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  • Open Access


    A Comprehensive Study on the Process of Greenhouse Gas Sequestration Based on a Microporous Media Model

    Deqiang Wang*, Xiansong Zhang, Jian Zhang, Baozhen Li

    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.4, pp. 1067-1081, 2022, DOI:10.32604/fdmp.2022.019888

    Abstract Carbon dioxide geological sequestration is an effective method to reduce the content of greenhouse gases in the atmosphere of our planet. This process can also be used to improve the production of oil reservoirs by mixing carbon dioxide and crude oil. In the present study, a differential separation experiment (DL) based on actual crude oil components is used to simulate such a process. The results show that after mixing, the viscosity and density of reservoir fluid decrease and the volume coefficient increase, indicating that the pre buried gas induces fluid expansion and an improvement of the fluid rheological properties. These… More >

  • Open Access


    Short-Term and Long-Term Effects of Natural and Artificial Carbonaceous Substrates on Greenhouse Gas Fluxes

    Jürgen Kern1,*, Judy Libra1, Christian Ammon1, York Neubauer2, Wenceslau Teixeira3

    Journal of Renewable Materials, Vol.10, No.7, pp. 1773-1786, 2022, DOI:10.32604/jrm.2022.019608

    Abstract The emissions of two greenhouse gases (GHG), carbon dioxide (CO2) and nitrous oxide (N2O), from six substrates with different carbonaceous content were compared in short and long-term incubation experiments. Three natural soils and three artificial chars were mixed with carbon (C) poor soil (Cambisol) to simulate real conditions after application of char to farmland. The natural soils were a Cambisol, an Anthrosol and a Histosol with C contents of 1.3%, 4.4% and 13.2%, respectively. The three chars produced through thermal conversion of wood chips by hydrothermal carbonisation (HTC), fluidized bed gasification and pyrolysis had C contents of 56.9%, 75.4% and… More >

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