Clean Gas Group

Gas-solid energy systems are investigated for clean and efficient utilization of solid organic materials; fuel converting process and combustion to solve energy and global environmental issues. One important topic is the HyPr-RING process in which coal or other organic materials are converted into hydrogen and carbon dioxide with a CO2 fixation process using a solid absorbent, such as CaO etc. resulting in highly purified hydrogen. The absorbent accelerates the reaction by supplying chemical energy directly into the reaction by shifting the chemical equilibrium, simultaneously. Also, low temperature gasification of biomass is investigated using porous particles to absorb tar released during the gasification for efficient utilization. Combustion technologies are also important research issues for the efficient utilization of coal, sewage sludge, and other organic wastes. Pressurized and circulating fluidized bed technologies are mainly utilized in this field. The gasification processes are also under investigation for multi-phase flow.

(upper left) Upper part of reactor	(right) Continuous tube type reactor for hydrogen production with dry type feeding system ( HyPr-RING process)
(lower left) Lower part of reactor

Clean Gas Group

AIST Tsukuba West, Tsukuba, Ibaraki 305-8569 Japan
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