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| Number | Title | Issue Date |
| 7423189 | Method of utilizing a catalytic reaction to recycle organic scrap The present invention discloses a method of utilizing a catalytic reaction to recycle organic scrap, wherein via a special cracking equipment, a special catalyst and a two-stage cracking process, the present invention not only can effectively convert organic scrap i... | 09/09/2008 |
| 7411107 | Alkene separation process A process for the oxidation of a C2 to C4 alkane to produce the corresponding alkene and carboxylic acid which process comprises separation of the alkene from a mixture of the alkene, the alkane and oxygen by absorption in a metallic salt solut... | 08/12/2008 |
| 7357902 | Process for the removal of oxygen from olefin-containing process streams Process for the removal of oxygen from a gas mixture comprising oxygen, at least one olefin, hydrogen, carbon monoxide and optionally at least one alkyne, the ratio of oxygen:hydrogen in the gas mixture being 1 part by volume of oxygen to at least 5 parts by volume ... | 04/15/2008 |
| 7019188 | Use of ionic liquids to separate olefins, diolefins and aromatics The present invention relates to the separation of olefins, diolefins and lower aromatics from mixed streams of hydrocarbons using ionic liquids in the absence of metal compounds. The present invention eliminates the metal complexes conventionally used in such separ... | 03/28/2006 |
| 6962614 | Additive for diesel particulate filter An additive to a fuel oil for a Diesel engine having a Diesel particulate filter (DPF), which comprises a molybdenum compound and having the function of improving the combustion property of a particulate matter (PM) trapped with DPF; a fuel oil comprising the additi... | 11/08/2005 |
| 6849774 | Separation of dienes from olefins using ionic liquids Methods for separating di-olefins from mono-olefins, and olefins from non-olefins such as paraffins, oxygenates and aromatics; are provided. The methods use metal salts which complex both mono-olefins and di-olefins, but which selectively complex di-olefins in the p... | 02/01/2005 |
| 6806398 | Process for removing mercury from liquid hydrocarbon The continuous process for removing mercury comprises a step of continuously feeding a mercury-containing liquid hydrocarbon to an ionization zone where the elementary mercury is ionized; and a step of continuously feeding the liquid hydrocarbon containing the ioniz... | 10/19/2004 |
| 6727398 | Methods and systems for purifying styrene feedstock comprising use of low palladium catalyst Apparatus, methods and systems useful for removing phenylacetylene from crude styrene feedstock are disclosed. Generally the processes and systems comprise the catalytic reduction of phenylacetylene to produce styrene via injection of a phenylacetylene reducing agen... | 04/27/2004 |
| 6676830 | Process for the desulfurization of a light FCC naphtha A process for the desulfurization of a light boiling range (C5 -350° F.) fluid catalytically cracked naphtha, which may be first subjected to a thioetherification to react the diolefins with mercaptans contained in it to form sulfides, is fed ... | 01/13/2004 |
| 6531103 | Process for removing sulfur compounds from gas and liquid hydrocarbon streams The present invention provides a process for removing sulfur compounds including sulfur in the (-2) oxidation state such as mercaptans, dialkyl sulfides, carbonyl sulfide, hydrogen sulfide, thiophenes and benzothiophenes, from liquid or gas feed streams, ... | 03/11/2003 |
| 6414210 | Process for the separation of light olefins from paraffins Process for the separation of light olefins from paraffins contained in mixtures, optionally also containing hydrogen, comprising bringing said mixtures into contact with an aqueous solution of one or more compounds of silver, preferably silver nitrate, a... | 07/02/2002 |
| 6339182 | Separation of olefins from paraffins using ionic liquid solutions Methods for separating olefins from non-olefins, such as parafins, including cycloparaffins, oxygenates and aromatics, are provided. The methods use metal salts to complex olefins, allowing the non-olefins to be separated by a variety of methods, includin... | 01/15/2002 |
| 6268543 | Method of removing mercury in liquid hydrocarbon In a method of efficiently removing mercury from a liquid hydrocarbon, the liquid hydrocarbon is contacted with water contacted in advance with a crude oil and a sludge contacted in advance with a crude oil. Alternatively, the liquid hydrocarbon is contac... | 07/31/2001 |
