1991 Fiscal Year Final Research Report Summary
Reducible gas evolution from the alkali treated soot or active carbon by the catalyzed steam or carbon dioxide.
| Project/Area Number |
02555165
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
無機工業化学・無機材料工学
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| Research Institution | Ibaraki College of Technology |
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Principal Investigator |
SAITOH Yasuo Ibaraki College of Technology, Department of Industrial Chemistry, Assistant Professor, 工業化学科, 助教授 (10005374)
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| Project Period (FY) |
1990 – 1991
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| Keywords | Soot / KOH treatment / Water gas reaction / Methanation / Shift reaction / Thermal analysis / Channel network / Catalysis cycle |
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| Research Abstract |
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.
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