1. Carbon dioxide purity and combustion characteristics of oxy firing compared to air firing in a pilot-scale circulating fluidized bed
- Author
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Nguyen Hoang Khoi, Jae-Goo Lee, Sung-Ho Jo, Ho Won Ra, Ji-Hong Moon, Sung-Jin Park, Sang-Jun Yoon, Myung Won Seo, Tae-Young Mun, and Sung-Min Yoon
- Subjects
Flue gas ,Materials science ,business.industry ,020209 energy ,Mechanical Engineering ,Test rig ,Pilot scale ,02 engineering and technology ,Building and Construction ,Combustion ,Pollution ,Industrial and Manufacturing Engineering ,chemistry.chemical_compound ,General Energy ,020401 chemical engineering ,chemistry ,Carbon dioxide ,0202 electrical engineering, electronic engineering, information engineering ,Fluidized bed combustion ,0204 chemical engineering ,Electrical and Electronic Engineering ,Process engineering ,business ,Civil and Structural Engineering - Abstract
This study aims to optimize the oxy-circulating fluidized bed combustion (oxy-CFBC) process by reducing the amount of flue gas with high-purity carbon dioxide. To achieve this, the stable transition from air mode to oxy mode is tested and validated in a 0.1-MW oxy-CFBC test rig. The results prove that flue gas carbon dioxide separation can achieve 96 vol% (dry) through a stable transition from air mode to oxy mode. Moreover, flue gas production emitted in oxy mode is reduced to one fifth compared to air mode. The proven technologies and oxy-fuel combustion database from this test rig operating experience can be used as empirical operating parameters for the next steps such as demonstration and commercial-scale operation.
- Published
- 2019