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| Number | Title | Issue Date |
| 7531083 | Cycloalkane base oils, cycloalkane-base dielectric liquids made using cycloalkane base oils, and methods of making same Cycloalkane base oil, methods of making cycloalkane base oil, and dielectric liquid comprising cycloalkane base oil, the cycloalkane base oil comprising a quantity of isoparaffins and from 50 wt. % to 70 wt. % cycloalkanes having the formula CnH2n | 05/12/2009 |
| 7361624 | Catalyst for hydrotreating gas oil, process for producing the same, and method for hydrotreating gas oil A catalyst for hydrotreating gas oil, which comprises an inorganic oxide support having provided thereon: at least one selected from metals in the Group 6 of the periodic table at from 10 to 30% by weight, at least one selected from metals in the Group 8 of the peri... | 04/22/2008 |
| 7338645 | Method and system for reducing decomposition byproducts in a methanol to olefin reactor system Disclosed is a method and system for reducing the formation of metal catalyzed side-reaction byproducts formed in the feed vaporization and introduction system of a methanol to olefin reactor system by forming and/or coating one or more of the heating devices, feed ... | 03/04/2008 |
| 7314964 | Catalytic naphtha cracking catalyst and process A process is disclosed for enhancing the production of light olefins using a catalyst with small pores. The catalyst comprises a molecular sieve having 10 membered rings with channels of limited length. The molecular sieve has a high silica to alumina ratio and has ... | 01/01/2008 |
| 7285205 | Process of regenerative reforming In a regenerative reforming facility using a series of moving beds, a direct supply of regenerated catalyst, optionally reduced is passed into at least two of the reactors of the series. Spent catalysts from different reactors are passed into a common mixing apparat... | 10/23/2007 |
| 7201708 | Machine-assisted exercising An exercise machine in which a fan has a rotor that generates drag by causing air to move in response to exercising by a user. A deflection structure deflects air that the rotor has moved and is adjustable to control the amount of drag generated by the rotor. ... | 04/10/2007 |
| 7112307 | Riser reactor system for hydrocarbon cracking A riser reactor system for conversion of hydrocarbon feedstock to ethylene and propylene is described. The riser reactor system prevents riser reactors with a plurality of inlet ports for feeding gases having different compositions and for controlling the residence ... | 09/26/2006 |
| 7074976 | Propylene production A method for making propylene from alpha olefins, internal linear olefins and isoolefins wherein the alpha olefins are subjected to a combination of hydrogenation and double bond isomerization to form additional internal linear olefins, the internal linear olefins a... | 07/11/2006 |
| 7034196 | Method and apparatus for reducing decomposition byproducts in a methanol to olefin reactor system Disclosed is a method and apparatus for reducing the amount of metal catalyzed side-reaction byproducts formed in the feed vaporization and introduction system of a methanol to olefin reactor system by monitoring and/or maintaining the temperature of at least a port... | 04/25/2006 |
| 7008595 | Resid cracking apparatus with catalyst and adsorbent regenerators and a process thereof This invention provides a resid cracking apparatus comprising a riser, reactor, stripper cum separator with adjustable outlets in flow communication with adsorbent and catalyst regenerators for converting hydrocarbon residues containing higher concentration of conra... | 03/07/2006 |
| 6869521 | Process and apparatus for upgrading FCC product with additional reactor with thorough mixing A process and apparatus are disclosed contacting hydrocarbon feed with catalyst in a reactor vessel under conditions more vigorous than bubbling bed conditions and preferably fast fluidized flow conditions. The vigorous conditions assure thorough mixing of catalyst ... | 03/22/2005 |
| 6866771 | Process and apparatus for upgrading FCC product with additional reactor with catalyst recycle A process and apparatus is disclosed for contacting feed with mixed catalyst in a secondary reactor that is incorporated into an FCC reactor. The mixed catalyst used in the secondary reactor is regenerated catalyst from a regenerator that regenerates spent catalyst ... | 03/15/2005 |
