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- W348097759 abstract "The removal of HCl vapor from hot coal gas streams was studied in a fixed, thin bed reactor. A synthetic sorbent, Katalco Chloride Guard 59-3 and two natural minerals, shortite and nahcolite were examined. In the temperature range of 523/sup 0/C to 623/sup 0/C, these sorbents reacted rapidly with HCl vapor and were able to reduce the level of HCl in the coal gas to about 1 ppM. The capacity for chloride uptake was found to be a function of both the porosity and the sodium carbonate content of the sorbents. In a dry coal gas atmosphere at 523/sup 0/C, nearly 90% of the sodium carbonate in Katalco Guard could be converted to NaCl. The presence of steam and higher temperatures both tend to reduce the capacity of the sorbent. Shortite possesses a higher sodium carbonate content than Katalco Guard, but it was found to have lower capacity for HCl because of its low porosity; only about 20% of the sodium carbonate was converted to NaCl. Nahcolite powder, after pelletization and calcination, was found to be porous and to possess moderate surface area. This mineral, which is nearly pure NaHCO/sub 3/, decomposes to Na/sub 2/CO/sub 3/ at the reaction temperature;more » about 90% of the Na/sub 2/CO/sub 3/ in nahcolite was converted to NaCl in the temperature range of 523/sup 0/C to 650/sup 0/C. 20 refs., 13 figs., 5 tabs.« less" @default.
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- W348097759 date "1985-07-01" @default.
- W348097759 modified "2023-09-22" @default.
- W348097759 title "High temperature coal gas chloride cleanup for molten carbonate fuel cell applications. Topical technical report, September 1984-June 1985" @default.
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