Solid adsorbent regeneration process

A solid adsorbent and process technology, used in filter regeneration, petroleum industry, combustible gas purification, etc., can solve problems such as difficulty in finding outside gas, and achieve the effects of convenient secondary relocation, easy maintenance, and increased operating costs.

Inactive Publication Date: 2015-09-09
税建平
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, in addition to the introduction of contaminated nitrogen gas as regeneration gas in the decarbonization unit of the air separation industry, it is difficult to find suitable external gas as regeneration gas in other working conditions

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
  • Solid adsorbent regeneration process
  • Solid adsorbent regeneration process
  • Solid adsorbent regeneration process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 As shown, at least two adsorption towers are used to decarbonize the raw gas. The adsorption towers include a first adsorption tower that absorbs carbon dioxide and a second adsorption tower that regenerates after the adsorption is completed. The adsorption tower in this embodiment A and adsorption tower B are alternately used as the first adsorption tower. When one of the adsorption towers is used as the first adsorption tower, the other adsorption tower is the second adsorption tower. Both adsorption tower A and adsorption tower B have undergone adsorption, depressurization, heat Blowing, cold blowing several stages.

[0047] Taking adsorption tower A as the first adsorption tower and adsorption tower B as the second adsorption tower as an example, the regeneration process of the described solid adsorbent specifically includes:

[0048] A) Let the raw material gas containing carbon dioxide pass through the adsorption tower A, and the carbon dioxide i...

Embodiment 2

[0058] Such as figure 2 As shown, at least two adsorption towers are used to decarbonize the raw gas. The adsorption towers include a first adsorption tower that absorbs carbon dioxide and a second adsorption tower that regenerates after the adsorption is completed. The adsorption tower in this embodiment A and adsorption tower B are alternately used as the first adsorption tower. When one of the adsorption towers is used as the first adsorption tower, the other adsorption tower is the second adsorption tower. Pressing, cold blowing several stages.

[0059] Taking adsorption tower A as the first adsorption tower and adsorption tower B as the second adsorption tower as an example, the regeneration process of the described solid adsorbent specifically includes:

[0060] A) Let the raw material gas containing carbon dioxide pass through the adsorption tower A, and the carbon dioxide in the raw material gas is adsorbed by the adsorption tower A, so as to obtain the decarbonized ...

Embodiment 3

[0069] Such as image 3 As shown, at least two adsorption towers are used to decarbonize the raw gas. The adsorption towers include a first adsorption tower that absorbs carbon dioxide and a second adsorption tower that regenerates after the adsorption is completed. The adsorption tower in this embodiment A and adsorption tower B are alternately used as the first adsorption tower, and adsorption tower C and adsorption tower D are alternately used as the first adsorption tower. When one of the adsorption towers is used as the first adsorption tower, the other adsorption tower is the second adsorption tower, and Adsorption tower A and adsorption tower B constitute a stage of rough adsorption, and adsorption tower C and adsorption tower D constitute a second stage of fine adsorption. The raw material gas first undergoes a stage of rough adsorption and then undergoes a second stage of fine adsorption to achieve two-stage adsorption.

[0070] Adsorption tower A, adsorption tower 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 discloses a solid adsorbent regeneration process specifically including the steps: A) a carbon dioxide-containing raw material gas is allowed to pass through a first adsorption tower, carbon dioxide in the raw material gas is adsorbed by the first adsorption tower, so as to obtain decarbonized gas having carbon dioxide removed; and B) regeneration gas is adopted for making a second adsorption tower regenerated: a) in a pressure reduction stage, the second adsorption tower is subjected to pressure reduction, b) in a hot blowing stage, gas heated by a heating device is allowed to enter the second adsorption tower to heat the second adsorption tower, and c) in a cold blowing stage, the regeneration gas not heated by the heating device enters the second adsorption tower to cool the second adsorption tower to room temperature. The solid adsorbent regeneration process has the beneficial effects that with adopting of the pressure reduction way, the majority of adsorbed carbon dioxide is desorbed, then by means of hot blowing, the adsorbed residual carbon dioxide is desorbed, and the process is suitable for working conditions requiring lower percentage of carbon dioxide in product gas.

Description

technical field [0001] The invention relates to the technical field of adsorbent regeneration technology, in particular to a regeneration technology of solid adsorbent. Background technique [0002] For the removal of carbon dioxide contained in the gas, wet decarburization and dry decarburization are usually used. [0003] Wet decarbonization refers to the use of a liquid absorbent with carbon dioxide absorption capacity (usually an alcohol amine solution. Within a certain temperature range, as the solution temperature increases, the carbon dioxide absorption capacity weakens, and the solution temperature decreases, and the carbon dioxide absorption capacity increases. The absorption process is reversible.) Absorb carbon dioxide in the gas, so as to achieve the purpose of removing carbon dioxide. The liquid absorbent that has absorbed carbon dioxide is heated to desorb the carbon dioxide to achieve the purpose of regeneration of the liquid absorbent, so that the liquid abs...

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): B01J20/34
Inventor 曾杨
Owner 税建平
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