US5505876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsion of viscous hydrocarbon in water which inhibits aging
Assignee: Intevep SA
•
Filing: 1994-06-14
•
Granted: 1996-04-09
•
Expires: 2014-06-14
Abstract
Abstract A low viscosity, non-aging hydrocarbon in water emulsion formed from a viscous hydrocarbon comprises from about 70 to 80%/wt. oil, from about 20 to 30%/wt. water, from about 0.1 to 5.0%/wt. of an emulsifying agent, and an average oil droplet size of greater than or equal to 15 microns wherein the emulsion is characterized by a viscosity of less or equal to 1500 centipoise at 80 DEG F. and substantial non-aging over time wherein the change in viscosity of the emulsion is less than 100 centipoise per month.
Inventors
- 👤 Hercilio Rivas
- 👤 Maria L. Ventresca
- 👤 Gerardo Sanchez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:15
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/32; C10L1/328; B; B01; B01F; B01F23/00; B01F23/40; B01F23/41; B01F23/4105; B01J; B01J13/00; B01F33/00; B01F33/80; B01F33/834; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0391
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
137 words
A low viscosity , non-aging hydrocarbon in water emulsion formed from a viscous hydrocarbon comprises from about 70 to 80%/wt. oil, from about 20 to 30%/wt. water, from about 0.1 to 5.0%/wt. of an emulsifying agent; wherein said emulsifying agent comprises (1) a phenol-formaldehyde ethoxylated resin in an amount of between 1 to 10%/wt. based on the total weight of the emulsifying agent and (2) a surfactant selected from the group consisting of a nonionic surfactant and an anionic surfactant; and wherein said emulsion is characterized by an average oil droplet size of greater than or equal to 15 microns, a viscosity of less or equal to 1500 centipoise at 1 s -1 and 80° F., and is substantially non-aging over time wherein the change in viscosity of the emulsion is less than 100 centipoise per month.
Claim 2
Dependent Claim
137 words
A low viscosity , non-aging hydrocarbon in water emulsion formed from a viscous hydrocarbon comprises from about 70 to 80%/wt. oil, from about 20 to 30%/wt. water, from about 0.1 to 5.0%/wt. of an emulsifying agent; wherein said emulsifying agent comprises (1) a phenol-formaldehyde ethoxylated resin in an amount of between 1 to 10%/wt. based on the total weight of the emulsifying agent and (2) a surfactant selected from the group consisting of a nonionic surfactant and an anionic surfactant; and wherein said emulsion is characterized by an average oil droplet size of greater than or equal to 15 microns, a viscosity of less or equal to 1500 centipoise at 1 s -1 and 80° F., and is substantially non-aging over time wherein the change in viscosity of the emulsion is less than 100 centipoise per month.
Claim 3
Dependent Claim
137 words
A hydrocarbon in water emulsion according to claim 1 wherein said viscous hydrocarbon has the following physical and chemical properties: ° API gravity of between 1 and 16; viscosity at 122° F. of between 100,000 and 500,00 centipoise; viscosity at 210° F. of between 10,000 and 16,000 centipoise; asphaltene content of between 5 and 25%/wt.; resin content of between 3 and 30%/wt.; carbon content of between 78.2 and 85.5%/wt.; hydrogen content of between 9.0 and 10.8%/wt.; oxygen content of between 0.25 and 1.1%/wt.; nitrogen content of between 0.5 and 0.7%/wt.; sulfur content of between 2.0 and 4.5%/wt.; vanadium content of between 50 to 1000 ppm; nickel content of between 20 to 500 ppm; iron content of between 5 to 100 ppm; sodium content of between 10 to 500 ppm; and ash content of between 0.55 and 0.3%/wt.
Claim 4
Dependent Claim
24 words
A hydrocarbon in water emulsion according to claim 1 wherein the change in viscosity of the emulsion is less than 100 centipoise per year.
