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H-Sorb2600 High Pressure Volumetric Analyzer Assists Virginia Tech Successfully Published One Paper on Greenhouse Gases Science and Technology
2016年4月25日星期一
H-Sorb2600 High Pressure Volumetric Analyzer Assists Virginia Tech Successfully Published One Paper on Greenhouse Gases Science and Technology
Recently, one client of Gold APP Instruments Corporation China, Virginia Polytechnic
Institute and State University, had successfully published one paper which
titled as Isothermal Adsorption Kinetics Properties of Carbon Dioxide in
Crushed Coal on Greenhouse Gases Science and Technology with testing
data helps by H-Sorb 200 high pressure and
temperature volumetric gas adsorption analyzer. This
journal is famous
of carbon capture and storage, utilization of CO2, other greenhouse gases,
other mitigation strategies, analysis of relevant economic, political and
business developments etc researching fields.
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analyzers such as gas pycnometer helium density analyzer, BET surface area analyzer and porosimetry
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Here is the paper abstract: Understanding the
dynamic response of coal to carbon dioxide sorption is crucial for optimizing carbon dioxide sequestration in unmineable
coal seams and enhanced coalbed methane recovery. In order to explore the
adsorption kinetics of carbon dioxide in coal, 15 isothermal adsorption tests
were conducted on bituminous and sub-bituminous coals at 50°C for increasing
equilibrium pressures (up to 4 MPa). The pseudo-second order (PSO) model is
introduced to approximate the carbon dioxide sorption kinetics in coal, and the
kinetics properties are then investigated via the PSO model. The linear
relationship between (t/q) and (t) is validated and confirmed with a high correlation
coefficient (>99%). The kinetics parameter, k2, decreases with both
increasing equilibrium sorption pressure and increasing pressure difference.
The sorption equilibrium content, Qe, in each sorption stage depends on both
the final equilibrium pressure and the pressure difference. Based on the
relationship between sorption content and time, the sorption content for
different pressure ranges is predicted using different time intervals. The
analysis indicates that the adsorption process for carbon dioxide in coal is a
combination of both bulk diffusion-controlled and surface
interaction-controlled processes; the former dominates the initial stage while
the latter controls the majority of the overall process.
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