Matches 1 - 43 out of 43


Match Document Document Title
8101812 Extraction of hydrocarbons from hydrocarbon-containing materials  
Solvents and methods are provided for extracting a hydrocarbon fraction from a solid, semi-solid, liquid or viscous liquid hydrocarbon-containing material.
6875341 Process for enhancing the value of hydrocabonaceous natural recources  
A process for upgrading hydrocarbonaceous oil containing heteroatom-containing compounds where the hydrocarbonaceous oil is contacted with a solvent system that is a mixture of a major portion of...
6416655 Selective extraction using mixed solvent system  
A method for concentrating the amount of alkylated mono-aromatics in a lubricating oil feedstock useful as a feedstock for sulfonation. The method comprises extracting a feedstock rich in...
6350372 Mercury removal in petroleum crude using H2S/C  
The present invention relates to the removal of mercury and other heavy metals from a hydrocarbon feedstream. The process involves contacting the hydrocarbon feedstream with a feedstream-soluble...
5942654 Process for the removal of corrosive compounds from a fluid stream  
A process for the removal of corrosive compounds from a fluid stream, comprising the steps of: in an extraction column with an outer steel tube and an inner tube of corrosion resistant material...
5563315 Separation of aromatic hydrocarbons from a mixture of aromatic and non-aromatic hydrocarbons by solute swing extraction  
The invention relates to a process for separating aromatic hydrocarbons from a mixed hydrocarbon feed employing a selective solvent which exhibits a low critical solution temperature of the...
5256258 Removal of low-boiling fractions from high temperature heat transfer systems  
Water and organic low-boiling constituents in a organic heat transfer fluids used to heat commercial processes are removed by counter current stripping the fluid with a gas such as nitrogen. The...
5202520 Method for aromatic hydrocarbon recovery  
A method is provided for the recovery of aromatic hydrocarbons from the extract phase of aromatic-selective solvent extraction process which involves withdrawing a vapor side-cut fraction...
4997547 Method for the production of an aromate concentrate suitable for use as blending component for fuel  
In the method for the production of an aromate concentrate suitable for use as blending component for gasifier fuel, feed hydrocarbon mixtures having boiling ranges substantially between 40° and...
4962275 Method and apparatus for supercritical fluid extraction solution separation  
A method and apparatus for the separation of a desired product from a supritical fluid extraction solution employ a restrictor nozzle, a coarse-pore sintered-glass enclosure member and a...
4863587 Method for recovery of a phenolic polymerization inhibitor  
A phenolic polymerization inhibitor is recovered from a styrene distillation residue containing the phenolic polymerization inhibitor by a method which comprises extracting the inhibitor from the...
4836896 Separation of m-diisopropylbenzene from p-diisoproylbenzene by azeotropic distillation with acetophenone  
Meta- and para-diisopropylbenzenes cannot be easily separated from each other by distillation because of the closeness of their vapor pressures. m-Diisopropylbenzene can be readily removed from...
4761222 Method for separating normally liquid organic compounds  
A mixture of normally liquid organic compounds, particularly a light cycle oil obtained by the catalytic cracking of petroleum oils, is separated by contacting the mixture with an essentially...
4740632 Process for removing methanol from alkylation unit feed stream  
A process of removing methanol from a mixed stream comprising methanol and at least one hydrocarbon and utilizing the hydrocarbon as feed for an acid catalyzed alkylation unit which produces a...
4508597 Recovery of organic solvents from liquid mixtures  
A method of recovering light organic solvent from a liquid mixture containing the solvent and a product material, such as asphaltenes or coal liquefaction products. The solvent-product material...
4267034 Separating olefins from paraffins with dimethyl sulfoxide extractant  
A method for separating olefins from paraffins in which a mixture of olefin and paraffin is contacted with a dimethyl sulfoxide (DMSO) extractant stream in the liquid phase thereby dissolving...
4174353 Olefin separation process  
There is disclosed a process for the separation of ethylene or propylene from a purified, multi-component gas stream produced from the thermal cracking of hydrocarbons and containing ethylene or...
3855077 DISTILLATION DRYING PROCESS  
A process for drying, or simultaneously fractionationing and partially drying hydrocarbons having a dew point above that of water at the process conditions is performed in a single distillation...
3641181 MICROEMULSION SEPARATION OF ORGANIC COMPOUNDS IN LIQUID STATE  
3639496 PROCESS FOR THE PRODUCTION OF NAPHTHALENE  
3598881 PROCESS FOR REMOVING ACID GASES FROM CRACKED GASES CONTAINING DIOLEFINS  
3592865 SEPARATION AND RECOVERY OF COMPLEXIBLE LIGANDS BY LIQUID EXCHANGE  
3493627 PROCESS FOR SEPARATING THE INDIVIDUAL XYLENE ISOMERS FROM XYLENE MIXTURES  
3395195 Acetylene removal process as cuprous acetylide precipitate  
3344202 Olefin purification process  
3344198 Separating and recovering cyclopentadiene  
3280024 Extraction of naphthalenic hydrocarbons  
3277201 Separation of aromatic hydrocarbon mixtures  
3272886 Production of normal pentenes  
3236905 Preparing acetylene and ethylene  
3179708 Solvent extraction of aromatics from hydrocarbon mixtures  
3050462 Stabilization of glycol solutions employed in aromatic recovery  
3049575 Separation of organic compounds  
2972646 Separation of butadiene  
2963523 Acetylene removal from hydrocarbon streams  
2953611 Method and addition compounds for separating olefines from mixtures  
2917562 Fractionation of mixtures of aromatic hydrocarbons  
2917563 Separation of alkynes from olefins  
2908731 Olefin purieication by solvent extraction  
2855433 Recovery of olefin hydrocarbons  
2832811 Hydrolysis of ethyl chloride in light hydrocarbons  
2798102 Method of decomposing werner complex clathrates  
2794839 Process for simultaneous recovery of aromatic and naphthenic hydrocarbons from hydrocarbon mixtures  

Matches 1 - 43 out of 43