Method for preparing loaded solid super acidic catalyst directly by microwave method

A solid super acid, catalyst technology, applied in chemical instruments and methods, catalyst activation/preparation, physical/chemical process catalysts, etc., can solve the problems of complex preparation, long time, poor thermal stability, etc. Improved selectivity, stable effective components, and good thermal stability

Active Publication Date: 2012-08-01
CHINA UNIV OF MINING & TECH
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a method for directly preparing a loaded solid superacid catalyst by a microwave method, which solves the problem of complex preparation of the current superacid catalyst, long time, easy loss of active components of the catalyst, poor thermal stability, and especially no significant aromatic Catalytic hydrogenation of ring bridge bond, the problem of low catalytic efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: the preparation method of supported solid superacid catalyst, operating conditions and performance index and catalytic effect of catalyst:

[0024] 1. Preparation of catalyst:

[0025] (1) NaHCO with a weight of 1g and a weight concentration of 1% 3 Fully mix and stir with carbon nanotubes with a weight of 500g, and place the mixed material in a microwave reactor with a power of 300W, keep the temperature heated by microwave radiation in a nitrogen stream, and obtain a loaded Na after static roasting at 220°C for 10 minutes. Catalyst carrier.

[0026] (2) Place 100g of the above-mentioned prepared loaded Na catalyst carrier in a flask in a microwave reactor. Under 100W power microwave irradiation, the temperature heated by microwave radiation in a nitrogen stream is at 50°C, and poured dropwise into the flask Add a total weight of 200g and a volume ratio of 1:2 SbCl 5 and F 3 CSO 3 Si (CH 3 ) 3 The solution is mixed, the system is fully stirr...

Embodiment 2

[0032] Embodiment 2: the preparation method of supported solid superacid catalyst, operating conditions and performance index and catalytic effect of catalyst:

[0033] 1. Preparation of catalyst:

[0034] (1) NaHCO with a weight of 1g and a weight concentration of 8‰ 3 Fully mix and stir with carbon nanotubes with a weight of 500g, and place the mixed material in a microwave reactor with a power of 300W, keep the temperature heated by microwave radiation in a nitrogen stream, and obtain a loaded Na after static roasting at 200°C for 20 minutes. Catalyst carrier.

[0035] (2) Place 200g of the above-mentioned loaded Na catalyst carrier in the flask in the microwave reactor. Under 100W power microwave irradiation, the temperature heated by microwave radiation in nitrogen flow is under the condition of 30 ° C, dropwise into the flask Add a total weight of 500g and a volume ratio of 1:4 SbCl 5 and F 3 CSO 3 Si (CH 3 ) 3 The solution is mixed, the system is fully sti...

Embodiment 3

[0041] Embodiment 3: the preparation method of supported solid superacid catalyst, operating conditions and performance index and catalytic effect of catalyst:

[0042] 1. Preparation of catalyst:

[0043] (1) NaHCO with a weight of 1g and a weight concentration of 4‰ 3 Fully mix and stir with carbon nanotubes with a weight of 500g, and place the mixed material in a microwave reactor with a power of 300W, keep the temperature heated by microwave radiation in a nitrogen stream, and obtain a loaded Na after static roasting at 200°C for 20 minutes. Catalyst carrier.

[0044] (2) Place 150g of the above-mentioned prepared loaded Na catalyst carrier in the flask in the microwave reactor. Under 120W power microwave irradiation, the temperature heated by microwave radiation in a nitrogen stream is at 40 ° C. Drop by drop into the flask Add a total weight of 600g and a volume ratio of 1:1 SbCl 5 and F 3 CSO 3 Si (CH 3 ) 3 The solution is mixed, the system is fully stirre...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
pore sizeaaaaaaaaaa
Login to view more

Abstract

The invention relates to a method for preparing a loaded solid super acidic catalyst directly by a microwave method, and belongs to a method for preparing a super acidic catalyst. The method comprises the following steps of: (1) mixing and stirring NaHCO3 and a carbon nano tube in a weight ratio of 1:500 fully, and roasting in a microwave reactor to obtain a Na-loaded catalyst carrier; (2) heating the Na-loaded catalyst carrier by microwave radiation, adding a mixed solution of antimony pentachloride (SbCl5) and trimethylsilyl trifluoromethanesulfonate (F3CSO3Si(CH3)3) dropwise, stirring and immersing to obtain a suspension mixed solution; (3) filtering the suspension mixed solution to obtain a solid precursor and a mixed solution; (4) putting the solid precursor into the microwave reactor, heating by the microwave radiation, and roasting to obtain a solid super acidic catalyst prototype; and (5) performing operation for 1 to 5 times by taking the solid super acidic catalyst prototype as a raw material according to the steps (2), (3) and (4) to obtain the solid-loaded super acidic catalyst. The method has the advantages that: the loaded solid super acidic catalyst prepared by the microwave method is high in catalytic hydrocracking activity and selectivity.

Description

Technical field [0001] The present invention involves a method of preparation of a super -strong acid catalyst, especially a method of directly preparing a load solid super -strong acid catalyst. Background technique [0002] The acid catalytic reaction involves the process of refining the hydrocarbon cracking, rectification, heterogeneous and other oil refining processes, and also involves many units of petrochemical and fine chemicals such as olefin hydride, olefin polymerization, aromatic hydrocarbon alkyl, aromatics, alcoholized, etc.The response process can be said to be the basis of a series of important industries. [0003] At present, the solid super -strong acid catalysts mainly include the following categories, which are the unit reactions of heterogeneous reactions, alkylated reactions, esterization reactions, aluminization reactions, hypollar reactions, replacement reactions, aldehydes, and ketones.Directly prepare super -strong acid catalysts. [0004] (1) SBF 5 , TA...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/26B01J37/34C07C4/24C07C4/00C07C15/24C10G1/06
Inventor 魏贤勇宗志敏岳晓明王英华樊星赵云鹏孙兵卿宇王玉高李鹏陈博刘畅黄莉丽周俊路遥
Owner CHINA UNIV OF MINING & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap