PREPARATION OF AN AMINE BASED SOLVENT CONTAMINATED BY THE INTRODUCTION OF SULFUR OXIDES
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Abstract
A method for processing an amine-based solvent contaminated by the introduction of sulfur oxides is provided. A potassium compound is introduced into a contaminated solvent, and the contaminated solvent is cooled so that a solubility of a potassium sulfate becomes less than a specified concentration of potassium sulfate. Further, an oxidizing agent is introduced into the contaminated solvent so that a potassium sulfite is oxidized to potassium sulfate. The potassium sulfate is filtered out, wherein a prepared solvent is formed. Further, a device for processing an amine-based, sulfur oxide-contaminated solvent is provided.
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Citations
31 Claims
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1-16. -16. (canceled)
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17. A method for processing an amine-based solvent contaminated by the introduction of sulfur oxides, comprising:
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introducing a potassium compound into a contaminated solvent, cooling the contaminated solvent so that a solubility of a potassium sulfate becomes less than a specified concentration of potassium sulfate, introducing an oxidizing agent into the contaminated solvent so that a potassium sulfite is oxidized to potassium sulfate, and filtering out the potassium sulfate, wherein a prepared solvent is formed. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A device for processing an amine-based, sulfur oxide-contaminated solvent, comprising:
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a condenser, a crystallization reactor, and a filter, wherein a contaminated solvent is supplied to the crystallization reactor via the condenser, wherein a potassium compound is supplied to the crystallization reactor, wherein a crystallization product is discharged from the crystallization reactor into the filter, and wherein a prepared solvent is separated from the crystallization product by the filter. - View Dependent Claims (29, 30, 31)
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Specification