| Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802) |
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| 02/20/2003 | US20030035769 Carbide and oxycarbide based compositions, rigid porous structures including the same, methods of making and using the same |
| 02/20/2003 | CA2456097A1 Optimization of heat removal in a gas-phase fluidized-bed process |
| 02/19/2003 | EP0966508B1 Process for purifying material flows |
| 02/19/2003 | EP0842241B1 Improved process for selective hydrogenation of highly unsaturated compounds and isomerization of olefins in hydrocarbon streams |
| 02/19/2003 | CN1397535A Denitrogenation method and appts. |
| 02/13/2003 | WO2002088148B1 Isoreticular metal-organic frameworks, process for forming the same, and systematic design of pore size and functionality therein,with application for gas storage |
| 02/13/2003 | US20030032850 Process for BTX purification |
| 02/13/2003 | US20030032832 Use of diamines and alkanolamines to inhibit unsaturated monomer polymerization |
| 02/13/2003 | US20030030035 Polymerization inhibitor for vinyl-containing materials |
| 02/13/2003 | US20030029191 Nitrogen rejection method and apparatus |
| 02/12/2003 | EP1282586A1 Method and device for treating a c4 fraction |
| 02/12/2003 | EP1282585A2 Diene removal from an olefin feedstock |
| 02/12/2003 | EP1282584A2 Removal of phosphorus-containing compounds from an olefin feedstock |
| 02/12/2003 | CN1101365C Substance mixturtes containing stablizes and compounds containing vinyl group |
| 02/11/2003 | US6518476 Manufacturing olefins such as ethylene and propylene from lower alkanes, that is, methane, ethane and/or propane, by oxidative dehydrogenation at elevated pressure. The olefins are selectively recovered from unconverted lower alkane feed |
| 02/11/2003 | US6517611 Olefin separations employing CTS molecular sieves |
| 02/06/2003 | US20030028064 Via supplying isomeric mixture to an adsorption column packed with Y-type zeolite |
| 02/06/2003 | US20030027947 Process for producing low polymer of ethylene |
| 02/05/2003 | EP1280749A1 Removal of phosphorus-containing impurities from an olefin feedstock |
| 02/05/2003 | EP1280745A1 Process for the production of gasoline stocks |
| 02/05/2003 | EP1127040B1 Methods and compositions for inhibiting polymerization of ethylenically unsaturated hydrocarbons |
| 02/04/2003 | US6514917 Molecular tags for organic solvent systems |
| 02/04/2003 | US6514897 nanorods having carbides and/or oxycarbides; catalyst supports for various catalysts such as hydrogenation, hydrodesulfurisation, hydrodenitrogenation, hydrodemetallisation, hydrodeoxygenation, hydrodearomatization, dehydrogenation, hydrogenolysis, isomerization, alkylation, dealkylation, oxidation |
| 02/04/2003 | CA2111354C Olefin oligomerization process |
| 01/30/2003 | US20030023121 As hydrogenation catalyst to selectively hydrogenate highly unsaturated hydrocarbons |
| 01/30/2003 | US20030019793 Mercaptan removal from petroleum streams (law950) |
| 01/30/2003 | US20030019241 Feed gas stream is cooled in a heat exchanger and rectified in higher and lower pressure columns, and then passed through a condenser-reboiler |
| 01/29/2003 | EP1278600A1 Shell catalysts, method for producing the same, and the use thereof |
| 01/29/2003 | CN1393507A Process for composite solvent for separating arylhydrocarbon by extraction and distillation |
| 01/29/2003 | CN1393430A Process for producing isobutene and methanol |
| 01/29/2003 | CN1393429A Method for producing isobutene and methanol |
| 01/29/2003 | CN1393405A Process for purifying and recovering ammonia gas |
| 01/28/2003 | US6512151 Process for the purification and production of a diolefin hydrocarbon stream |
| 01/23/2003 | US20030018229 Molecular sieve catalyst composition, its making and use in conversion processes |
| 01/23/2003 | US20030018228 Forming a slurry of the synthesized molecular sieve, a binder, and optionally a matrix material for catalytic converting a feedstock to olefin(s), preferably ethylene and/or propylene |
| 01/22/2003 | EP1278037A1 Nitrogen rejection method and apparatus |
| 01/22/2003 | EP0649387B2 Synthesis of zeolite films bonded to substrates, structures and uses thereof |
| 01/22/2003 | CN1392127A Styrene polymerization inhibitor and use |
| 01/22/2003 | CN1392126A Use of 2,6-dinitro p-cresol in preparing styrene as rectifying polymerization inhibitor |
| 01/22/2003 | CN1099313C Method for forming spheriodal adsorbent used for adsorption stripping xylene |
| 01/21/2003 | US6509292 Process for selective hydrogenation of acetylene in an ethylene purification process |
| 01/21/2003 | CA2072487C Process for preparing alkylbenzene |
| 01/16/2003 | WO2003004444A1 Inhibiting catalyst coke formation in the manufacture of an olefin |
| 01/16/2003 | US20030013933 Decomosition of methyl tert-butyl ether in the presence of a solid acid catalyst |
| 01/15/2003 | EP1275920A1 Nitrogen rejection method and apparatus |
| 01/15/2003 | EP1275632A2 Method for concentrating 2,6-dimethylnaphthalene in a dimethylnaphthalene mixture |
| 01/15/2003 | CN1390627A Variable adsorption process for separating methane/nitrogen gas mixture with large-surface activated carbon |
| 01/09/2003 | WO2002090301A3 Crystallisation process for producing very pure para-xylene |
| 01/09/2003 | US20030009063 Process for producing isobutylene and methanol |
| 01/09/2003 | US20030008981 Adding aminophenol compound and nitroxyl radical compound for polymerization inhibition of olefins and diolefins |
| 01/08/2003 | EP1119533B1 Styrene monomer polymerization inhibition using substituted dihydroxyarenes and nitroxides |
| 01/08/2003 | CN1098241C Recovering process for C2 and C3 material from stopped ethylene plant |
| 01/07/2003 | CA2092534C Benzoquinoneimines as vinyl aromatic polymerization inhibitors |
| 01/02/2003 | US20030004386 Method of separating dimethyl ether from an olefin stream |
| 01/02/2003 | US20030004385 Process of treating an olefin isomerization catalyst and feedstock |
| 01/02/2003 | US20030004364 Isoreticular metal-organic frameworks, process for forming the same, and systematic design of pore size and functionality therein, with application for gas storage |
| 01/02/2003 | US20030004056 Treatment of acid catalysts |
| 01/02/2003 | EP1268716A1 Method for inhibiting the plugging of conduits by gas hydrates |
| 01/02/2003 | EP1268705A1 Heat transfer fluid based on polyphenylmethanes exhibiting improved thermal stability |
| 01/02/2003 | EP1268372A1 Process for the removal of mapd from hydrocarbon streams |
| 01/02/2003 | EP0906256B1 Unsaturated hydrocarbon separation and recovery process |
| 01/01/2003 | CN1388351A Nitrogen gas removing method |
| 01/01/2003 | CN1097478C Catalyst comprising at least hydrogenation metal component and swelling clay |
| 12/31/2002 | US6500998 Aromatic alkylation process using UZM-5 and UZM-6 aluminosilicates |
| 12/31/2002 | US6500996 Process for BTX purification |
| 12/31/2002 | US6500404 Microporous crystalline material of zeolitic nature named itq-3 |
| 12/31/2002 | US6500233 Purification of p-xylene using composite mixed matrix membranes |
| 12/26/2002 | US20020194866 Introgen rejection method |
| 12/19/2002 | WO2002100533A1 Method for the production of adsorption agent granules based on acid-activated laminar silicates and use thereof as catalyst |
| 12/19/2002 | US20020193651 Methods and systems for purifying styrene feedstock comprising use of low palladium catalyst |
| 12/19/2002 | US20020193649 Synthesis of high quality normal alpha olefins |
| 12/19/2002 | US20020193648 Processes for the purification of higher diamondoids and compositions comprising such diamondoids |
| 12/19/2002 | US20020190238 Stabilization of monomers by compositions based on alkylhydroxylamines |
| 12/18/2002 | CN1096441C Compression method of ethylenically unsaturated monomers and method for preparing copolymer |
| 12/18/2002 | CN1096440C Improved chemical absorption process for recovering olefins from cracked gases |
| 12/17/2002 | US6495732 Olefin isomerization process |
| 12/17/2002 | US6495710 Synthesis and use of dimethyl 1,5-naphthalenedicarboxlyates and intermediates therefrom |
| 12/12/2002 | US20020188163 Obtaining diamondoid compositions enhanced in tetramantane components and other higher diamondoid components from a hydrocarbon feedstock; involves distillation and pyrolysis |
| 12/12/2002 | US20020185413 Method for reducing organic fluoride levels in hydrocarbons |
| 12/12/2002 | US20020185056 Energy efficient process for producing high purity paraxylene |
| 12/12/2002 | DE10127927A1 Production of adsorption agent granules, useful as catalysts for the treatment of aromatic compounds or mixtures, comprises removal of specified amount of the initial amount of the aluminum oxide content. |
| 12/11/2002 | EP1264816A1 Integrated process for the production of 2,6-dimethylnaphthalene |
| 12/11/2002 | CN1384085A Method and system of purifying styrene material with catalyst containing small amount of palladium |
| 12/11/2002 | CN1095818C Process for separating p-xylene with hydrophobic silicic zeolite by selective adsorption |
| 12/10/2002 | US6492568 Removal of phosphorus-containing compounds from an olefin feedstock |
| 12/10/2002 | US6491888 pH control method of reducing nitrogen oxides emission |
| 12/05/2002 | WO2002096804A2 Processes for the purification of higher diamondoids and compositions comprising such diamondoids |
| 12/05/2002 | US20020179209 Lead-and barium-free propellant charges |
| 12/05/2002 | DE10124962A1 Katalysatoren für die Reinigung von Ethylen Catalysts for the purification of ethylene |
| 12/05/2002 | CA2435407A1 Processes for the purification of higher diamondoids and compositions comprising such diamondoids |
| 12/04/2002 | EP1261571A1 A method for removing polymer from an acid gas treating system |
| 12/04/2002 | EP1200378A4 Process for the separation of isobutene from normal butenes |
| 12/04/2002 | EP0902795B1 Method and products to absorb oil and organic solvents from water and from sea |
| 12/04/2002 | CN1382672A Intelligent control method of propene rectifying tower in ethylene equipment |
| 12/04/2002 | CN1382671A Process for preparing ester from acetic acid and chlorine gas by cyanation in advance |
| 12/03/2002 | US6489527 Alkylating substantially all isomers of xylene other than para-xylene in mixture of xylene isomers with alkylating agent, separating para-xylene in at least 99.5 wt. % purity and at least greater than concentration in mixture |
| 12/03/2002 | US6489526 Method for synthesis of hydrocarbyl bridged indenes |
| 12/03/2002 | US6488856 Process for purifying a liquid hydrocarbon product |
| 12/03/2002 | US6488840 Longer chain mercaptans above five carbon atoms; phase transfer catalyst is a quaternary ammonium hydroxide |
| 11/28/2002 | WO2002094763A1 Methods and compositions for inhibiting polymerization of vinyl monomers |