Simultaneous removal of H{sub 2}S and NH{sub 3} in coal gasification process. Quarterly progress report, October 1--December 31, 1994

Abstract

DOE Project OfficerReporting Period OBJECTIVESThe objective of this study is to develop advanced high-temperature coal gas desulhrization mixed-metal oxide sorbents with stable ammonia decomposition materials at 550-800" C ( 1022-1472" F). The specific objectives of the project are to:(i) Develop a combined sorbent-catalyst materials shall be capable of removing hydrogen sulfide to less than 20 ppmv and ammonia by at least 90 percent.(ii) Carry out comparative fixed-bed studies of absorption and regeneration with various formulations of sorbent-catalyst systems and select most promising sorbent-catalyst type.(iii) Conduct long-term (at least 30 cycles) durability and chemical reactivity in the fixed-bed with the superior sorbent-catalyst. BACKGROUND INFORMATION