- Title
- Combustion characteristics and air pollutant formation during oxy-fuel co-combustion of microalgae and lignite
- Creator
- Gao, Yuan; Tahmasebi, Arash; Dou, Jinxiao; Yu, Jianglong
- Relation
- Bioresource Technology Vol. 207, Issue May 2016, p. 276-284
- Publisher Link
- http://dx.doi.org/10.1016/j.biortech.2016.02.031
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2016
- Description
- Oxy-fuel combustion of solid fuels is seen as one of the key technologies for carbon capture to reduce greenhouse gas emissions. The combustion characteristics of lignite coal, Chlorella vulgaris microalgae, and their blends under O₂/N₂ and O₂/CO₂ conditions were studied using a Thermogravimetric Analyzer-Mass Spectroscopy (TG-MS). During co-combustion of blends, three distinct peaks were observed and were attributed to C. vulgaris volatiles combustion, combustion of lignite, and combustion of microalgae char. Activation energy during combustion was calculated using iso-conventional method. Increasing the microalgae content in the blend resulted in an increase in activation energy for the blends combustion. The emissions of S- and N-species during blend fuel combustion were also investigated. The addition of microalgae to lignite during air combustion resulted in lower CO₂, CO, and NO₂ yields but enhanced NO, COS, and SO₂ formation. During oxy-fuel co-combustion, the addition of microalgae to lignite enhanced the formation of gaseous species.
- Subject
- oxy-fuel combustion; lignite; microalgae; kinetics analysis; air pollutants
- Identifier
- http://hdl.handle.net/1959.13/1322656
- Identifier
- uon:24622
- Identifier
- ISSN:0960-8524
- Language
- eng
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