Calcium looping for CO2 capture at a constant high temperature

Yin, Junjun, Qin, Changlei, Feng, Bo, Ge, Lei, Luo, Cong, Liu, Wenqiang and An, Hui (2014). Calcium looping for CO2 capture at a constant high temperature. In: Special Issue: 4th (2013) Sino-Australian Symposium on Advanced Coal and Biomass Utilisation Technologie. 4th (2013) Sino-Australian Symposium on Advanced Coal and Biomass Utilisation Technologie, Wuhan, China, (307-318). 9 - 11 December 2013. doi:10.1021/ef401399c


Author Yin, Junjun
Qin, Changlei
Feng, Bo
Ge, Lei
Luo, Cong
Liu, Wenqiang
An, Hui
Title of paper Calcium looping for CO2 capture at a constant high temperature
Conference name 4th (2013) Sino-Australian Symposium on Advanced Coal and Biomass Utilisation Technologie
Conference location Wuhan, China
Conference dates 9 - 11 December 2013
Proceedings title Special Issue: 4th (2013) Sino-Australian Symposium on Advanced Coal and Biomass Utilisation Technologie   Check publisher's open access policy
Journal name Energy and Fuels   Check publisher's open access policy
Place of Publication Washington, DC United States
Publisher American Chemical Society
Publication Year 2014
Year available 2013
Sub-type Fully published paper
DOI 10.1021/ef401399c
Open Access Status
ISSN 0887-0624
1520-5029
Volume 28
Issue 1
Start page 307
End page 318
Total pages 12
Language eng
Abstract/Summary A calcium looping process using calcium-oxide-based sorbent for CO 2 capture was demonstrated to operate at a constant high temperature in this work. First the operating temperature window of the process was determined by investigating the quasi-equilibrium and kinetics of carbonation/calcination of synthetic CaO-based sorbents. The results indicate that the process would be suitable to operate within 750-840 C when the CO 2 concentration is higher than 15%. Subsequently, the process was demonstrated in a lab-scale fixed-bed reactor in 20% CO2 (N 2 balance) by examining the temperature variations in the synthetic CaO-based sorbent particles. The effects of operating variables (such as operating temperature, switching time, and sample type) on the cyclic temperature variation were investigated. It was observed that the process operated in a highly stable manner over 100 cycles at 770 C with the switching time of 1 min in both carbonation and calcination modes. The cost of calcium looping could be reduced significantly by operating at a constant high temperature.
Subjects 1500 Chemical Engineering
2102 Curatorial and Related Studies
2103 Historical Studies
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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