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

Hydrogenation catalyst preparation, hydrogenation catalyst and application

A hydrogenation catalyst, catalyst technology, applied in catalyst activation/preparation, hydrogenation to hydrocarbons, metal/metal oxide/metal hydroxide catalyst, etc. It is difficult to guarantee stability and other problems, and achieve the effect of low cost, guaranteeing selectivity and activity stability, and good industrial application prospects.

Active Publication Date: 2017-06-20
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF8 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no significant difference between this catalyst and the existing catalysts for the selective hydrogenation of acetylene to ethylene, such as Pd-Cr catalyst [us-A4577047], Pd-Ag [EP-A64301], Pd-Au [EP-A89252], and Au-Pd / SiO2, Ag-Pd / SiO2 [Applied Catalysis A: General 469 (2014) 419–426], etc., so it is difficult to guarantee that the catalyst can hydrogenate vinyl acetylene It has high selectivity, good stability, and other necessary properties, especially in raw materials rich in butadiene, butene and other unsaturated hydrocarbons, to achieve high-performance catalysis of vinyl acetylene convert
[0005] In summary, although there have been many researches and invention applications in this technical field, in terms of practical industrial applications, subject to the limitations of the catalyst's activity, selectivity, stability, etc., the hydrogenation of vinyl acetylene Most of the butadiene technology is still in the stage of small laboratory test or industrial pilot test

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
  • Hydrogenation catalyst preparation, hydrogenation catalyst and application
  • Hydrogenation catalyst preparation, hydrogenation catalyst and application
  • Hydrogenation catalyst preparation, hydrogenation catalyst and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Preparation of alumina carrier: Take 15g boehmite powder (Al2O3 dry basis content is 80%), disperse it in 150ml water, heat up to 80°C, add 2mol / L dilute HNO3 dropwise, adjust the pH value to 1.5-2.5, and carry out degumming , the boehmite sol was obtained after stirring for 6 hours. Then, after adding 2.4g of sucrose and stirring to dissolve, aged at room temperature for 6h, then transferred to an oven and dried at 90°C for 12 hours to obtain a solid sample labeled as S-Al2O3, and then transferred to a muffle furnace and slowly raised the temperature to 800°C under the protection of nitrogen. ℃ for 3 hours, and the heating rate is 0.5 ℃ / min to obtain the carbon-alumina composite carrier C-Al2O3. The C-Al2O3 sample obtained by roasting in nitrogen was cooled to below 200°C in a nitrogen atmosphere, then air was introduced, and then roasted again. The roasting temperature was 650°C, the roasting time was 2 hours, and the heating rate was 1°C / min. Thus, the required alum...

Embodiment 2

[0025] Preparation of alumina carrier: The experimental conditions are the same as in Example 1, except that sucrose is replaced by glucose, fructose, and soluble starch to obtain alumina carriers, which are respectively marked as Al2O3(g), Al2O3(f), and Al2O3(ss).

Embodiment 3

[0027] Preparation of alumina carrier: the experimental conditions are the same as in Example 1, except that the amount of sucrose added is 1.0g and 3.5g respectively, and the obtained alumina carrier is marked as Al2O3(s-2), Al2O3(s-3).

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

No PUM Login to View More

Abstract

The invention provides a hydrogenation catalyst preparation method and application of hydrogenation catalyst in selective hydrogenation reaction. Aluminum oxide is utilized as a carrier; the hydrogenation catalyst is prepared from boehmite; cane sugar, glucose and soluble starch are added into carrier precursor in a preparation process to serves as structural aids and are roasted in inert atmosphere and air sequentially, and roasting temperature is 450 to 1000 DEG C. Active ingredients of the catalyst are loaded by an impregnation method, and the active ingredients are chosen from alloy which is prepared from one or several of metal Ru, Pd and Pt and one or several of Cu, Ag and Au. The catalyst can be applied to olefin preparation by alkyne selective hydrogenation reaction.

Description

technical field [0001] The invention relates to the preparation of a hydrogenation catalyst and its application in the selective hydrogenation reaction of alkynes. Specifically, it is the synthesis of an alumina-supported alloy catalyst and its application in the selective hydrogenation of vinyl acetylene. Background technique [0002] Butadiene is an important petrochemical basic organic raw material and synthetic rubber monomer. It has a wide range of uses in synthetic rubber and organic synthesis. It is mainly used in the production of adiponitrile, 1,4-butanediol, butadiene rubber, Styrene butadiene rubber, etc. At present, there are two main sources of butadiene, one is obtained from the dehydrogenation of the C4 fraction of the refinery, and this method is currently used in a few countries and regions. The other is separated from the mixed C4 fraction produced by the ethylene cracking unit, which has better economic advantages and is currently the main production rou...

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
IPC IPC(8): B01J23/66B01J23/44B01J23/52B01J23/50B01J23/89B01J35/10B01J37/08C07C5/09C07C11/04C07C11/06C07C11/08C07C11/16
Inventor 郑明远张涛王爱琴王晓东
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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