Carbon dioxide concentration dictates alternative methanogenic pathways in oil reservoirs.
Carbon dioxide concentration dictates alternative methanogenic pathways in oil reservoirs.
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二氧化碳浓度决定了油库中的替代甲烷源性途径。
DOI:
10.1038/ncomms2998
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发表时间:
2013
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
作者:
Deep subsurface formations (for example, high-temperature oil reservoirs) are candidate sites for carbon capture and storage technology. However, very little is known about how the subsurface microbial community would respond to an increase in CO2 pressure resulting from carbon capture and storage. Here we construct microcosms mimicking reservoir conditions (55 °C, 5 MPa) using high-temperature oil reservoir samples. Methanogenesis occurs under both high and low CO2 conditions in the microcosms. However, the increase in CO2 pressure accelerates the rate of methanogenesis to more than twice than that under low CO2 conditions. Isotope tracer and molecular analyses show that high CO2 conditions invoke acetoclastic methanogenesis in place of syntrophic acetate oxidation coupled with hydrogenotrophic methanogenesis that typically occurs in this environment (low CO2 conditions). Our results present a possibility of carbon capture and storage for enhanced microbial energy production in deep subsurface environments that can mitigate global warming and energy depletion. Deep subsurface formations are potential sites for carbon capture and storage but how subsurface microbial communities may respond to this is not clear. Here, Mayumi et al. construct microcosms and show that increasing CO2 partial pressure via carbon capture and storage more than doubles the rate of methanogenesis.
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影响因子:
3.4
作者:
BARTH, T
通讯作者:
BARTH, T
影响因子:
3
作者:
BARTH, T;RIIS, M
通讯作者:
RIIS, M
DOI:
10.1073/pnas.1108765109
发表时间:
2012-08-14
影响因子:
11.1
作者:
Lackner, Klaus S.;Brennan, Sarah;van der Zwaan, Bob
通讯作者:
van der Zwaan, Bob
影响因子:
5.1
作者:
Mayumi, Daisuke;Mochimaru, Hanako;Kamagata, Yoichi
通讯作者:
Kamagata, Yoichi
影响因子:
5.8
作者:
Huber, T;Faulkner, G;Hugenholtz, P
通讯作者:
Hugenholtz, P