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

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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

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  • Organic sulphur hydrogenation catalyst and preparation method thereof

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Example Embodiment

[0033] Example 1

[0034] The organic sulfur 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) Alumina powder with a mass ratio of 1:1 and activated carbon powder with a particle size of 0.3mm are uniformly mixed, and a sesame powder aqueous solution with a sesame powder content of 5wt% is added to make a ball with a diameter of 4mm;

[0038] (2) Mix the alumina powder with a mass ratio of 2:1:0.05, activated carbon powder with a particle size of 90 μm, and titanium dioxide powder to obtain a mixture. Put the ball into a rolling device and use the content of the sesbania powder After a 5wt% aqueous solution of sesame powder wets the surface of the ball, the mixture and the aqueous solution of the sesame...

Example Embodiment

[0042] Example 2

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

[0044] 100 parts by weight of the 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) Mix the alumina powder with a mass ratio of 3:1 and activated carbon powder with a particle size of 0.65mm uniformly, and add a kaolin aqueous solution with a kaolin content of 1wt% to make a ball with a diameter of 3mm;

[0047] (2) 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 are uniformly mixed to obtain a mixture, and the ball is placed in a rolling device, and the kaolin content is used After wetting the surface of the ball with a 1 wt% kaolin aqueous solution, the mixt...

Example Embodiment

[0051] Example 3

[0052] The organic sulfur 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 size of 1mm uniformly, and add an attapulgite aqueous solution with an attapulgite content of 3wt% to make a ball with a diameter of 5mm;

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

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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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