Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Process for solving coal gas desulfuration liquid expansion in coking industry and system for process

A desulfurization liquid and gas technology, applied in the chemical industry, can solve the problems of desulfurization liquid expansion and difficult to solve, so as to avoid secondary pollution and solve the effect of uncontrollable water balance

Inactive Publication Date: 2016-06-22
JINNENG SCI & TECH
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0069] In order to solve the above-mentioned technical problems, the present invention provides a new process for solving the expansion of gas desulfurization liquid in the coking industry - gas blowing ammonia process, so as to completely solve the difficult problem of desulfurization liquid expansion in the production of traditional gas desulfurization process

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
  • Process for solving coal gas desulfuration liquid expansion in coking industry and system for process
  • Process for solving coal gas desulfuration liquid expansion in coking industry and system for process
  • Process for solving coal gas desulfuration liquid expansion in coking industry and system for process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] The technique for solving the expansion of gas desulfurization liquid in the coking industry of the present invention specifically includes the following steps:

[0100] (1) The gas (500-1200m 3 / h) Enter the ammonia blowing tower from bottom to top, and contact with the concentrated ammonia water entering from the top of the tower in reverse. source, this part of the gas is desulfurized and then ammonium desulfurized and circulated in this way;

[0101] (2) The concentrated ammonia water at about 45-55°C from ammonia distillation enters the ammonia blowing tower from top to bottom, and contacts with the gas entering from the bottom of the ammonia blowing tower in reverse, the ammonia in the concentrated ammonia water is taken away with the gas, and the remaining water is It is discharged from the bottom of the tower and pumped to the cold drum tar tanker. After sedimentation and separation, the upper ammonia water enters the circulating ammonia water system, and then ...

Embodiment 2

[0132] The technique for solving the expansion of gas desulfurization liquid in the coking industry of the present invention specifically includes the following steps:

[0133] (1) Gas (500-1200m 3 / h) The gas is sent to the pre-cooling tower for pre-cooling through the gas centrifugal fan, and the pre-cooled gas enters the desulfurization tower for desulfurization. The desulfurized gas passes through ammonium sulfate to remove crude benzene, and then enters the ammonia blowing tower;

[0134] (2) After the concentrated ammonia water is discharged from the ammonia distillation tower, it enters the ammonia blowing tower, contacts and fully mixes with the gas entering the ammonia blowing tower, the ammonia in the concentrated ammonia water is taken away by the gas, and the remaining water is discharged from the bottom of the ammonia blowing tower Discharge, coal gas and ammonia are transported to the desulfurization tower as the alkali source of desulfurization through the gas b...

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 belongs to the technical field of chemical industry, and in particular relates to a process for solving the expansion of gas desulfurization liquid in the coking industry. The invention adopts gas blowing and desorption method to remove ammonia in concentrated ammonia water, and the gas after desorbing ammonia is sent to the desulfurization tower as an alkali source for desulfurization, while the remaining water is discharged from the bottom of the tower, thereby realizing the purpose of gas blowing ammonia. Compared with the technology in the prior art, the present invention firstly solves the problem of insufficient alkali source of desulfurization in technology one; secondly, solves the problem that the water balance of the spray saturator cannot be controlled and the ammonium sulfate mother liquor is excessive. The amount of water brought into the desulfurization system by the device of the present invention is less, and the desulfurization system is short of water, and the distilled condensed liquid produced by extracting salt from the desulfurization waste liquid can be fully reused in the desulfurization system, and no excess waste water will be generated for coal blending or coke quenching. Satisfactory results have been achieved.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and specifically relates to a process for solving the expansion of gas desulfurization liquid in the coking industry, and also relates to a system used in the above-mentioned process. Background technique [0002] In the coking industry, most of the coal gas desulfurization process adopts the ammonia wet catalytic oxidation method, and some enterprises adopt the PDS method for desulfurization. It first converts the H in the gas 2 Acidic components such as S are converted into acidic ammonium salts such as ammonium sulfide, and then converted into elemental sulfur under the oxidation of oxygen in the air. The PDS desulfurization method adopts PDS (phthalocyanine cobalt) composite catalyst, which can make the desulfurization efficiency of coke oven gas reach more than 99%. [0003] 1. The basic reaction of PDS desulfurization [0004] The PDS method is a liquid-phase catalytic oxidatio...

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): C10K1/00C10K1/04C10K1/08
CPCC10K1/002B01D53/14B01D2252/102B01D2257/304B01D2257/408C10K1/04C10K1/08
Inventor 范安林刁兴伟谷文彬张合宾
Owner JINNENG SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com