|Budget Amount *help
¥2,600,000 (Direct Cost : ¥2,600,000)
Fiscal Year 1991 : ¥600,000 (Direct Cost : ¥600,000)
Fiscal Year 1990 : ¥2,000,000 (Direct Cost : ¥2,000,000)
Gasification of chemically treated propane-, gasoline-, light oil-soot or active carbon into the gaseous materials by the catalyzed steam or carbon dioxide in the elevated temperature was investigated to propose the valuable utilization of exhaust soot. The results are as follows.
1. Various KOH treated soots were significantly transformed into the H_2, CO, CO_2 mixture gas in the stream of steam and helium at around 700ﾟC. KOH was estimated to be catalyst in the water gas reaction.
2. Carbon dioxide in the produced gas was found to be formed by shift reaction (CO+H_2O->CO_2+H_2).
3. Decline in the catalysis on KOH was observed in the carbon dioxide stream.
4. Nethanation of the produced mixture gas (CO, CO_2, H_2) in the soot-H_2O/KOH reactant was demonstrated by Pd/ZrO_2 catalyst at 400ﾟC.
5. Structure change in the carbon channel network was suggested through the data of surface area, XRD, DTA-TG, and SEM etc. on the gasification of KOH treated soot.
6. Mechanism of catalysis on KOH in the soot gasification was proposed as the cycle of dehydration, reduction, oxidation, and hydration.