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Our news editors obtained a quote from the research, "In order to design the SEWGS process, the equilibria and kinetics of adsorption must be known for the entire pressure range. Here, a multicomponent adsorption isotherm is presented for CO2 and H2O on K-HTC at 400 degrees C and 0.5-24 bar partial pressure, that has been derived from integrated experimentally determined breakthrough curves with special attention being given to the high pressure interaction. The experimental results can be well described by assuming that the isotherm consists of a low partial pressure surface adsorption part and a high partial pressure nanopore adsorption part. Surface adsorption occurs at specific and different sites for CO2 or H2O. In contrast, the nanopore adsorption mechanism is competitive and explains the interaction observed in the capacity data at partial pressures over 5 bar. Based on the characteristics of the sorbent particles, a linear driving force relation has been derived for sorption kinetics. Adsorption isotherm and linear driving force kinetics have been included in a reactor model."
According to the news editors, the research concluded: "Model predictions are in agreement with breakthrough as well as regeneration experiments."
For more information on this research see: Isotherm model for high-temperature, high-pressure adsorption of CO2 and H2O on K-promoted hydrotalcite.
The news editors report that additional information may be obtained by contacting
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