| 6184315 | Process for polymerization in the presence of alpha olefins The polymerization process is carried out starting from a monomer that is introduced via pipe (1) and a comonomer that is introduced via pipe (2); the comonomer that is used, which is an alpha-olefin, is introduced into polymerization reactor P in the for... | 02/06/2001 |
| 6042798 | Method of desulfurization of hydrocarbons A method for the desulfurization of hydrocarbons by desulfurizing unsaturated hydrocarbons or hydrocarbon materials containing unsaturated hydrocarbons, in the presence or absence of hydrogen, using a copper-zinc desulfurizing agent prepared by the co-pre... | 03/28/2000 |
| 5888402 | Process for the purification of a hydrocarbon stream Process for the purification of a hydrocarbon stream by removing contaminating compounds contained in the hydrocarbon stream by contact with a solid adsorbent material and withdrawing a purified hydrocarbon stream, the improvement of which comprises passi... | 03/30/1999 |
| 5859304 | Chemical absorption process for recovering olefins from cracked gases The present invention provides an improved method for recovering high purity olefins from cracked gas effluents or other parafin/olefin gaseous mixtures by use of a chemical absorption process.... | 01/12/1999 |
| 5811606 | Process and equipment for treatment of waste plastics A process for treating waste plastics includes adding the waste plastics and a catalyst into a reactor for catalytic cracking reaction at 280°-480° C., removing the solid impurities in the generated vapor, condensing the vapor in condenser, and returnin... | 09/22/1998 |
| 5744685 | Unsaturated hydrocarbon separation and recovery process A process is disclosed for the separation and recovery of an unsaturated hydrocarbon from its mixture with at least one other material by the selective and reversible complexation of the unsaturated hydrocarbon using a single cubane-type cluster of pallad... | 04/28/1998 |
| 5674379 | Process for removing carbonyl-sulfide from liquid hydrocarbon feedstocks The present invention relates to a process for removing carbonyl sulfide from a liquid hydrocarbon feedstock, said process comprising the steps of (a) passing said hydrocarbon feedstock over an absorbent material comprising nickel deposited on a support m... | 10/07/1997 |
| 5625116 | Process for the removal of carbon monoxide from alpha-olefins and saturated hydrocarbons The carbon monoxide contained in -olefins and saturated hydrocarbons, in particular -olefins and C2-4 saturated hydrocarbons, is removed, by contacting such -olefins and saturated hydrocarbons, at a temperature ranging from... | 04/29/1997 |
| 5510568 | Process for the removal of mercaptans and hydrogen sulfide from hydrocarbon streams A process for treating a light cracked naphtha to be used as an etherification or alkylation feedstock in which the mercaptans and diolefins are removed simultaneously in a distillation column reactor using a Pd catalyst. The mercaptans are reacted with t... | 04/23/1996 |
| 5470456 | Process for removing carbonyl-sulfide from liquid hydrocarbon feedstocks The present invention relates to a process for removing carbonyl sulfide from a liquid hydrocarbon feedstock, said process comprising the steps of (a) passing said hydrocarbon feedstock over an absorbent material comprising nickel deposited on a support m... | 11/28/1995 |
| 5463154 | Arsine and phosphines as acetylene converter moderators A method for acetylene hydrogenation which involves adding a member selected from the group consisting of arsine and phosphine to moderate the activity of acetylene hydrogenation catalysts while maintaining acceptable catalyst activity and avoiding the ri... | 10/31/1995 |
| 5457252 | Catalyst composition for the selective hydrogenation of benzene and process for such hydrogenation A novel catalyst has been provided for the selective hydrogenation of benzene in gasoline. The catalyst mixture comprises a water-soluble, organo-metallic, selective benzene hydrogenation catalyst comprising catalytically-active mixture of (A) M[L]x | 10/10/1995 |
| 5446232 | Removing oxygen from hydrocarbon gases Disclosed is a method and apparatus for removing oxygen from hydrogen, hydrocarbon, or halogenated hydrocarbon gas which contains about 0.01 to about 10 mole % oxygen. The oxygen removal is accomplished by contacting the gas with a Hopcalite catalyst at a... | 08/29/1995 |
| 5421994 | Process for the recovery of mercury and arsenic in a hydrocarbon cut A process for the recovery of mercury and arsenic for which elementary mercury and/or mercury mercaptides are recovered prior to the recovery of arsenic and wherein the recovery temperature of the arsenic is higher than the recovery temperature of the mer... | 06/06/1995 |
