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

Regeneration method of carbon-based nonmetal desulfurizer

A desulfurizer and non-metallic technology, which is applied in the field of regeneration of carbon-based non-metallic desulfurizers, can solve the problems of long regeneration time, decreased mechanical strength, and large water consumption, so as to reduce regeneration costs, shorten regeneration time, and reduce industrial costs Effect

Active Publication Date: 2018-05-22
成都达奇科技股份有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water washing regeneration removes sulfuric acid through water washing and concentration difference, but this regeneration method consumes a lot of water, the regeneration time is long, the dilute sulfuric acid contained in the eluate is difficult to use, and the regeneration rate for deactivated carbon-based desulfurizers is not high; The thermal regeneration method needs to strictly control the temperature and time, and consumes a lot of energy, and thermal regeneration has the disadvantages of carbon loss to the carbon-based catalyst, a decrease in mechanical strength, and a change in the surface chemical structure.

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
  • Regeneration method of carbon-based nonmetal desulfurizer
  • Regeneration method of carbon-based nonmetal desulfurizer
  • Regeneration method of carbon-based nonmetal desulfurizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] (1) Desulfurization agent soaking: select a carbon-based non-metallic desulfurizer, denoted as NS-AC (A), use it for desulfurization as an inactivated carbon-based non-metallic desulfurizer, weigh 15g of the deactivated carbon Place the base non-metal desulfurizer in the regeneration container, add 15ml of distilled water to soak the desulfurizer, and then pour 50ml of butyl acetate to immerse the desulfurizer;

[0064] (2) Vacuum leaching regeneration: seal the regeneration container obtained in step (1), turn on the circulating water vacuum pump, and process the regeneration container obtained in step (1) under a vacuum degree of 0.06 MPa for 16 minutes;

[0065] (3) Drying: Filter the contents of the regeneration container obtained in step (2), collect the filtrate, place the filter cake in a fume hood to dry, and then move it to a 105°C drying oven for 12 hours to obtain the regenerated Carbon-based non-metallic desulfurizer, denoted as NS-AC-C1;

[0066] (4) filtr...

Embodiment 2

[0068] (1) Desulfurization agent soaking: select the same carbon-based non-metallic desulfurizer as in Example 1, use it for desulfurization and become an inactivated carbon-based non-metallic desulfurizer, take 15g of this deactivated carbon-based non-metallic desulfurizer Place it in a regeneration container, add 15ml of distilled water to soak the desulfurizer, then pour 50ml of butyl acetate to immerse the desulfurizer;

[0069] (2) Vacuum leaching regeneration: seal the regeneration container obtained in step (1), turn on the circulating water vacuum pump, and process the regeneration container obtained in step (1) under a vacuum degree of 0.06 MPa for 16 minutes;

[0070] (3) Drying: Filter the contents of the regeneration container obtained in step (2), collect the filtrate, place the filter cake in a fume hood to dry, and then move it to a 105°C drying oven for 12 hours to obtain the regenerated carbon-based Non-metallic desulfurizer;

[0071] (4) Repeated regeneratio...

Embodiment 3

[0074] (1) Desulfurization agent soaking: select the same carbon-based non-metallic desulfurizer as in Example 1, use it for desulfurization and become an inactivated carbon-based non-metallic desulfurizer, take 15g of this deactivated carbon-based non-metallic desulfurizer Place it in a regeneration container, add 15ml of distilled water to soak the desulfurizer, then pour 50ml of butyl acetate to immerse the desulfurizer;

[0075] (2) Vacuum leaching regeneration: seal the regeneration container obtained in step (1), turn on the circulating water vacuum pump, and process the regeneration container obtained in step (1) under a vacuum degree of 0.06 MPa for 16 minutes;

[0076] (3) Drying: Filter the contents of the regeneration container obtained in step (2), collect the filtrate, place the filter cake in a fume hood to dry, and then move it to a 105°C drying oven for 12 hours to obtain the regenerated carbon-based Non-metallic desulfurizer;

[0077] (4) Repeated regeneratio...

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

No PUM Login to View More

Abstract

The invention provides a regeneration method of a carbon-based nonmetal desulfurizer. According to the regeneration method, after desulfurization, an inactivated carbon-based nonmetal desulfurizer isplaced in a container; at first, deionized water is added to infiltrate the desulfurizer; then a non-water-soluble organic solution, which is hardly soluble in sulfuric acid, is used to immerse the desulfurizer; and finally the desulfurizer is subjected to following steps: vacuum extraction and regeneration, drying, and filtrate recovering so as to obtain a regenerated carbon-based nonmetal desulfurizer and a byproduct namely diluted sulfuric acid. The regeneration method has the advantages of high regeneration rate, low cost, valuable byproduct, and simple technology, is suitable for popularization, and is benefit for the popularization and application of a novel catalytic flue gas desulfurization technology.

Description

technical field [0001] The invention belongs to the technical field of desulfurizing agents, and in particular relates to a regeneration method of a carbon-based non-metallic desulfurizing agent. Background technique [0002] In recent years, the total amount of sulfur dioxide emissions in my country has continuously ranked first in the world. At present, there are more than 200 flue gas desulfurization technologies (FGD) developed at home and abroad, and the typical ones are lime-gypsum method, spray drying method, seawater desulfurization method, furnace Desulfurization technologies such as internal injection calcium tail humidification activation method, activated coke desulfurization and new catalytic method. As the mainstream technology, the lime-gypsum method is simple and easy to implement, but the by-product gypsum is not of high quality and difficult to use, and it is easy to form calcium sulfite due to precipitation, which will form a scale layer on the pipeline, th...

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): B01J38/48
CPCB01J38/48B01J38/485
Inventor 李建军刘安琪郭家秀刘勇军贺尧祖
Owner 成都达奇科技股份有限公司