US4062764A
Expired / Lapsed
US
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Method for neutralizing acidic components in petroleum refining units using an alkoxyalkylamine
Assignee: Nalco Exxon Energy Chemicals LP
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Filing: 1976-07-28
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Granted: 1977-12-13
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Expires: 1996-07-28
Abstract
Abstract A method of neutralizing acidic components in petroleum refining units in which distillation is taking place, which method comprises adding a compound corresponding to Formula I below either alone or in combination with a film-forming amine to the petroleum product being distilled: Formula I r--o--(ch.sub.2).sub.n NH.sub.2 wherein n is 2 or 3 and R is a lower alkyl radical of not more than 4 carbon atoms.
Inventors
- 👤 James A. White
- 👤 Thomas C. Maynard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:35
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222; C10L1/2225; C10G; C10G7/00; C10G7/10; C10L1/18; C10L1/188; C10L1/1881; C10L1/1883
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
69 words
A process for neutralizing the acidic components in the initial condensate of a distilling petroleum product in a refining unit which comprises: adding a neutralizing amount of a compound having the formula, R--O--(CH 2 ) n NH 2 wherein n is 2 or 3 and R is a lower alkyl radical of not more than 4 carbon atoms to said petroleum product as it passes through the refining unit.
Claim 2
Dependent Claim
69 words
A process for neutralizing the acidic components in the initial condensate of a distilling petroleum product in a refining unit which comprises: adding a neutralizing amount of a compound having the formula, R--O--(CH 2 ) n NH 2 wherein n is 2 or 3 and R is a lower alkyl radical of not more than 4 carbon atoms to said petroleum product as it passes through the refining unit.
Claim 3
Dependent Claim
38 words
A process for neutralizing acidic components in the initial condensate of a distilling petroleum product in a refining unit which comprises: adding a neutralizing amount of methoxypropylamine to said petroleum product as it passes through the refining unit.
Claim 4
Dependent Claim
38 words
A process for neutralizing acidic components in the initial condensate of a distilling petroleum product in a refining unit which comprises: adding a neutralizing amount of methoxypropylamine to said petroleum product as it passes through the refining unit.
Claim 5
Dependent Claim
18 words
A process as in claim 2 wherein methoxypropylamine is added to the overhead line of the distilling unit.
Claim 6
Dependent Claim
27 words
A process as in claim 2 wherein methoxypropylamine is added to the petroleum product before said product is passed through the fractionating column of the distilling unit.
Claim 7
Dependent Claim
62 words
A process for neutralizing acidic components in the initial condensate of a distilling petroleum product in a refining unit which comprises: adding a neutralizing amount of methoxypropylamine to said petroleum product as it passes through the refining unit, the amount of methoxypropylamine added to said product being sufficient to raise the pH of the water of the initial condensate to above 4.0.
Claim 8
Dependent Claim
62 words
A process for neutralizing acidic components in the initial condensate of a distilling petroleum product in a refining unit which comprises: adding a neutralizing amount of methoxypropylamine to said petroleum product as it passes through the refining unit, the amount of methoxypropylamine added to said product being sufficient to raise the pH of the water of the initial condensate to above 4.0.
Claim 9
Dependent Claim
64 words
A process for neutralizing acidic components in the initial condensate of a distilling petroleum product in a refining unit which comprises: adding a neutralizing amount of methoxypropylamine to said petroleum product as it passes through the refining unit, the amount of methoxypropylamine added to said product being sufficient to raise the pH of the water of the initial condensate to at least about 5.0.
Claim 10
Dependent Claim
64 words
A process for neutralizing acidic components in the initial condensate of a distilling petroleum product in a refining unit which comprises: adding a neutralizing amount of methoxypropylamine to said petroleum product as it passes through the refining unit, the amount of methoxypropylamine added to said product being sufficient to raise the pH of the water of the initial condensate to at least about 5.0.
