| Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802) |
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| 07/31/2003 | US20030144129 Supported catalyst regeneration |
| 07/31/2003 | US20030144128 Decreasing the hydrocarbon content; impregnating under a non-oxidative atmosphere with a solution of ammonium salt and an alkyl ammonium salt and ammonia; oxidizing with a gaseous oxidant in the presence of the impregnating solution; reducing |
| 07/30/2003 | EP1102953B1 Installation producing low voltage electricity integrated in a unit separating gas from air |
| 07/30/2003 | CN1433392A Method and device for treating C4 fraction |
| 07/29/2003 | US6600083 From C8 aromatic hydrocarbons, using a para-selective, adsorbent such as non-acidic, medium pore molecular sieve of the MFI structure type operated isothermally integrated with crystallization |
| 07/24/2003 | WO2003059852A1 Para-xylene and ethylbenzene separation from mixed c8 aromatics |
| 07/24/2003 | WO2003059504A2 Molecular sieve regenerating process |
| 07/24/2003 | WO2003059483A2 Separation of dienes from olefins using ionic liquids |
| 07/24/2003 | CA2433648A1 Para-xylene and ethylbenzene separation from mixed c8 aromatics |
| 07/23/2003 | EP1328495A1 Separation of hydrocarbons by extractive distillation |
| 07/23/2003 | CN1432054A Heat transfer fuid based on polyphenylmethanes exhibiting improved thermal stability |
| 07/23/2003 | CN1431981A Removal of phosphorus-contg. compounds from olefin feedstock |
| 07/23/2003 | CN1431980A Removal of phosphorus-contg. impurities from olefin feedstock |
| 07/22/2003 | US6596913 Recovery of tertiary butyl alcohol |
| 07/22/2003 | US6596911 Composition and method for inhibition of formation of gas hydrates |
| 07/17/2003 | US20030135081 Contacting with a linear polyaromatic compound such as anthracene or benzanthracene to form an olefin adduct, separating the adduct from the feedstock; dissociating the adduct; and and separating out the polyaromatic hydrocarbon |
| 07/17/2003 | US20030134744 Process for production and distribution of a prereduced selective hydrogenation catalyst |
| 07/16/2003 | EP1326947A1 Isomerisation process |
| 07/16/2003 | EP1326943A2 C-nitrosoaniline compounds and their blends as polymerization inhibitors |
| 07/16/2003 | EP1326817A1 Method and devices for producing naphthalene from coke produced from coke oven crude gas |
| 07/16/2003 | EP1326816A2 Process for selective hydrogenation of an olefinic feed stream containing acetylenic and diolefinic impurities |
| 07/16/2003 | EP1326815A1 Removal of polar contaminants from aromatic feedstocks |
| 07/16/2003 | CN1430591A Diene removal from olefin feedstock |
| 07/16/2003 | CN1114582C Solvent suction process for separation of hydrocarbon mixture |
| 07/15/2003 | US6593506 Olefin recovery in a polyolefin production process |
| 07/15/2003 | US6592779 Mixture of dimethyl ethers of ethylene oxide adducts; improved volatility versus viscosity and removal versus retention balances |
| 07/15/2003 | US6592722 Polymerization inhibitor for vinyl-containing materials |
| 07/10/2003 | WO2003019068A8 Dewatering device and method for gas hydrate slurrys |
| 07/10/2003 | WO2001051450A3 Synthesis and use of dimethyl-1,5-naphthalenedicarboxylates and intermediates therefrom |
| 07/10/2003 | US20030130556 Coproduction process for para-xylene and ortho-xylene comprising two separation steps |
| 07/10/2003 | US20030130555 Recovering oxygenate from the product stream of an oxygenate to olefin process using a molecular sieve catalyst. |
| 07/10/2003 | US20030130549 Disproportionation of toluene to produce mixed xylenes containing a high concentration of p-xylene, and disproportionation and transalkylation of C9+ aromatics and toluene to produce benzene and the mixed xylenes |
| 07/08/2003 | US6590132 Separation of monomer from oligomer with lower bottoms temperature |
| 07/03/2003 | WO2003053574A1 Process for production of a prereduced selective hydrogenation catalyst |
| 07/03/2003 | US20030125599 Separation of dienes from olefins using ionic liquids |
| 07/03/2003 | US20030125597 Method of removing dimethyl ether from an olefin stream |
| 07/02/2003 | EP1322897A2 Hydrocarbon gas processing |
| 07/02/2003 | EP1322581A1 Method for manufacturing olefins from alkanes by oxidative dehydrogenation |
| 07/02/2003 | EP1322580A1 Adsorptive separation process for recovery of two paraffin products |
| 07/02/2003 | EP1322579A1 Process for the purification of iosoctane and/or diisobutylene |
| 07/02/2003 | CN1426987A Process for coproducing p-xylene and or tho-xylene by using two separating steps |
| 07/01/2003 | US6586647 Contacting hydrogen and liquid hydrocarbon stream containing butadiene and acetylenes with catalytic composite comprising inorganic oxide support having finely divided copper metal and activator metal dispersed on outer 200 micron layer |
| 07/01/2003 | US6586610 Melting the beeswax, adding activated charcoal so that it absorbs coumafos (O,O'-diethyl-O''-(3-chloro-4-methyl-7-coumarinyl) thiophosphate) and pressure filtering |
| 07/01/2003 | US6584803 Nitrogen rejection method and apparatus |
| 06/26/2003 | WO2003051799A1 Adsorptive separation product recovery by fractional distillation |
| 06/26/2003 | WO2003051798A1 Oxidative desulfurization of sulfur-containing hydrocarbons |
| 06/26/2003 | US20030120126 Process for separating internal and alpha olefins from saturated compounds |
| 06/26/2003 | CA2470079A1 Oxidative desulfurization of sulfur-containing hydrocarbons |
| 06/25/2003 | EP1076639B1 Process for the hydrogenation of phenyl acetylene in a styrene-containing medium with the aid of a catalyst |
| 06/25/2003 | CN1426447A Method for inhibiting plugging of conduits by gas hydrates |
| 06/25/2003 | CN1112226C Gas-phase selective absorption process for separating dichlorobenzene from mixture |
| 06/24/2003 | US6581410 Low temperature separation of hydrocarbon gas |
| 06/19/2003 | US20030114725 Decomposing a tert-alkyl ether to form a tert-olefin, an alcohol and residual ether, in presence of a polysiloxane catalyst grafted with alkyl, aryl or alkylaryl sulfonic acid, purification, oxidation and dehydrogenation of tert-olefin |
| 06/19/2003 | US20030111331 Process for inhibiting polymer formation in a vinyl monomer azeotropic dehydration process |
| 06/18/2003 | EP1319649A1 Process for inhibiting polymer formation in an vinyl monomer azeotropic dehydration process |
| 06/18/2003 | EP1076638B1 Method for separating a c 4? hydrocarbon mixture |
| 06/18/2003 | CN1424294A Method for inhibiting polymer generation in azeotropic dehydration of vinyl monomer |
| 06/17/2003 | US6580009 Flexible preparation of propene and hexene |
| 06/17/2003 | US6579419 Method for purifying norbornene by distillation |
| 06/12/2003 | WO2003048094A1 System and method for purifying cumene hydroperoxide cleavage products |
| 06/12/2003 | WO2003048086A1 Process of removing oxygenated contaminants from an olefin composition |
| 06/12/2003 | WO2003048085A1 Oxygenated hydrocarbon compositions and method for recovering the compositions |
| 06/12/2003 | US20030109760 Destroying peroxy compounds that might be present |
| 06/11/2003 | CN1423625A Process for the production of gasoline stocks |
| 06/10/2003 | US6576806 Process for separating C2-C3 olefins from industrial gases |
| 06/10/2003 | US6576721 Process for producing low polymer of ethylene |
| 06/10/2003 | US6576588 Process for selective hydrogenation of alkynes and catalyst therefor |
| 06/05/2003 | WO2003020678A3 Method of separating dimethyl ether from an olefin stream |
| 06/05/2003 | US20030105379 Passing impure mixture through a bed of regenerated adsorbent free of carbon monoxide, effecting within the bed, selective adsorption/complexing of the contained acetylenic impurities, regenerating the bed in presence of hydrogen a reducing gas |
| 06/05/2003 | US20030105377 Mixing a source of sub-stoichiometic amount of dihydrogen with the impure mixture (olefin produced from hydrocarbon cracking containing acetylenic impurities), passing the feedstream through a adsorbent bed to adsorb/complex the impurities |
| 06/04/2003 | EP1315563A1 Selective hydrogenation catalyst and processes therefor and therewith |
| 06/04/2003 | EP1112242B1 Continuous method and heat pump device for enriching liquid low-concentrated reaction mixtures |
| 06/04/2003 | CN1422326A Process for purifying a liquid hydrocarbon fuel |
| 06/03/2003 | US6573418 Process for production of para-xylene incorporating pressure swing adsorption and simulated moving bed adsorption |
| 06/03/2003 | US6573417 Fractionation of paraffin isomerization process effluent |
| 06/03/2003 | US6573408 Feed containing impurities in fluid communication with an aqueous alkaline solution feed; the cumene hydroperoxide cleavage product mixture and aqueous alkaline solution feeds are in fluid communication with a neutralization drum having |
| 06/03/2003 | US6572678 Process using two-step membrane system relying on balance between temperature low enough to provide useful selectivity and not so low that permeability of selective material, hence flux of membranes during operation, drops to impractical level |
| 05/30/2003 | WO2003044125A2 A process to produce a dilute ethylene stream and a dilute propylene stream |
| 05/29/2003 | US20030100813 Extraction of aromatics from hydrocarbon oil using furfural-co-solvent extraction process |
| 05/29/2003 | US20030100809 Process for separating C5 cuts obtained from a petroleum cracking process |
| 05/29/2003 | US20030100808 Compositions comprising nonamantanes and processes for their separation |
| 05/29/2003 | US20030100800 Reacting impurities in an aqueous salt phase with an oxidizing agent at a temperature and time to form water-soluble oxidized derivatives and separating |
| 05/29/2003 | US20030098281 Contacting olefin stream with liquid absorbent consisting of a polyol, amine, amide, nitrile, heterocyclic nitrogen containing compound |
| 05/29/2003 | US20030097933 Adsorbents, method for the manufacture thereof and process for the separation of unsaturated hydrocarbons from gas mixture |
| 05/28/2003 | EP1246695A4 Carbide- and oxycarbide-based compositions, rigid porous structures including the same, and methods of making and using the same |
| 05/28/2003 | EP1157249A4 System and process for the recovery of propylene and ethylene from refinery offgases |
| 05/22/2003 | WO2003041832A1 Method for performing the purifying separation of crystals out of their suspension in a mother liquor |
| 05/22/2003 | US20030097032 Recovered from feedstock containing at least a higher diamondoid component; thermodynamically stable; for use in electronics, nanotechnology |
| 05/22/2003 | US20030097030 Process for producing branched olefins from linear olefin/paraffin feed |
| 05/22/2003 | US20030094398 Deethanizing cracked gas stream to produce a C2-stream and a C3+ stream; hydrogenating acetylene to produce ethylene; hydrogenating methylacetylene and propadiene to propylene and propane |
| 05/21/2003 | CN1419474A Shell catalysts, method for producing the same, and the use thereof |
| 05/20/2003 | US6565742 Extraction, distillation |
| 05/20/2003 | US6565653 Via crystallization of paraxylene feedstream; slurrying; reduces refrigeration requirements |
| 05/15/2003 | US20030091489 Process for the drying of a hydrocarbon stream |
| 05/15/2003 | US20030089305 Sublimation and purification method |
| 05/14/2003 | EP1310543A1 Process for the drying of a hydrocarbon stream |
| 05/14/2003 | EP1309528A1 Regeneration of hydrogen sulfide sorbents |
| 05/14/2003 | CN1418180A Process for removal of mapd from hydrocarbon streams |
| 05/14/2003 | CN1417177A Prepn process of high-purity m-pentadiene from C5 fraction as side product of petroleum cracking to produce ethylene |
| 05/14/2003 | CN1417176A Intelligent control method for ethylene rectifying tower of ethylene equipment |