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Supported Co-MoS2/LDHS hydro-refining catalyst and application thereof

A hydrogenation refining and catalyst technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of short service life of catalysts, increase of catalyst consumption, reduction of catalysts, etc., to achieve optimal hydrogenation process, increased hydrogenation activity, and good catalytic activity

Inactive Publication Date: 2017-01-04
朱晨迪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the heavy oil hydrotreating process, due to the high viscosity and high impurity content of the heavy oil, the space velocity of the heavy oil hydrotreating process is very small, so the amount of catalyst is greatly increased compared with other refining processes, and the heavy oil hydrotreating catalyst uses Short life and poor reproducibility, so it is particularly important to reduce the cost of the catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Preparation of nano-molybdenum disulfide: Add ammonium tetrathiomolybdate and 1-methyl-3-carboxyethylimidazolium tetrafluoroborate at a concentration of 0.05mol / l to the solvent ethylene glycol and stir evenly, then Add an appropriate amount of reducing agent hydrazine hydrate, stir evenly, configure the initial reaction mixture and transfer it to a high-pressure synthesis kettle; the molar ratio of ionic liquid to Mo is 1:1;

[0021] (2) MoS 2 Loading hydrotalcite-like: ZnCl 2 , FeCl 3 and FeCl 2 Dissolve them in water respectively, configure as a solution with a concentration of 1mol / L, mix the three solutions, and keep Zn 2+ : Fe 2+ : Fe 3+ The molar ratio is 2:1:1, drop a certain amount of sodium hydroxide solution in a constant temperature 80°C water bath, adjust the system pH=8-11, react for 2 hours, and age for 12 hours. In the process, a layered structure is formed. Hydrotalcite-like precipitation, precipitation separation, washing with deionized water...

Embodiment 2

[0024] (1) Preparation of nanomolybdenum disulfide: Add ammonium tetrathiomolybdate and 1-ethyl-3-methylimidazolium tetrafluoroborate to ethylene glycol and stir evenly, then add appropriate amount of sodium borohydride, stir Uniform, configured as an initial reaction mixture and transferred to a high-pressure synthesis kettle; the molar concentration of ammonium tetrathiomolybdate is 0.8mol / l;

[0025] (2) MoS 2 Loaded hydrotalcite-like LDHS: ZnCl 2 , FeCl 3 and FeCl 2 Dissolve them in water respectively, and prepare a solution with a concentration of 2mol / L. Mix the three solutions to keep Zn 2+ : Fe 2+ : Fe 3+ The molar ratio is 3:2:1, drop a certain amount of ammonia solution in a constant temperature 80°C water bath, adjust the system pH=8-10, react for 2 hours, and age for 12 hours. During this process, a layered structure of water-like Talc precipitation, precipitation separation, washing with deionized water 3 times, calcining at 500°C for 2 hours; 2 Add deioniz...

Embodiment 3

[0028] (1) Preparation of nano-molybdenum disulfide: Add ammonium tetrathiomolybdate and 1-ethyl-3-methylimidazolium tetrafluoroborate to diethylene ether and stir evenly, then add appropriate amount of sodium borohydride, stir Uniform, configured as an initial reaction mixture and transferred to a high-pressure synthesis kettle; the molar concentration of ammonium tetrathiomolybdate was 0.8 mol / l.

[0029] (2) MoS 2 Loaded hydrotalcite-like LDHS: ZnCl 2 , FeCl 3 and FeCl 2 Dissolve them in water respectively, and prepare a solution with a concentration of 2mol / L. Mix the three solutions to keep Zn 2+ : Fe 2+ : Fe 3+ The molar ratio is 3:2:1, drop a certain amount of ammonia solution in a constant temperature 80°C water bath, adjust the system pH = 8-10, react for 2, h, and age for 12 h. During this process, a layered structure is formed. Hydrotalcite-like precipitation, precipitation separation, washing with deionized water for 3 times, and calcining at 500°C for 2 hour...

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PUM

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Abstract

The invention relates to the field of hydro-refining catalysts, in particular to a supported Co-MoS2 / LDHS hydro-refining catalyst prepared by ionic liquid. A compound material has the structures and the performance advantages of cobalt-molybdenum disulfide and hydrotalcite; in a synthetic system, the vulcanization processes of a vulcanizing agent and a molybdate precursor are eliminated, and the dispersing property of molybdenum disulfide is directly improved from raw material control together with solvent effect; the catalyst has good heat resistance, compression resistance and thermal stability.

Description

technical field [0001] The invention relates to the field of hydrofining, in particular to a supported Co-MoS prepared by using ionic liquid 2 / LDHS hydrorefining catalyst and its application. Background technique [0002] Heavy oil (such as atmospheric residue of crude oil, vacuum residue of crude oil, heavy crude oil, oil sands, synthetic heavy oil products, etc.) contains a large amount of heavy metals (such as nickel, vanadium), sulfur, nitrogen and other impurities, and The content of colloids and asphaltenes is relatively high. In order to meet the requirements of catalytic cracking feed and protect downstream catalysts, these impurities must be removed as much as possible, and hydrotreating is the most suitable process for removing the above impurities. Heavy oil hydrotreating catalysts generally include protective agents, demetallization catalysts, desulfurization catalysts, conversion catalysts, etc. according to their functions. The main function of the conversio...

Claims

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Application Information

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IPC IPC(8): B01J27/051C10G45/08
CPCC10G45/08B01J27/0515B01J35/40B01J35/617B01J35/615
Inventor 朱晨迪
Owner 朱晨迪
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