Claim 11
Dependent Claim
70 words
A continuous process for neutralizing the acidic components dissolved in the water of the initial condensate of a distilling petroleum product, which product is distilled in a distillation unit containing a fractionating tower and an overhead line which comprises continuously adding to the petroleum product being distilled a neutralizing amount of methoxypropylamine and continuously recycling the water condensed to the overhead line of the fractionating tower of the distilling unit.
Claim 12
Dependent Claim
70 words
A continuous process for neutralizing the acidic components dissolved in the water of the initial condensate of a distilling petroleum product, which product is distilled in a distillation unit containing a fractionating tower and an overhead line which comprises continuously adding to the petroleum product being distilled a neutralizing amount of methoxypropylamine and continuously recycling the water condensed to the overhead line of the fractionating tower of the distilling unit.
Claim 13
Dependent Claim
31 words
A process as in claim 7 wherein the amount of methoxypropylamine added to said product is sufficient to raise the pH of the water of the initial condensate to above 4.0.
Claim 14
Dependent Claim
32 words
A process as in claim 7 wherein the amount of methoxypropylamine added to said product is sufficient to raise the pH of the water of the initial condensate to at least 5.0.
Claim 15
Independent Claim
63 words
A method of neutralizing the acidic components dissolved in the water of the initial condensate in contact with the metal surfaces of a petroleum distilling unit which comprises: adding to the product being distilled a corrosion inhibiting amount of a film-forming amine along with methoxypropylamine in an amount sufficient to raise the pH of the water of the initial condensate to above 4.0.
Claim 16
Independent Claim
63 words
A method of neutralizing the acidic components dissolved in the water of the initial condensate in contact with the metal surfaces of a petroleum distilling unit which comprises: adding to the product being distilled a corrosion inhibiting amount of a film-forming amine along with methoxypropylamine in an amount sufficient to raise the pH of the water of the initial condensate to above 4.0.
Claim 17
Independent Claim
65 words
A method of neutralizing the acidic components dissolved in the water of the initial condensate in contact with the metal surfaces of a petroleum distilling unit which comprises: adding to the product being distilled a corrosion inhibiting amount of a film-forming amine along with methoxypropylamine in an amount sufficient to raise the pH of the water of the initial condensate to at least about 5.0.
Claim 18
Independent Claim
65 words
A method of neutralizing the acidic components dissolved in the water of the initial condensate in contact with the metal surfaces of a petroleum distilling unit which comprises: adding to the product being distilled a corrosion inhibiting amount of a film-forming amine along with methoxypropylamine in an amount sufficient to raise the pH of the water of the initial condensate to at least about 5.0.
Claim 19
Dependent Claim
94 words
A process for neutralizing the acidic components in the initial condensate of a distilling petroleum product in a refining unit which comprises: adding a neutralizing amount of a compound having the formula, R-O-(CH 2 ) n NH 2 wherein n is 2 or 3 and R is a lower alkyl radical of not more than 4 carbon atoms, to said petroleum product as it passes through the refining unit, the amount of said compound added to said product being sufficient to raise the pH of the water of the initial condensate to above 4.0.
Claim 20
Dependent Claim
94 words
A process for neutralizing the acidic components in the initial condensate of a distilling petroleum product in a refining unit which comprises: adding a neutralizing amount of a compound having the formula, R-O-(CH 2 ) n NH 2 wherein n is 2 or 3 and R is a lower alkyl radical of not more than 4 carbon atoms, to said petroleum product as it passes through the refining unit, the amount of said compound added to said product being sufficient to raise the pH of the water of the initial condensate to above 4.0.
Claim 21
Dependent Claim
19 words
A process as in claim 12 wherein the compound is added to the overhead line of the distilling unit.
Claim 22
Dependent Claim
28 words
A process as in claim 12 wherein the compound is added to the petroleum product before said product is passed through the fractionating column of the distilling unit.
Claim 23
Dependent Claim
96 words
A process for neutralizing the acidic components in the initial condensate of a distilling petroleum product in a refining unit which comprises: adding a neutralizing amount of a compound having the formula, R-O-(CH 2 ) n NH 2 wherein n is 2 or 3 and R is a lower alkyl radical of not more than 4 carbon atoms to said petroleum product as it passes through the refining unit, the amount of said compound added to said product being sufficient to raise the pH of the water of the initial condensate to at least about 5.0.
