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Organic sulphur hydrogenation catalyst and preparation method thereof

A hydrogenation catalyst and organic sulfur technology, applied in the field of desulfurization, can solve problems such as poor catalytic performance, achieve good mechanical properties, reduce dosage, and improve synergistic effects.

Active Publication Date: 2015-05-13
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the problem of poor catalytic performance of organic sulfur hydrogenation catalysts in the prior art because the adsorption sites inside the carrier are not released, and further provides an organic sulfur hydrogenation catalyst with a special pore structure that can load a large amount of active components. sulfur hydrogenation catalyst

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  • Organic sulphur hydrogenation catalyst and preparation method thereof

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Effect test

Embodiment 1

[0034] The organosulfur hydrogenation catalyst described in this embodiment is prepared from the following raw materials:

[0035] 80 parts by weight of carrier, 5 parts by weight of iron nitrate, 1 part by weight of ammonium molybdate, and 4 parts by weight of cobalt nitrate.

[0036] In this embodiment, the preparation method of the carrier is:

[0037] (1) Mixing the alumina powder with a mass ratio of 1:1 and the activated carbon powder with a particle diameter of 0.3mm, adding the scallop powder aqueous solution with a 5wt% safflower powder content, to make balls with a diameter of 4mm;

[0038] (2) Mix alumina powder with a mass ratio of 2:1:0.05, activated carbon powder and titanium dioxide powder with a particle size of 90 μm to obtain a mixture, put the balls into rolling equipment, and use the content of the scallop powder After wetting the surface of the ball nut with a 5 wt% aqueous solution of celadon powder, then alternately adding the mixture and the aqueous so...

Embodiment 2

[0043] The organosulfur hydrogenation catalyst described in this embodiment is at least prepared from the following raw materials:

[0044] 100 parts by weight of carrier, 15 parts by weight of ammonium metatungstate, 15 parts by weight of cobalt nitrate, 20 parts by weight of nickel chloride, and 5 parts by weight of zinc nitrate.

[0045] In this embodiment, the preparation method of the carrier is:

[0046] (1) Mixing the alumina powder with a mass ratio of 3:1 and the activated carbon powder with a particle size of 0.65mm, adding a kaolin aqueous solution with a kaolin content of 1wt%, to make a ball with a diameter of 3mm;

[0047] (2) Mix alumina powder with a mass ratio of 1:1:0.075, activated carbon powder with a particle size of 100 μm, and zirconium chloride powder to obtain a mixture, put the balls into rolling equipment, and use the kaolin content After wetting the surface of the ball nut with a 1 wt% kaolin aqueous solution, the mixture and the kaolin aqueous sol...

Embodiment 3

[0052] The organosulfur hydrogenation catalyst described in this embodiment is prepared from the following raw materials:

[0053] 90 parts by weight of the carrier, 15 parts by weight of copper nitrate, 15 parts by weight of zinc nitrate, and 2.5 parts by weight of nickel nitrate.

[0054] In this embodiment, the preparation method of the carrier is:

[0055] (1) Mix the alumina powder with a mass ratio of 2:1 and the activated carbon powder with a particle diameter of 1mm, add attapulgite aqueous solution with attapulgite content of 3wt%, and make a ball nut with a diameter of 5mm;

[0056] (2) Alumina powder with a mass ratio of 3:1:0.1, activated carbon powder and cerium nitrate powder with a particle size of 80 μm are mixed uniformly to obtain a mixture, and the ball nuts are put into rolling equipment, and the attapulgite is used to After the attapulgite aqueous solution with a content of 3wt% wets the surface of the ball nut, the mixture and the attapulgite aqueous sol...

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Abstract

The invention provides an organic sulfur hydrogenation catalyst and a preparation method thereof. The catalyst adopts a special aperture passage structure that activated carbon with large particle diameter is arranged inside a carrier, activated carbon with small particle diameter is arranged on the surface of the carrier, after roasting, a plurality of slight aperture passages can be formed on the surface of the carrier, aperture passages with larger apertures are formed inside the carrier, the slight apertures on the surface of the carrier and the apertures with larger apertures are communicated with one another, the special aperture passage structure facilitates the load of active components, and the conversion rate of the catalyst provided by the invention to the carboxide sulfur can reach 99.8 percent. Moreover, during the preparation process of the carrier, a metal additive is added, the control of the aperture passage structure and the pore size distribution of the carrier is facilitated, the synergistic effect of all active components is improved, further the dispersibility of the active component is increased, and the catalytic activity of the catalyst is improved.

Description

technical field [0001] The invention relates to a catalyst and a preparation method thereof, in particular to a catalyst suitable for the hydrogenation conversion of organic sulfur, especially carbonyl sulfide, and a preparation method thereof, belonging to the technical field of desulfurization. technical background [0002] Sulfides are widely present in chemical raw materials produced from coal, petroleum, natural gas and other raw materials. They will not only corrode metal pipes and equipment, but also cause poisoning of downstream catalysts, thereby affecting the normal progress of subsequent catalytic reactions, and the emission of sulfur-containing tail gas It will also cause environmental pollution, trigger public unrest and social unrest. Therefore, the desulfurization and purification treatment of sulfur-containing gas has become a necessary key technology in the clean conversion and utilization of coal or the low-carbon utilization of fossil raw materials. In th...

Claims

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Application Information

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IPC IPC(8): B01J23/882B01J23/888B01J23/80
Inventor 赵文涛刘彦芳马芳王立贤白洪斌
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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