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Energy analysis and life cycle assessment of furfural and 5-hydroxymethylfurfural integrated biorefinery processes with heat pump-assisted reactive distillation
(2025-03-15)
Wiranarongkorn, Kunlanan
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Im-Orb, Karittha
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Saebea, Dang
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Patcharavorachot, Yaneeporn
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Arpornwichanop, Amornchai
Bio-based products, such as biochemicals and bioenergy, have received considerable attention in efforts to mitigate the effects of climate change. In this study, an integrated biorefinery process for the production of furfural and 5-hydroxymethylfurfural (HMF) using sugarcane bagasse is proposed. Three process scenarios were compared: the integrated process of HMF and furfural production using (i) conventional reactive distillation (RD), (2) heat pump-assisted RD, and (3) heat pump-assisted RD with heat integration. The comparison focused on energy efficiency and life cycle analysis. The simulation results revealed that the overall energy efficiency of the proposed process could increase by 14.5 % with the additional heat pump to the RD column at a pressure ratio of 1.4 due to a reduction of external energy consumption. This improvement reduced the environmental impact of natural gas combustion for utility production. Specifically, the global warming potential of processes involving heat pump-assisted RD without and with heat integration decreased by 16.66 % and 80.08 %, respectively, compared to conventional RD. These results indicate that incorporating heat pump-assisted RD and implementing effective heat management within the integrated biorefinery process significantly decreased external energy consumption, leading to substantial environmental benefits.
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Effect of tray drying temperature and drying time on properties of cricket powder
(2025-01-23)
Simasatitkul, Lida
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Thongprom, Kittisak
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Jaroensang, Thunyapisit
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Im-Orb, Karittha
This research studied the production of cricket powder via tray drying and powdering processes by investigating the effect of drying temperature of 80, 90, 100oC and drying time ranging of 30 - 240 min on the properties of cricket powder. The drying rate increased while the moisture content decreased as drying temperature and drying time increased causing it easy to be ground and had good solubility. The cricket powder had dark brown color and its lightness decreased with increasing drying temperature. The produced cricket powder could reach equilibrium moisture content of approximately 5% and the water activity was decreased with increasing drying temperature. Regarding the nutrient content, the change in drying temperature in a range of 80-100oC had no significant effect on the nutrient content. The suitable drying condition of crickets offering the highest protein content of 70.35% was achieved at drying temperature of 80oC and drying time of 240 min. At this condition, 55.57% yield of cricket powder satisfying dry food specification (moisture content of 5.32% and aw of 0.3539) was obtained.
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Sustainable Production of Biomethanol and Its Environmental Impacts
(2025-01-01)
Detchusananard, Thanaphorn
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Im-Orb, Karittha
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Wiranarongkorn, Kunlanan
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Chen, Yong Song
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Arpornwichanop, Amornchai
Utilizing biomass and biogas sourced from various organic waste materials as renewable feedstocks for biomethanol production offers a sustainable alternative to fossil fuels such as coal, petroleum oil, and natural gas. This chapter provides an exploration of several technologies employed in biomethanol production, including biomass gasification, biomass pyrolysis, and biogas upgrading. Syngas production and conditioning, methanol synthesis and separation, and integrating systems with other renewable energy sources are found to be crucial stages towards achieving sustainable production. The chapter comprehensively evaluates the technical, economic, and environmental aspects of each biomethanol production process. Furthermore, it delves into ongoing efforts to improve and develop biomethanol-production processes to achieve the carbon neutrality goals. The chapter also outlines emerging trends and future research directions in the field of biomethanol production.
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Production of bio-dimethyl ether from oil palm residue via integrated gasification and direct DME synthesis process
(2023-09-12)
Im-Orb, Karittha
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Arpornwichanop, Amornchai
The production of bio-dimethyl ether via an integration of biomass gasification and direct DME synthesis (IBG-DME) was studied. The oil palm residue was a considered feedstock. The parametric analysis was done to examine the impact of gasifying temperature on the product composition, energy demand of each unit and overall process using the developed Aspen plus model. The high gasifying temperature offered high production rate of valuable products (bio-DME and bio-methanol), and low CO2 emission. The IBG-DME process could operate at thermal self-sufficient condition when gasifying temperature was maintained at 882 °C. The maximum yield of bio-DME of 0.3472 kg.h-1 could be achieved at gasifying temperature of 950 °C. At this condition, the CO2 emission, overall energy consumption and energy efficiency were 0.7457 kg.h-1, 0.00776 kW and 59.76 %, respectively.
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Performance Analysis of Integral Process of Bio-Oil Production, Bio-Oil Upgrading, and Hydrogen Production from Sewage Sludge
(2023-09-14)
Simasatitkul, Lida
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Lakkhanasombut, Apiwat
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Morin, Worawit
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Jedsadajerm, Supachai
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Amornraksa, Suksun
This research investigated the production of bio-oil through the hydrothermal liquefaction (HTL) process using sewage sludge from wastewater, along with the hydrotreating of the bio-oil. The simulation process began with a wastewater flow rate of 460 tonnes/day, where the feedstock was divided into two streams. The first stream underwent the HTL process, while the other was directed towards hydrogen production. The resulting products included gaseous products, crude bio-oil, and heavy liquid. The crude bio-oil was further upgraded by introducing hydrogen, which was obtained through gasification and purified by gas separation using a palladium membrane. The primary product mainly comprised alkane, with a carbon content of 85.89% and hydrogen content of 14.11%. For the purification of gasoline, kerosene, diesel, and fuel oil, a fractionation distillation tower arrangement was designed. In addition, Additionally, the gaseous products underwent fractionation distillation to obtain 98% nitrogen and 99.9% liquid carbon dioxide. Considering the carbon footprint, it was observed that the bio-oil production process resulted in the highest greenhouse gas (GHG) emissions.
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Process Analysis of Integrated Biomass Gasification and Solid Oxide Electrolysis Cell (SOEC) for Syngas Production
(2023-01-01)
Detchusananard, Thanaphorn
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Wiranarongkorn, Kunlanan
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Im-Orb, Karittha
The integrated biomass gasification and SOEC process (IBG-SOEC), which O2 from SOEC was used as gasifying agent while the separated H2 could be used for H2/CO adjustment or sell as a valuable byproduct, was studied to find the sustainable syngas production process. The model of IBG-SOEC was developed in Aspen Plus. The parametric analysis was performed to investigate the effect of operating conditions of SOEC (i.e., cell temperature and number of cells) on the overall process performance. For energy performance, the total energy demand decreased as cell temperature increased while increased with number of cells. The changes in cell temperature had no effect on the yield and composition of syngas from gasifier. The maximum yield of syngas, with H2/CO of 0.96, of 1.9 kmol/h was achieved at cell temperature of 790°C and number of cells of 600. At this condition, the overall efficiency of IBG-SOEC of 63 % was achieved and H2 byproduct of 1 kmol/h could obtained from SOEC.
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Process analysis of an integrated gasification and methanol synthesis process for bio-methanol production from untreated and torrefied biomass
(2021-01-01)
Im-Orb, Karittha
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Arpornwichanop, Amornchai
The integrated biomass gasification and methanol synthesis process is investigated in this study. The different types of biomass i.e., the untreated and torrefied biomass at 250 oC (TB250) and torrefied biomass at 300 oC (TB300) are considered feedstock. The influence of torrefying temperature on the yield and composition of raw syngas derived gasifier is investigated. The biomass processed torrefaction leads to an increase in syngas and methanol yields. Moreover, the bio-methanol production process using torrefied biomass releases lower amount of CO2 than the raw one. An energy analysis is also performed using overall energy consumption and cold gas efficiency (CGE) of the integrated process as the indicators. The TB300 offers better performance in methanol production and CO2 emission. However, it requires high energy for methanol synthesis unit and offers low CGE.
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Design and evaluation of the sorption enhanced steam reforming and solid oxide fuel cell integrated system with anode exhaust gas recirculation for combined heat and power generation
(2017-01-01)
Wiranarongkorn, Kunlanan
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Im-Orb, Karittha
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Ponpesh, Pimporn
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Patcharavorachot, Yaneeporn
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Arpornwichanop, Amornchai
Solid oxide fuel cell (SOFC) is an electrochemical device for power generation with high efficiency and low environmental impact. Due to a high-temperature operation of SOFC, useful heat can be recovered to enhance its system efficiency. Regarding the environmental concern, bio-oil, the renewable liquid fuel, can be applied to SOFC system. In this study, the SOFC integrated with a steam reforming of bio-oil is considered. A sorption enhanced reforming process is studied for the production of high purity hydrogen for SOFC, and the anode gas recirculation in the SOFC system is proposed for the system improvement. Modeling of such an integrated process is performed using Aspen Plus simulator. As heat and power are generated from the SOFC system, the effect of key design parameters; fuel utilization and recirculation ratio of the anode gas, on a heatto-power ratio is analyzed. The system performance regarding to the electrical and thermal efficiencies is also evaluated. The results show that increasing the anode recirculation ratio increases the combined heat and power (CHP) performance, but increasing the fuel utilization decreases the thermal efficiency. It is also found that the appropriate range of heat-to-power ratio of the system varies from 0.24 to 0.89.

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