Claim 24
Dependent Claim
96 words
A process for neutralizing the acidic components in the initial condensate of a distilling petroleum product in a refining unit which comprises: adding a neutralizing amount of a compound having the formula, R-O-(CH 2 ) n NH 2 wherein n is 2 or 3 and R is a lower alkyl radical of not more than 4 carbon atoms to said petroleum product as it passes through the refining unit, the amount of said compound added to said product being sufficient to raise the pH of the water of the initial condensate to at least about 5.0.
Claim 25
Dependent Claim
100 words
A continuous process for neutralizing the acidic components dissolved in the water of the initial condensate of a distilling petroleum product, which product is distilled in a distillation unit containing a fractionating tower and an overhead line which comprises continuously adding to the petroleum product being distilled a neutralizing amount of a compound having the formula, R-O-(CH 2 ) n NH 2 wherein n is 2 or 3 and R is a lower alkyl radical of not more than 4 carbon atoms, and continuously recycling the water condensed to the overhead line of the fractionating tower of the distilling unit.
Claim 26
Dependent Claim
100 words
A continuous process for neutralizing the acidic components dissolved in the water of the initial condensate of a distilling petroleum product, which product is distilled in a distillation unit containing a fractionating tower and an overhead line which comprises continuously adding to the petroleum product being distilled a neutralizing amount of a compound having the formula, R-O-(CH 2 ) n NH 2 wherein n is 2 or 3 and R is a lower alkyl radical of not more than 4 carbon atoms, and continuously recycling the water condensed to the overhead line of the fractionating tower of the distilling unit.
Claim 27
Dependent Claim
32 words
A process as in claim 16 wherein the amount of the compound added to said product is sufficient to raise the pH of the water of the initial condensate to above 4.0.
Claim 28
Dependent Claim
33 words
A process as in claim 16 wherein the amount of the compound added to said product is sufficient to raise the pH of the water of the initial condensate to at least 5.0.
Claim 29
Independent Claim
93 words
A method of neutralizing the acidic components dissolved in the water of the initial condensate in contact with the metal surfaces of a petroleum distilling unit which comprises: adding to the product being distilled a corrosion inhibiting amount of a film-forming amine along with a compound having the formula, R--O--(CH 2 ) n NH 2 wherein n is 2 or 3 and R is a lower alkyl radical of not more than 4 carbon atoms, in an amount sufficient to raise the pH of the water of the initial condensate to above 4.0.
Claim 30
Independent Claim
93 words
A method of neutralizing the acidic components dissolved in the water of the initial condensate in contact with the metal surfaces of a petroleum distilling unit which comprises: adding to the product being distilled a corrosion inhibiting amount of a film-forming amine along with a compound having the formula, R--O--(CH 2 ) n NH 2 wherein n is 2 or 3 and R is a lower alkyl radical of not more than 4 carbon atoms, in an amount sufficient to raise the pH of the water of the initial condensate to above 4.0.
Claim 31
Independent Claim
93 words
A method of neutralizing the acidic components dissolved in the water of the initial condensate in contact with the metal surfaces of a petroleum distilling unit which comprises: adding to the product being distilled a corrosion inhibiting amount of a film-forming amine along with a compound having the formula, R--O--(CH 2 ) n NH 2 wherein n is 2 or 3 is a lower alkyl radical of not more than 4 carbon atoms, in an amount sufficient to raise the pH of the water of the initial condensate to at least about 5.0.
Claim 32
Independent Claim
93 words
A method of neutralizing the acidic components dissolved in the water of the initial condensate in contact with the metal surfaces of a petroleum distilling unit which comprises: adding to the product being distilled a corrosion inhibiting amount of a film-forming amine along with a compound having the formula, R--O--(CH 2 ) n NH 2 wherein n is 2 or 3 is a lower alkyl radical of not more than 4 carbon atoms, in an amount sufficient to raise the pH of the water of the initial condensate to at least about 5.0.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |