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6207041 |
Process for converting heavy crude oil fractions, comprising an ebullating bed hydroconversion step and a hydrotreatment step
A process for converting a hydrocarbon fraction includes a step a) for treating a hydrocarbon feed in the presence of hydrogen in at least on three-phase reactor, containing at least one...
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6200462 |
Process for reverse gas flow in hydroprocessing reactor systems
A process for reverse gas flow to obtain high conversion, selective hydrotreating and product selectivity in hydroprocessing reactor systems is disclosed. In the integrated process, hydrogen...
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6190533 |
Integrated hydrotreating steam cracking process for the production of olefins
An integrated process for converting a hydrocarbon feedstock having components boiling above about 100° C. into steam cracked products is described. The process first involves passing the...
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6190535 |
Hydrocracking process
A catalytic hydrocracking process wherein a denitrification and desulfurization reaction zone effluent is heat-exchanged with a hydrogen-rich gaseous stream and introduced into a hydrocracking...
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6183627 |
Process and apparatus for upgrading hydrocarbon feeds containing sulfur, metals, and asphaltenes
Upgrading of a hydrocarbon feed containing sulfur, metals, and asphaltenes involves applying the feed to a distillation column for producing a substantially asphaltene-free, and metal-free...
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6179995 |
Residuum hydrotreating/hydrocracking with common hydrogen supply
An integrated residuum hydroconversion process which includes a residuum hydrotreater and a desulfurized oil hydrocracker produces high quantities of high quality middle distillate fuels....
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6171477 |
Hydroconversion of vacuum distillates and deasphalted oils in fixed beds and boiling beds
A process for the conversion of a hydrocarbon fraction comprising a step a) for treating a hydrocarbon charge in the presence of hydrogen in at least one reactor containing at least one...
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6153087 |
Process for converting heavy crude oil fractions, comprising an ebullating bed conversion step and a hydrocracking step
A process for converting a hydrocarbon fraction comprises a step a) for treating a hydrocarbon feed in the presence of hydrogen in at least one three-phase reactor, containing at least one...
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6153086 |
Combination cocurrent and countercurrent staged hydroprocessing with a vapor stage
A hydroprocessing process includes a cocurrent flow liquid reaction stage, a countercurrent flow liquid reaction stage and a vapor reaction stage in which feed components are catalytically...
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6149800 |
Process for increased olefin yields from heavy feedstocks
A process for upgrading petroleum feedstocks boiling in the distillate plus range, which feedstocks, when cracked, result in unexpected high yields of olefins. The feedstock is hydroprocessed in at...
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6123830 |
Integrated staged catalytic cracking and staged hydroprocessing process
Disclosed is a catalytic cracking process that includes more than one catalytic cracking reaction step. The process integrates catalytic cracking steps with hydroprocessing in order to maximize...
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6117306 |
Catalytic process for conversion of a petroleum residue using a fixed bed hydrodemetallization catalyst
A process for converting a heavy hydrocarbon fraction comprises treating the hydrocarbon feed in a hydrodemetallization section, the section containing at least one fixed bed hydrodemetallization...
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6103101 |
Process for producing lube base oils of high viscosity index and diesel oil of high cetaned number
A process is described for the hydroisomerization/hydrocracking of paraffinic streams to yield lube oils of viscosity index of at least 105 and pour point -6° C. or less, whereby a paraffinic feed...
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6103104 |
Multi-stage hydroprocessing of middle distillates to avoid color bodies
A process for hydroprocessing middle distillate petroleum streams in two temperature stages. The feedstream is hydroprocessed in two or more first temperature stages operated at a temperature from...
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6096190 |
Hydrocracking/hydrotreating process without intermediate product removal
A refinery stream such as a VGO is hydrocracking in a hydrocracking reaction zone within an integrated hydroconversion process. Effluent from the hydrocracking reaction zone is combined with a...
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6080302 |
Method for making a process oil by using aromatic enrichment with extraction followed by single stage hydrofinishing (LAW764)
A method for producing a process oil is provided in which an aromatic extract oil is added to a paraffinic rich feed to provide a blended feed. The blended feed is then extracted with an aromatic...
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6080382 |
Zeolite SSZ-48
The present invention relates to new crystalline zeolite SSZ-48 prepared using a decahydroquinolinium cation templating agent.
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6068757 |
Hydrodewaxing process
A process for catalytic hydrodewaxing of a wax-containing feed wherein the feed is subjected to hydrodewaxing conditions in a first reaction zone containing a wax-cracking catalyst, the effluent...
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6059955 |
Low viscosity lube basestock
The present invention is directed to an easily biodegradable low viscosity, low Noack volatility lube oil material having a viscosity index (VI) in the range of about 110-145, >98% saturates...
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6017443 |
Hydroprocessing process having staged reaction zones
A method and reactor for catalytic hydroprocessing liquid hydrocarbon feedstock at elevated temperatures and pressures for producing a liquid hydrocarbon product involves introducing the feedstock...
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6017441 |
Multi-step catalytic process for conversion of a heavy hydrocarbon fraction
A process for converting a heavy hydrocarbon fraction comprises treating the hydrocarbon feed in a hydroconversion section in the presence of hydrogen, the section comprising at least one...
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5980730 |
Process for converting a heavy hydrocarbon fraction using an ebullated bed hydrodemetallization catalyst
A process for converting a heavy hydrocarbon fraction comprises treating the hydrocarbon feed in a hydroconversion section in the presence of hydrogen, the section comprising at least one...
