula 0.1Al: 0.1P: 10.0DEA: 100H 2 O: 0.01Ag Weigh the reaction raw materials.

[0049] First, 2.62 grams of pseudo-boehmite, 0.23 grams of orthophosphoric acid, 0.03 grams of silver nitrate and 35.96 milliliters of deionized water were fully stirred and mixed evenly to form a uniform jelly, and 12.02 grams of TEA was added under the stirring state, and the M-AlPO molecular sieve was synthesized into a liquid After mixing evenly, put 457.74 grams of ZSM-5 molecular sieve (particle size 500 μm, silicon-aluminum ratio of 27) into the M-AlPO molecular sieve synthesis liquid according to liquid / solid = 1:9, and finally 549.29 milliliters of deionized water, fully stirred to form crystallization mixture. The crystallization mixed solution obtained above was crystallized at 80°C and 160°C for 7 days and 10 days respectively, and the product was centrifuged to obtain a solid product...

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Abstract

The invention relates to a metal element-containing compound molecular sieve catalyst, and a preparation method and an application thereof. The problems of low stability, and low selectivity and low yield of ethylene, propylene and isobutene in low carbon olefins of methanol-to-olefin catalysts in the prior art are solved. The metal element-containing compound molecular sieve catalyst comprises 10-90wt% of a metal element-containing compound molecular sieve and 10-90wt% of a binder. The metal element-containing compound molecular sieve catalyst well solves the problems, and can be used in the industrial production of methanol-to-olefin.

Description

technical field [0001] The invention relates to a composite molecular sieve catalyst containing metal elements, a preparation method and application thereof. Background technique [0002] Porous materials are a class of solid compounds with a regular pore structure. According to the definition of the International Union of Pure and Applied Chemistry (IUPAC), porous materials can be divided into three categories according to their pore diameters: materials with pore diameters less than 2 nm are microporous materials (micropore materials); materials with a pore size between 2 and 50 nm are mesopore materials; materials with a pore size larger than 50 nm are macropore materials, and zeolite molecular sieves are microporous materials. [0003] Zeolite molecular sieve microporous materials are widely used in the fields of adsorption, heterogeneous catalysis, carriers of various guest molecules, and ion exchange due to their wide range of internal pore size distribution and rich d...

Claims

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Application Information

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IPC IPC(8): B01J29/84C07C1/20C07C11/04C07C11/06C07C11/08
CPCY02P20/52Y02P30/20Y02P30/40
Inventor 乔健汪哲明张铁柱滕加伟杨为民
Owner CHINA PETROLEUM & CHEM CORP
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