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Tail gas hydrogenation catalyst and preparation method thereof

A hydrogenation treatment and catalyst technology, applied in the direction of physical/chemical process catalysts, gas treatment, chemical instruments and methods, etc., can solve the problems of difficult uniform distribution of active components and affect the overall performance of the catalyst, so as to improve performance uniformity, Improve catalytic activity, improve the effect of hydrolysis activity

Inactive Publication Date: 2018-09-04
江苏天东新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, in the existing methods for preparing tail gas hydrotreating catalysts, the active component is usually loaded on the carrier by placing the carrier in the active component impregnation solution, but under the influence of surface tension, the active component in the impregnation solution It is difficult to distribute evenly on the carrier, which affects the overall performance of the catalyst

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  • Tail gas hydrogenation catalyst and preparation method thereof
  • Tail gas hydrogenation catalyst and preparation method thereof

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Embodiment 1

[0032] The invention provides a tail gas hydrotreating catalyst, which is composed of the following components: 90 parts by weight of porous metal oxide with a particle diameter of 240 μm, 3 parts by weight of molybdenum oxide, 5 parts by weight of cobalt oxide, 0.7 parts by weight of lanthanum oxide, 0.6 parts by weight Parts of ruthenium oxide and 0.4 parts by weight of rhenium oxide, wherein the porous metal oxide is porous activated alumina particles loaded with titanium dioxide, and the porous metal oxide is composed of 80 parts by weight of activated alumina and 8 parts by weight of titanium dioxide, The particle size of activated alumina is 60μm, the particle size of titanium dioxide is 2μm, the particle size of molybdenum oxide is 10-50nm, the particle size of cobalt oxide is 20-80nm, the particle size of lanthanum oxide is 10-20nm, the particle size of ruthenium oxide is The particle size of rhenium oxide is 5-10nm, and the particle size of rhenium oxide is 1-5nm.

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Embodiment 2

[0047] The invention provides a tail gas hydrotreating catalyst, which is composed of the following components: 85 parts by weight of porous metal oxide with a particle diameter of 360 μm, 2 parts by weight of molybdenum oxide, 6 parts by weight of cobalt oxide, 1.2 parts by weight of lanthanum oxide, 0.8 parts by weight Parts of ruthenium oxide and 0.3 parts by weight of rhenium oxide, wherein the porous metal oxide is porous activated alumina particles loaded with titanium dioxide, and the porous metal oxide is composed of 90 parts by weight of activated alumina and 5 parts by weight of titanium dioxide, The particle size of activated alumina is 70μm, the particle size of titanium dioxide is 5μm, the particle size of molybdenum oxide is 10-20nm, the particle size of cobalt oxide is 60-80nm, the particle size of lanthanum oxide is 15-20nm, the particle size of ruthenium oxide is The particle size of rhenium oxide is 8-10nm, and the particle size of rhenium oxide is 1-3nm.

[...

Embodiment 3

[0062] The invention provides a tail gas hydrotreating catalyst, which is composed of the following components: 89 parts by weight of porous metal oxide with a particle diameter of 300 μm, 5 parts by weight of molybdenum oxide, 2 parts by weight of cobalt oxide, 1 part by weight of lanthanum oxide, 0.7 parts by weight Parts of ruthenium oxide and 0.2 parts by weight of rhenium oxide, wherein the porous metal oxide is porous activated alumina particles loaded with titanium dioxide, and the porous metal oxide is composed of 85 parts by weight of activated alumina and 10 parts by weight of titanium dioxide, The particle size of activated alumina is 50μm, the particle size of titanium dioxide is 8μm, the particle size of molybdenum oxide is 30-50nm, the particle size of cobalt oxide is 60-80nm, the particle size of lanthanum oxide is 10-15nm, the particle size of ruthenium oxide is The particle size of rhenium oxide is 5-8nm, and the particle size of rhenium oxide is 1-3nm.

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Abstract

The invention discloses a tail gas hydrogenation catalyst and a preparation method thereof. The tail gas hydrogenation catalyst is prepared from, by weight, 85-95 parts of porous metal oxide with theparticle size being 200-400 micrometers, 1-5 parts of molybdenum oxide, 2-7 parts of cobaltous oxide, 0.5-1.2 parts of lanthanum oxide, 0.6-0.8 part of ruthenium oxide and 0.2-0.4 part of rhenium oxide, and the porous metal oxide is porous active aluminium oxide particles loaded with titanium dioxide. According to the preparation method, the distribution uniformity of the active ingredients on a carrier can be improved, and meanwhile the mixing uniformity degree among the active ingredients can be improved; under the same dosage and same working condition, by means of the tail gas hydrogenation catalyst, the time needed for making the recovery rate of sulfur dioxide in tail gas meet the requirements is less.

Description

technical field [0001] The invention relates to the technical field of sulfur recovery, in particular to a tail gas hydrotreating catalyst and a preparation method thereof. Background technique [0002] With the increasingly stringent environmental regulations and the further enhancement of people's awareness of environmental protection, the requirements for the emission standards of sulfur compounds in petroleum processing and petrochemical plants are becoming more and more stringent. In order to meet the requirements of the new environmental protection standards, the total sulfur recovery rate of sulfur recovery units in refineries and natural gas purification plants must reach more than 99.70%. In order to meet the above-mentioned total sulfur recovery rate, most sulfur recovery units adopt the reduction absorption process. That is, after the sulfuric acid gas is converted by two-stage Claus, it enters the hydrogenation reactor. Under the action of the hydrogenation catal...

Claims

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Application Information

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IPC IPC(8): B01J23/89B01D53/86B01D53/48
CPCB01J23/8993B01D53/8603B01D2255/1026B01D2255/2063B01D2255/20707B01D2255/20746B01D2255/20769B01D2255/2092B01D2257/306
Inventor 丁晶晶陈立升陈井凤杜超张启发杜军丁静
Owner 江苏天东新材料科技有限公司