Publication: Comparative analysis of biomass and coal based co-gasification processes with and without CO2 capture for HT-PEMFCs
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Issued Date
2019
Resource Type
File Type
application/pdf
ISSN
3603199
Other identifier(s)
2-s2.0-85052095885
Rights Holder(s)
Scopus
Bibliographic Citation
International Journal of Hydrogen Energy. (2019), p.2216-2229
Suggested Citation
Mongkolsiri P., Jitkeaw S., Patcharavorachot Y., Arpornwichanop A., Assabumrungrat S., Authayanun S. Comparative analysis of biomass and coal based co-gasification processes with and without CO2 capture for HT-PEMFCs. International Journal of Hydrogen Energy. (2019), p.2216-2229. doi:10.1016/j.ijhydene.2018.07.176 Retrieved from: https://hdl.handle.net/20.500.14740/5488
Abstract
With the seasonal availability and low energy density of biomass and the high environmental impact of coal, the co-gasification of biomass and coal is an alternative approach facilitating a trade-off between renewable and non-renewable resources. The aim of this study was to investigate hydrogen production from the co-gasification of biomass and coal integrated by means of the sorption-enhanced water gas shift reactor (G-SEWGS) for a high temperature proton exchange membrane fuel cell (HT-PEMFC). The effects of the gasifier temperature, the steam to fuel ratio (S/F ratio), and the equivalence ratio (ER) on the hydrogen production performance and environmental impact of the G-SEWGS were theoretically analysed and compared with the conventional gasifier integrated with the water gas shift reactor (G-WGS) and the sorption-enhanced gasifier integrated with the water gas shift reactor (SEG-WGS). As compared to the conventional water gas shift reactor, the addition of a CaO sorbent in the modified water gas shift reactor not only reduces the amount of the CO2 emission but also leads to an increase in the hydrogen concentration and hydrogen content. The G-SEWGS provides better performance in terms of its fuel processor efficiency and CO2 emission than the G-WGS and the SEG-WGS. Also, the problem of sulphur compound in the hydrogen-rich gas can be reduced by using of the sorption-enhanced water gas shift reactor (SEWGS). The best system exergy efficiency, which was around 22% for the power generation, was determined from the HT-PEMFC integrated with the G-SEWGS. The main exergy destruction of around 70% of the total loss was caused by hydrogen production processes. © 2018 Hydrogen Energy Publications LLC
Subject(s)
Biomass
Calcium oxide
Carbon dioxide
Chemical shift
Coal
Coal deposits
Coal industry
Economic and social effects
Environmental impact
Exergy
Gases
Gasification
Hydrogen production
Proton exchange membrane fuel cells (PEMFC)
Sorption
Sulfur compounds
Co-gasification
CO2 capture
Exergy Analysis
High temperature proton exchange membrane fuel cells
Hydrogen production performance
Hydrogen production process
Renewable and non-renewable resources
Sorption enhanced water gas shift
Water gas shift
Calcium oxide
Carbon dioxide
Chemical shift
Coal
Coal deposits
Coal industry
Economic and social effects
Environmental impact
Exergy
Gases
Gasification
Hydrogen production
Proton exchange membrane fuel cells (PEMFC)
Sorption
Sulfur compounds
Co-gasification
CO2 capture
Exergy Analysis
High temperature proton exchange membrane fuel cells
Hydrogen production performance
Hydrogen production process
Renewable and non-renewable resources
Sorption enhanced water gas shift
Water gas shift