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

Hydrogenation tackifying nickel ionic liquid catalyst, and preparation method, application and application method thereof

The technology of an ionic liquid and an application method is applied in the field of hydrogenation and thickening nickel-based ionic liquid catalyst and preparation thereof, and achieves the effects of wide application prospect, mild reaction conditions and simple preparation method

Pending Publication Date: 2022-07-22
TAIYUAN UNIV OF TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no public reports on the application of transition metal-ILs composite nickel-based imidazole-based ionic liquid catalysts to the hydrogenation and viscosification of high-sulfur and low-viscosity coal.

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

[0032] The present invention also provides a method for preparing the catalyst, which comprises the following steps: after mixing the raw materials, heating, stirring and ultrasonication are performed in sequence to obtain the hydrogenated and thickened nickel-based ionic liquid catalyst.

[0033] In the present invention, the temperature of the heating and stirring is preferably 60 to 70°C, more preferably 62 to 68°C, and more preferably 64 to 66°C.

[0034] In the present invention, the rotational speed of the heating and stirring is preferably 50-100 rpm, more preferably 60-90 rpm, more preferably 70-80 rpm, and the heating and stirring time is preferably 2-5 min, more preferably 3-4 min, More preferably, it is 3.4 to 3.6 minutes.

[0035] In the present invention, after the heating and stirring is completed, the mixed solution exhibits yellow-green color.

[0036] In the present invention, the frequency of the ultrasonic is preferably 28-40KHz, more preferably 30-38KHz, m...

Embodiment 1

[0049] Take 2 parts of chloride, 50 parts of aromatic hydrocarbon solvent oil, and 20 parts of tetralin; the molar ratio of nickel chloride hexahydrate and 1-butyl-3-methylimidazole chloride in the chloride is 0.4.

[0050] The weighed raw materials were mixed, stirred at 50 rpm for 2 min at 60° C., and then ultrasonicated at a frequency of 28 KHz for 1 min to obtain a hydrogenated and thickened nickel-based ionic liquid catalyst.

[0051] The catalyst prepared in this example was mixed with high-sulfur and low-viscosity coal at a liquid-solid ratio of 0.70, then the pressure was lowered to 1MPa in a hydrogen atmosphere, and the temperature was raised from room temperature to 350°C at a heating rate of 5°C / min, and then reacted for 70min. , after the reaction is completed, it is naturally cooled to room temperature in a closed state, and then filtered to obtain a solid substance, and the solid substance is dried at 100 ° C for 10 hours to obtain a solid product.

[0052] The r...

Embodiment 2

[0054] Take 2.5 parts of chloride, 52 parts of aromatic hydrocarbon solvent oil and 22 parts of tetralin; the molar ratio of nickel chloride hexahydrate and 1-butyl-3-methylimidazole chloride in the chloride is 0.43.

[0055] The weighed raw materials were mixed, stirred at 63° C. at 80 rpm for 2.5 min, and then sonicated at a frequency of 28 KHz for 1.5 min to obtain a hydrogenated and thickened nickel-based ionic liquid catalyst.

[0056] The catalyst prepared in this example was mixed with high-sulfur and low-viscosity coal at a liquid-solid ratio of 0.80, then the pressure was lowered to 1.3 MPa in a hydrogen atmosphere, and the temperature was raised from room temperature to 365 °C at a heating rate of 5 °C / min, and then reacted. 65min, after the reaction was completed, it was naturally cooled to room temperature in a closed state, and then filtered to obtain a solid substance, and the solid substance was dried at 103° C. for 9.5h to obtain a solid product.

[0057] The r...

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 belongs to the technical field of coal. The invention provides a hydrogenation tackifying nickel ionic liquid catalyst which comprises 2-4 parts of chloride, 50-60 parts of aromatic hydrocarbon solvent oil and 20-30 parts of tetrahydronaphthalene, the chloride is used as a reactant to provide anions, the aromatic hydrocarbon mixed solvent oil is used as a solvent, compared with 100% tetrahydronaphthalene in a traditional solvent system, the price is lower, and the catalyst is easy to recover and can be recycled, so that the cost is low. And the cost is saved to a great extent. The invention also provides a preparation method of the catalyst, the preparation method of the catalyst is simple, the reaction condition for preparing the catalyst is mild, and the operation is simple and convenient. The invention further provides application and an application method of the catalyst, and the catalyst is stable in performance, non-volatile, high in hydrogenation activity, high in tackifying and desulfurizing efficiency, environment-friendly and pollution-free, suitable for large-scale production and wide in application prospect.

Description

technical field [0001] The invention relates to the technical field of coal, in particular to a hydrogenation and viscosity-increasing nickel-based ionic liquid catalyst and a preparation method, application and application method thereof. Background technique [0002] With the rapid development of the iron and steel industry, the demand for high-quality coke has gradually increased. T.A. Kuhalenko (The initial hydrogenation of bituminous coal is a method to understand and change the nature of bituminous coal, the chemistry and genesis of solid combustible minerals (translated by Zheng Zhiyong) [M]. Mild hydrogenation of highly metamorphic coal and low metamorphic coal at low temperature and low pressure can make its plasticity, tar yield, volatile matter, etc. tend to be fat coal with a moderate degree of metamorphism. It is of great significance to use hydrogenation to modify non-primary coking coal to alleviate the scarcity of coking coal resources. Wang Dongsheng et al...

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): B01J31/02B01J27/128C10L9/04C10L5/02
CPCB01J31/0284B01J27/128C10L9/04C10L5/02
Inventor 刘守军杨颂张智聪刘俊杰杜文广彭垠
Owner TAIYUAN UNIV OF TECH