Steeping solution and method for preparing catalyst by adopting steeping solution

The technology of impregnation liquid and compound is applied in the field of preparing impregnation liquid for hydrogenation catalyst, which can solve the problems of insufficient hydrogenation catalytic activity and the like, and achieve the effect of improving hydrogenation activity and hydrogenation catalytic activity.

Active Publication Date: 2012-04-04
CHINA PETROLEUM & CHEM CORP +1
View PDF4 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is found in the application that the aromatic hydrocarbon hydrogenation performance of this type of catalyst, especia

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

preparation example Construction

[0014] According to the method for preparing a hydrogenation catalyst provided by the present invention, the amount of the impregnating liquid is preferably used to impregnate 900-3300 grams of the carrier per liter of the impregnating liquid, and more preferably satisfies the impregnation of 1000-1400 grams of the carrier per liter of the impregnating liquid.

[0015] The carrier is selected from various carriers suitable for preparing hydrogenation catalysts. For example, the support may be shaped or unshaped alumina, silica gel, silica-alumina, molecular sieves, and mixtures thereof.

[0016] According to the preparation method of the hydrogenation catalyst provided by the present invention, wherein the drying method and conditions are conventional methods and conditions, preferably, the drying conditions include drying at 50-200°C for 1-48 hours .

Embodiment 1

[0020] (1) Dipping solution and its preparation

[0021] With 117.6 grams of basic nickel carbonate (purchased from Jiangsu Yixing Shensheng Catalyst Co., Ltd., NiO content is 51% by weight) and 150 grams of citric acid (purchased from Tianjin Yuanli Chemical Co., Ltd., analytically pure) and 40g nitric acid ( Beijing Chemical Plant, analytically pure) were mixed, 600ml of water was added thereto, the temperature was raised to 95°C with stirring, and the temperature was maintained at this temperature for 1 hour, thereby preparing an aqueous solution of nickel citrate. Then, 756 grams of ammonium metatungstate (purchased from Sichuan Zigong Cemented Carbide Factory Company, tungsten oxide content is 82% by weight) was added in the described nickel citrate aqueous solution, and then added 4 grams of glycerol (Beijing chemical plant, analytically pure) and the volume was adjusted to 1000ml with water, thereby preparing the impregnating solution A1 of the hydrogenation catalyst. ...

Embodiment 2

[0027] (1) Dipping solution and its preparation

[0028] With 117.6 grams of basic nickel carbonate (purchased from Jiangsu Yixing Shensheng Catalyst Co., Ltd., NiO content is 51% by weight) and 150 grams of citric acid (purchased from Tianjin Yuanli Chemical Co., Ltd., analytically pure) and 5g sulfuric acid ( Beijing Chemical Plant, analytically pure) were mixed, 600ml of water was added thereto, the temperature was raised to 95°C with stirring, and the temperature was maintained at this temperature for 1 hour, thereby preparing an aqueous solution of nickel citrate. Then, 756 grams of ammonium metatungstate (purchased from Sichuan Zigong Cemented Carbide Factory Company, tungsten oxide content is 82% by weight) was added in the described nickel citrate aqueous solution, and then added 99 grams of ethanol (Beijing Chemical Plant , analytically pure), and the volume was adjusted to 1000ml with water, thereby preparing the impregnating solution A2 of the hydrogenation catalyst...

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 a steeping solution and a method for preparing a catalyst by adopting the steeping solution. The steeping solution contains a compound containing VIB family metals, an organic acid salt containing VIII family metals, inorganic acid and an organic additive, wherein the concentration of the organic additive in the steeping solution is 1-150 g/L; and counted by the compound, the concentration of the compound containing VIB family metals is 100-1,100 g/L, the concentration of the organic acid salt containing VIII family metals is 10-800 g/L, and the concentration of the inorganic acid is 1-100 g/L. When the steeping solution provided by the invention is used for preparing a hydrogenation catalyst, the performance of the hydrogenation catalyst is improved, and the hydrogenation catalytic activity of heavy aromatic hydrocarbon is remarkably raised particularly.

Description

technical field [0001] The invention relates to an impregnating liquid and a method for preparing a catalyst by using the impregnating liquid, in particular to an impregnating liquid for preparing a hydrogenation catalyst and a method for preparing a catalyst by using the impregnating liquid. Background technique [0002] Hydrogenation catalyst is a kind of catalyst widely used in petroleum refining process. It has high hydrogenation activity during use. This high hydrogenation activity is generally derived from metal groups with VIB and VIII groups in the periodic table of elements. point. In order to further improve the hydrogenation activity of the catalyst, the goal is generally achieved by improving the preparation method of the catalyst. For example, by adding an organic complex, the dispersion of Group VIII metals on the surface of the support is improved, thereby increasing the hydrogenation activity. [0003] For example, CN 1175481A discloses a co-impregnation so...

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): B01J37/02B01J23/888B01J29/16C10G47/20
Inventor 毛以朝李明丰辛靖聂红董建伟
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap