IDEAS home Printed from https://ideas.repec.org/a/wly/greenh/v9y2019i3p539-552.html
   My bibliography  Save this article

Sulfation, pore, and fractal properties of hydrated spent calcium magnesium acetate from calcium‐based looping

Author

Listed:
  • Shiling Zhang
  • Lihui Zhang
  • Feng Duan

Abstract

Hydration of the spent calcium‐based sorbent from calcium‐looping can improve its inadequate pore characteristics. The hydrated sorbent can be used for desulfurization before calcium‐based looping, which decreases the SO2 concentration in the flue gas entering the calcium‐based looping and also decreases the cost of CO2 capture. The effects of hydration time, hydration temperature, and liquid‐solid ratio on the reactivation performance of a hydrated spent calcium‐based sorbent were studied using spent calcium magnesium acetate (CMA) in this study. Fractal analysis based on the pore structure data of the hydrated sorbents was also conducted, and the relationship between the fractal dimension and the desulfurization performance of the hydrated spent sorbents was also investigated. The results showed that the sulfation conversion rate of the hydrated spent CMA decreased slowly at first, and then increased with hydration time. The conversion rate also increased with the hydration temperature but it decreased with the liquid‐solid ratio. The maximum sulfation conversion of the hydrated spent CMA under the optimized conditions was 68.0%, which approached that of fresh CMA. Compared to that of spent CMA, the sulfation conversion increased by 53.3%. The spent CMA consisted mainly of mesopores and macropores. After hydration, the volumes of both types of pores increased. However, the mesopore percentage decreased, while the macropore percentage increased. The hydrated spent CMA had obvious fractal characteristics. There was an optimum range for the fractal dimension of the samples, 2.31

Suggested Citation

  • Shiling Zhang & Lihui Zhang & Feng Duan, 2019. "Sulfation, pore, and fractal properties of hydrated spent calcium magnesium acetate from calcium‐based looping," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 9(3), pages 539-552, June.
    • Handle: RePEc:wly:greenh:v:9:y:2019:i:3:p:539-552
    DOI: 10.1002/ghg.1864
    as

    Download full text from publisher

    File URL: https://doi.org/10.1002/ghg.1864
    Download Restriction: no
    File URL: https://libkey.io/10.1002/ghg.1864?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

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


    Cited by:

    1. Chaoying Sun & Xianyao Yan & Yingjie Li & Jianli Zhao & Zeyan Wang & Tao Wang, 2020. "Coupled CO2 capture and thermochemical heat storage of CaO derived from calcium acetate," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 10(5), pages 1027-1038, October.

    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:9:y:2019:i:3:p:539-552. 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.