Yonsei University · Engineering
Professor Hang Seok Choi's research lab specializes in sustainable energy and environmental technologies, with a primary focus on advanced catalytic processes for clean fuel production and carbon capture. The lab develops innovative methods for oxidative desulfurization of heavy and waste-derived fuels, such as waste tire pyrolysis oil, using tailored solid acid catalysts to meet stringent environmental standards. It also investigates biomass pyrolysis for high-quality bio-oil production and explores CO2 capture and geological storage to mitigate climate change. The lab integrates experimental studies with computational fluid dynamics to optimize reactor design and reaction conditions for improved efficiency and sustainability.
Figures are computed from collected data and may differ slightly.
The production of green fuel oil is of the utmost importance for maintaining a healthy life and environment in the current world. Effective and complete removal of sulfur refractory compounds (such as 4,6-dimethyldibenzothiophene and other alkyl-substituted thiophene derivatives) from fuel oil is essential to meet the new requirements of sulfur standards. Several techniques have been proposed for desulfurization of fuel oil, such as hydrodesulfurization (HDS), selective adsorption, extractive di
The increasing global population and the rapid industrial development associated therewith have increased the demand for fossil-derived fuel oils. The sources of fossil fuels are limited, and many studies have been being conducted to find alternative fuel sources. Waste tire pyrolysis oil (WTPO) attracts considerable attention as an alternative fuel because its properties are similar to those of diesel oil. However, WTPO has a high sulfur content of >1.0 wt%, which is above the environmental
Abstract Fast pyrolysis experiments of larch sawdust were conducted in a conical spouted‐bed reactor to study the influences of reaction temperature, inlet gas velocity, feeding rate, and particle size on the product yield and pyrolysis oil quality. For the first time, the optimal conditions were determined for various pyrolysis operations of such reactor to increase the yield and quality of pyrolysis oil. The results demonstrate that the biomass particle size, reaction temperature, biomass feed
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