GAS PURIFICATION SYSTEM HAVING PROVISIONS FOR CO2 INJECTION OF WASH WATER
First Claim
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1. A method for the removal of contaminants from a gas stream, comprising the steps of:
- a) introducing CO2 into a wash water stream to obtain a CO2 enriched wash water; and
b) contacting said CO2 enriched wash water with the gas stream containing contaminants to be removed to allow absorption of the contaminants into the CO2 enriched wash water.
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Abstract
The present invention relates to a methods and systems for the removal of contaminants from a gas stream, comprising the steps of: a)introducing CO2 into a wash water stream to obtain a CO2 enriched wash water; and b) contacting said CO2 enriched wash water with the gas stream containing contaminants to be removed to allow absorption of the contaminants into the CO2 enriched wash water. The present invention further relates to the use of CO2 enriched wash water for removal of alkaline contaminants from a gas stream in a gas purification system.
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Citations
26 Claims
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1. A method for the removal of contaminants from a gas stream, comprising the steps of:
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a) introducing CO2 into a wash water stream to obtain a CO2 enriched wash water; and b) contacting said CO2 enriched wash water with the gas stream containing contaminants to be removed to allow absorption of the contaminants into the CO2 enriched wash water. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 21, 22, 23, 24, 25, 26)
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11. A method for the removal of contaminants from a gas stream, comprising the steps of:
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a) removing CO2 from a CO2 rich gas stream to obtain a CO2 lean gas stream; b) introducing CO2 removed from said CO2 rich gas stream in step a) into a wash water stream to obtain a CO2 enriched wash water; and c) contacting said CO2 enriched wash water with the CO2 lean gas stream obtained in step a) to allow absorption of contaminants in the CO2 lean gas stream into the CO2 enriched wash water.
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12. (canceled)
- 13. A gas purification system comprising a first contactor device arranged for receiving a gas stream and contacting it with a wash water stream, characterized in that said system comprises means for introducing CO2 into said wash water stream upstream of said contactor device.
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16. (canceled)
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17. (canceled)
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18. (canceled)
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19. (canceled)
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20. (canceled)
Specification