Claim 5
Dependent Claim
46 words
A hydrocarbon in water emulsion according to claim 1 wherein said emulsifying agent comprises a non-ionic surfactant and a phenol-formaldehyde ethoxylated resin wherein said phenol-formaldehyde ethoxylated resin is present in an amount of between 1 to 5%/wt. based on the total weight of the emulsifying agent.
Claim 6
Dependent Claim
33 words
A hydrocarbon in water emulsion according to claim 4 wherein said phenol-formaldehyde ethoxylated resin is present in an amount of between 1 to 2%/wt. based on the total weight of the emulsifying agent.
Claim 7
Dependent Claim
33 words
A hydrocarbon in water emulsion according to claim 4 wherein said non-ionic surfactant has a hydrophylic-lipophylic balance of greater than 13 and said phenol-formaldehyde ethoxylated resin has from 3 to 7 ethoxy units.
Claim 8
Dependent Claim
29 words
A hydrocarbon in water emulsion according to claim 4 wherein said non-ionic surfactant is selected from the group consisting of ethoxylated alkyl phenols and esters of ethoxylated sorbitans compounds.
Claim 9
Dependent Claim
46 words
A hydrocarbon in water emulsion according to claim 1 wherein said emulsifying agent comprises an anionic surfactant and a phenol-formaldehyde ethoxylated resin wherein said phenol-formaldehyde ethoxylated resin is present in an amount of between 1 to 5%/wt. based on the total weight of the emulsifying agent.
Claim 10
Dependent Claim
33 words
A hydrocarbon in water emulsion according to claim 8 wherein said phenol-formaldehyde ethoxylated resin is present in an amount of between 1 to 2%/wt. based on the total weight of the emulsifying agent.
Claim 11
Dependent Claim
25 words
A hydrocarbon in water emulsion according to claim 8 wherein said anionic surfactant is selected from the group consisting of carboxylic acids and sulphonic acids.
Claim 12
Dependent Claim
16 words
A hydrocarbon in water emulsion according to claim 8 wherein said anionic surfactant comprises ammonia dodecylbenzenesulphonate.
Claim 13
Dependent Claim
97 words
A low viscosity, non-aging hydrocarbon in water emulsion formed from a viscous hydrocarbon comprises: from about 70 to 80%/wt. oil, from about 20 to 30%/wt. water, from about 0.1 to 5.0%/wt. of an emulsifying additive comprising an alkyl phenol ethoxylated and a phenol-formaldehyde ethoxylated resin, and an average oil droplet size of greater than or equal to 15 microns wherein said emulsion is characterized by a viscosity of less or equal to 1500 centipoise at 80° F. and substantial non-aging over time wherein the change in viscosity of the emulsion is less than 100 centipoise per month.
Claim 14
Dependent Claim
97 words
A low viscosity, non-aging hydrocarbon in water emulsion formed from a viscous hydrocarbon comprises: from about 70 to 80%/wt. oil, from about 20 to 30%/wt. water, from about 0.1 to 5.0%/wt. of an emulsifying additive comprising an alkyl phenol ethoxylated and a phenol-formaldehyde ethoxylated resin, and an average oil droplet size of greater than or equal to 15 microns wherein said emulsion is characterized by a viscosity of less or equal to 1500 centipoise at 80° F. and substantial non-aging over time wherein the change in viscosity of the emulsion is less than 100 centipoise per month.
Claim 15
Dependent Claim
24 words
A hydrocarbon in water emulsion according to claim 12 wherein the change in viscosity of the emulsion is less than 100 centipoise per year.
References Cited (Backward Citations)
US4251229A
Cited
US4305835A
Cited
US4814094A
Cited
US4551239A
Cited
US4539099A
Cited
US4646771A
Cited
US4983319A
Cited
US4949743A
Cited
US5354504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-09 | 1999-10-09 | 2000-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-09 | 2003-10-09 | 2004-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-09 | 2007-10-09 | 2008-04-09 | $7700.00 | Window Closed / Lapsed |