| 6667270 | Bismuth-and phosphorus-containing catalyst support, reforming catalysts made from same, method of making and naphtha reforming process Bismuth- and phosphorus-containing catalyst supports, naphtha reforming catalysts made from such supports, methods of making both support and catalyst, and a naphtha reforming process using such catalysts.... | 12/23/2003 |
| 6495028 | Catalytic conversion process for producing isobutane and isoparaffin-enriched gasoline A process for catalytic conversion of hydrocarbon feedstock to produce isobutane and isoparaffin-enriched gasoline which comprises two different reactions, the preheated feedstock is contacted with hot regenerated catalyst in the lower part of a reactor w... | 12/17/2002 |
| 6433235 | Method for converting methane-containing gaseous hydrocarbon mixtures to liquid hydrocarbons An improved process for the conversion of normally gaseous methane-containing hydrocarbon mixtures, such as natural gas, to a normally liquid hydrocarbon product comprises separating the methane component of the gaseous mixture from the heavier hydrocarbo... | 08/13/2002 |
| 6238548 | FCC process for upgrading gasoline heart cut An FCC process converts a secondary feed comprising a heart cut of a gasoline product stream with spent catalyst at mild conditions to obtain a surprising increase in the octane number of the resulting gasoline product. More surprisingly, the increase in ... | 05/29/2001 |
| 6187982 | Process for converting dienes and oxygenates to para-xylene and light olefins A process useful in steam cracking is disclosed for selectively converting a feed comprising C4 + dienes and oxygenate to a product comprising increased C2 + monoolefins and para-xylene levels by contacting said feed under diolefin c... | 02/13/2001 |
| 6123832 | Fluid catalytic cracking process for converting hydrocarbon mixtures The invention relates to Fluid Catalytic Cracking (FCC) for producing liquid fuels and light olefins from liquid hydrocarbon mixtures such as petroleum fractions.... | 09/26/2000 |
| 5481052 | Polymer cracking This invention relates to a process for cracking waste polymers in a fluidized bed reactor to produce vaporous products comprising primary products which can be further processed, eg in a steam cracker to produce olefins, characterized in that the vaporou... | 01/02/1996 |
| 5338436 | Dewaxing process There is provided a process for dewaxing a hydrocarbon feedstock, wherein the effluent from a dewaxing reaction zone is passed over an oligomerization catalyst under conditions sufficient to oligomerize olefins in this effluent. The temperature of the oli... | 08/16/1994 |
| 5318689 | Heavy naphtha conversion process A straight run naphtha is fractionated to yield on intermediate naphtha and the heaviest 10 vol % as heavy naphtha. The intermediate naphtha is catalytically reformed to yield reformed naphtha having a 90 vol % temperature (T90) of 310° F. (155° C.). Th... | 06/07/1994 |
| 5298150 | Gasoline upgrading process Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization followed by treatment over an acidic catalyst comprising a zeolite sorbing 10 to 40 mg 3-methylpentane at 90°... | 03/29/1994 |
| 5234575 | Catalytic cracking process utilizing an iso-olefin enhancer catalyst additive The invention relates to improving the selectivity of the production of isobutylene or 2-methylpropene during fluid catalytic cracking of heavy C9 + aromatic containing feeds including resids and/or gas oils by employing two catalyst components... | 08/10/1993 |
| 5234576 | Iso-olefin production The present invention discloses a process for increasing the selectivity of the production of isobutylene in an admixture of C4 olefins, in a process comprising producing isobutylene, with high selectivity, comprising catalytically producing a ... | 08/10/1993 |
| 5232580 | Catalytic process for hydrocarbon cracking using synthetic mesoporous crystalline material A process for naphtha cracking employing new synthetic catalyst of ultra-large pore crystalline material. The new crystalline material exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 gram... | 08/03/1993 |
| 5110446 | Integrated products separation from fluid catalytic cracking and aromatization processes The present invention provides a process for decreasing the energy consumption of a catalytic cracking process product recovery section while improving gasoline yield by integrating multistage vapor compression and product recovery with deacidification an... | 05/05/1992 |
| 5100534 | Hydrocarbon cracking and reforming process An improved process for upgrading paraffinic naphtha to high octane fuel by contacting a naphtha feedstock, such as virgin naphtha feedstock stream containing predominantly C7 -C12 alkanes and naphthenes, with solid medium pore acid ... | 03/31/1992 |
