US4428828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Upgrading hydrocarbonaceous oils with an aqueous liquid
Assignee: Chevron USA Inc
•
Filing: 1981-11-25
•
Granted: 1984-01-31
•
Expires: 2001-11-25
Abstract
Abstract A process for upgrading oils is disclosed, in which the oil to be upgraded is contacted with liquid phase water and free oxygen at an elevated temperature and at a pressure sufficient to maintain at least part of the water in the liquid phase.
Inventors
- 👤 Phillip R. Bose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:55
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10G27/06
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
63 words
A process for upgrading a hydrocarbonaceous oil which comprises: contacting said oil with added free oxygen in an amount not more than about 30 weight percent of said oil, in the presence of an aqueous liquid at a temperature between about 175° C., and 300° C., and at a pressure sufficient to maintain said aqueous liquid at least partially in the liquid phase.
Claim 2
Dependent Claim
63 words
A process for upgrading a hydrocarbonaceous oil which comprises: contacting said oil with added free oxygen in an amount not more than about 30 weight percent of said oil, in the presence of an aqueous liquid at a temperature between about 175° C., and 300° C., and at a pressure sufficient to maintain said aqueous liquid at least partially in the liquid phase.
Claim 3
Dependent Claim
22 words
A process as defined in claim 1 wherein said contacting is carried out at a temperature between 195° C. and 260° C.
Claim 4
Dependent Claim
30 words
A process as defined in claim 1 wherein said hydrocarbonaceous oil includes at least one metalliferous contaminant and said contacting decreases the concentration of said metalliferous contaminant in said oil.
Claim 5
Dependent Claim
30 words
A process as defined in claim 1 wherein said hydrocarbonaceous oil includes at least one nitrogenous contaminant and said contacting decreases the concentration of said nitrogenous contaminant in said oil.
Claim 6
Dependent Claim
30 words
A process as defined in claim 1 wherein said hydrocarbonaceous oil includes at least one sulfurous contaminant and said contacting decreases the concentration of said sulfurous contaminant in said oil.
Claim 7
Dependent Claim
19 words
A process as defined in claim 1 wherein the viscosity of said hydrocarbonaceous oil is decreased by said contacting.
Claim 8
Dependent Claim
28 words
A process as defined in claim 1 wherein said hydrocarbonaceous oil comprises hydrocarbons and the average molecular weight of hydrocarbons in said oil is decreased by said contacting.
Claim 9
Dependent Claim
36 words
A process as defined in claim 1 wherein at least one ion or salt of at least one metal selected from alkali metals and alkaline earth metals is present in said aqueous liquid during said contacting.
Claim 10
Dependent Claim
68 words
A process as defined in claim 1 wherein said hydrocarbonaceous oil, said aqueous liquid and said free oxygen are mixed together at a temperature below about 175° C. and the temperature of the resulting mixture is increased to greater than 175° C. at least in part by heat energy supplied by reaction of at least a portion of said free oxygen with a portion of said hydrocarbonaceous oil.
Claim 11
Dependent Claim
29 words
A process as defined in claim 1 wherein at least a portion of said free oxygen is dissolved in said aqueous liquid prior to contact with said hydrocarbonaceous oil.
Claim 12
Dependent Claim
29 words
A process as defined in claim 1 wherein said aqueous liquid is present during said contacting at an aqueous liquid:hydrocarbonaceous oil volume ratio of about 0.5:1 to about 10:1.
Claim 13
Dependent Claim
18 words
A process as defined in claim 1 wherein said free oxygen is formed by decomposition of hydrogen peroxide.
Claim 14
Dependent Claim
16 words
A process as defined in claim 1 wherein said hydrocarbonaceous oil is derived from oil shale.
Claim 15
Dependent Claim
15 words
A process as defined in claim 1 wherein said hydrocarbonaceous oil is derived from coal.
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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) | 1987-01-30 | 1987-08-01 | 1988-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-30 | 1991-08-01 | 1992-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-30 | 1995-08-01 | 1996-01-31 | $7700.00 | Window Closed / Lapsed |