Design of Hydrogen Deoxygenation Reactor for Sodium Chlorate by-Product
Taking into account the characteristics of hydrogen-rich tail gas produced by sodium chlorate plant,such as high concentration of hydrogen,diversified and complex impurities(including water vapor,oxygen,trace amounts of chlorine and corbon dioxide),slight corrosiveness,a combination process of"alkali washing+water washing+compression+adsorption+de-oxygenation+condensation recycling"was studied to treat the hydrogen-rich tail gas.The scale of treating the hydrogen-rich tail gas was designed to be 5 600 m3(N)/h.The results of nearly three years of continuous production operation show that the quality of the treated hydrogen meets the standard of industrial hydrogen grade,and can meet the technical requirements of hydrogen raw material for downstream industrial chain.The example proves that the combination process of alkali washing and de-oxygenation as the core can deeply purify the hydrogen produced as by-product in sodium chlorate plant.
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