Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of isomerization catalyst and its preparation method and application

A catalyst, isomerization dewaxing technology, applied in physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems of prolonging the process flow, increasing the difficulty of operation, increasing the investment cost, etc., to avoid deep reactions, The effect of reducing cracking reaction and improving isomerization selectivity

Active Publication Date: 2019-09-10
CHINA PETROLEUM & CHEM CORP +1
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But both processes have shortcomings. The former cannot effectively play the synergistic effect of the mixed molecular sieve components, and the latter prolongs the process, increases the difficulty of operation, and greatly increases the investment cost.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of isomerization catalyst and its preparation method and application
  • A kind of isomerization catalyst and its preparation method and application
  • A kind of isomerization catalyst and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 4.26g NaAlO 2 Mix evenly with 19.08g of sodium hydroxide solution in a 500ml stainless steel reaction kettle, add 33g of silica gel, 408.2g of deionized water, 18.96g of hexamethyleneimine (HMI) into the kettle in turn under stirring, and then add 1.65g CH 3 1, finally add 55g ZSM-23 again. After continuing to stir for 10 minutes, the reaction vessel was sealed and crystallized at 120° C. for 15 hours. After the crystallization was completed, a solid product (MCM-22 / ZSM-23) was isolated, numbered S-1, and the weight content of MCM-22 was 25%.

Embodiment 2

[0027] 1.488g NaAlO 2 Mix evenly with 36.06g sodium hydroxide solution in a 500ml stainless steel reaction kettle, mix 23g silica gel, 3.3gCHCl under stirring 3、 Add 359.3g of deionized water and 3.00g of HMI to the kettle in turn, and finally add 100g of ZSM-23. After continuing to stir for 10 minutes, the reaction vessel was sealed and crystallized at 130° C. for 20 h. After the crystallization was completed, a solid product (MCM-22 / ZSM-23) was isolated, numbered S-2, and the weight content of MCM-22 was 12%.

Embodiment 3

[0029] 1.136g NaAlO 2 Mix evenly with 24.04g of sodium hydroxide solution in a 500ml stainless steel reaction kettle, add 22g of silica gel, 237g of deionized water, 12g of HMI and 6g of cyclohexane into the kettle in sequence while stirring, and finally add 115g of ZSM-23. After continuing to stir for 10 minutes, the reaction vessel was sealed and crystallized at 120° C. for 15 hours. After the crystallization was completed, a solid product (MCM-22 / ZSM-23) was isolated, numbered S-3, and the weight content of MCM-22 was 8.0%.

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
Login to View More

Abstract

The invention discloses an isomerization catalyst and its preparation method and application. The catalyst contains MCM-22 / ZSM-23 composite molecular sieve, gallium oxide and Group VIII noble metal active components. Based on the weight content of the catalyst, MCM- The content of 22 / ZSM-23 composite molecular sieve is 10~90%, the content of calcium oxide is 0.1%~5.0%, and the content of Group VIII noble metal is 0.1%~1.5%. The MCM-22 / ZSM-23 composite molecular sieve is It means that MCM-22 molecular sieve is wrapped around ZSM-23 molecular sieve. The weight content of MCM-22 in MCM-22 / ZSM-23 composite molecular sieve is 1.0~50%. The catalyst can not only reduce the freezing point of waxy raw oil, but also improve the yield of liquid products. It is especially used in the isomerization dewaxing process of lubricating oil fractions and has the characteristics of high viscosity index of lubricating oil base oil.

Description

technical field [0001] The invention relates to an isomerization catalyst and its preparation method and application, in particular to a lubricating oil isomerization dewaxing catalyst and its preparation method and application. Background technique [0002] The isomerization reaction of n-alkanes is an important reaction in petroleum processing, such as the isomerization dewaxing process of lubricating oil and the isomerization pour point depressing process of diesel oil. N-paraffins are undesirable components in lube oil fractions, resulting in high pour points and poor low temperature performance. To improve these properties, it is necessary to remove all or part of the high melting point n-alkanes. At present, the commonly used dewaxing methods mainly include solvent dewaxing, catalytic dewaxing and isomeric dewaxing. [0003] Solvent dewaxing is to use the solubility of wax in solvent to remove it. The disadvantage of this method is that it is difficult to choose solv...

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 Patents(China)
IPC IPC(8): B01J29/80B01J35/10C10G45/64
CPCC10G45/64B01J29/7476B01J29/7492B01J29/80C10G2300/201B01J35/615B01J35/633
Inventor 徐会青刘全杰贾立明王伟
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com