Desulfurization of hot fuel gas produced from high-chlorine Illinois coals. Technical report, December 1, 1991--February 29, 1992
- Southern Illinois Univ., Carbondale, IL (United States)
- Research Triangle Inst., Durham, NC (United States)
There is a primary need to increase the utilization of Illinois coal resources by developing new methods of converting the coal into electricity by highly efficient and environmentally acceptable systems. New coal gasification processes are now being developed that can generate electricity with high thermal efficiency in either an integrated gasification combined cycle (IGCC) system or a molten carbonate fuel cell (MCFC). Both of-these new coal-to-electricity pathways require that the coal-derived fuel gas be at a high temperature and be free of potential pollutants, such as-sulfur compounds. Unfortunately, some high-sulfur Illinois coals also contain significant chlorine which converts into hydrogen chloride (HCI) in the coal gas. This project investigates the effect of HCI, in concentrations typical of a gasifier fed by high-chlorine Illinois coals, on zinc-titanate sorbents that are currently being developed for H{sub 2}S and COS removal from hot coal gas. This study is designed to identify any deleterious changes in the sorbent caused by HCI, both in adsorptive operation and in the regeneration cycle, and will pave the way to modify the sorbent formulation or the process operating procedure to remove HCl along with the H{sub 2}S and COS from hot coal gas. This will negate any harmful consequences Of utilizing high-chlorine Illinois coal in these processes.
- Research Organization:
- Illinois State Geological Survey, Champaign, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); Illinois Dept. of Energy and Natural Resources, Springfield, IL (United States)
- DOE Contract Number:
- FG22-91PC91334
- OSTI ID:
- 10172074
- Report Number(s):
- DOE/PC/91334--T58; ON: DE92018297
- Country of Publication:
- United States
- Language:
- English
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