This paper deals with the thermodynamic analysis of an IGCC power plant with hot syngas clean-up, where sulfur, particulate matter and trace contaminants are removed without cooling the syngas down to near-ambient temperature. With particular attention to the simulation of the desulfurization unit, adopting a regenerative process using a ZnO-based sorbent, a range of clean-up temperatures was investigated in order to evaluate its effects on overall plant performance. The study reveals the attractive chance of achieving overall electric efficiencies around 50%. However, a limited sensitivity of IGCC efficiency on desulfurization temperature was also obtained, since no significant improvements were accomplished for temperatures over 400°C. In order to support and better understand the results, a second law analysis was also carried out for the assessed cases. In addition, the effects of syngas clean-up temperature on the design and operation of the main IGCC processes and components, which can be relevant, were discussed.
- International Gas Turbine Institute
On the Effects of Syngas Clean-Up Temperature in IGCCs
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Giuffrida, A, & Romano, MC. "On the Effects of Syngas Clean-Up Temperature in IGCCs." Proceedings of the ASME Turbo Expo 2010: Power for Land, Sea, and Air. Volume 3: Controls, Diagnostics and Instrumentation; Cycle Innovations; Marine. Glasgow, UK. June 14–18, 2010. pp. 661-670. ASME. https://doi.org/10.1115/GT2010-22752
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