Patcharavorachot, Yaneeporn

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

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    Exergy and exergoeconomic assessment of sustainable light olefins production from an integrated methanol synthesis and methanol-to-olefins system
    (2022-05-01)
    Detchusananard, Thanaphorn
    ;
    Prasertcharoensuk, Phuet
    ;
    Patcharavorachot, Yaneeporn
    ;
    Maréchal, François
    ;
    Arpornwichanop, Amornchai
    Integrated methanol synthesis and methanol-to-olefins systems are considered attractive and promising technologies to produce light olefins from syngas derived from biomass feedstock. In this study, a flowsheet model of a proposed system was developed and employed for system design and analysis. The system consists of four main parts: methanol synthesis, methanol-to-olefins process, olefins separation, and power plant. The effects of important operating parameters on the exergy efficiency were investigated to determine the optimal operating conditions to achieve the maximum exergy efficiency of this system. The results indicate that the methanol synthesis process should be operated at temperature, pressure, and recycling ratio of 250 °C, 150 bar, and 0.85, respectively, whereas the methanol-to-olefins process should be operated at a temperature of 480 °C and the power plant should be run at steam temperature and steam pressure of 650 °C and 50 bar, respectively. Heat integration based on a pinch analysis was subsequently performed to improve the system energy usage, resulting in a 9.29% increase in the exergy efficiency of the integrated system. An exergoeconomic analysis of the integrated system with the designed heat exchanger network was performed. The results show that the power plant has the highest cost rate of exergy destruction and total cost rate. Moreover, the syngas feedstock cost has the greatest impact on the exergoeconomic indicators; it is necessary to minimize this cost to achieve economic viability of the process for industrial use. The production of light olefins from the integrated methanol synthesis and methanol-to-olefins system using a renewable syngas feedstock has a potential to reduce greenhouse gas emissions due to the use of renewable sources replacing fossil sources.
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    Operational Analysis of a Proton-Conducting Solid Oxide Electrolysis Cell for Synthetic Fuel Production
    (2021-01-01)
    Bhichaiphab, Jinjutha
    ;
    Saebea, Dang
    ;
    Arpornwichanop, Amornchai
    ;
    Patcharavorachot, Yaneeporn
    Methane and methanol as synthetic fuels can be produced from synthesis gas or syngas. A proton-conducting solid oxide electrolysis cell (H-SOEC) becomes a promising technology that can produce syngas from the co-electrolysis of steam and CO<inf>2</inf>. In this work, the synthetic fuel production from syngas produced by a H-SOEC was modelled and simulated through Aspen Plus simulation software. The composition of syngas and synthetic fuel were calculated by using the minimization of Gibbs free energy. Firstly, the steam to CO<inf>2</inf> (S/C) molar ratio in feed was determined to satisty the suitable stoichiometric number of each fuel. Further, the H-SOEC operating temperature was optimized. The simulation showed that at operation of H-SOEC as 650 °C and 1 atm, the optimal S/C molar ratio for methane and methanol productions is 4.69 and 3.52, respectively. Then, the effect of operation in fuel production was examined. The results indicated that methane flowrate of 0.2 kmol/h can be provided when reactor operates at 250 °C and 3 atm. For methanol production, 0.13 kmol/h of methanol can be generated at reactor operation as 250 °C and 80 atm. In addition, it was found that the methane production does not release CO and CO<inf>2</inf> to nature. Therefore, it can be concluded that the integrated system of H-SOEC and methane production is more attractive feature.
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    Methanation Process for Methane Synthesis from Waste Gas: Process Simulation
    (2022-01-01)
    Saebea, Dang
    ;
    Chatrattanawet, Narissara
    ;
    Soisuwan, Soipatta
    ;
    Arpornwichanop, Amornchai
    ;
    Patcharavorachot, Yaneeporn
    Waste gas from the fermentation of bioethanol production consists of high carbon dioxide concentration. The CO<inf>2</inf> emissions cause global climate change. The conversion of carbon dioxide to chemical products or fuels is an interesting solution for reducing the amount of carbon dioxide emissions. The methane synthesis via carbon dioxide methanation reaction has attracted much attention. The suitable operation of the methanation process for methane synthesis from waste gases should be studied. This work aims to investigate the methane production from the waste gas of the fermentation process. The composition of impurities in waste gases on the performance of the methanation process is investigated. The effects of hydrogen to carbon dioxide ratio and operating temperature on the carbon dioxide conversion and methane yield of the methanation are also studied. The simulation results from the thermodynamic analysis show that the methane yield of the methanation from waste gases is 3.11 - 4.61 % higher than that from pure carbon dioxide in the temperature range of 300 - 500 °C. The methane yield of the methanation process decreases with increasing temperature. The increase in the hydrogen to carbon dioxide ratio of 1 to 4 and the operating pressure of 1 to 8 bar have a significant effect on the enhancement of carbon dioxide conversion and methane yield.
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    Corrigendum to “Process design and muti-objective optimization of solid waste/biomass co-gasification considering tar formation” [Journal of the Taiwan Institute of Chemical Engineers 164 (2024) 105688](S1876107024003468)(10.1016/j.jtice.2024.105688)
    (2025-03-01)
    Aentung, Tanawat
    ;
    Wu, Wei
    ;
    Patcharavorachot, Yaneeporn
    The authors regret to correct the title of the article as ‘Process design and multi-objective optimization of solid waste/biomass co-gasification considering tar formation’. The authors would like to apologise for any inconvenience caused.
