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Y/ZSM-22/SAPO-34/ASA/MOF composite material and preparation method thereof

A SAPO-34, composite material technology, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of increased cost of synthetic composite molecular sieves, long synthesis process time, and increased auxiliary equipment, etc. To achieve the effect of increasing the active specific surface area, increasing the active surface area, and improving the reactivity

Active Publication Date: 2017-12-29
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the preparation time is longer
[0013] The preparation methods of micro-mesoporous composite materials mentioned in the above documents or patents are either complicated in process or take a long time in the synthesis process
CN102000604A introduces a microwave treatment process in the process of synthesizing Y / MCM-41 composite molecular sieve, increases auxiliary equipment, and greatly increases the cost of synthesizing composite molecular sieve
In addition, the mesoporous silicon-aluminum materials in the micro-mesoporous composite materials mentioned in the above documents or patents are irregular pores

Method used

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  • Y/ZSM-22/SAPO-34/ASA/MOF composite material and preparation method thereof
  • Y/ZSM-22/SAPO-34/ASA/MOF composite material and preparation method thereof
  • Y/ZSM-22/SAPO-34/ASA/MOF composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Synthesis of Y / ZSM-22 / SAPO-34 / ASA Composite

[0058] (1) Preparation of guiding agent: Take 24.7g of sodium hydroxide (Beijing Chemical Plant, analytically pure) and add it to 45.9g of water, stir until the sodium hydroxide is completely dissolved, then add 6.5g of sodium metaaluminate (researched by Shandong Aluminum Industry Co., Ltd. Institute, Industrial Products, Al 2 o 3 content 49.1wt%), stirred until the sodium metaaluminate was completely dissolved to obtain sodium metaaluminate solution A. With 70g solution A and 75g water glass (Beijing Red Star Soda Soda Factory, SiO 2 Content 27.81wt%, Na 2O content 8.74wt%) was poured into 65.5g of deionized water successively, stirred evenly, and aged at 30° C. for 22 hours to obtain the directing agent. The molar ratio of each component of the directing agent is: 16Na 2 O: Al 2 o 3 :16SiO2 2 :330H 2 O.

[0059] (2) Preparation of ZSM-22 and SAPO-34 molecular sieve slurry: according to ZSM-22 molecular sieve: SA...

Embodiment 2

[0063] Unless otherwise specified, the sources of each raw material are the same as in Example 1.

[0064] (1) Preparation of guiding agent: Take 17.5g of sodium hydroxide and add it to 45.9g of water, stir until the sodium hydroxide is completely dissolved, then add 6.5g of sodium metaaluminate, and stir until the sodium metaaluminate is completely dissolved to obtain metaaluminate Sodium solution A. Pour 70g of solution A and 100g of water glass into 85.5g of deionized water in sequence, stir evenly, and then statically age at 30°C for 22 hours to obtain the directing agent. The molar ratio of each component of the directing agent is: 10Na 2 O: Al 2 o 3 :16SiO2 2 :440H 2 O.

[0065] (2) Preparation of ZSM-22 and SAPO-34 molecular sieve slurry: according to ZSM-22 molecular sieve: SAPO-34 molecular sieve: aqueous solution ratio of 1:1:5, 5g of ZSM-22 molecular sieve and 5g of SAPO-34 molecular sieve were dispersed in In 25 g of an aqueous solution of 1 wt % KOH and 5 w...

Embodiment 3

[0069] Unless otherwise specified, the sources of each raw material are the same as in Example 1.

[0070] (1) Preparation of guiding agent: Take 24.7g of sodium hydroxide and add it to 45.9g of water, stir until the sodium hydroxide is completely dissolved, then add 8.5g of sodium metaaluminate, and stir until the sodium metaaluminate is completely dissolved to obtain metaaluminate Sodium solution A. Pour 70g of solution A and 70g of water glass into 85.5g of deionized water in sequence, stir evenly, and then statically age at 30°C for 22 hours to obtain the directing agent. The molar ratio of each component of the directing agent is: 16Na 2 O: Al 2 o 3 :16SiO2 2 :330H 2 O.

[0071] (2) ZSM-22 and SAPO-34 molecular sieve slurry preparation: According to ZSM-22 molecular sieve: SAPO-34 molecular sieve: aqueous solution ratio is 1:1:5, the ZSM-22 molecular sieve of 10g and the SAPO-34 molecular sieve of 10g are dispersed in 50 g of an aqueous solution of 5 wt % KOH and 1...

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Abstract

The invention provides a Y / ZSM-22 / SAPO-34 / ASA / MOF composite material and a preparation method thereof. The method comprises the following steps: preparing a ZSM-22 / SAPO-34 molecular sieve slurry, and synthesizing a Y / ZSM-22 / SAPO-34 composite molecular sieve by adopting a hydrothermal crystallization method; adding a surfactant and an alkaline aluminum source into the slurry containing he molecular sieve, and adjusting the pH value to obtain a solid product; washing, drying and roasting the product to obtain a Y / ZSM-22 / SAPO-34 / ASA composite material, uniformly mixing and stirring with a metal salt aqueous solution, and drying to obtain a metal-loaded Y / ZSM-22 / SAPO-34 / ASA composite material; adding alcohol and amide organic solvent into carboxyl-containing organic acid, and uniformly mixing to obtain organic mixture; and adding the metal-loaded Y / ZSM-22 / SAPO-34 / ASA material into the organic mixture, uniformly stirring, and reacting to obtain the product.

Description

technical field [0001] The present invention provides a kind of Y / ZSM-22 / SAPO-34 / ASA / MOF composite material and preparation method thereof, specifically, is a kind of by Y molecular sieve, ZSM-22, SAPO-34 molecular sieve and amorphous silicon aluminum ( ASA) is a composite material formed by in-situ coating, and a MOF (metal-organic framework) metal-organic framework porous material is synthesized on the surface of the composite material to form a Y / ZSM-22 / SAPO-34 / ASA / MOF composite material. Background technique [0002] Molecular sieve-based composites refer to composite materials that combine molecular sieves and other substances through the interaction between molecules, atoms or ions. Regular materials with mesoporous structures such as MCM-41 mesoporous molecular sieves are suitable for the transformation of organic macromolecules due to their large pore structure, but their poor thermal stability, hydrothermal stability and weak acidity limit their Applications of thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/85B01J29/80
CPCB01J29/80B01J29/85B01J2229/16B01J35/617B01J35/635B01J35/633B01J35/647
Inventor 李海岩秦丽红孙发民张志华于春梅谢方明王亮王甫村张文成郭金涛董春明张全国孙生波吕倩孟锐靳丽丽倪术荣王燕杨晓东于秀娟关旭李圣平张云桐吴显军张国甲
Owner PETROCHINA CO LTD
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