Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • harvard-cite-them-right
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Define optimum process conditions to produce CO2 adsorbents from pur materials
University of Borås, Faculty of Textiles, Engineering and Business.
University of Borås, Faculty of Textiles, Engineering and Business.
2022 (English)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The Carbon Capture and Storage method has been acknowledged for the capabilities of reducing up to 20% CO2 emissions. Development of porous carbon materials prepared from polyurethane foam adsorbent were investigated for capture of CO2. In this thesis work, the carbon material was chemically activated through the direct and indirect methods. Pre-carbonization, mass ratio KOH/char, activation temperature, and activation time, the effect of the preparation conditions on the porous adsorbent were evaluated for the purpose of managing pore sizes and developing high adsorption capacity of CO2. During the direct method, polyurethane foam was directly treated with KOH before activation. Whereas during the indirect method, the foam was pre-carbonized to form char, which was treated instead. The indirectly and directly activated adsorbent prepared at optimum conditions show adsorption capacities of 152,10 and 151,29 mg/g at 1 atm and 25°C respectively. The produced adsorbents were evaluated for their CO2 separation performance with a thermogravimetric analyser with 100% CO2. The CO2 uptake and pore sizes were directly affected by the different parameters. A moderate activation time and temperature presented a higher adsorption capacity, where it decreased after reaching a higher time and temperature. A higher KOH/char mass ratio leads to a higher CO2 uptake, where it steadily increases from the lowest mass ratio.

Place, publisher, year, edition, pages
2022.
Keywords [en]
Carbon capture and storage, Adsorbent, Chemical activation
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:hb:diva-28124OAI: oai:DiVA.org:hb-28124DiVA, id: diva2:1677168
Supervisors
Examiners
Available from: 2022-06-29 Created: 2022-06-27 Last updated: 2022-06-29Bibliographically approved

Open Access in DiVA

fulltext(2190 kB)84 downloads
File information
File name FULLTEXT01.pdfFile size 2190 kBChecksum SHA-512
6cf755cbdd49179d778552e23c23e66e1284391b16d4c27f93723cb042b41ef0db2eedef0c29346f46539b03c224d83076446d51457573b9b1f3f6c2a7c22eb7
Type fulltextMimetype application/pdf

By organisation
Faculty of Textiles, Engineering and Business
Chemical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 84 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 196 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • harvard-cite-them-right
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf