Imorb, Karittha
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Imorb, Karittha
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Im-orb, Karittha
Im-Orb, Karittha
Im-orb, K.
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karittha.im@kmitl.ac.th
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Item type:Publication, Process and sustainability analyses of the integrated biomass pyrolysis, gasification, and methanol synthesis process for methanol production(2020-02-15); Arpornwichanop, AmornchaiTechnical and sustainability analyses of the methanol production via the integrated biomass pyrolysis, gasification, and methanol synthesis (IBPGM) process using rice straw as feedstock, are performed. The utilization of emitted CO<inf>2</inf> by recycling to a gasifier as a gasifying agent is investigated for technical and environmental reasons. The effects of CO<inf>2</inf> recirculation on the product distribution and energy consumption of the IBPGM process are examined. The production rate of methanol is improved with the increased CO<inf>2</inf> recycle fraction, while that of bio-oil does not change. The IBPGM is a highly exothermic process, with the largest energy-releasing unit being the methanol reactor. The energy consumption at the gasifier exhibits the same trend and thermal self-sufficiency is consequently achieved when the recycle fraction is raised to 0.76. Environmental assessment using a life cycle analysis tool reveals that the energy management of methanol synthesis unit and syngas processor needs to be improved as they highly contribute toward the carbon footprint and potential environmental impact. The technical and environmental factors of the IBPGM process are evaluated by the analysis hierarchy process, calculated by a multi-criteria decision analysis method. The IBPGM process with the CO<inf>2</inf> recycle fraction of 0.2 offers the best performance. Under this condition, the methanol and bio-oil production rates of 0.23 and 0.09 kmol h<sup>−1</sup>, respectively, and the energy efficiency of 60.7% can be achieved, based on the biomass feed rate of 1 kmol h<sup>−1</sup>. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Sustainable Production of Biomethanol and Its Environmental Impacts(2025-01-01);