Catalyst for converting methyl isobutyl ketone into 2-methylpentane and preparation method of catalyst

A technology of methyl isobutyl ketone and methyl pentane, which is applied in the field of chemical catalysts and its preparation, and can solve problems such as high energy consumption and easy deactivation of catalysts

Active Publication Date: 2014-09-10
海宁市袁花镇工业投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved in the present invention is: MIBK catalyzed hydrodeoxygenation synthesis MP reaction has high energy consumption, and the catalyst is easily deactivated, and a kind of activity is provided to be used for methyl isobutyl ketone to be converted into 2-methylpentane Alkane catalyst and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Weigh 2.68g of 2-sulfonic acid terephthalic acid monosodium salt and 3.73g of nonahydrated aluminum nitrate, and dissolve them in a polytetrafluoroethylene reactor with 50mL of water (nonahydrated aluminum nitrate: 2-sulfonic acid p Monosodium phthalic acid: deionized water = 1:1:300), stirring for 30min;

[0022] (2) Weigh 0.56 g of sodium fluoride and add it into the reaction kettle (sodium fluoride: aluminum nitrate = 2: 1.5), stir for 30 min, and crystallize at 220° C. for 8 h. After cooling to room temperature, the resulting mixture was washed with ethanol and deionized water, suction filtered, and dried;

[0023] (3) Take 1 g of the resulting solid and put it into 20 mL with a concentration of 0.5 mol L -1 In the hydrochloric acid solution, stir 12h;

[0024] (4) Wash with deionized water and ethanol, filter with suction, and dry the solid at 150°C for 16 hours to obtain SO 3 H-MIL-101(Al);

[0025] (5) Take SO 3 Put 0.5g of H-MIL-101(Al) sample in a beak...

Embodiment 2

[0029] (1) Weigh 4.02g of 2-sulfonic acid terephthalic acid monosodium salt and 3.73g of aluminum nitrate nonahydrate, and dissolve them in a polytetrafluoroethylene reactor with 50mL of water (aluminum nitrate nonahydrate: 2-sulfonic acid p Monosodium phthalic acid: deionized water = 1:1.5:300), stirring for 30min;

[0030] (2) Weigh 0.42g of sodium fluoride and add it into the reaction kettle (sodium fluoride: aluminum nitrate = 1:1), stir for 30 minutes, and crystallize at 180°C for 24 hours. After cooling to room temperature, the resulting mixture was washed with ethanol and deionized water, suction filtered, and dried;

[0031] (3) Take 1 g of the resulting solid and put it into 30 mL with a concentration of 0.2 mol L -1 In the hydrochloric acid solution, stir 12h;

[0032] (4) Wash with deionized water and ethanol, filter with suction, and dry the solid at 150°C for 16 hours to obtain SO 3 H-MIL-101(Al);

[0033] (5) Take SO 3 Put 0.5g of H-MIL-101(Al) sample in a b...

Embodiment 3

[0037] (1) Weigh 5.36g of 2-sulfonic acid terephthalic acid monosodium salt and 3.73g of aluminum nitrate nonahydrate, and dissolve them in a polytetrafluoroethylene reactor with 50mL of water (aluminum nitrate nonahydrate: 2-sulfonic acid p Monosodium phthalic acid: deionized water = 1:2:300), stirring for 30min;

[0038] (2) Weigh 0.28g of sodium fluoride and add it into the reaction kettle (sodium fluoride: aluminum nitrate = 1:1.5), stir for 30 minutes, and crystallize at 150°C for 36 hours. After cooling to room temperature, the resulting mixture was washed with ethanol and deionized water, suction filtered, and dried;

[0039] (3) Take 1g of the resulting solid and put it into 40mL with a concentration of 0.1mol L -1 In the hydrochloric acid solution, stir 12h;

[0040] (4) Wash with deionized water and ethanol, filter with suction, and dry the solid at 150°C for 16 hours to obtain SO 3 H-MIL-101(Al);

[0041] (5) Take SO 3 Put 0.5g of H-MIL-101(Al) sample in a beak...

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Abstract

The invention relates to a catalyst for converting methyl isobutyl ketone into 2-methylpentane and a preparation method of the catalyst. The catalyst is prepared from two parts, namely a sulfonic-acid-functional metal organic framework material MIL-101 (Al) and precious metal Pt, wherein the weight of the metal Pt is 0.5-5 weight percent in total weight percentage of the catalyst. The preparation method comprises the following steps: adding sodium fluoride into mixed liquor of aluminum nitrate nonahydrate, 2-sulfonic acid terephthalic acid monosodium salt and deionized water; after crystallization, using a hydrochloric acid solution for ion exchange; washing and drying to obtain the sulfonic-acid-functional metal organic framework material MIL-101 (Al); then dropwise adding a K2PtC16 solution to obtain a catalyst precursor, and reducing the catalyst precursor through hydrogen to obtain the catalyst. The catalyst has high catalytic activity and high alkane selectivity when being used for converting methyl isobutyl ketone into 2-methylpentane.

Description

technical field [0001] The invention relates to a chemical catalyst and a preparation method thereof, in particular to a catalyst for converting methyl isobutyl ketone into 2-methylpentane and a preparation method thereof. Background technique [0002] The continuous reduction of fossil energy and the aggravation of environmental problems force people to find sustainable ways to promote the development of human society. The production of petroleum-based chemicals from renewable resources, especially biomass resources, is an important approach to sustainable development and has attracted extensive attention from academia and industry. As a bulk chemical, butanol is not only an important raw material for the production of many compounds, but also a potential power fuel. Compared with fuel ethanol, butanol has higher energy density, stronger hydrophobicity, and is non-corrosive, which can prolong the service life of transportation pipelines and can be used directly without mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22C07C9/16C07C1/207
Inventor 张富民金岩钟依均朱伟东
Owner 海宁市袁花镇工业投资有限公司
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