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

Low-capacity and high-dispersibility type desulfurization adsorbent for benzol refining and preparation method thereof

It is an adsorbent and highly dispersed technology, which is applied in the direction of adsorption purification/separation, chemical instruments and methods, and other chemical processes. The effect of knot growth, prolonging service life and high desulfurization performance

Active Publication Date: 2017-08-04
贵研工业催化剂(云南)有限公司
View PDF11 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the metal particles of ruthenium-based adsorbents prepared by existing methods tend to coalesce and grow up during use, so they are easy to deactivate and use a large amount, which is not conducive to stable production

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
  • Low-capacity and high-dispersibility type desulfurization adsorbent for benzol refining and preparation method thereof
  • Low-capacity and high-dispersibility type desulfurization adsorbent for benzol refining and preparation method thereof
  • Low-capacity and high-dispersibility type desulfurization adsorbent for benzol refining and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In the first step, first introduce 50 mL of the prepared 0.15 mol / L ruthenium acetate solution into the reaction tank with stirring, and at the same time add 15 mL of 0.04 mol / L cetyltrimethylammonium bromide, stir for 15 minutes, and then add The reducing agent n-butanol was 100mL, and the mixed solution was added into the autoclave, and treated at 180°C for 12 hours to obtain metal Ru colloid;

[0025] In the second step, mix 1.87g of ethyl silicate and 285mL of 0.1mol / L sodium acetate solution, then add 200g of alumina carrier into the mixed solution under stirring condition, continue stirring at 70°C for 60min, and extract Filter and wash the resulting solid and dry it at 100°C for 12 hours;

[0026] In the third step, by the self-assembly method, the samples obtained in the first and second steps were stirred in 0.01% urea solution for 12 hours, the temperature was 80°C, the nitrogen pressure was 0.05MPa, and the stirring speed was 100r / min, so that the metal Ru s...

Embodiment 2

[0029] In the first step, first introduce 50 mL of the prepared 0.15 mol / L ruthenium nitrate solution into the reaction tank with stirring, and at the same time add 15 mL of 0.04 mol / L cetyltrimethylammonium bromide, stir for 15 min, and then add The reducing agent n-butanol was 100mL, and the mixed solution was added into the autoclave, and treated at 180°C for 12 hours to obtain metal Ru colloid;

[0030] In the second step, mix 1.87g of ethyl silicate and 285mL of 0.1mol / L sodium acetate solution, then add 200g of alumina carrier into the mixed solution under stirring condition, continue stirring at 70°C for 60min, and extract Filter and wash the resulting solid and dry it at 100°C for 12 hours;

[0031] In the third step, by the self-assembly method, the samples obtained in the first and second steps were stirred in 0.01% urea solution for 12 hours, the temperature was 80°C, the nitrogen pressure was 0.05MPa, and the stirring speed was 100r / min, so that the metal Ru stabl...

Embodiment 3

[0034] In the first step, first introduce 50 mL of the prepared 0.15 mol / L ruthenium acetate solution into the reaction tank with stirring, and at the same time add 15 mL of 0.04 mol / L cetyltrimethylammonium bromide, stir for 15 minutes, and then add The reducing agent n-butanol is 75mL, and the mixed solution is added into the autoclave, and treated at 180°C for 12h to obtain metal Ru colloid;

[0035] In the second step, mix 1.87g of ethyl silicate and 285mL of 0.1mol / L sodium acetate solution, then add 200g of alumina carrier into the mixed solution under stirring condition, continue stirring at 70°C for 60min, and extract Filter and wash the resulting solid and dry it at 100°C for 12 hours;

[0036] In the third step, by the self-assembly method, the samples obtained in the first and second steps were stirred in 0.01% urea solution for 12 hours, the temperature was 80°C, the nitrogen pressure was 0.05MPa, and the stirring speed was 100r / min, so that the metal Ru stably an...

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
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses low-capacity and high-dispersibility type desulfurization adsorbent for benzol refining and preparation method thereof. The adsorbent mainly comprises active component metal Ru, aluminum oxide and orthosilicic acid polymer, wherein the metal RU is mainly dispersed on the outer surface of the aluminum oxide carrier modified by the orthosilicic acid polymer. The preparation method is outstandingly characterized in that the preparation method, using coprecipitation and impregnation, of traditional desulfurization adsorbent for benzol refining is broken through, the metal Ru is firmly assembled to the surface of the aluminum oxide carrier through the orthosilicic acid polymer, and the Ru is stably dispersed on the surface of the absorbent in a high-dispersibility manner. Compared with the prior art, the ruthenium-based absorbent is high in sulfur capacity, low in Ru content, high in stability, long in service life and promising in industrial application prospect.

Description

technical field [0001] The invention relates to an adsorbent, in particular to a ruthenium adsorbent for refining and desulfurizing benzene and a preparation method thereof. Background technique [0002] Benzene is an important chemical raw material with a wide range of industrial uses, mainly used in the production of dyes, medicines, disinfectants, explosives and artificial fibers. With the development of organic synthesis industry, benzene products, as one of the basic chemical raw materials, are becoming more and more important. One is the growing demand, and the other is the increasingly stringent quality requirements. At present, the main problem in this industry is how to effectively remove the organic sulfur components in benzene. Among them, adsorption desulfurization has the advantages of small investment, simple process, easy control of conditions, and high desulfurization precision. It is currently the main method for removing organic sulfur at home and abroad....

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): B01J20/08B01J20/30C07C7/12C07C15/04
CPCB01J20/0225B01J20/08C07C7/12C07C15/04
Inventor 安霓虹戴云生吴美岩唐春潘再富沈亚峰周伟恭恬洁
Owner 贵研工业催化剂(云南)有限公司
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