Gasification performance of Spirulina microalgae – A thermodynamic study with tar formation

•A novel microalgae (Spirulina) biomass gasification process is investigated.•The process performance was studied with various char, O2 and steam flows.•Tar can be completely gasified by adjusting the gasifying agents (O2/steam)•The introduction of optimization zone enhances concentrations of CO and...

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Bibliographic Details
Published in:Fuel (Guildford) 2019-04, Vol.241, p.372-381
Main Authors: Adnan, Muflih A., Xiong, Qingang, Hidayat, Arif, Hossain, Mohammad M.
Format: Article
Language:English
Subjects:
Algae
Biomass gasification
Cold gas
Configurations
Equivalence ratio
Gasification
Injection
Microalgae
Optimization
Performance evaluation
Pyrolysis
Spirulina
Spirulina microalgae
Steam
Synthesis gas
Tar
Tar formation
Thermodynamic analysis
Thermodynamic models
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Summary:•A novel microalgae (Spirulina) biomass gasification process is investigated.•The process performance was studied with various char, O2 and steam flows.•Tar can be completely gasified by adjusting the gasifying agents (O2/steam)•The introduction of optimization zone enhances concentrations of CO and H2. In this work, the performance of a novel configuration for Spirulina microalgae gasification was investigated through an improved thermodynamic model using Aspen Plus. Compared with existing thermodynamic models, tar formation is included in the improved counterpart. The proposed novel gasification process consists of four primary zones: (i) pyrolysis, (ii) combustion, (iii) gasification, and (iv) optimization. First, the modeling results were compared against experimental values, where a good agreement (relative error 
ISSN:0016-2361
1873-7153
DOI:10.1016/j.fuel.2018.12.061