Results 21 to 30 of about 139,526 (262)

Visualization of Gas Diffusion-Sorption in Coal: A Study Based on Synchrotron Radiation Nano-CT

Geofluids, 2020
Gas diffusion-sorption is a critical step in coalbed methane (CBM) exploitation and carbon dioxide sequestration. Because of the particularity of gas physical properties, it is difficult to visualize the gas diffusion-sorption process in coal by ...
Yingfeng Sun, Yixin Zhao, Hongwei Zhang, Cun Zhang   +3 more
doaj   +1 more source

Economic Analysis of Boron10 Isotope Production by Gas Diffusion Method

Journal of Isotopes, 2022
10B is an important isotope in neutron absorbing and neutron detecting. At present, the method of large-scale production of boron isotope is mainly chemical exchange distillation.
WANG Yanbo;SUN Wang;PAN Jianxiong;ZHOU Mingsheng
doaj   +1 more source

Technical note: Determination of binary gas-phase diffusion coefficients of unstable and adsorbing atmospheric trace gases at low temperature – arrested flow and twin tube method [PDF]

Atmospheric Chemistry and Physics, 2020
Gas-phase diffusion is the first step for all heterogeneous reactions under atmospheric conditions. Knowledge of binary diffusion coefficients is important for the interpretation of laboratory studies regarding heterogeneous trace gas uptake and ...
S. Langenberg, S. Langenberg, T. Carstens, T. Carstens, D. Hupperich, S. Schweighoefer, S. Schweighoefer, U. Schurath   +7 more
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Pore network modeling as a new tool for determining gas diffusivity in peat [PDF]

Biogeosciences, 2022
Peatlands are globally significant carbon stocks and may become major sources of the greenhouse gases (GHGs) carbon dioxide and methane in a changing climate and under anthropogenic management pressure.
P. Kiuru, M. Palviainen, A. Marchionne, T. Grönholm, M. Raivonen, L. Kohl, L. Kohl, L. Kohl, A. Laurén   +8 more
doaj   +1 more source

Discrete probability model-based method for recognition of multicomponent combustible gas explosion hazard sources

High Temperature Materials and Processes, 2022
Aiming at the problems of poor sensitivity and low accuracy of traditional combustible gas explosion hazard identification methods, the discrete probability model was introduced to design a multicomponent combustible gas explosion hazard identification ...
Ye Wenhua, Feng Yang, Chen Yangming
doaj   +1 more source

An estimation of gas volume in the water-saturated part of Cenomanian gas reservoirs: a case study of the Medvezhye oil and gas condensate field

Известия высших учебных заведений: Нефть и газ, 2023
The amount of remaining recoverable natural gas reserves is affected by the pinching of gas reserves by infiltrating water and degassing of formation water in the Cenomanian water-pressure complex.
O. V. Fominykh, S. A. Leontiev, A. N. Khalin   +2 more
doaj   +1 more source

Molecular Simulation of Coal Molecular Diffusion Properties in Chicheng Coal Mine

Molecules, 2023
In order to study the importance of the diffusion mechanism of CH4 and CO2 in coal for the development of coalbed methane, the aim of this paper is to reveal the influence mechanism of pressure, temperature, water content and other factors on the ...
Jingxue Yan, Baoshan Jia, Baogang Liu, Jinyi Zhang   +3 more
doaj   +1 more source

Gas Diffusion Method Using Methane as Processing Gas

Journal of Isotopes
This study is based on gas diffusion method，using methane as processing gas to explore the production technology route of high abundance carbon-13 isotopes.
Fei WANG, Mingsheng ZHOU, Jianxiong PAN, Dongjun JIANG   +3 more
doaj   +1 more source

Study on mathematical model of coal particles gas adsorption under different particle sizes and pressures

Meikuang Anquan, 2023
Gas adsorption experiment with coal particles is a basic means to study the gas flow mechanism of coal matrix. In order to explore the influence of coal particle shape on coal gas adsorption law, a constant temperature and pressure adsorption experiment ...
GAO Yu, LIU Jia, QIN Yueping
doaj   +1 more source

Measurement of gas diffusion through soils: comparison of laboratory methods [PDF]

Journal of Environmental Monitoring, 2008
Gas movement through soils is important for ecosystems and engineering in many ways such as for microbial and plant respiration, passive methane oxidation in landfill covers and oxidation of mine residues. Diffusion is one of the most important gas movement processes and the determination of the diffusion coefficient is a crucial step in any study ...
Suzanne E, Allaire, Jonathan A, Lafond, Alexandre R, Cabral, Sébastien F, Lange   +3 more
openaire   +3 more sources