Presulfided sulfur-tolerant shift catalyst and preparation method

A technology of sulfur-resistant transformation and catalyst, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, etc., which can solve the temporary or permanent loss of catalyst activity and incomplete catalyst vulcanization , Catalyst bed overheating and other problems, to achieve the effect of good conversion activity and stability, good economic benefits and application prospects, and easy transportation and storage

Active Publication Date: 2016-01-13
CHINA PETROLEUM & CHEM CORP
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Problems solved by technology

At present, most domestic sulfur-tolerant shift catalysts adopt in-vehicle pre-sulfurization treatment. This technology has obvious disadvantages: (a) it is easy to cause catalyst bed overheating, resulting in temporary or permanent loss of catalyst activity; (b) it is easy to cause incomplete catalyst vulcanization , affecting its activity
However, the protective film formed by this m

Method used

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  • Presulfided sulfur-tolerant shift catalyst and preparation method
  • Presulfided sulfur-tolerant shift catalyst and preparation method
  • Presulfided sulfur-tolerant shift catalyst and preparation method

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Embodiment 1-7

[0054] Catalysts C1-C7 are prepared by kneading method, active components, carrier materials, pore-forming agent and binder are mixed, shaped, dried, roasted, pre-sulfurized, and passivated to obtain finished catalysts.

[0055] Cobalt-containing compounds, with Co 8 o 9 In terms of molybdenum-containing compounds, as MoS 2 in terms of; magnesium-containing compounds, in terms of MgO; aluminum-containing compounds, in terms of Al 2 o 3 In terms of; titanium-containing compounds, as TiO 2 High carbon molecular compounds, in terms of C, the specific composition is shown in Table 1.

[0056] Concrete preparation steps are as follows:

[0057] (1) Preparation of active component solution:

[0058] Dissolve ammonium molybdate with deionized water to obtain solution A; dissolve cobalt nitrate with deionized water, then add binder into it, stir and dissolve to obtain solution B.

[0059] (2) Catalyst molding:

[0060] Mix the magnesium-containing powdery solid compound, alumi...

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Abstract

The invention relates to a presulfided sulfur-tolerant shift catalyst and a preparation method, belonging to the technical field of presulfurization treatment of sulfur-tolerant shift catalysts. The presulfided sulfur-tolerant shift catalyst prepared by using the method in the invention comprises an active component which is a binary component of a cobalt-contained compound and a molybdenum-contained compound, and carrier raw materials which are a magnesium-contained powdery compound, an aluminum-contained powdery compound, a titanium-contained powdery compound, and an external surface wrappage material composed of a macromolecular compound. The preparation method for the presulfided sulfur-tolerant shift catalyst provided by the invention comprises the following steps: preparation of an active component solution, molding of the catalyst, drying, roasting, presulfurization treatment, and aftertreatment of the catalyst. The presulfided sulfur-tolerant shift catalyst prepared by using the method in the invention is easy to activate when in use, has short activation time and high shift activity, and is convenient for transportation and storage; and the preparation method for the presulfided sulfur-tolerant shift catalyst provided by the invention is simple in process and facilitates realization of industrialization.

Description

technical field [0001] The invention relates to a presulfurized sulfur-resistant shift catalyst and a preparation method thereof, belonging to the technical field of presulfurization treatment of sulfur-tolerant shift catalysts. Background technique [0002] Cobalt-molybdenum-based sulfur-tolerant shift catalysts are mainly used to meet the needs of producing raw material gas from heavy raw materials such as residual oil, heavy oil, petroleum coke, and coal. They must be sulfurized when used to convert the active components in the oxidized state into sulfurized state, in order to have transformation activity. At present, most domestic sulfur-tolerant shift catalysts adopt in-vehicle presulfidation treatment. This technology has obvious disadvantages: (a) it is easy to cause catalyst bed overheating, resulting in temporary or permanent loss of catalyst activity; (b) it is easy to cause incomplete catalyst vulcanization , affecting its activity. The external pre-vulcanizatio...

Claims

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Application Information

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IPC IPC(8): B01J31/06
Inventor 白志敏齐焕东余汉涛赵庆鲁王昊田兆明姜建波薛红霞陈依屏
Owner CHINA PETROLEUM & CHEM CORP
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