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    Energetic, economic, and environmental perspectives on systematic design and energy management of a power-to-methane system integrated with power cycle
    (2025-12-01)
    Saebea, Dang
    ;
    Arpornwichanop, Amornchai
    ;
    Patcharavorachot, Yaneeporn
    The methanation process transforms CO<inf>2</inf> into green methane by combining it with hydrogen from solid oxide electrolysis cells (SOECs). Efficient energy management of the integrated system, along with effective heat utilization from methanation for power generation, enhances system efficiency. This study compares four configurations of a system incorporating SOECs, methanation, and the Rankine cycle, focusing on energetic, economic, and environmental performance. The impact of gas recycling in the adiabatic methanator on system performance was also investigated. Key findings reveal that incorporating a water separation unit and increasing the gas recycle ratio significantly improve methane yield and CO<inf>2</inf> utilization. Systems with water removal through heat integration achieve overall efficiencies of 50.17 to 52.27%. The levelized product cost of the system with water removal is lower, ranging from 195.27 to 223.05 $/MWh, and it produces the lowest CO<inf>2</inf> emission intensity at 119.91 kgCO<inf>2</inf> per MWhCH<inf>4</inf>.
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    Liquid fuel production from waste tires and water hyacinth: A comparative study of Co-pyrolysis and Co-gasification with Fischer-Tropsch integration
    (2025-06-01)
    Aentung, Tanawat
    ;
    Thongchawee, Anutida
    ;
    Patcharavorachot, Yaneeporn
    This study investigates the sustainable conversion of waste tires (WT) and water hyacinth (WH) into liquid fuel using two thermochemical approaches: co-pyrolysis (direct method) and co-gasification integrated with Fischer-Tropsch (FT) process (indirect method). Aspen Plus software was employed to determine optimal operating conditions for maximizing fuel yield. The direct method achieved 6649.22 gallons of fuel per day at 400 °C with a WT/WH ratio of 75/25. In comparison, the indirect method, operating at 800 °C with a WT/WH ratio of 50/50, produced 115.92 kmol/h of syngas, which was subsequently converted into 8817.15 gallons of liquid fuel per day via the FT process. An economic analysis revealed that the indirect method offered higher fuel yields and better cost-effectiveness, with a capital investment approximately 5 million U.S. dollars lower than the direct method. These findings highlight the potential of integrating waste-derived feedstocks for efficient and sustainable liquid fuel production.
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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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    Performance assessment of a 10 kW pressurized solid oxide fuel cell integrated with glycerol supercritical water reforming
    (2022-08-01)
    Patcharavorachot, Yaneeporn
    ;
    Chatrattanawet, Narissara
    ;
    Saebea, Dang
    ;
    Arpornwichanop, Amornchai
    In this work, the integrated system of pressurized solid oxide fuel cell (SOFC) and supercritical water reforming of glycerol was proposed. The syngas from the reforming process has high temperature and pressure and thus, it can be used as fuel for the SOFC. The performance of an integrated system was determined through the Aspen Plus simulator in which the electrochemical equations were also included. The developed model was employed to examine the performance of the integrated system with respect to the wider ranges of operation of the reformer and SOFC. In this work, the desired power output of an SOFC stack is set as 10 kW and thus, the area of an SOFC is determined. A smaller area is required as it normally leads to a lower fabrication cost for the SOFC. The simulation results revealed that the smallest SOFC area can be provided when the reformer is operated at 800°C and 240 atm with a ratio of supercritical water to glycerol as 50 whereas the SOFC operation is at 900°C and 4 atm with the current density as 7000 A/m<sup>2</sup>. Under these operating conditions, the integrated system can provide the cell voltage, required area, fuel utilization, and SOFC efficiency as 1 V, 1.42 m<sup>2</sup>, 75% and 61%, respectively. From the exergy analysis, it was found that the compressor, heater, and turbine are the highest exergy destruction units whereas the reformer has the lowest exergy destruction, followed by the SOFC stack.
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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.
    ;
    Im-orb, K.
    ;
    Patcharavorachot, Y.
    ;
    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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    Gasification of plastic waste for synthesis gas production
    (2020-02-01)
    Saebea, Dang
    ;
    Ruengrit, Pornnapat
    ;
    Arpornwichanop, Amornchai
    ;
    Patcharavorachot, Yaneeporn
    This work presents the synthesis gas production from gasification of plastic waste, i.e. polyethylene (PE) and polypropylene (PP). The steam gasification is modeled by using AspenPlus<sup>TM</sup> simulation software. The effects of gasifier temperature and steam to feed (S/F) mass ratio were examined to determine the suitable synthesis gas mole flow rate. The simulation results showed that gasifier should be operated at 900 °C with optimal S/F mass ratio as 1.5. Considering the influence of PE/PP mass ratio, the results indicated that the PE/PP mass ratio of 100/0 or pure PE can provide the maximum synthesis gas flow rate of 21 kmol/hr and H<inf>2</inf>/CO ratio of 2.1.