著者

前田 治男 五十嵐 雅之 宮川 喜洋 小林 肇 佐藤 光三 眞弓 大介 坂田 将

出版者

石油技術協会

雑誌

石油技術協会誌 (ISSN:03709868)

巻号頁・発行日

vol.76, no.6, pp.530-537, 2011 (Released:2014-01-18)

参考文献数

7

被引用文献数

1 2

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INPEX Corporation, Tokyo University and Natural Institute of Advanced Industrial Science and Technology (AIST) have been working since 2008 to study methane-producing technology using microbes inhabiting depleted oil and gas fifields. The concept and mechanism of microbial methane conversion are depicted as follows. First, inhabiting bacteria prompt to produce acetic acid or hydrogen from residual petroleum components in the underground reservoir. Next, methane-producing microbes (methanogens) are concerned in generating methane from the produced acetic acid, hydrogen and carbon dioxide injected for geological sequestration as CCS operation.A wide variety of hydrogen- and methane-producing microbes have been discovered in (depleted) oil fields. We found that microbes indigenous to the reservoir brine could produce methane probably by using crude oil as a carbon source in the presence of CO2 (10 mol%).Kinetics of gas (methane, carbon dioxide) production and consumption of acetic acid indicated that there are two reaction pathways from oil to methane; the acetoclastic methane producing pathway and the hydrogentrophic methane producing pathway.Furthermore, from the result of methane producing experiments and Carbon isotope tracer test, the existence of syntrophic cooperation between hydrogen producing bacteria and methane producing archaea is also identified.We are currently evaluating the way to enhance the capability of methane-producing microbes and developing an effective and efficient process for methane production in the actual reservoir condition.Our results will lead to establish a new MEOR system that converts residual oil in depleted oil fields into environmentally friendly methane efficiently.

著者

小林肇

出版者

国土交通省

雑誌

国総研レポート

巻号頁・発行日

vol.2010, no.9, 2010-03

著者

前田 治男 五十嵐 雅之 小林 肇

出版者

一般社団法人 日本エネルギー学会

雑誌

日本エネルギー学会大会講演要旨集 第26回日本エネルギー学会大会 (ISSN:24238317)

巻号頁・発行日

pp.62-63, 2017-07-25 (Released:2017-07-25)

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Carbon Capture and Storage (CCS) technology, which is currently being developed around the world, could become a practical countermeasure to reduce emissions of the greenhouse gas. Depleted petroleum reservoirs and aquifer have been proposed as candidate sites of CCS. The long-term aim of this research is to establish a bio-technological system to convert geologically-stored CO2 into methane, as an energy resource. To develop a means for the conversion, we focus on technological application of a bio-electrochemical system using microbial catalyzed electrode (bio-cathode).