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RITE Conducts Carbon Storage Experiment

Thursday, Aug 30, 2007

Article Type: Reprinted

The Japanese Research Institute of Innovative Technology for the Earth (RITE), in Kizugawa, Kyoto Prefecture, has been conducting carbon storage experimentation since July 2003, burying 20 tons per day of carbon dioxide from an oil company in Nagaoka and injecting it 1,100m underground, according to a recent article in Japanese newspaper the Asahi Shimbun.
A total of 10,400 tons of carbon dioxide has been injected. The storage is being monitored by three observation wells around the experiment field.
"Some of the carbon dioxide seems to have become trapped through chemical reactions with minerals contained in the sandstone," Shigeo Murai, chief researcher of the CO2 sequestration research group at RITE, is quoted as saying.
Japan has been researching technologies to dissolve carbon dioxide in the ocean, or pump it into deep sea, but is now moving its attention to underground storage.
The article cites Japanese data of a cost to store 1 ton of carbon dioxide of 7,300 yen (USD $63.70), of which 4,200 yen ($36.64) is spent capturing the gas.

Researchers are looking for ways to improve the technology such as with membranes.

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