| 5053579 | Process for upgrading unstable naphthas A process for upgrading of unstable olefins, naphthas, and dienes, such as coker naphthas, is disclosed. The olefins in the unstable naphthas are oligomerized over a shape selective zeolite to gasoline and distillate products. The dienes are catalytically... | 10/01/1991 |
| 5021143 | Process of fractionation and extraction of hydrocarbons allowing obtaining a cut of increased octane index and a kerosene of improved smoke point The invention relates to a process for hydrocarbon fractionation and extraction making it possible to obtain a petrol with an improved octane number and a kerosene with an improved smoke point. According to the invention a charge with a final boiling point of ... | 06/04/1991 |
| 4981574 | Dewaxing process A process is disclosed for dewaxing a waxy hydrocarbon feedstock and for upgrading the olefinic interstage by-product to a high-octane gasoline blending stream. Waxy hydrocarbon feedstock is catalytically dewaxed until the catalyst is deactivated. Hydroge... | 01/01/1991 |
| 4973790 | Process for upgrading light olefinic streams A process for oligomerizing C2 to C10 olefins obtained by catalytic cracking of heavy crude oil is disclosed. The olefins are oligomerized in the presence of added hydrogen over a shape selective zeolite to gasoline and distillate products. Feed pretreatm... | 11/27/1990 |
| 4966680 | Integrated catalytic cracking process with light olefin upgrading Process and apparatus for upgrading light olefinic crackate gas from a fluidized catalytic cracking unit having a riser reactor for contacting hot solid cracking catalyst with a heavy hydrocarbon feedstock, said light crackate gas containing ethene, prope... | 10/30/1990 |
| 4950387 | Upgrading of cracking gasoline A process is disclosed for increasing the octane number of an FCC unit gasoline pool by upgrading selected gasoline boiling-range streams. FCC gasoline is mixed with the feed to a light olefin upgrading reactor. Upgraded gasoline is then fractionated in a... | 08/21/1990 |
| 4906353 | Dual mode hydrocarbon conversion process A dual-mode hydrocarbon conversion process is provided which comprises reforming a sulfur-, nitrogen- and/or olefin-containing hydrocarbon feedstock, e.g. an FCC gasoline, in a conversion unit operated under reforming conditions employing as catalyst a no... | 03/06/1990 |
| 4892643 | Upgrading naphtha in a single riser fluidized catalytic cracking operation employing a catalyst mixture The present invention discloses a catalytic cracking operation featuring a single riser in which a variety of hydrocarbon conversion reactions takes place, a stripping unit in which entrained hydrocarbon material is removed from catalyst and a regeneratio... | 01/09/1990 |
| 4874503 | Multiple riser fluidized catalytic cracking process employing a mixed catalyst A catalytic cracking process is described featuring multiple risers in which a variety of hydrocarbon conversion reactions takes place, a stripping unit in which entrained hydrocarbon material is removed from catalyst and a regeneration zone in which spen... | 10/17/1989 |
| 4865718 | Maximizing distillate production in a fluid catalytic cracking operation employing a mixed catalyst system A fluid catalytic cracking method which comprises: (a) cracking a hydrocarbon feed stock in the presence of a mixed catalyst system which comprises particles of a first, amorphous cracking catalyst and/or large crystalline cracking catalyst component which req... | 09/12/1989 |
| 4830728 | Upgrading naphtha in a multiple riser fluid catalytic cracking operation employing a catalyst mixture A catalytic cracking process is provided featuring multiple risers in which a variety of hydrocarbon conversion reactions take place, a stripping unit in which entrained hydrocarbon material is removed from catalyst and a regeneration zone in which spent ... | 05/16/1989 |
| 4826586 | Single riser fluidized catalytic cracking process utilizing a C3-4 paraffin-rich co-feed and mixed catalyst system There is provided a catalytic cracking operation featuring a single riser reaction zone having a lower and an upper section wherein a variety of hydrocarbon conversion reactions takes place, a stripping zone in which entrained hydrocarbon material is remo... | 05/02/1989 |
| 4822477 | Integrated process for gasoline production An improvement in gasoline octane without substantial decrease in overall yield is obtained in an integrated process combining a fluidized catalytic cracking reaction and a fluidized catalyst olefin oligomerization reaction when crystalline medium pore sh... | 04/18/1989 |
