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PROCESS FOR REGENERATING AN AQUEOUS HYDROGEN SULFIDE AND HYDROGEN CARBONATE CONTAINING ALKALIMETAL CARBONATE SOLUTION FROM THE DESULFULVATION OF HOT CO 2 -GASES.
PROCESS FOR REGENERATING AN AQUEOUS HYDROGEN SULFIDE AND HYDROGEN CARBONATE CONTAINING ALKALIMETAL CARBONATE SOLUTION FROM THE DESULFULVATION OF HOT CO 2 -GASES.
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机译:从热CO 2气脱硫中再生含碱金属碳酸盐溶液的硫化氢和碳酸氢盐水溶液的方法。
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摘要
A process for the selective removal of hydrogen sulfide from a gas containing hydrogen sulfide and carbon dioxide wherein said gas is contacted at superatmospheric pressure with an alkali metal carbonate solution, the resultant solution which contains hydrosulfide and bicarbonate is subjected to pressure reduction, the total alkali metal bicarbonate content of the resultant solution is adjusted so that it is at least 55% of the total alkali content of the solution and the said solution is then stripped and recycled to the hydrogen sulfide absorption step.
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