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Title: POSSIBILITY OF IN SITU HYDROGEN GENERATION WITHIN GAS RESERVOIRS
POSSIBILITY OF IN SITU HYDROGEN GENERATION WITHIN GAS RESERVOIRS

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Pavel Afanasev; Evgeny Popov; Alexey Cheremisin; Roman Berenblum; Evgeny Mikitin
10.5593/sgem2022/4.1/s17.19
10.5593/sgem2022/4.1
1314-2704
978-619-7603-44-6
English
22
4.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Renewable Energy Sources and Clean Technologies
Recently, hydrogen is often considered as one of the prospective clean energy carriers. However, the traditional hydrogen production methods also produce significant amounts of greenhouse gases or too expensive to be industrial scaled. In situ hydrogen generation in hydrocarbon-containing reservoirs can be one of the promising ways for low-carbon hydrogen production. However, the conversion of hydrocarbons into hydrogen under the hydrocarbon reservoirs conditions has practically not been studied.
This work reports experimental results on the catalytic in situ hydrogen generation from methane under gas reservoir conditions. Verification concept experiments were performed in the autoclave setup in static and dynamic modes with various operational parameters. The effects of temperature, pressure, and core model type on the hydrogen generation were investigated.
Results show that temperature higher than 550?C should be achieved in the active zone of the target reservoir to convert significant amount of methane to hydrogen. This effect can be explained by the thermodynamic restrictions and negative influence of the original core on catalyst activity. Nevertheless, hydrogen concentrations up to 70.8% mol. and 34.0% mol. were achieved in the experiments at 800 ?C in the presence of the inert (crushed alumina) and the original core models, respectively. At this temperature strong reducing conditions influence the catalyst activity. Conducted experiments proved the main principles of the in situ hydrogen generation technology. Therefore, we conclude that hydrogen generation in gas reservoirs is prospective when realized jointly with the catalyst treatment and in situ combustion method.
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The authors would like to thank the Integrated Center of Petroleum Science and Engineering of the Skolkovo Institute of Science and Technology, Lukoil-Engineering LLC and Ritek LLC for supporting and assisting this research. This work was also supported by the Ministry of Science and Higher Education of the Russian Federation under agreement No. 075-10-2022-011 within the framework of the development program for a world-class Research Center.
conference
https://doi.org/10.5593/sgem2022/4.1/s17.19
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Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 04 - 10 July, 2022
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Turkish Acad Sci.
145-152
04 - 10 July, 2022
website
8589
hydrogen generation, catalytic methane conversion, steam methane conversion, in situ combustion