Abstract
In this work the optimum operating conditions for complete CO2 recovery via gas to hydrate conversion process with minimum energy consumption is investigated. A new series of experiments are carried out at different pressures, temperatures, agitation intensities and kinetic promoter concentrations by using a newly developed fully automated GTH (gas to hydrate) energy converter. According to the presented results at the 27bar and 1°C and in the presence of 4000ppm anionic surfactant sodium dodecyl sulfate (SDS) and proper amount of free water, it is possible to reach a CO2 gas to hydrate conversion of 95% without using any agitating device and without using any help additive at a completely unstirred quiescent condition which is a superb result from engineering viewpoint. The presented approach outperforms the other energy consuming CO2 recovery processes and can have significant industrial application for development of low cost hydrate-based carbon dioxide recovery plants.
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