IDEAS home Printed from https://ideas.repec.org/a/wly/greenh/v5y2015i1p108-114.html
   My bibliography  Save this article

Carbonic anhydrase promoted absorption of CO 2 into potassium carbonate solutions

Author

Listed:
  • Hendy Thee
  • Kathryn H. Smith
  • Gabriel da Silva
  • Sandra E. Kentish
  • Geoffrey W. Stevens

Abstract

The effect of adding relatively small quantities of Novozymes NS81239 (NCA) carbonic anhydrase enzyme on the absorption of CO 2 into a 30 wt% potassium carbonate solution has been investigated. Results demonstrated that at 40°C the addition of 2 μM NCA enhances the pseudo‐first‐order rate coefficient and thus the overall absorption process of CO 2 into potassium carbonate solvents by around 30%. As the enzyme concentration is increased in the range of about 0 to 2 μM the enhancement increases according to a first order relationship, although further increasing the NCA concentration to 9 μM presented no greater catalytic effect than that from 2 μM. The rate coefficient for NCA catalyzed CO 2 hydration measured in 30 wt% K 2 CO 3 solution at 40°C in a wetted wall column is similar to that measured in dilute, neutral pH media at room temperature using stopped flow spectrophotometry. This work also demonstrates that, at a constant enzyme concentration, the overall absorption of CO 2 into carbonate solvents increases with temperature from 40°C to 60°C, whereas above this range an increase in temperature proves to be counter‐productive.

Suggested Citation

  • Hendy Thee & Kathryn H. Smith & Gabriel da Silva & Sandra E. Kentish & Geoffrey W. Stevens, 2015. "Carbonic anhydrase promoted absorption of CO 2 into potassium carbonate solutions," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 5(1), pages 108-114, February.
  • Handle: RePEc:wly:greenh:v:5:y:2015:i:1:p:108-114
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1002/ghg.1455
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Dea Hyun Moon & Jun Eu & Wonhee Lee & Young Eun Kim & Ki Tae Park & You Na Ko & Soon Kwan Jeong & Min Hye Youn, 2020. "Comparison of reactions with different calcium sources for CaCO3 production using carbonic anhydrase," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 10(5), pages 898-906, October.
    2. Foster Kofi Ayittey & Agus Saptoro & Perumal Kumar & Mee Kee Wong, 2020. "Parametric study and optimisation of hot K2CO3‐based post‐combustion CO2 capture from a coal‐fired power plant," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 10(3), pages 631-642, June.
    3. Qi, Guojie & Liu, Kun & House, Alan & Salmon, Sonja & Ambedkar, Balraj & Frimpong, Reynolds A. & Remias, Joseph E. & Liu, Kunlei, 2018. "Laboratory to bench-scale evaluation of an integrated CO2 capture system using a thermostable carbonic anhydrase promoted K2CO3 solvent with low temperature vacuum stripping," Applied Energy, Elsevier, vol. 209(C), pages 180-189.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:wly:greenh:v:5:y:2015:i:1:p:108-114. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Wiley Content Delivery (email available below). General contact details of provider: https://doi.org/10.1002/(ISSN)2152-3878 .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.