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Catalyst for the production of ethylbenzene from benzene and ethane

A catalyst, ethylbenzene technology, applied in molecular sieve catalysts, physical/chemical process catalysts, organic chemistry, etc., can solve the problems of low conversion rate of benzene and ethane

Active Publication Date: 2019-04-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the technical problems to be solved by the present invention is the problem that the conversion rate of benzene and ethane is low in the reaction of benzene and ethane to produce ethylbenzene with molecular sieve loaded Pt catalyst, and a new method for the production of ethylbenzene from benzene and ethane is provided. The catalyst has the advantages of high conversion rate of benzene and ethane

Method used

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  • Catalyst for the production of ethylbenzene from benzene and ethane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 1. Catalyst preparation

[0046] Weigh chloroplatinic acid containing 0.5g Pt (molecular formula is H 2 PtCl 6 ·6H 2 O), zinc nitrate equivalent to 0.7g ZnO (molecular formula is Zn(NO 3 ) 2 ·6H 2 O) and equivalent to 0.4g CeO 2 Cerium nitrate (molecular formula is Ce(NO 3 ) 3 ·6H 2O) Add it into 100mL deionized water, stir to make it all dissolve, and form a mixed solution; weigh 98.4g of hydrogen-type ZSM-5 molecular sieve (Si / Al molar ratio is 46), then add it to the above mixed solution, and soak for 3h , Dry at 100°C for 12h, and bake at 500°C for 2h.

[0047] The above product was tabletted and pulverized to 20-40 meshes, and a hydrogen-nitrogen mixed gas with a hydrogen volume content of 5% was used as a reducing agent, the reduction temperature was 350°C, and the reduction time was 1 hour to obtain a catalyst. The catalytic composition is shown in Table 1.

[0048] 2. Catalyst evaluation

[0049] The reaction of benzene and ethane to ethylbenzene is c...

Embodiment 2

[0051] 1. Catalyst preparation

[0052] Weigh chloroplatinic acid containing 0.5g Pt (molecular formula is H 2 PtCl 6 ·6H 2 O), zinc nitrate equivalent to 0.4g ZnO (molecular formula is Zn(NO 3 ) 2 ·6H 2 O) and equivalent to 0.7g CeO 2 Cerium nitrate (molecular formula is Ce(NO 3 ) 3 ·6H 2 O) Add it into 100mL deionized water, stir to make it all dissolve, and form a mixed solution; weigh 98.4g of hydrogen-type ZSM-5 molecular sieve (Si / Al molar ratio is 46), then add it to the above mixed solution, and soak for 3h , Dry at 100°C for 12h, and bake at 500°C for 2h.

[0053] The above product was tabletted and pulverized to 20-40 meshes, and a hydrogen-nitrogen mixed gas with a hydrogen volume content of 5% was used as a reducing agent, the reduction temperature was 350°C, and the reduction time was 1 hour to obtain a catalyst. The catalytic composition is shown in Table 1.

[0054] 2. Catalyst evaluation

[0055] The same method as in Example 1 was used to evaluate t...

Embodiment 3

[0057] 1. Catalyst preparation

[0058] Weigh chloroplatinic acid containing 0.5g Pt (molecular formula is H 2 PtCl 6 ·6H 2 O), zinc nitrate equivalent to 0.7g ZnO (molecular formula is Zn(NO 3 ) 2 ·6H 2 O) and equivalent to 0.4g La 2 o 3 Lanthanum nitrate (molecular formula La(NO 3 ) 3 ·6H 2 O) Add it into 100mL deionized water, stir to make it all dissolve, and form a mixed solution; weigh 98.4g of hydrogen-type ZSM-5 molecular sieve (Si / Al molar ratio is 46), then add it to the above mixed solution, and soak for 3h , Dry at 100°C for 12h, and bake at 500°C for 2h.

[0059] The above product was tabletted and pulverized to 20-40 meshes, and a hydrogen-nitrogen mixed gas with a hydrogen volume content of 5% was used as a reducing agent, the reduction temperature was 350°C, and the reduction time was 1 hour to obtain a catalyst. The catalytic composition is shown in Table 1.

[0060] 2. Catalyst evaluation

[0061] The same method as in Example 1 was used to evalua...

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Abstract

The invention relates to a catalyst for producing ethylbenzene from benzene and ethane. The catalyst mainly solves the problem that a Pt-loaded molecular sieve catalyst used in a reaction for producing ethylbenzene from benzene and ethane has a low conversion rate. The catalyst for producing ethylbenzene from benzene and ethane comprises the following components: (a) Pt or oxides thereof; (b) oxide of Zn; (c) simple substances or oxides of La elements; (d)molecular sieve. The technical scheme can better solve the technical problem, and is used in the reaction for producing ethylbenzene from benzene and ethane.

Description

technical field [0001] The invention relates to a catalyst for producing ethylbenzene from benzene and ethane. Background technique [0002] In today's world, the development of energy and resources is a common concern of the whole world and all mankind, and it is also an important issue of my country's social and economic development. Shale gas is an important unconventional natural gas resource that has emerged in recent years. Its development and utilization has become an important driving force for the strategic development of low-carbon economy and a catalyst for the structural adjustment of the world oil and gas geopolitical pattern. my country is rich in shale gas resources, and shale gas is associated with a large amount of ethane. Natural gas, oilfield gas and refinery gas also contain a large amount of low-carbon alkanes such as ethane, which are cheap. However, due to the very stable structure of the ethane molecule, it is difficult to be activated, and it is dif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/44C07C15/073C07C2/76
CPCY02P20/52
Inventor 杨为民范文青刘仲能王德举韩亚梅
Owner CHINA PETROLEUM & CHEM CORP
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