| 5401392 | Process for eliminating mercury and possibly arsenic in hydrocarbons For removing mercury and any arsenic in hydrocarbon charges containing mercury and sulfur, the charge is contacted with an arsenic collecting material having catalytic properties ("catalyst") in hydrogen, the material containing at least one metal selecte... | 03/28/1995 |
| 5389240 | Naphthenic acid removal as an adjunct to liquid hydrocarbon sweetening Naphthenic acids may be efficiently and conveniently removed from liquid hydrocarbon feedstocks by passing such feedstocks through a bed of certain metal oxide solid solutions related to hydrotalcites. The removal of naphthenic acids is an important adjun... | 02/14/1995 |
| 5292991 | Process for removal of hydrocarbons carbon manoxide, and oxides of nitrogen from oxygen-containing waste gas using molecular sieve-palladium-platinum catalyst on a substrate A process of using a catalyst system for the oxidation of hydrocarbons, carbon monoxide, and the reduction of nitrogen oxides is provided. The unique synergy of the catalyst system, a combination of molecular sieves and noble metals, provides a system tha... | 03/08/1994 |
| 5268091 | Method for removing arsenic and phosphorus contained in liquid hydrocarbon cuts, nickel based retaining material A method for removing arsenic and/or phosphorus from a petroleum charge with a retaining material comprising: (a) from 60 to 97% of a carrier containing, by weight, from 1.5 to 60% of oxide of at least one metal A selected from the group consisting of Mg, ... | 12/07/1993 |
| 5254763 | Catalyst and process for the selective hydrogenation of benzene A novel process is provided for the selective hydrogenation of benzene in a solution of gasoline and other aromatic organic compounds. The process includes the steps of carrying out the catalytic hydrogenation in a hydrogenation zone at a temperature of a... | 10/19/1993 |
| 5210333 | Benzene removal from hydrocarbon streams A method for the separation of benzene from a hydrocarbon stream, such as a gasoline boiling range stream, which comprises contacting the hydrocarbon stream with an adsorbent capable of selectively adsorbing the benzene from the stream, hydrogenating the ... | 05/11/1993 |
| 5157204 | Removal of impurities from hydrocarbon feeds A process for removing carbon monoxide and free oxygen from hydrocarbon-containing fluids comprises contacting the fluid feed with at least one of several supported platinum-containing catalyst compositions so as to convert carbon monoxide and free oxygen... | 10/20/1992 |
| 5130109 | Catalyst composition containing segregated platinum and rhodium components A catalyst composition suitable for three-way conversion of internal combustion engine, e.g., automobile gasoline engine, exhaust gases, includes a catalytic material disposed in two discrete coats on a carrier. The first coat includes a stabilized alumin... | 07/14/1992 |
| 5106484 | Purifying feed for reforming over zeolite catalysts The present invention is directed to a process for treating hydrotreated naphtha which involves treating the naphtha over massive nickel catalyst followed by treating the naphtha over a metal oxide under conditions effective for removing impurities from s... | 04/21/1992 |
| 5057644 | Process for the purification of alpha olefins This invention relates to a process for the purification of an alpha olefinic feedstock contaminated with internal olefins which process comprises contacting said alpha olefinic feedstock with ethylene in the presence of a catalyst comprising an organobor... | 10/15/1991 |
| 4911825 | Process for elimination of mercury and possibly arsenic in hydrocarbons Process for elimination of mercury in hydrocarbon charges wherein said charge is contacted, under hydrogen, with a catalyst containing at least one metal from the group consisting of nickel, cobalt, iron and palladium followed by--or mixed with--a capture... | 03/27/1990 |
| 4861939 | Process for removing arsine from light olefin containing hydrocarbon feedstocks The present invention relates to a process for removing arsine from a light olefin to containing hydrocarbon feedstock, said process comprising the steps of (a) passing said feedstock over an absorbent material comprising nickel deposited on a support mat... | 08/29/1989 |
| 4830735 | Process for removing carbonyl-sulfide from liquid hydrocarbon feedstocks The present invention relates to a process for removing carbonyl sulfide from a liquid hydrocarbon feedstock, said process comprising the steps of (a) passing said hydrocarbon feedstock over an absorbent material comprising nickel deposited on a support m... | 05/16/1989 |
