Patcharavorachot, Yaneeporn

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Patcharavorachot, Yaneeporn
Alternative Name
Patcharavorachot, Y.
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Email
yaneeporn.pa@kmitl.ac.th

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    Optimization of a membrane-based oxidative coupling of methane reactor using surface response methodology
    (2013-01-01)
    Patcharavorachot, Yaneeporn
    ;
    Tiraset, Sirikarn
    ;
    Saebea, Dang
    ;
    Paengjuntuek, Woranee
    ;
    Arpornwichanop, Amornchai
    An oxidative coupling of methane (OCM) is a promising process to convert methane into ethylene and ethane; however, it suffers from the relatively low selectivity and yield of ethylene at high methane conversion. In this study, a membrane reactor is applied to the OCM process in order to prevent the deep oxidation of a desirable ethylene product. First, simulations of the OCM reactor based on mass and energy balances coupled with detailed OCM kinetic model are performed and effects of key operating parameters, such as temperature, methane-to-oxygen feed ratio and methane flow rate, on the OCM reactor performance in terms of CH<inf>4</inf> conversion, C<inf>2</inf> selectivity and yield are analyzed. To determine its optimal operating conditions, an optimization of the OCM membrane reactor using a surface response methodology is carried out in the second part. The central composite design (CCD) is used to study the interaction of process variables (i.e., temperature, feed flowrate and CH<inf>4</inf>/O<inf>2</inf> ratio) and to find the optimum process operation to maximize the C<inf>2</inf> products yield. © 2013, AIDIC Servizi S.r.l.
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    Biomass gasification of sugarcane leftover for green diesel production
    (2018-01-01)
    Chatrattanawet, N.
    ;
    Kanjanasorn, W.
    ;
    Authayanun, S.
    ;
    Saebea, D.
    ;
    Patcharavorachot, Y.
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    Thermodynamic analysis of hydrogen production from the adsorption-enhanced steam reforming of biogas
    (2014-01-01)
    Saebea, Dang
    ;
    Authayanun, Suthida
    ;
    Patcharavorachot, Yaneeporn
    ;
    Arpornwichanop, Amornchai
    Biogas is considered a potential, renewable fuel to be used as a hydrogen source. At present, a steam reforming is widely used process in hydrogen production, but it needs to be operated at high temperature to achieve high hydrogen yield. Because biogas consists of mostly CO<inf>2</inf>, the hydrogen purification of a reformate gas obtained is another important issue, especially for fuel cell applications. In this study, an enhanced-adsorption steam reforming process in which steam reforming reaction and CO<inf>2</inf> adsorption are occurred in a single unit is investigated. A thermodynamic analysis is performed to study effects of important operating parameters on hydrogen yield and product distribution. It is found that a biogas processor should be operated at high temperatures and inlet steam-T o-methane ratio. The content of CO in the reformate gas increases with increased operating temperature. The steam reforming of biogas coupled with a CO<inf>2</inf> adsorption gives a higher hydrogen product with considerable low CO content, compared to the conventional steam reforming of biogas.
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    Performance Analysis of Biomass Gasification with Biogas Co-Feeding for Hydrogen Production
    (2025-01-01)
    Saebea, Dang
    ;
    Patcharavorachot, Yaneeporn
    To improve the hydrogen yield in biomass gasification, the addition of biogas for co-feeding with biomass in gasification was proposed in this work. The gasification model developed in Aspen Plus software was validated with experimental data. The performance of biomass gasification with biogas co-feeding using steam as a gasifying agent was investigated. The effect of the steam-to-fuel ratio on the gasification of mixed biomass and biogas was studied. The results show that the simulation results of biomass gasification were consistent with experimental data. Biomass gasification with biogas co-feeding can raise the amount of hydrogen and carbon monoxide in gas products by 22.12% and 18.44%, respectively. Moreover, the increase in the steam-to-fuel ratio enhances hydrogen in syngas. However, the system efficiency decreases with increasing steam-to-fuel ratio.
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    Design of energy recuperation in a solid oxide fuel cell-gas turbine hybrid system with ethanol as fuel
    (2013-01-01)
    Saebea, D.
    ;
    Patcharavorachot, Y.
    ;
    Authayanun, S.
    ;
    Arpornwichanop, A.
    An ethanol reforming and solid oxide fuel cell-gas turbine (SOFC-GT) hybrid system with anode and/or cathode recirculation is investigated in this study. The aim is to analyze the effect of the anode and cathode recirculation on the performance of SOFC-GT system. The results showed that the hybrid system with both the cathode and anode recirculation achieve the highest system efficiency.
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    Integrated System of Solid Oxide Fuel Cell and Ethanol Partial Oxidation: Process Simulation and Heat Exchanger Network
    (2024-01-01)
    Saebea, Dang
    ;
    Thanomjit, Chollaphan
    ;
    Arpornwichanop, Amornchai
    ;
    Patcharavorachot, Yaneeporn
    A solid oxide fuel cell (SOFC) fueled by reformate obtained from an ethanol partial oxidation (POX) was investigated regarding electrical and the thermal performances. Performance analysis was performed through Aspen Plus simulator. Gas compositions obtained from POX and SOFC were computed through the Gibbs free energy minimization method. Three voltage losses that include activation, ohmic and concentration losses was considered in an electrochemical model. Effects of operating parameters in both POX and SOFC on performance of SOFC-POX system were examined. From the simulation results, it was found that the suitable condition of POX was at the reformer temperature of 700 ℃ and oxygen to ethanol molar ratio of 0.1. While, the operating temperature of SOFC should be 900 ℃. Under these operating conditions, the maximum electrical and thermal efficiencies of 67.24% and 25.77%, respectively, can be achieved. Finally, the heat integration of the SOFC-POX system was considered using pinch analysis. The minimum cold utility is 88.1 kW while the hot utility is no need for this system.
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    SOFC running on steam reforming of biogas: External and internal reforming
    (2016-01-01)
    Authayanun, S.
    ;
    Pornjarungsak, T.
    ;
    Prukpraipadung, T.
    ;
    Saebea, D.
    ;
    Arpornwichanop, A.