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| Number | Title | Issue Date |
| 7202391 | Process for inhibiting polymerization of an aromatic vinyl compound According to the present invention, there is provided a process for inhibiting the polymerization of an aromatic vinyl compound which is capable of efficiently inhibiting the polymerization of an aromatic vinyl compound not only in an initial stage but also over a l... | 04/10/2007 |
| 7175755 | Process for the extractive oxidation of contaminants from raw hydrocarbon streams A process for the extractive oxidation of contaminants from raw hydrocarbon streams rich in heteroatomic polar compounds is described, the said process involving the extractive oxidation of sulfur and nitrogen compounds from said streams, the said process comprising... | 02/13/2007 |
| 7153414 | Process for the upgrading of raw hydrocarbon streams A process for the upgrading of raw hydrocarbon streams rich in heteroatomic polar compounds and/or unsaturated moieties involving the extractive oxidation of sulfur, nitrogen, conjugated dienes and other unsaturated compounds from said streams, the said process comp... | 12/26/2006 |
| 6544409 | Process for the catalytic oxidation of sulfur, nitrogen and unsaturated compounds from hydrocarbon streams A process for the catalytic oxidation of sulfur and nitrogen contaminants as well as unsaturated compounds present in a hydrocarbon fossil oil medium is described, the process comprising effecting the oxidation in the presence of at least one peroxide, at... | 04/08/2003 |
| 6037516 | Method for removal of oxygenate impurities from organic chemical streams Oxygenate impurities are removed from an organic chemical feed or stream by treatment with an aqueous reducing agent and aqueous base, accompanied by separation. An aqueous solution of reducing agent and an aqueous solution of base are typically introduce... | 03/14/2000 |
| 5976359 | Methods for reducing the concentration of amines in process and hydrocarbon fluids Disclosed is a method for reducing the concentration of amines in hydrocarbon fluids and process streams by generating therein a nitrosating agent. The nitrosating agent will react with the amines to form innocuous by-products under refinery process condi... | 11/02/1999 |
| 4752374 | Process for minimizing fouling of processing equipment This invention relates to processes for inhibiting the degradation, particulate and gum formation of distillate fuel oils prior to or during processing which comprises adding to the distillate fuel oil an effective inhibiting amount of a mixture of (a) a ... | 06/21/1988 |
| 4457830 | Petroleum hydroconversion using acid precipitation of preasphaltenes in resid recycle A process for catalytic hydroconversion of heavy petroleum feedstocks containing preasphaltenes to produce lower-boiling hydrocarbon liquid products. In the process, an inorganic acid is added to the reactor effluent residual fraction boiling above about ... | 07/03/1984 |
| 4208268 | Method of processing thermal cracked by-product oil This invention provides a method of processing thermal cracked by-product oil which comprises reacting a distillate from a thermal cracked by-product oil principally containing components of a boiling range between 75° C. and 198° C. said distillate bei... | 06/17/1980 |
