Supercharge Your Innovation With Domain-Expert AI Agents!

Method for adsorbing H2S in coke oven gas

A technology of coke oven gas and coke oven, which is applied in the field of simultaneous partial regeneration of H2S in ion exchange fiber adsorption coke oven gas, which can solve the problems of affecting production safety, reducing process progress, and long construction period, so as to improve utilization rate and reduce operation Effects of cost and usage reduction

Active Publication Date: 2021-09-21
深圳灏权环保有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the regeneration process, it is necessary to stop production and elute the ion exchange fiber separately for regeneration. The construction period is long, and one backup and one use are required.
At the same time, during the entire hydrogen sulfide removal process, the entire process needs to be shut down, and the ion-exchange fiber is eluted and regenerated with chemical reagents alone, which is time-consuming and labor-intensive or starts with standby equipment, which requires a large investment and may It will affect production safety and reduce process progress, which will bring different degrees of economic losses and negative impacts on environmental protection

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
  • Method for adsorbing H2S in coke oven gas
  • Method for adsorbing H2S in coke oven gas
  • Method for adsorbing H2S in coke oven gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0114] Taking the coke oven gas treatment unit of 4# furnace in Shaoer Power Station as an example, the 1080m 3 / h H in coke oven gas 2 S content is 163mg / m 3 :

[0115] 1) Transformation: Using OH strong base anion exchange fiber 8.34m 3 , the ion exchange material is first transformed with 3% NaClO+5% NaOH (PH about 13) before use; during the transformation, control 1 times the space flow velocity, and the dosage is 2 times the volume of the ion exchange material;

[0116] 2) Operation: Turn on the induced draft fan to run normally, (during the operation period, do not stop the machine for spraying);

[0117] 3), running end control: when the processed H 2 S gas leakage exceeds 15mg / m 3 (or H 2 S test paper starts to change color) and starts to drip;

[0118] 4), Drenching liquid: 2.78m of oxidizing agent is prepared in the oxidizing agent storage tank 3 , open valves A and B, close valves D, C and E, start pump 1, and control the flow rate of oxidant to 4.17m 3 / h ...

Embodiment 2

[0122] The composition of spray oxidant solution is 4% Ca(ClO) 2 +4%NaOH, other steps are the same as in Example 1.

Embodiment 3

[0124] The spray oxidant solution consists of: 2% NaClO 2 +1%NaOH, other steps are the same as in Example 1.

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 relates to a method for adsorbing H2S in coke oven gas, wherein the method comprises the steps of flue gas pretreatment, fiber oxidation, H2S adsorption and regeneration liquid recycling; common ion exchange fibers are converted into a form with an oxidation group by using an oxidizing agent, so that the common ion exchange fibers not only have an ion exchange function, but also have strong oxidizability; and by means of an intermittent regenerant spraying mode, the oxidation, exchange and partial regeneration of the exchange resin can be realized without stopping work and production, and high-efficiency H2S adsorption performance is achieved.

Description

technical field [0001] This application relates to the technical field of coke oven gas purification, and relates to a method for adsorbing H in coke oven gas. 2 The method of S, particularly relates to a kind of ion exchange fiber adsorption coke oven gas H 2 S Simultaneous partial regeneration method. Background technique [0002] Coke oven gas, also known as coke oven gas, density at room temperature: 0.45kg~0.47kg / Nm 3 (average value), the English name is Coke Oven Gas (COG), because it has many combustible components, it belongs to high calorific value gas, crude gas or raw gas. It refers to a kind of combustible gas produced while coke and tar products are produced after high-temperature dry distillation in a coke oven by using several kinds of bituminous coal to prepare coking coal. It is a by-product of the coking industry. Coke oven gas is a mixture, and its output rate and composition vary with the quality of coking coal and coking process conditions. Generally,...

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): C10K1/12C10K1/26C10K1/32C10K1/00
CPCC10K1/004C10K1/12C10K1/122C10K1/26C10K1/32
Inventor 樊振江史磊田二飞李龙博范瑞华杨海岳
Owner 深圳灏权环保有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com