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Elevated-temperature pressure swing adsorption could potentially replace wet methods in the field of syngas purification. However, the reversibility of sulfur removal in this technique needs to be validated. In this study, the H2S adsorption reversibility of two types of activated carbon sorbents were evaluated on a fixed-bed reactor. The effects of desorption method and desorption temperature were...
In this study, an efficient PID control system has been designed for a vacuum pressure swing adsorption (VPSA) process which used silica gel to capture CO2 from dry flue gas. Changes of CO2 composition in feed gas are set as disturbances and vary from 12.0 to 15.0% to make simulation work more closely to reality. Meanwhile, adsorption step time duration was set to change consistently according to...
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