Promoter for gas absorption
Abstract
Abstract WHEN USING POTASH OR OTHER ALKALI METAL SALTS SUCH AS BORATES, CARBONATES, HYDROXIDES, PHOSPHATES OR BICARBONATES IN SOLUTION TO REMOVE ACID GASES SUCH AS H2S AND CO2, SO2 AND COS FROM GASEOUS MIXTURES, UNEXPECTEDLY HIGH ABSORPTION AND DESORPTION RATES ARE OBTAINED BY ADDING TO THE SOLUTION PIPERIDINE AND DERIVATIVES THEREOF AND/ OR 1,6-HEXANEDIAMINE OR DERIVATIVES THEREOF UNDER DESIGNATED CONDITIONS. THESE AMINES ARE CAPABLE OF FORMING REGIONS OF LIQUID-LIQUID-GAS IMMISCIBILITY IN THE PROCESS SOLUTION; THE MIXTURE IS, HOWEVER, MAINTAINED IN A SINGLE PHASE DURING THE ABSORPTION AND DESORPTION OF THE GASES. THE SINGLE PHASE IS MAINTAINED BY KEEPING THE ACID GAS, E.G., CO2 LEVEL IN THE SOLUTION ABOVE ABOUT 25% OF THE SOLUTIONS TOTAL CAPACITY FOR CO2.
Inventors
- 👤 F Leder
Bibliographic Details
Claims Analysis
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