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Comparative techno-economic and energy analyses of integrated biorefinery processes of furfural and 5-hydroxymethylfurfural from biomass residue
(2023-04-01)
Wiranarongkorn, K.
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Im-orb, K.
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Patcharavorachot, Y.
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Maréchal, F.
;
Arpornwichanop, A.
For efficient feedstock and energy utilization, integrated biorefinery processes are applied to furfural production from bagasse to convert furfural residue into 5-hydroxymethylfurfural (HMF)—an important intermediate building block for the production of various biochemicals. Here, a techno-economic analysis of the integrated processes of furfural and HMF production combined with electricity generation under different scenarios was performed to identify the most suitable process design. Simulations revealed that using the whole bagasse in the biorefinery plant and recycling 50% waste from the HMF production to recover unreacted sugar (scenario 2) achieved the maximum furfural and HMF production with minimum CO<inf>2</inf> emission, compared with integrated processes without sugar recycling (scenario 1), with 80% (scenario 3) and 60% biomass (scenario 4) bypassed to the biorefinery, and with a standalone combined heat and power system (scenario 5). Moreover, heat integration improved the efficiency of biorefinery plant (scenario 2), with an energy recovery potential of 71%, leading to the maximum profit at 11% internal rate of return. However, the high operating cost associated with the requirement of solvents and catalysts for HMF production represents the largest cost distribution in the proposed integrated processes. Sensitivity analysis revealed that solvent cost was the most important parameter for economic benefit. In addition, improving technological efficiency in the pretreatment and HMF production phases can enhance product yield, thereby benefiting the profitability of this process.
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Performance analysis of direct steam reforming of methane in SOFC with SDC-based electrolyte
(2020-02-01)
Saebea, D.
;
Authayanun, S.
;
Patcharavorachot, Y.
This work aims to study on the performance of the SDC-based SOFC with a direct internal reforming of methane at lower temperature in the range of 600–750 ºC. The model of SDC-based SOFC with direct internal reforming mode is simulated and validated. The predicted results are in a good agreement with experimental data. The simulated results indicate that the molar flow rate of the hydrogen produced from the methane steam reforming reaction is higher as an increasing temperature. Moreover, the cathode activation overpotential is obviously reduced. Thus, the increase of temperature from 600 to 700 °C can enhance the average power density of SOFC from 0.19 to 0.42 A/m<sup>2</sup>.
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Performance Evaluation of Solid Oxide Fuel Cell Coupling to Biogas Tri-reforming with Installation of Hydrogen-Selective Membrane Separator
(2020-01-01)
Saebea, D.
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Soisuwan, S.
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Patcharavorachot, Y.
Due to high CO<inf>2</inf> composition in biogas, hydrogen concentration produced from the biogas reforming process is low, which has negative effect on the SOFC efficiency. Therefore, aims of this study are to improve and analyze the performance of solid oxide fuel cell (SOFC) integrated with hydrogen production from tri-reforming process of biogas coupling to hydrogen-selective membrane separator. The simulation results show that the increase of pressure increases the hydrogen separation in Pd/Ag membrane separator. The Pd/Ag membrane separator can separate hydrogen of 47.5 %, at 8 bar. When comparing the integrated system of SOFC and biogas tri-reforming without/with installing hydrogen-selective membrane separator, the efficiency of system with coupling to hydrogen-selective membrane separator is higher than that without coupling to hydrogen-selective membrane separator about 13-14.7 %.
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Biomass gasification of sugarcane leftover for green diesel production
(2018-01-01)
Chatrattanawet, N.
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Kanjanasorn, W.
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Authayanun, S.
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Saebea, D.
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Patcharavorachot, Y.
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SOFC running on steam reforming of biogas: External and internal reforming
(2016-01-01)
Authayanun, S.
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Pornjarungsak, T.
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Prukpraipadung, T.
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Saebea, D.
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Arpornwichanop, A.
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Performance evaluation of low-temperature solid oxide fuel cells with SDC-based electrolyte
(2016-01-01)
Saebea, P.
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Authayanun, S.
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Patcharavorachot, Y.
;
Arpornwichanop, A.
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Effects of SOFC exhaust gas recirculation on performance of solid oxide fuel cell-gas turbine hybrid system utilizing renewable fuels
(2015-01-01)
Saebea, D.
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Authayanun, S.
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Patcharavorachot, Y.
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Arpornwichanop, A.
The use of biogas and ethanol as fuels for solid oxide fuel cell-gas turbine (SOFC-GT) hybrid system needs an external steam reformer. As the operation of steam reformer and air preheater requires high external energy input, the efficient heat management of the SOFC system is necessary. Thus, the aim of this study is to analyze the recycling of the SOFC exhaust gas in a SOFC-GT hybrid system utilizing fuels such as ethanol and biogas. The effect of the recirculation ratio of the anode exhaust gas on the performance, the SOFC efficiency, the turbine to SOFC power ratio, and the overall efficiency of hybrid system was first investigated. Additionally, the recirculation of both anode and cathode exhaust gases in the SOFC-GT hybrid system was studied.
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Simulation of hydrogen production with in situ CO2 removal using ASPEN PLUS
(2014-01-01)
Patcharavorachot, Y.
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Likkasith, C.
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Piemnernkoom, N.
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Saebea, D.
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Arpornwichanop, A.
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Enhancement of hydrogen production for steam reforming of biogas in fluidized bed membrane reactor
(2014-01-01)
Saebea, D.
;
Authayanun, S.
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Patcharavorachot, Y.
;
Arpornwichanop, A.
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Hydrogen production from glycerol supercritical water reforming with CO2 absorption unit
(2014-01-01)
Patcharavorachot, Y.
;
Authayanun, S.
;
Arpornwichanop, A.

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