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

Aromatic hydrocarbon hydrogenation catalyst and its preparation method

A technology for hydrogenation of aromatics and catalysts, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of low hydrogenation activity of aromatics and achieve high hydrogenation Effects of hydrogen reactivity, simplification of operation, and shortening of the production process

Inactive Publication Date: 2007-11-14
XIAMEN UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above two patented catalysts need to be sulfurized before use, and their aromatic hydrogenation activity is low

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

[0021] Weigh 84.75g of basic nickel carbonate powder, add 1.0mol L -1 36.0mL of boric acid solution, then add 1.0mol·L -1 64.0mL of ammonium metatungstate solution, and mix the above materials evenly. Dry the mixed material at 100°C for 5 hours, and then roast the material at 350°C for 5 hours. The calcined material is pressed into tablets to obtain the catalyst, which consists of (based on the weight of the catalyst): NiO=75.6%, B 2 o 3 = 1.9%, WO 3 = 22.5%. Catalyst A has an average pore diameter of 5.30nm and a pore volume of 0.278ml·g -1 , the specific surface area is 242m 2 g -1 . Its composition and properties are shown in Table 1.

[0022] The activity evaluation experiment of catalyst hydrogenation reaction adopts flow type differential reactor-gas chromatography device as the activity evaluation device. The reaction raw material is containing 120mg·L -1 Carbon disulfide in ethylbenzene liquid. The catalyst was first reduced at 400°C for 3 hours under a hyd...

Embodiment 2

[0027] The preparation steps are as in Example 1. Weigh 84.75 g of basic nickel carbonate and add 1.0 mol L -1 144.0mL of boric acid solution, then add 1.0mol·L -1 107.0mL of ammonium metatungstate solution, mixed evenly, dried at 100°C for 5h, and then roasted at 450°C for 3h. The catalyst was obtained by tablet molding, and its composition and properties are shown in Table 1.

[0028] The activity evaluation of the catalyst is the same as in Example 1, and the results are shown in Table 2.

Embodiment 3

[0030] The preparation steps are as in Example 1. Weigh 84.75 g of basic nickel carbonate and add 1.0 mol L -1 108.0mL of boric acid solution, and then add 27.90g of ammonium paratungstate powder, mix well and bake at 450°C for 5h. Tablet 1 obtained Catalyst C, its composition and properties.

[0031] The activity evaluation of the catalyst is the same as in Example 1, and the results are shown in Table 2.

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
pore sizeaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

One kind of arene hydrogenating catalyst with high hydrogenating activity and high sulfur poisoning resistance and its simple preparation process are provided. The arene hydrogenating catalyst consists of nickel oxide, boron oxide and tungsten oxide. Its preparation process includes weighing nickel carbonate or basic nickel carbonate powder, adding boric acid solution of 1.0 mol / L concentration, adding tungstic acid, ammonium paratungstate or ammonium metatungstate solution, mixing, stoving, roasting, and tabletting. The preparation process is short and simple, and the catalyst has pore volume greater than 0.18 cu cm / g, specific surface area greater than 180 sq m / g, high arene hydrogenation activity, and high sulfur poisoning resistance.

Description

technical field [0001] The invention relates to an aromatic hydrocarbon hydrogenation catalyst and a preparation method thereof. Background technique [0002] Aromatics hydrogenation technology plays a very important role in petrochemical industry. The high aromatics content in oil brings many problems, for example, the increase of aromatics content in diesel will increase the particulate emissions in diesel combustion exhaust gas and aggravate environmental pollution. Since oil contains a certain amount of sulfide, it is unavoidable to be affected by sulfur poisoning in the hydrogenation process. At present, the common problem of high sulfide and aromatic content in fuel oil in my country needs to be solved urgently. Therefore, the research and development of sulfur-resistant and highly active aromatic hydrogenation catalysts is one of the hot issues in the field of catalysis. [0003] The core of aromatics hydrogenation technology is the catalyst. Aromatic hydrocarbon ...

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): B01J23/888B01J21/02C07C13/18
Inventor 方维平盛景云张国玉王跃敏
Owner XIAMEN UNIV
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