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

Carbon dioxide absorbent with low flow resistance and preparation method thereof

A carbon dioxide and absorbent technology, which is applied to chemical instruments and methods, separation methods, and dispersed particle separation, etc., can solve problems such as secondary pollution, easy to float into the air, and loose structure of carbon dioxide absorbents, so as to extend the working time , the effect of reducing resistance

Inactive Publication Date: 2016-01-06
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] my country's submarine airtight compartment against CO 2 At present, the removal of granular lithium hydroxide is mainly used. This carbon dioxide absorbent has a loose structure and is easy to float into the air and cause secondary pollution to the air in the cabin.

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
  • Carbon dioxide absorbent with low flow resistance and preparation method thereof
  • Carbon dioxide absorbent with low flow resistance and preparation method thereof
  • Carbon dioxide absorbent with low flow resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0021] The following takes the first carbon dioxide absorbent molding method as an example to illustrate.

[0022] The composition of the compressed medicine formula used in Examples 1-5 is shown in Table 1 below.

[0023] Table 1 Composition of compressed medicine formula

[0024]

[0025] The weight of the non-perforated medicine pan is designed to be 360g. After the total amount of medicine is determined according to the quantity of the pressed medicine pan, the mass of each component is taken out according to the formula, and then LiOH, NaOH, Ca(OH) are weighed out in sequence 2 And raw materials such as sodium carboxymethyl cellulose. After the weighed components are put into a multi-directional motion mixer and mixed uniformly, the mixed materials are divided into 360g / portion, and filled into the cavity of the compression mold. Place the mold on the operating table of the four-column hydraulic press, press the upper punch of the mold in place under a pressure of 5 to 12 MPa a...

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
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a carbon dioxide absorbent with low flow resistance, belonging to the technical field of air purification in enclosed spaces. The carbon dioxide absorbent is a honeycomb-like CO2 absorbent medicament tray prepared by pressing the following raw materials by mass: 85% to 99% of lithium hydroxide, 0% to 5% of sodium hydroxide, 0% to 5% of calcium hydroxide and 1% to 5% of a binder. The carbon dioxide absorbent provided by the invention has two molding manners, is mainly applied to removal of carbon dioxide exhaled by an occupant in a space suit, and can also be used for removal of carbon dioxide in the enclosed spaces of firefighting, submarines, underground tunnels, etc. The carbon dioxide absorbent provided by the invention can greatly reduce resistance of air flow in an air circulation loop; and compared with flow resistance of a granular carbon dioxide absorbent, the flow resistance of the carbon dioxide absorbent in the invention significantly reduces from about 600 Pa to about 250 Pa. According to the invention, axial compressive strength of the carbon dioxide absorbent is more than or equal to 1.5MPa, and radial compressive strength of the carbon dioxide absorbent is more than or equal to 0.5MPa. A plurality of pieces of the absorbent can be stacked together for use, thereby greatly prolonging working time.

Description

Technical field [0001] The invention belongs to the technical field of air purification in confined spaces, and specifically relates to a carbon dioxide absorbent applied to the removal of carbon dioxide exhaled by occupants in a space suit, and can also be used to remove carbon dioxide in confined spaces such as fire fighting, submarines, underground tunnels and the like. Background technique [0002] When performing extravehicular missions, astronauts need to ensure that the carbon dioxide (CO 2 ) The concentration is controlled within the allowable range, and the purification device is to control CO 2 The functional body of the concentration mainly depends on the carbon dioxide absorbent filled in the purification device to absorb and control CO 2 To ensure the safety of the astronauts and their health. [0003] The carbon dioxide absorbent filled in the purification device of the space suit is mainly lithium hydroxide. Usually, the astronauts produce about 92.7g CO per hour when...

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): B01D53/81B01D53/62B01D53/14
CPCY02A50/20Y02C20/40
Inventor 邓康清夏强徐浩星周渝淞刘红李俊彬郭翔崔兵彦杜又新陈淑娟胡发灵牛同锋
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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