IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0023658
(2011-02-09)
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| 등록번호 |
US-8753567
(2014-06-17)
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발명자
/ 주소 |
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| 출원인 / 주소 |
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| 대리인 / 주소 |
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| 인용정보 |
피인용 횟수 :
0 인용 특허 :
14 |
초록
A method for controlling odor in an air scrubber makes use of a dicarboxylic acid, which is placed in contact with odor-causing contaminants, and which is maintained at a pH of about 5.0 to about 8.0.
대표청구항
▼
1. A method for controlling odor in an air scrubber, comprising: providing a dicarboxylic acid;contacting the dicarboxylic acid with an odor-causing contaminant through feeding the dicarboxylic acid into water circulating in the air scrubber; andmaintaining the dicarboxylic acid in a solution at a p
1. A method for controlling odor in an air scrubber, comprising: providing a dicarboxylic acid;contacting the dicarboxylic acid with an odor-causing contaminant through feeding the dicarboxylic acid into water circulating in the air scrubber; andmaintaining the dicarboxylic acid in a solution at a pH of between about 5.0 to about 8.0. 2. The method of claim 1, wherein the step of maintaining the dicarboxylic acid solution at a pH of between about 5.0 to about 8.0 comprises maintaining the water circulating in the air scrubber at a pH of between about 5.0 to about 8.0. 3. The method of claim 1, further comprising controlling saturation of the water circulating in the air scrubber. 4. The method of claim 1, wherein the odor-causing contaminant is selected from primary amines, secondary amines, tertiary amines, ammonia, mercaptans, thiols, hydrogen sulfide, other sulfide compounds, and combinations thereof. 5. The method of claim 1, wherein the dicarboxylic acid has the formula: wherein, R is selected from covalent bond, lower alkyl, alkyl, alkenyl, aryl, or any substituted or unsubstituted carbon chain, wherein the resulting dicarboxylic acid is water-soluble. 6. The method of claim 1, wherein the dicarboxylic acid is selected from: oxalic acid, malonic acid, succinic acid, glutaric acid, hexanedioic acid, heptanedioic acid, oxtanedioic acid, nonanedioic acid, decanedioic acid, malic acid, phthalic acid, isophthalic acid, terephthalic acid, and any other water-soluble dicarboxylic acid. 7. The method of claim 1, wherein the dicarboxylic acid is selected from: oxalic acid, malonic acid, succinic acid, glutaric acid, and malic acid. 8. The method of claim 1, wherein the dicarboxylic acid is malic acid. 9. The method of claim 1, and further comprising: providing a scale inhibitor, an oil dispersant, a surfactant, a water-soluble ketone, a water-soluble aldehyde, or combinations thereof. 10. The method of claim 1, wherein the dicarboxylic acid is provided at a concentration of at least about 100 part per million. 11. The method of claim 10, wherein the dicarboxylic acid is provided at a concentration of about 100 parts per million to about 2000 parts per million. 12. The method of claim 1, wherein the concentration of dicarboxylic acid is adjusted to a stoichiometric level to match the odor-causing contaminant.
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