| Patents for C07C 4 - Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms (5,080) | 
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| 04/10/2003 | US20030069460 Methastasizing a cycloalkamonoene, a cyclopolyene, an acyclic polyene or mixtures in the liquid phase, in the presence of a shaped supported catalyst containing rhenium oxide(Re2O7) gamma-aluminum oxide(Al2O3)to form cycloalkadiene | 
| 04/10/2003 | US20030069459 Integrated process for the production of 2, 6-dimethylnaphthalene | 
| 04/03/2003 | US20030065234 Metathesis catalysts | 
| 04/03/2003 | US20030062291 Passing olefins through a reactor containing a crystalline silicate selected from an MFI-type and an MEL-type zeolite; producing an effluent with an olefin content of lower molecular weight than that of the feedstock | 
| 04/02/2003 | EP1296894A1 Ultrastable porous aluminosilicate structures | 
| 04/02/2003 | CN1406913A Cyclic diolefine preparation | 
| 04/02/2003 | CN1406910A Heterotopic catalyst | 
| 04/02/2003 | CN1104402C Hydrocarbon conversion method using large crystal zeolite catalyst | 
| 04/01/2003 | US6540905 Hydrocracking in a hydrocracking zone a hydrocarbonaceous feedstock to obtain an effluent comprising a hydrocracked oil, and catalytically dewaxing effluent | 
| 04/01/2003 | CA2279593C A method of providing heat | 
| 03/26/2003 | EP1019344B1 Improvements in a method of reclaiming styrene and other products from polystyrene based materials | 
| 03/26/2003 | CN1406254A Process for producing poly propylene from C3 olefins selectively produced in a fluid catalytic cracking process from a naphtha/steam feed | 
| 03/26/2003 | CN1406253A Process for producing polypropylene from C3 olefins selectively produced in a fluid catalytic cracking process | 
| 03/26/2003 | CN1406252A Process for producing polypropylene from C3 olefins selectively produced in a fluid catalytic cracking process | 
| 03/18/2003 | US6533923 Trioctahedral phyllosilicates 2:1 of a stevensite or kerolite type modified post-synthesis, method of preparation and use in catalysis | 
| 03/12/2003 | EP1289887A1 Process for selectively producing c3 olefins in a fluid catalytic cracking process | 
| 03/12/2003 | EP1289885A1 Zeolite ssz-53 | 
| 03/12/2003 | EP0877781B1 Shape selective zeolite catalyst and its use in aromatic compound conversion | 
| 03/12/2003 | CN1402771A Naphtha cracking and hydroprocessing process for low emissions, high octane fuels | 
| 03/12/2003 | CN1402770A Process for selectively producing light olefins | 
| 03/05/2003 | EP1288181A2 Process to prepare cycloalkadienes via a metathesis reaction and catalyst used therein | 
| 03/05/2003 | EP1288180A2 Process to prepare cycloalkadienes via a metathesis reaction | 
| 03/05/2003 | EP1287093A2 Process for selectively producing c?3 olefins in a fluid catalytic cracking process | 
| 03/05/2003 | EP1287092A2 Process for selectively producing propylene in a fluid catalytic cracking process | 
| 03/05/2003 | CN1102562C Olefin skeleted isomerization process | 
| 03/04/2003 | US6528450 Catalyst composition and processes therefor and therewith | 
| 02/28/2003 | CA2399564A1 Metathesis catalysts | 
| 02/28/2003 | CA2399560A1 Process for preparing cycloalkadienes | 
| 02/26/2003 | CN1399670A Coking reduction in cracking reactors | 
| 02/26/2003 | CN1102075C Zeolite catalyst and its use in hydrocarbon conversion | 
| 02/19/2003 | EP1283857A1 Pyrolysis tube and pyrolysis method for using the same | 
| 02/19/2003 | EP1112241B1 Process for the production of olefins | 
| 02/12/2003 | EP1283254A1 Hydrocarbon cracking process in which a protective layer for a steel portion of the reactor is used | 
| 02/05/2003 | CN1395609A Method for producing C2 and C3 olefins of hydrocarbons | 
| 02/04/2003 | CA2111354C Olefin oligomerization process | 
| 01/23/2003 | WO2003006370A1 Zeolite ssz-58 | 
| 01/23/2003 | WO2003006369A1 Zeolite ssz-60 | 
| 01/21/2003 | US6509289 Hydrodealkylation process and catalyst composition | 
| 01/08/2003 | CN1389444A Prepn. of high-purity cyclopentadiene and dicyclopentadiene | 
| 01/08/2003 | CN1098241C Recovering process for C2 and C3 material from stopped ethylene plant | 
| 01/07/2003 | US6504076 Nickel, palladium or platinum-modified mordenite catalyst; those in the C8-C12 range, into more valuable aromatics of benzene, toluene and xylene; constant reaction severity conditions and maintaining those conditions; toluene | 
| 01/01/2003 | CN1097478C Catalyst comprising at least hydrogenation metal component and swelling clay | 
| 12/31/2002 | US6500997 Catalysts and processes for the conversion of aromatic hydrocarbons and uses thereof in the production of aromatic hydrocarbons | 
| 12/31/2002 | US6500404 Microporous crystalline material of zeolitic nature named itq-3 | 
| 12/26/2002 | US20020197190 Preparation of propene and, if desired, 1-butene | 
| 12/25/2002 | CN1387558A Multiple feed process for production of propylene | 
| 12/25/2002 | CN1386729A Resultant of cracking polystyrene and its preparing process and application | 
| 12/25/2002 | CN1386728A Method for conversion of heavy arene | 
