Simultaneous NO/SO removal by coconut shell char/CaO from calcium looping in a fluidized bed reactor
Korean Journal of Chemical Engineering, ISSN: 1975-7220, Vol: 37, Issue: 4, Page: 688-697
2020
- 15Citations
- 23Captures
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Article Description
A simultaneous NO/SO removal system using bio-char and CaO combined with calcium looping process for CO capture was proposed. The simultaneous NO/SO removal performance of coconut shell char/CaO experienced CO capture cycles was investigated in a fluidized bed reactor. The effects of reaction temperature, mass ratio of CaO to coconut shell coke, CaO particle size and number of CO capture cycles from calcium looping process were discussed. The NO removal efficiency of char is improved under the catalysis of CaO. The reaction temperature plays an important role in the simultaneous NO/SO removal. Coconut shell char/CaO achieve the highest NO and SO removal efficiencies at 825 oC, which are 98% and 100%, respectively. The mass ratio of CaO to coconut shell char of 60: 100 is a good choice for the simultaneous NO/SO removal. Smaller CaO particle size contributes to higher NO and SO removal efficiencies of coconut shell char/CaO. The NO and SO removal efficiencies of coconut shell char and cycled CaO from calcium looping declined slightly with the number of CO capture cycles. In addition, the Ca-based materials balance in process of simultaneous NOx/SO removal combined with calcium looping is given. The novel simultaneous NO/SO removal method using bio-char and cycled CaO from calcium looping process appears promising.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85083062006&origin=inward; http://dx.doi.org/10.1007/s11814-020-0483-8; http://link.springer.com/10.1007/s11814-020-0483-8; http://link.springer.com/content/pdf/10.1007/s11814-020-0483-8.pdf; http://link.springer.com/article/10.1007/s11814-020-0483-8/fulltext.html; https://dx.doi.org/10.1007/s11814-020-0483-8; https://link.springer.com/article/10.1007/s11814-020-0483-8
Springer Science and Business Media LLC
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