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Gas-Expanded Liquids Extraction
2023Gas Expanded Liquids (GXL) are mixtures of liquid solvents (organic, water) and gases or supercritical fluids with diverse physicochemical properties halfway between pure liquids and supercritical fluids. The possibility of changing their properties by introducing small changes in pressure, temperature, and/or solvent/gas ratio, makes these solvents a ...
Zully J. Suárez Montenegro +3 more
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Interactions between gas extraction wells
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1995Most modern landfills are fitted with a number of gas extraction wells. The concept of "radius of influence" of a well has become established as a single parameter related to the size of the region that a particular well can control. When several wells are present, their individual suctions interact to alter the radius influence of each.
Alan Young, Nigel J. Gay
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Gas Quenching with Controllable Heat Extraction
Materials Science Forum, 2007High pressure gas quenching became a modern way of quenching finally machined engineering components,having many advantages compared to quenching in liquid quenchants.The main shortcoming of this technology is the problem of achieving adequate hardness in the core of bigger workpieces,because of inadequate quenching intensity.Due to the possibility to ...
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Acid Gas Extraction of Pyridine from Water
Industrial & Engineering Chemistry Research, 1999Pyridine was extracted from aqueous solutions initially containing 5 or 15 wt % pyridine by using liquid or supercritical carbon dioxide at 10 MPa as a solvent in a mechanically agitated countercurrent extraction column. The lowest pyridine concentration in the raffinate was 0.06 wt %, whereas the pyridine concentration in the extract was 86−94 wt ...
Jauhiainen, Olli, Laitinen, Antero
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Fuel, 2020
Abstract Combined with the coal mining process of a high gas coal mine in Jinzhong, Shanxi Province, this paper discussed the evolution mechanism of the gas safety extraction channels induced by the mining of overburden fissures in the fully mechanized mining working face and carried out the physical similar simulation test.
Pengxiang Zhao +7 more
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Abstract Combined with the coal mining process of a high gas coal mine in Jinzhong, Shanxi Province, this paper discussed the evolution mechanism of the gas safety extraction channels induced by the mining of overburden fissures in the fully mechanized mining working face and carried out the physical similar simulation test.
Pengxiang Zhao +7 more
openaire +1 more source