| 12/19/2002 | US20020193648 Processes for the purification of higher diamondoids and compositions comprising such diamondoids | 
| 12/18/2002 | EP1265699A1 Method for carrying out a metathesis reaction of unsaturated organic compounds | 
| 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 | US20020187891 Zeolite catalyst and use for hydrocarbon conversion | 
| 12/12/2002 | US20020187098 Prepared using n cationic structure directing agent, such an ammonium or phosphonium salt; acid catalysts for fluidized bed catalytic cracking and the hydrocracking of petroleum oils | 
| 12/11/2002 | EP1264816A1 Integrated process for the production of 2,6-dimethylnaphthalene | 
| 12/05/2002 | WO2002096804A2 Processes for the purification of higher diamondoids and compositions comprising such diamondoids | 
| 12/05/2002 | US20020183192 For use in catalytic cracking, alkylation, disproportional of toluene, isomerization, and transalkylation reactions | 
| 12/05/2002 | US20020182144 Acid catalyst; fluidized beds; catalytic cracking | 
| 12/05/2002 | US20020182143 Acid catalyst; fluidized beds; catalytic cracking | 
| 12/05/2002 | US20020179491 Catalytic cracking using Sapo catalyst | 
| 12/05/2002 | CA2435407A1 Processes for the purification of higher diamondoids and compositions comprising such diamondoids | 
| 12/04/2002 | EP1261649A2 Process for producing polypropylene from c3 olefins selectively produced in a fluid catalytic cracking process from a naphtha/steam feed | 
| 12/04/2002 | EP1261648A2 Process for producing polypropylene from c3 olefins selectively produced in a fluid catalytic cracking process | 
| 12/04/2002 | CN1383448A Process for selectively producing C3 olefins in fluid catalytic cracking process | 
| 12/03/2002 | US6488839 Process and furnace for steam-cracking a feedstock that contains ethane and/or propane | 
| 11/28/2002 | US20020177743 Diamondoids | 
| 11/28/2002 | US20020175110 Process for the production of propylene from olefinic streams | 
| 11/27/2002 | EP1260493A1 Method of conversion of heavy aromatics | 
| 11/27/2002 | EP1259555A2 Process for producing polypropylene from c3 olefins selectively produced in a fluid catalytic cracking process | 
| 11/27/2002 | EP1259318A2 Iron, cobalt and/or nickel containing alpo bound sapo molecular sieve catalyst for producing olefins | 
| 11/27/2002 | EP1114013B1 On-line synthesis and regeneration of a catalyst used in autothermal oxidation | 
| 11/26/2002 | US6486373 Shape selective zeolite catalyst and its use in aromatic compound conversion | 
| 11/20/2002 | EP1115491A4 Catalyst complex with carbene ligand | 
| 11/20/2002 | CN1380899A Process for selectively proudcing C3 olefins in fluid catalytic cracking process | 
| 11/20/2002 | CN1380898A Process for selectively producing propylene in fluid catalytic cracking process | 
| 11/19/2002 | CA2068026C A process for the production of isoparaffins | 
| 11/14/2002 | US20020169350 Process for selectively producing light olefins | 
| 11/13/2002 | CN1379698A Zeolite bound catalyst containing at least three different zeolites, and use for hydrocarbon conversion | 
| 11/12/2002 | US6479719 Method and reactor for making norbornene | 
| 10/31/2002 | WO2002085623A1 Pyrolysis heater | 
| 10/30/2002 | EP1252262A1 Method for producing c 2? and c 3? olefins of hydrocarbons | 
| 10/30/2002 | EP1252258A1 Process for selectively producing high octane naphtha | 
| 10/24/2002 | US20020155046 For the steam cracking of paraffins to produce olefins | 
| 10/17/2002 | WO2002081595A1 Atomized polysulfide used in ethylene steam cracker | 
| 10/17/2002 | US20020150533 Synthesis of ZSM-12 | 
| 10/17/2002 | CA2443139A1 Atomized polysulfide used in ethylene steam cracker | 
| 10/16/2002 | CN1374282A Technological process of producing 2,3-dimethyl-2-butene from mixed C6 olefin | 
| 10/15/2002 | US6464838 Process for the recovery of compounds present in the heavy products after their preparation | 
| 10/10/2002 | US20020147373 Compositions comprising octamantanes and processes for their separation | 
| 10/08/2002 | US6461580 Using zeolite SSZ-58 for reduction of oxides of nitrogen in a gas stream | 
| 10/03/2002 | US20020139295 Compositions comprising undecamantanes and processes for their separation | 
| 10/02/2002 | EP1244760A1 Process for selectively producing light olefins | 
| 10/02/2002 | EP1040089B1 Meta-xylene production process | 
| 09/26/2002 | WO2002074721A1 Process for pyrolyzing a light feed | 
| 09/26/2002 | WO2002057201A3 Polymerizable higher diamondoid derivatives | 
| 09/26/2002 | WO2000013788A3 A polyvalent bifunctional catalyst and the process of realisation of such a catalyst | 
| 09/26/2002 | US20020134301 Compositions comprising pentamantanes and processes for their separation | 
| 09/26/2002 | US20020134018 Pyrolysis | 
| 09/26/2002 | EP1144110A3 A polyvalent bifunctional catalyst and the process of realisation of such a catalyst | 
| 09/26/2002 | CA2440848A1 Process for pyrolyzing a light feed | 
| 09/24/2002 | US6455750 Catalytic or thermocracking aliphatic hydrocarbons using zeolite pore/size catalysts in fluidized beds; addition polymerization |