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A kind of titanium dioxide-based sulfur recovery catalyst and its preparation method

A technology for recovery of titanium dioxide and sulfur, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, preparation/purification of sulfur, etc., can solve problems such as long reaction time, high cost, and reduced activity , to achieve the effect of good anti-oxidation ability, low cost and short contact reaction time

Active Publication Date: 2021-07-09
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

At present, the active alumina catalyst commonly used in industry has good initial activity and has certain organic sulfur hydrolysis performance, but the activity decreases rapidly with the increase of use time, which is generally considered to be caused by catalyst sulfation poisoning. Due to the presence of sulfur dioxide and the irreversible adsorption of sulfur dioxide on the catalyst, the iron-containing alumina catalyst has good oxygen resistance, but the organosulfur hydrolysis performance is not ideal; Good, but the cost is high, and the loss is large, and the existing catalyst takes a long time to react under the condition that the total sulfur conversion rate meets the requirements under the condition of a certain amount

Method used

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  • A kind of titanium dioxide-based sulfur recovery catalyst and its preparation method
  • A kind of titanium dioxide-based sulfur recovery catalyst and its preparation method
  • A kind of titanium dioxide-based sulfur recovery catalyst and its preparation method

Examples

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Effect test

Embodiment 1

[0027] The titania-based sulfur recovery catalyst in this example consists of the following components: 86 parts by weight of porous oxides with a particle size of 180 μm, 12 parts by weight of graphene, 5 parts by weight of iron oxide and 6 parts by weight of manganese dioxide, wherein, The porous oxide is composed of 30 parts by weight of activated alumina with a particle size of 4-6 μm, 60 parts by weight of titanium dioxide with a particle size of 1-3 μm and 50 parts by weight of silicon dioxide with a particle size of 15-20 μm.

[0028] The preparation method of the titanium dioxide-based sulfur recovery catalyst in the present embodiment comprises the following steps:

[0029] (1) Prepare raw materials: Prepare raw materials according to the following parts by weight: 86 parts by weight of porous oxides with a particle size of 180 μm, 12 parts by weight of graphene, 5 parts by weight of iron oxide and 6 parts by weight of manganese dioxide, wherein the porous oxide The m...

Embodiment 2

[0040] The titanium dioxide-based sulfur recovery catalyst in this example consists of the following components: 90 parts by weight of porous oxides with a particle size of 160 μm, 15 parts by weight of graphene, 7 parts by weight of iron oxide and 4 parts by weight of manganese dioxide, wherein, The porous oxide is composed of 20 parts by weight of activated alumina with a particle size of 6-10 μm, 70 parts by weight of titanium dioxide with a particle size of 1-3 μm and 45 parts by weight of silicon dioxide with a particle size of 15-20 μm.

[0041] The preparation method of the titanium dioxide-based sulfur recovery catalyst in the present embodiment comprises the following steps:

[0042] (1) Prepare raw materials: Prepare raw materials according to the following parts by weight: 90 parts by weight of porous oxides with a particle size of 160 μm, 15 parts by weight of graphene, 7 parts by weight of iron oxide and 4 parts by weight of manganese dioxide, wherein the porous ox...

Embodiment 3

[0053] The titanium dioxide-based sulfur recovery catalyst in this example consists of the following components: 80 parts by weight of porous oxides with a particle size of 190 μm, 13 parts by weight of graphene, 8 parts by weight of iron oxide and 5 parts by weight of manganese dioxide, wherein, The porous oxide is composed of 25 parts by weight of activated alumina with a particle size of 4-6 μm, 50 parts by weight of titanium dioxide with a particle size of 1-2 μm and 40 parts by weight of silicon dioxide with a particle size of 15-20 μm.

[0054] The preparation method of the titanium dioxide-based sulfur recovery catalyst in the present embodiment comprises the following steps:

[0055] (1) Prepare raw materials: Prepare raw materials according to the following parts by weight: 80 parts by weight of porous oxides with a particle size of 190 μm, 13 parts by weight of graphene, 8 parts by weight of iron oxide and 5 parts by weight of manganese dioxide, wherein the porous oxi...

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Abstract

The invention discloses a titanium dioxide-based sulfur recovery catalyst and a preparation method thereof, wherein the titanium dioxide-based sulfur recovery catalyst consists of the following components: 80-90 parts by weight of porous oxides with a particle size of 150-200 μm, 10-15 Parts by weight of graphene, 5-8 parts by weight of iron oxide and 4-6 parts by weight of manganese dioxide, the porous oxide consists of 20-30 parts by weight of activated alumina, 60-80 parts by weight of titanium dioxide and 40-50 parts by weight Composition of silica. The titanium dioxide-based sulfur recovery catalyst in the present invention reduces the cost of the catalyst under the premise of ensuring the hydrolysis activity of the catalyst to organic sulfur and the anti-oxidation ability, and at the same time improves the catalytic conversion efficiency of the quantitative catalyst under the same working conditions.

Description

technical field [0001] The invention relates to the technical field of sulfur recovery, in particular to a preparation method and application of a titanium dioxide-based sulfur recovery catalyst. Background technique [0002] The sulfur recovery catalysts on industrial units today are activated alumina, iron-containing alumina catalysts, titanium-containing alumina catalysts and titanium-based catalysts. The developed sulfur recovery catalysts have their own advantages and disadvantages. At present, the active alumina catalyst commonly used in industry has good initial activity and has certain organic sulfur hydrolysis performance, but the activity decreases rapidly with the increase of use time, which is generally considered to be caused by catalyst sulfation poisoning. Due to the presence of sulfur dioxide and the irreversible adsorption of sulfur dioxide on the catalyst, the iron-containing alumina catalyst has good oxygen resistance, but the organosulfur hydrolysis perf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/889C01B17/02C01B17/04
CPCB01J23/8892C01B17/02C01B17/0404C01B17/0434
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
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