Comprehensive analysis of syngas-derived Fischer-Tropsch synthesis using iron-based catalysts with varied acidities

초록

Fischer-Tropsch synthesis (FTS) is currently garnering significant attention owing to its ability to utilize syngas derived from diverse feedstocks. With the increasing emphasis on achieving net -zero emissions and utilization of alternative sources, determining which syngas production methods to integrate with the FTS process has become crucial. This study analyzed various syngas production methods (natural gas, coal, biomass, and CO2/H2-based technologies) and their potential combinations with iron -based low -temperature FTS from both economic and environmental perspectives. Our FTS catalyst enables to control product distribution through acidity variation. Therefore, 25 extensive analyzes were performed with different types of syngas production method and final products. As a result, the reverse water-gas-shift reaction using CO2 and H2 showed the greatest potential to reduce CO2 emissions, and combined reforming showed an appropriate environmental and economic balance, showing the best performance among the evaluations conducted in this study. Wax production by LT-FTS, which consumes the least energy, is advantageous regardless of the syngas production method in the unified process standard. Furthermore, we provide the operating strategy of the proposed syngas-derived LT-FTS process considering both the environment and economics. This analysis indicated the potential developmental trajectory of the FTS process as a future carbon-neutral strategy.

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