Supported desulfurization catalyst and preparation method thereof

A desulfurization catalyst and a supported technology, which are used in the preparation of supported desulfurization catalysts and the field of supported desulfurization catalysts, can solve the problems of low desulfurization performance, limited desulfurization environment, and pollution of the environment.

Active Publication Date: 2021-11-16
德微科技有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing desulfurization catalysts have low desulfurization performance and are limited by the desulfurization environment. For example, they are only suitable for low temperature and low oxygen concentration conditions, or the secondary treatment of solid waste formed after desulfurization will pollute the environment.

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

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0037] First, prepare 1000L of complexed iron solution with a complexed iron ion concentration of 0.03mol / L: weigh 6.7Kg of sorbitol, 24Kg of disodium EDTA and 10Kg of ferrous sulfate and dissolve them in 1000L of deionized water to form a solution, stir the solution 12h, so that the internal raw materials fully contact and oxidize the ferrous ions, add sodium carbonate to the solution continuously during the stirring period to adjust the pH value of the solution, so that the final pH value of the complexed iron solution is 9.2, and the deep red solution is obtained. iron solution.

[0038] Then, weigh 100Kg and aluminum oxide (Al 2 o 3 ), pour it into the sugar-coating machine, and spray or dip 60Kg of the complex iron solution (0.03mol / L) prepared above into the alumina, control the sugar-coating machine to turn and roll for 10-50min, so that all the complex iron solution is covered by the alumina Fully absorbed to get loaded alumina.

[0039] Afterwards, the loaded alumi...

example 2

[0041] First, prepare 1000L of complex iron solution with a complex iron ion concentration of 0.03mol / L: weigh 6.7Kg of sorbitol, 24Kg of disodium EDTA and 15.1Kg of ferrous ammonium sulfate in 1000L of deionized water, and stir the solution for 12 hours , so that the internal raw materials fully contact and oxidize the ferrous ions. During the stirring period, sodium carbonate is continuously added to the solution to adjust the pH value of the solution, so that the final pH value of the complex iron solution is 9.2, and a deep red solution is obtained. solution.

[0042] Then, weigh 100Kg of aluminum oxide with a water absorption rate of 60%, pour it into a sugar-coating machine, and spray or dip 60Kg of the complex iron solution prepared above to the aluminum oxide, control the sugar-coating machine to turn and roll for 10-50min, so that all The complex iron solution is completely absorbed by alumina to obtain loaded alumina.

[0043] Afterwards, the loaded alumina is taken...

example 3

[0045] First, prepare 1000L of complexed iron solution with a complexed iron ion concentration of 0.03mol / L: weigh 6.7Kg of sorbitol, 24Kg of disodium EDTA and 11.6Kg of ferric ammonium sulfate in 1000L of deionized water to obtain a solution, stir to dissolve Solution 2h, continuously add sodium carbonate to the solution during stirring to adjust the pH value of the solution, so that the final pH value of the complex iron solution is 10.2, and a deep red solution is the complex iron solution.

[0046] Then, weigh 1000Kg of alumina with a water absorption rate of 60%, pour it into a double-cone rotary impregnation machine, and spray or dip 600Kg of the complex iron solution prepared above to the alumina, and control the double-cone rotary impregnation machine to turn over Roll for 10-50 minutes, so that all complex iron solution is completely absorbed by alumina to obtain supported alumina.

[0047] Afterwards, the loaded alumina is taken out and placed in a sealed bag for 6-2...

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
Specific surface areaaaaaaaaaaa
Average pore sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to view more

Abstract

The embodiment of the invention provides a supported desulfurization catalyst and a preparation method of the supported desulfurization catalyst. The supported desulfurization catalyst comprises, for example, a porous alumina carrier and aminocarboxylic acid complex iron ions supported on the surface of the porous alumina carrier. The specific surface area of the porous alumina carrier is 50-500 square meters per gram, the average pore volume of the porous alumina carrier is 0.05-0.8 cubic centimeters per gram, and the average pore size of the porous alumina carrier is 0.5-50 nanometers. The supported desulfurization catalyst provided by the embodiment of the invention is suitable for desulfurization of to-be-desulfurized gas containing hydrogen sulfide and oxygen, can oxidize hydrogen sulfide into elemental sulfur, has higher desulfurization performance, and is suitable for a desulfurization environment with higher reaction temperature and higher oxygen concentration.

Description

technical field [0001] The invention relates to the technical field of gas purification and environmental protection, in particular to a loaded desulfurization catalyst and a preparation method of the loaded desulfurization catalyst. Background technique [0002] Raw material gases such as blast furnace gas (also known as blast furnace gas) or coke oven gas (also known as coke oven gas) are produced in iron and steel smelting, coal chemical industry and other production processes, which contain hydrogen sulfide (H 2 S) gases, even organic sulfides (such as carbonyl sulfide, which produce H after hydrolysis 2 S), high concentration of H 2 The existence of S not only pollutes the environment, corrodes pipeline equipment, and affects product quality, but also causes catalyst poisoning and deactivation in subsequent process production, so H in the gas phase is removed 2 S is a very important process. At present, the existing desulfurization catalysts have low desulfurization ...

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
IPC IPC(8): B01J31/22B01J31/26B01J35/10B01J32/00B01J21/04B01D53/52B01D53/86
CPCB01J31/2239B01J31/2217B01J31/26B01J21/04B01D53/8612B01J2531/842B01D2257/304B01J35/23B01J35/613B01J35/643B01J35/635B01J35/633B01J35/647B01J35/615
Inventor 刘时球
Owner 德微科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap