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Dual-functional hydrogenation catalyst

A dual-function catalyst, catalyst technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., to achieve good hydrogenation activity, prolong service life, and activity stability improved effect

Inactive Publication Date: 2010-06-09
SHANDONG QILU KELI CHEMICAL RESEARCH INSTITUTE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Neither of the above two catalysts is suitable for refinery gas hydrogenation purification processes such as coking dry gas and catalytic dry gas with high olefin content

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh 56 kg of alumina glue, 26 kg of metatitanic acid, and 2.8 kg of hydroxycellulose powder, mix the above materials thoroughly, and grind them to more than 200 mesh, add appropriate amount of water, and roll them into Φ3-5 The pellets were put into a drying oven at 120° C. for drying after standing for a period of time, and then calcined at 560° C. for 3 hours to obtain a catalyst carrier. Prepare mixed solution, the Ni atomic concentration is 0.45mol / L, the Co atomic concentration is 0.5mol / L, the Mo atomic concentration is 2.8mol / L, the Cu atomic concentration is 0.02mol / L, and the La atomic concentration is 0.15mol / L. Immerse in the mixed solution, take it out after 1.5 hours, drain the surface solution, dry at 120°C, and then bake at 500°C for 3 hours.

[0023] The catalyst prepared in this way is designated Catalyst 1.

Embodiment 2

[0025] Weigh 38 kg of pseudoboehmite, 18 kg of metatitanic acid, and 2.1 kg of hydroxycellulose powder, mix the above-mentioned substances thoroughly, and grind them to more than 200 mesh, add appropriate amount of water, and extrude them into Φ3 The clover strips were put into a drying oven at 120° C. for drying after standing for a period of time, and then calcined at 560° C. for 3 hours to obtain a catalyst carrier. Prepare a mixed solution, the atomic concentration of Ni is 0.5mol / L, the atomic concentration of Co is 0.7mol / L, the atomic concentration of Mo is 2.8mol / L, and the atomic concentration of Cu is 0.06mol / L, and the carrier is immersed in the mixed solution for 1.5 hours Take it out, drain the surface solution, dry at 120°C, and then bake at 550°C for 3 hours.

[0026] The catalyst prepared in this way is designated Catalyst 2.

Embodiment 3

[0028]Weigh 38 kg of alumina glue, 18 kg of metatitanic acid, and 2.1 kg of hydroxycellulose powder, mix the above materials thoroughly, and grind them to more than 200 mesh, add appropriate amount of water, and roll them into Φ3-5 The pellets were placed in a drying oven at 120° C. for drying after standing for a period of time, and then calcined at 650° C. for 3 hours to obtain a catalyst carrier. Prepare Co-Mo mixed solution and Ni-La mixed solution respectively, Ni atomic concentration is 0.51mol / L, La atomic concentration is 0.09mol / L, Co atomic concentration is 0.63mol / L, Mo atomic concentration is 2.8mol / L, Immerse the carrier in the Co-Mo mixed solution first, take it out after 1.5 hours, drain the surface solution, dry it at 120°C, then bake it at 550°C for 3 hours, and then immerse it in the Ni-La mixed solution, 1.5 Take it out after 1 hour, drain the surface solution, dry at 120°C, and then bake at 500°C for 3 hours.

[0029] The catalyst prepared in this way is d...

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PUM

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Abstract

The invention relates to a dual-functional hydrogenation catalyst, which comprises a carrier and an active component. The dual-functional hydrogenation catalyst is characterized in that alumina is used as the carrier, the carrier also comprises a titanium component which accounts for 2 to 55 percent of the total weight of the catalyst based on the mass of TiO2, and the alumina accounts for 20 to 85 percent of the mass of the catalyst; the active component is molybdenum or a mixed component of molybdenum and cobalt, the cobalt accounts for 0 to 7.5 percent of the total weight of the catalyst, and the molybdenum accounts for 5.0 to 18 percent of the total weight of the catalyst; and one or more of nickel, copper and rare-earth compound serving as co-catalyst components is / are added into the catalyst, wherein the nickel accounts for 0.5 to 7.5 percent of the total weight of the catalyst, the copper accounts for 0.05 to 1.0 percent of the total weight of the catalyst, and the rare-earth compound accounts for 0.5 to 5.0 percent of the total weight of the catalyst. The prepared catalyst applied in a hydrogenation refining process for high-olefin raw materials such as coking dry gas or catalytic dry gas and the like has good organic sulfur hydrogenolysis and olefin saturation performance.

Description

technical field [0001] The invention relates to a bifunctional hydrogenation catalyst and a preparation method thereof. Specifically, the present invention relates to a bifunctional catalyst capable of simultaneously performing unsaturated hydrocarbon hydrogenation reaction and organic sulfhydryl hydrogenolysis reaction and its preparation method. Background technique [0002] With the technological development of petroleum refining, petrochemical and fine chemical industries, especially the production of clean fuels, the demand for hydrogen has increased rapidly, which has greatly promoted the development of hydrogen production technology from hydrocarbon raw materials. The raw material used in the early hydrocarbon conversion hydrogen production is light naphtha. With the continuous progress and development of technology, the raw material for hydrogen production is becoming lighter and lighter. Refinery coking dry gas, catalytic dry gas, hydrogenation tail gas, etc. Becom...

Claims

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Application Information

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IPC IPC(8): B01J23/885B01J23/883B01J23/882B01J21/06C10G70/02
Inventor 李世勤高步良程玉春
Owner SHANDONG QILU KELI CHEMICAL RESEARCH INSTITUTE CO LTD
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