Unlock instant, AI-driven research and patent intelligence for your innovation.

Eggshell nickel-based bifunctional hydrogenation catalyst and preparation method and application thereof

A hydrogenation catalyst and dual-function technology, which is applied in the field of eggshell type dual-function hydrogenation catalyst and its preparation, can solve the problems of affecting the catalytic performance of active components, deteriorated catalyst performance, low catalyst dispersion and the like, and achieves shortening the preparation time. The effect of cycle time, content reduction, energy consumption and gas pollutant emission reduction

Active Publication Date: 2011-11-23
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Catalysts prepared by the traditional impregnation method often have low dispersion and large nickel grains, which affect the full play of the catalytic performance of the active components
Using this method to prepare catalysts, the biggest problem is that the high temperature in the calcination process will lead to sintering of the active components, which will deteriorate the performance of the catalyst.

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
  • Eggshell nickel-based bifunctional hydrogenation catalyst and preparation method and application thereof
  • Eggshell nickel-based bifunctional hydrogenation catalyst and preparation method and application thereof
  • Eggshell nickel-based bifunctional hydrogenation catalyst and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Mix pseudo-boehmite powder with water and binder, knead and extrude, dry at 105°C for 10 hours, and then bake at 900°C to make a specific surface of 170m 2 / g, a spherical carrier with a pore volume of 0.8ml / g.

[0045] Nickel nitrate [Ni(NO 3 ) 2 ·6H 2 O], lanthanum nitrate [La(NO 3 ) 3 ·6H 2 O], potassium nitrate (KNO 3 ) was dissolved in water to make an aqueous solution, and then the pH value of the solution was adjusted to 10 with ammonia water, the above-mentioned alumina carrier was impregnated by an equal impregnation method, and dried at 80° C. for 2 hours to obtain a. Take 50ml of a mixed solution prepared by deionized water and isopropanol at a volume ratio of 1:1, pour it into a, disperse evenly, and pour out the excess solution. Use the product under vacuum 60 The Coγ radiation source was irradiated at a dose rate of 30Gy / min for 15h. The irradiated sample was dried at 120°C for 6 hours to obtain catalyst A, which contained 14wt% nickel, 0.5wt% lan...

Embodiment 2

[0047] Nickel nitrate [Ni(NO 3 ) 2 ·6H 2 O], magnesium nitrate [Mg(NO 3 ) 2 ·6H 2 O] was dissolved in water to make an aqueous solution, and potassium hydroxide (KOH) was used to adjust the pH of the solution to 10.8. The above-mentioned alumina carrier was impregnated by an equal impregnation method, and dried at 60°C for 4 hours to obtain b. Take 50ml of a mixed solution prepared by deionized water and isopropanol at a volume ratio of 1:1, pour it into b, disperse evenly, and pour out the excess solution. Use the product under vacuum 60 The Coγ radiation source was irradiated at a dose rate of 30Gy / min for 15h. The irradiated sample was dried at 120° C. for 6 h to prepare Catalyst B. b Contains 14 wt% nickel, 2.0 wt% magnesium and 1.7 wt% K based on catalyst weight (wt). Cutting the catalyst particle in half, it can be clearly seen that the supported components are distributed in the outer region of the catalyst particle.

Embodiment 3

[0049] Nickel nitrate [Ni(NO 3 ) 2 ·6H 2 O], lanthanum nitrate [La(NO 3 ) 3 ·6H 2 O], palladium nitrate Pd(NO 3 ) 2 , potassium nitrate (KNO 3 ) was dissolved in water to make an aqueous solution, and then the pH value of the solution was adjusted to 6 with ammonia water, and the above-mentioned alumina carrier was impregnated by an equal impregnation method, and the remaining steps were the same as in Example 1 to obtain catalyst C. Based on the catalyst weight (wt), it contains 14wt% nickel, 1.0wt% lanthanum, 0.8wt% potassium and 0.1wt% palladium. Cutting the catalyst particle in half, it can be clearly seen that the supported component is distributed in the outer region of the catalyst particle, and substantially no supported component exists in the spherical core region with a radius half the radius of the catalyst particle.

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 discloses an eggshell nickel-based bifunctional hydrogenation catalyst and a preparation method and application thereof, and belongs to the technical field of hydrogenation catalysts. In order to meet the requirement of developing an eggshell nickel-based catalyst at present, the invention provides a catalyst which comprises a carrier and a loaded ingredient loaded on the carrier, wherein the loaded ingredient comprises a nickel active ingredient, a first accelerator and a second accelerator; over 90 percent of active ingredient is distributed in an area between a half depth from the surface of the carrier to the center or a central shaft and the surface; and the preparation steps of the catalyst comprise ionization, irradiation and reduction. The invention also provides thepreparation method of the eggshell bifunctional hydrogenation catalyst. The catalyst is prepared by performing ionization, irradiation and reduction on a metal active ingredient precursor or oxide obtained by roasting the metal active ingredient precursor. In addition, the invention provides the specific application of the catalyst. The utilization rate of the main active ingredient nickel is improved, and hydrogenation activity and selectivity are obviously improved.

Description

technical field [0001] The present invention relates to an eggshell-type dual-functional hydrogenation catalyst and its preparation method and application, and more particularly relates to an eggshell-type nickel-based catalyst capable of simultaneously hydrogenating carbonyl and double bonds as well as its preparation method and application, especially The invention relates to an eggshell-type nickel-based catalyst for the hydrogenation of aldehydes to synthesize alcohols, a preparation method and application thereof. Background technique [0002] For the hydrogenation of bifunctional aldehydes, commercial catalysts usually use copper-based and nickel-based supported catalysts, where copper-based catalysts (such as CuO-ZnO, CuO-ZnO / Al 2 o 3 ) is applied to the gas-phase hydrogenation process of aldehydes. The sulfuric acid product produced by this process has high chroma, high boiling content in by-products, and low product purity. The nickel-based supported catalyst is u...

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): B01J23/83B01J23/78B01J23/89B01J23/889B01J35/10B01J37/34C07C29/17C07C29/141C07C31/125
Inventor 戴伟王秀玲田保亮王翀唐国旗
Owner CHINA PETROLEUM & CHEM CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com