BROWSE

Related Researcher

Author's Photo

Seo, Yongwon
Advanced Clean Energy Lab (ACE Lab)
Research Interests
  • Gas Hydrates, Greenhouse Gas, Clean Energy

ITEM VIEW & DOWNLOAD

Effects of water vapor pretreatment time and reaction temperature on CO2 capture characteristics of a sodium-based solid sorbent in a bubbling fluidized-bed reactor

Cited 59 times inthomson ciCited 70 times inthomson ci
Title
Effects of water vapor pretreatment time and reaction temperature on CO2 capture characteristics of a sodium-based solid sorbent in a bubbling fluidized-bed reactor
Author
Seo, YongwonJo, Sung-HoRyu, Chong KulYi, Chang-Keun
Keywords
Capture; Carbonation; CO2; Dry sorbent; Fluidized-bed reactor
Issue Date
2007-10
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
CHEMOSPHERE, v.69, no.5, pp.712 - 718
Abstract
CO2 capture from flue gas using a sodium-based solid sorbent was investigated in a bubbling fluidized-bed reactor. Carbonation and regeneration temperature on CO2 removal was determined. The extent of the chemical reactivity after carbonation or regeneration was characterized via 13C NMR. In addition, the physical properties of the sorbent such as pore size, pore volume, and surface area after carbonation or regeneration were measured by gas adsorption method (BET). With water vapor pretreatment, near complete CO2 removal was initially achieved and maintained for about 1-2 min at 50 °C with 2 s gas residence time, while without proper water vapor pretreatment CO2 removal abruptly decreased from the beginning. Carbonation was effective at the lower temperature over the 50-70 °C temperature range, while regeneration more effective at the higher temperature over the 135-300 °C temperature range. To maintain the initial 90% CO2 removal, it would be necessary to keep the regeneration temperature higher than about 135 °C. The results obtained in this study can be used as basic data for designing and operating a large scale CO2 capture process with two fluidized-bed reactors.
URI
Go to Link
DOI
10.1016/j.chemosphere.2007.05.036
ISSN
0045-6535
Appears in Collections:
UEE_Journal Papers
Files in This Item:
2-s2.0-34548384771.pdf Download

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU