Methods for removing contaminants from exhaust gases
First Claim
Patent Images
1. A method for removing contaminants from a gas stream comprising the steps of:
- a) feeding the gas stream containing contaminants into a scrubber;
b) contacting the gas stream containing contaminants with a scrubbing medium comprising seawater;
c) contacting the gas stream containing contaminants with ozone; and
d) recovering a gas stream free of contaminants.
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Abstract
A method for removing contaminants from a gas stream by feeding the gas stream into a scrubber that can use seawater as the scrubbing medium. The gas stream is first scrubbed with the seawater and then mixed with ozone to remove the contaminants. Nitrogen oxides that are present in the gas stream are converted to nitric acid/nitrates and these are recovered via condensate or coalesced mist for neutralization. The treated gas stream is then exhausted to the atmosphere.
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Citations
28 Claims
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1. A method for removing contaminants from a gas stream comprising the steps of:
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a) feeding the gas stream containing contaminants into a scrubber; b) contacting the gas stream containing contaminants with a scrubbing medium comprising seawater; c) contacting the gas stream containing contaminants with ozone; and d) recovering a gas stream free of contaminants. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for removing contaminants from a gas stream comprising the steps of:
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a) feeding the gas stream containing contaminants into a scrubber; b) contacting the gas stream containing contaminants with a scrubbing medium comprising seawater; c) feeding the gas stream containing contaminants to a droplet separator in fluid communication with the scrubber; d) contacting the gas stream containing contaminants with ozone; and e) recovering a gas stream free of contaminants. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification