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7811538 |
Mercaptan removal method
The method allows to remove mercaptans contained in a gaseous feed comprising hydrocarbons by carrying out the following stages: a) contacting, in a reactor R1, gaseous feed 1 with a liquid stream...
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7803270 |
Process for the extractive oxidation of contaminants from raw fuel streams catalyzed by iron oxides
A process is described for the extractive oxidation of contaminants present in raw fuel streams rich in heteroatomic polar compounds and catalyzed by iron oxides contained in natural limonitic...
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7651606 |
Process for desulphurizing olefinic gasolines, comprising at least two distinct hydrodesulphurization steps
The invention concerns a process for the hydrodesulphurization of gasoline cuts for the production of gasolines with a low sulphur and mercaptans content. Said process comprises at least two...
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7252756 |
Preparation of components for refinery blending of transportation fuels
A process is disclosed for the production of refinery transportation fuel or components for refinery blending of transportation fuels having a reduced amount of sulfur and/or nitrogen-containing...
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7192565 |
Method of collecting mercaptans contained in a gaseous feed
The gaseous feed flowing in through line 1 is contacted in contacting zone ZA with a liquid solvent flowing in through line 2. The solvent comprises between 0.001% and 100% by weight of a liquid...
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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...
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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...
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7081196 |
Treatment of crude oil fractions, fossil fuels, and products thereof with sonic energy
In crude oil fractions, fossil fuels, and organic liquids in general in which it is desirable to reduce the levels of sulfur-containing and nitrogen-containing components, the process reduces the...
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7074324 |
Process to remove sulfur contaminants from hydrocarbon streams
A process for removing sulfur compounds from hydrocarbon streams by contacting the hydrocarbon stream, especially a gasoline stream, with an adsorbent material. The adsorbent material is...
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6881325 |
Preparation of components for transportation fuels
Economical processes are disclosed for the production of components for refinery blending of transportation fuels by selective oxidation of feedstocks comprising a mixture of hydrocarbons,...
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6843906 |
Integrated hydrotreating process for the dual production of FCC treated feed and an ultra low sulfur diesel stream
An integrated hydrotreating process which produces a high quality feed for the FCC to maintain sulfur in FCC gasoline to a level lower than 30 ppm from a high boiling feedstock and an ultra low...
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6673230 |
Process for oxygenation of components for refinery blending of transportation fuels
Economical processes are disclosed for production of components for refinery blending of transportation fuels which are liquid at ambient conditions by selective oxygenation of refinery feedstocks...
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6638419 |
Method for obtaining oil products with low sulphur content by desulfurization of extracts
A method for obtaining oil products such as diesel fuel with improved quality, from a gas oil fraction containing organosulphur compounds such as dibenzenethiophenes and/or their derivatives, with...
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6596914 |
Method of desulfurization and dearomatization of petroleum liquids by oxidation and solvent extraction
A multi-step process for desulfurizing liquid petroleum fuels that also removes nitrogen-containing compounds and aromatics. The process steps are: thiophene extraction; thiophene oxidation;...
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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...
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6416658 |
Process for simultaneous hydrotreating and splitting of naphtha streams
A process for concurrently fractionating and hydrotreating of a full range naphtha stream. The full boiling range naphtha stream is subjected to simultaneous hydrodesulfurization and splitting into...
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6406616 |
Process for removing low amounts of organic sulfur from hydrocarbon fuels
A process for desulfurizing hydrocarbons such as gasoline and similar petroleum products to reduce the sulfur content to a range of from about 2 to 15 ppm sulfur without affecting the octane rating...
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5980732 |
Integrated vacuum residue hydrotreating with carbon rejection
The residue (bottoms) from a vacuum or atmospheric column is upgraded in a revamped multireactor hydrotreating zone. The hydrotreating zone is modified such that the entire effluent of the next to...
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5968347 |
Multi-step hydrodesulfurization process
A hydrotreatment process for effecting hydrotreatment of a liquid hydrocarbon feedstock containing a mixture of liquid hydrocarbons together with organic sulphurous impurities in which a...
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5346614 |
Removal of hydrogen sulfide from an oil-containing mixture having a continuous aqueous phase
A method and system for removing hydrogen sulfide from a continuous aqueous phase-containing fluid without forming a sulfur sludge. Oil is either initially present in the fluid or added thereto.
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5310479 |
Process for reducing the sulfur content of a crude
A process for reducing the aliphatic sulfur content of a crude oil in a production site is disclosed. A crude oil with a high aliphatic sulfur content is treated at ambient reaction temperature...
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5258117 |
Means for and methods of removing heavy bottoms from an effluent of a high temperature flash drum
A process for improving the performance of heavy oil refining units in a resid hydrotreating unit equipped for resid hydrotreating. The partially refined resid stream issuing from a train of...
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5242578 |
Means for and methods of deasphalting low sulfur and hydrotreated resids
A refining process uses a two or four stage solvent separator coupled to receive an incoming feedstream of low sulfur resid and a solvent. In the preferred two stage separator, the mixture at the...
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4948494 |
Removal of hydrogen sulfide from produced fluids
Hydrogen sulfide is removed from a water-in-oil emulsion by treatment of the emulsion with sulfur dioxide to convert the hydrogen sulfide to elemental sulfur. The elemental sulfur formed is...
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4746420 |
Process for upgrading diesel oils
A process for upgrading diesel oil comprising the steps of: (1) reacting the diesel oil with a nitrogenous treating agent; (2) contacting the diesel oil from step (1) above with (a) a primary...
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4711713 |
Process for enhancing the cetane number and color of diesel fuel
A process for enhancement of the cetane number of a diesel fuel which in one embodiment comprises: (1) treating a diesel oil with a nitrogenous treating agent in a nitrogen amount, equivalent on a...
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4643820 |
Process for enhancing the cetane number of diesel fuel
A process for enhancement of the cetane number of a diesel fuel which in one embodiment comprises: (1) treating a diesel oil with a nitrogenous treating agent in a nitrogen amount, equivalent on a...
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4465589 |
Removal of contaminants from organic compositions
Metals, nitrogen and/or sulfur, particularly vanadium, nickel and nitrogen, are removed from organic compositions, particularly heavy hydrocarbon oils, by contacting the organic composition with a...
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3719587 |
PURGING AND WASHING COAL NAPHTHA TO REMOVE DIHYDROGEN SULFIDE AND BASIC NITROGEN
Coal-derived naphtha boiling within the range from 80° F. to 450° F. has been found to contain sulfur as H2 S and nitrogen as basic nitrogen compounds, particularly after the extract has been h...
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3719589 |
ASPHALT SEPARATION IN DESULFURIZATION WITH AN OXIDATION STEP
Oil containing sulfur and asphalt is subjected to oxidation with organic peroxides or organic peracids at 75° - 200° F. The oxidant residue is removed by heating the oxidized product to about 1...
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3305480 |
Preparation of oils having improved oxidation stability
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3284343 |
Removal of sulfur bodies
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3265614 |
Removal of sulfur bodies
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3207690 |
Process for sulfur reduction and sweetening of hydrocarbon oils
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3063936 |
Desulfurization of hydrocarbon oils
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3000807 |
Blended transformer oil
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2973315 |
Two step process for refining raw petroleum lubricating oils with sulfuric acid and hydrogen
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2914584 |
Aromatic recovery using hydrogen fluoride and copper fluoride
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