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7342145 |
Process for refining liquefied petroleum gas in a commercial scale
The present invention relates to a novel process for refining the liquefied petroleum gas (LPG) in a commercial scale. The process comprises: sequentially performing fine desulfurization and...
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7326333 |
Apparatus and process for extracting sulfur compounds from a hydrocarbon stream
Described is an apparatus and process for extracting sulfur compounds from a hydrocarbon stream. A prewash section for converting hydrogen sulfide to sodium sulfide by reaction with an alkali such...
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7128828 |
Process for producing food grade wax
A process for producing food grade wax which contains exceedingly low levels of nitrogen, sulfur and aromatic compounds. A waxy feedstock is firstly hydrotreated in a first hydrogenation zone to...
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7125483 |
Corrosion control in olefin production plants
A method for reducing acid corrosion and products of acid corrosion in a thermal cracking plant, the acid corrosion products being compounds of iron, chromium, nickel, lead, cadmium, manganese,...
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7029573 |
Composition and control method for treating hydrocarbon
The invention relates to a composition and method for treating liquid hydrocarbons in order to remove acidic impurities, such as mercaptans, particularly mercaptans having a molecular weight of...
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7014751 |
Continuous liquid hydrocarbon treatment method
The invention relates to a method for treating and upgrading a hydrocarbon containing acidic species such as mercaptans, comprising: (a) contacting the hydrocarbon, in the essential absence of...
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6960291 |
Naphtha desulfurization method
The invention relates to a method for desulfurizing naphtha boiling-range hydrocarbons such as cracked naphtha. More particularly, the invention relates to hydrotreating the naphtha under selective...
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6955753 |
Treatment of crude oils
A process and apparatus to extract and recover heavy metals and sulfur from crude oil or petroleum fuel products including the steps of emulsifying the crude oil with an emulsifying agent, adding a...
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6749741 |
Apparatus and process for prewashing a hydrocarbon stream containing hydrogen sulfide
Disclosed is an apparatus and process for extracting sulfur compounds from a hydrocarbon stream. A prewash section for converting hydrogen sulfide to sodium sulfide by reaction with an alkali such...
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6623627 |
Production of low sulfur gasoline
A process for desulfurizing a gasoline stream while continuing to maintain the octane rating of the blend stock. A gasoline stream containing sulfur compounds and olefins is introduced into a...
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6387249 |
High temperature depressurization for naphtha mercaptan removal
The invention relates to naphtha hydrodesulfurization incorporating either high temperature depressurization or controlled heating for mercaptan removal. More particularly, the invention relates to...
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6224750 |
Producing low sulfur hydrocarbons with biologically regenerated caustic
A process is disclosed for producing very low sulfur content hydrocarbon streams by contacting a hydrocarbon feedstream with an aqueous alkaline treatment stream which has been regenerated by the...
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5865989 |
Process for sweetening liquid hydrocarbons
A process for sweetening high mercaptan content gasoline or other liquid hydrocarbons is disclosed which utilizes aqueous caustic solution. A recycle stream is used to increase the conversion...
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5271835 |
Process for removal of trace polar contaminants from light olefin streams
A process is disclosed for improving catalyst performance and yields in the manufacture of motor gasoline components. More particularly the process is directed to the removal of H 2 S, sulfur...
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4902404 |
Hydrotreating process with catalyst staging
Disclosed is a process for hydrotreating a hydrocarbonaceous feed wherein the feed is treated with hydrogen, at hydrotreating conditions, in a first catalyst zone containing a conventional...
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4596654 |
Hydrofining catalysts
A catalyst composition is prepared by dissolving a suitable vanadium and oxygen containing compound, a suitable nickel (II) compound and ammonia in water, mixing this solution with an alumina...
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4201662 |
Process for converting sulfur in hydrocarbon to water soluble form
A desulfurization process wherein a sulfur-containing hydrocarbon material is contacted with a sulfur oxide compound and an amine, a salt of an amine, or mixtures thereof. The contacting converts...
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3668117 |
DESULFURIZATION OF A PREOXIDIZED OIL
A sulfur-containing oil is initially preoxidized with an oxidant, such as, an organic peroxide, an organic hydroperoxide, air or an organic peracid in the presence of a Group IV--B, Group V--B or...
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3505210 |
DESULFURIZATION OF PETROLEUM RESIDUA
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3370001 |
Process for manufacture of aromatic solvents
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3293173 |
Color improvement of petroleum lubricating oils
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3284343 |
Removal of sulfur bodies
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3267027 |
Process of desulfurization employing alkali and nitrogen dioxide
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3207690 |
Process for sulfur reduction and sweetening of hydrocarbon oils
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3152070 |
Removal of odor by hydrogenation and oxidation
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3069351 |
Utilization of reformer make gas
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2980606 |
Hydrocarbon refining to reduce sulfur, nitrogen, and naphthenic acid content
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2973316 |
Process for preventing corrosion in ferrous systems
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2954340 |
Treatment of hydrocarbon containing mixtures with aqueous media
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2889195 |
Petroleum refining
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2886611 |
Process for the separate recovery of c3 and c4 hydrocarbons
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3694350 |
Title is not available
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3598535 |
Title is not available
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3595778 |
Title is not available
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