Unlock instant, AI-driven research and patent intelligence for your innovation.

De-oxidation protection type sulfur recovery catalyst and preparation method thereof

A sulfur recovery and catalyst technology, applied in chemical instruments and methods, sulfur preparation/purification, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as high cost, large loss, and long reaction time. Achieve the effect of low cost, good anti-oxidation function, and increase the recovery rate of total sulfur

Inactive Publication Date: 2018-10-19
江苏天东新材料科技有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the performance of the titanium-based catalyst is better, the cost is higher and the loss is larger, 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • De-oxidation protection type sulfur recovery catalyst and preparation method thereof
  • De-oxidation protection type sulfur recovery catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The deoxidation protection type sulfur recovery catalyst provided by the present invention is composed of the following components: 10 parts by weight of graphene, 26 parts by weight of quenched ferromanganese slag, 28 parts by weight of diatomite, 42 parts by weight of activated alumina, 9 parts by weight of oxide Iron, 0.4 parts by weight of lanthanum oxide and 1.8 parts by weight of vanadium pentoxide.

[0029] In this embodiment, the preparation method of the deoxidation protection type sulfur recovery catalyst comprises the following steps:

[0030] (1) Prepare raw materials: Prepare raw materials according to the following parts by weight: 10 parts by weight of graphene, 26 parts by weight of quenched ferromanganese slag, 28 parts by weight of diatomaceous earth, 42 parts by weight of activated alumina, 9 parts by weight of iron oxide, 0.4 parts by weight Part of lanthanum oxide and 1.8 parts by weight of vanadium pentoxide;

[0031] (2) 26 parts by weight of que...

Embodiment 2

[0041] The deoxidation protection type sulfur recovery catalyst provided by the invention is composed of the following components: 8 parts by weight of graphene, 28 parts by weight of quenched ferromanganese slag, 22 parts by weight of diatomite, 48 parts by weight of activated alumina, 12 parts by weight of oxide Iron, 0.6 parts by weight of lanthanum oxide and 2 parts by weight of vanadium pentoxide, wherein the quenched ferromanganese slag is porous ferromanganese slag, and the mass ratio of iron and manganese in the described quenched ferromanganese slag is 1:99, The mass percent of manganese in the quenched ferromanganese slag is 11%, the particle size of activated alumina is 10-20 μm, the particle size of iron oxide is 1-2 μm, and the particle size of lanthanum oxide and vanadium pentoxide is 0.5-20 μm. 1 μm.

[0042] In this embodiment, the preparation method of the deoxidation protection type sulfur recovery catalyst comprises the following steps:

[0043] (1) Prepare...

Embodiment 3

[0054] The deoxidation protection type sulfur recovery catalyst provided by the present invention is composed of the following components: 11 parts by weight of graphene, 20 parts by weight of quenched manganese ferromanganese slag, 30 parts by weight of diatomite, 40 parts by weight of activated alumina, 6 parts by weight of oxide Iron, 0.3 parts by weight of lanthanum oxide and 2.4 parts by weight of vanadium pentoxide, wherein the quenched ferromanganese slag is porous ferromanganese slag, and the mass ratio of iron and manganese in the described quenched ferromanganese slag is 1:80, The mass percentage of manganese in the quenched ferromanganese slag is 15%, the particle size of activated alumina is 15-20 μm, the particle size of iron oxide is 2-3 μm, and the particle size of lanthanum oxide and vanadium pentoxide is 0.8-20 μm. 1 μm.

[0055] In this embodiment, the preparation method of the deoxidation protection type sulfur recovery catalyst comprises the following steps...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a de-oxidation protection type sulfur recovery catalyst and a preparation method thereof. The catalyst comprises following components in parts by weight: 8 to 12 parts of graphene, 20 to 30 parts of quenched ferrous manganese ore residue, 20 to 30 parts of diatomite, 40 to 50 parts of active alumina, 6 to 15 parts of iron oxide, 0.3 to 0.6 part of lanthanum oxide, and 1.6 to 2.4 parts of vanadium pentoxide. The cost of the provided catalyst is low, moreover, the preparation method is simple, and the catalyst has good Claus reaction activity and a strong antioxidant performance.

Description

technical field [0001] The invention relates to the technical field of sulfur recovery, in particular to a deoxidation protection type sulfur recovery catalyst and a preparation method thereof. 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. The activity of sulfur recovery catalysts commonly used in the industry decreases rapidly with the increase of use time, and when the oxygen concentration exceeds 5000ppm, the effective use time of existing sulfur recovery catalysts is even shorter. Although the performance of the titanium-based catalyst is better, 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 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889C01B17/02C01B17/04
CPCB01J23/8892C01B17/02C01B17/0404C01B17/0434Y02P20/584
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