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5976354 |
Integrated lube oil hydrorefining process
In an integrated lube oil process, a lube oil stock is hydrotreated over a non-noble metal containing hydrotreating catalyst in an HDN/HDS unit to remove sulfur and nitrogen from the lube oil stock...
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5965104 |
Zeolite SSZ-43
The present invention relates to new crystalline zeolite SSZ-43 prepared using a substituted piperidinium or decahydroquinolinium cation templating agent.
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5961815 |
Hydroconversion process
The hydroconversion of heavy petroliferous stocks boiling mainly above 400° F. is carried out in a distillation column reactor where concurrently a petroleum stream is fed into a feed zone;...
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5954941 |
Jet engine fuel and process for making same
The invention concerns a jet engine fuel having the following characteristics: i) distilling range from 140 to 300° C.; ii) cis-decalin/trans-decalin ratio greater than 0.2; iii)...
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5954944 |
Process for hydrocracking heavy distillate oil under middle pressure
A process for producing middle distillates by hydrocracking a heavy distillate oil under middle pressure uses a hydrofining catalyst and a hydrocracking catalyst in series and once-through...
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5951848 |
Process for highly shape selective dewaxing which retards catalyst aging
This application discloses a process for catalytically dewaxing a feedstock whereby the aging of the dewaxing catalyst is minimized. A variety of feedstocks which possess moderate levels of...
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5906729 |
Process scheme for processing sour feed in isomerization dewaxing
This invention is directed to an improved process scheme to process sour feed in the reaction section of the process unit, including isomerization dewaxing with zeolite beta. The instant invention...
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5888376 |
Conversion of fischer-tropsch light oil to jet fuel by countercurrent processing
A process for converting a Fischer-Tropsch light oil stream to jet fuel by reacting said stream with a hydroisomerization catalyst in a reaction zone where the stream flows countercurrent to...
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5871635 |
Hydroprocessing of petroleum fractions with a dual catalyst system
Hydrocarbonaceous feedstocks admixed with a flow-through catalyst and hydrogen are hydroprocessed in a hydroprocessing reactor containing a captive hydroprocessing catalyst. The flow-through...
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5851381 |
Method of refining crude oil
A method of refining crude oil by distillation and desulfurization for the preparation of petroleum products can reduce cost of apparatus and cost of operation and can be operated with better...
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5846405 |
Process oils and manufacturing process for such using aromatic enrichment and two pass hydrofinishing
A method for producing a process oil is provided in which an aromatic extract oil is added to a napthenic rich feed. The combined feed is then hydrotreated in a first hydrotreating stage to convert...
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5741414 |
Method of manufacturing gas oil containing low amounts of sulfur and aromatic compounds
There is provided a method of manufacturing gas oil containing low-sulfur and low-aromatic-compound content, said method including a first step of putting distilled petroleum to contact with...
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5693191 |
Process for recovery of anhydrous hydrogen chloride from mixtures with non-condensable gases
A process is provided for the recovery of hydrogen chloride in anhydrous form from a dry (containing less than about 500 parts per million by weight of water) mixture of hydrogen chloride with one...
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5685972 |
Production of benzene, toluene, and xylene (BTX) from FCC naphtha
Cracked naphtha feeds such as FCC naphtha and coker naphtha are upgraded to produce chemical grade BTX (benzene, toluene, xylene with ethylbenzene) while co-producing a low sulfur gasoline of...
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5643441 |
Naphtha upgrading process
Low sulfur gasoline of relatively high octane number is produced from a thermally cracked sulfur-containing naphtha such as coker naphtha, by hydrodesulfurization followed by treatment over an...
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5624547 |
Process for pretreatment of hydrocarbon oil prior to hydrocracking and fluid catalytic cracking
Disclosed is a process for pretreatment of hydrocarbon feed containing sulfur and nitrogen compounds and aromatics prior to hydrocracking or fluid catalytic cracking which comprises: contacting...
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5599439 |
Gasoline and reformate upgrading process
A low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization followed by octane enhancing treatment in a...
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5580442 |
Method for producing feedstocks of high quality lube base oil from unconverted oil of fuels hydrocracker operating in recycle mode
A process is disclosed for producing feedstocks for manufacturing high quality lube base oil utilizing unconverted oil, which is produced from a fuels hydrocracker unit. The first step of the...
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5554275 |
Catalytic hydrodesulfurization and stripping of hydrocarbon liquid
A method and operating technique for treating organosulfur compound-containing aliphatic streams by introducing the light hydrocarbon stream at a top portion of a vertical stripping tower having an...
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5552033 |
Integrated process for increasing C.sub.6 to C.sub.8 aromatics content in reformate prepared from C.sub.9.sup.+ aromatics-containing feed
An integrated process for increasing C 6 to C 8 aromatics content in reformate prepared from C 9 + aromatics-containing feed comprises: 1) pretreating a raw naphtha feedstream containing C 9...
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5525209 |
Process for the improved production of middle distillates jointly with the production of high viscosity oils with high viscosity indices from heavy petroleum cuts
A process for the joint production of middle distillates and oil bases (viscosity index between 95 and 150) particularly from vacuum distillates and/or deasphalted oils, comprises a first step in...
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5512166 |
Process and apparatus for the continuous replacement of the catalyst in a moving-bed unit
A process for the simultaneous replacement of a first catalyst by a second catalyst which first catalyst is circulating as a moving bed of solid particles in a hydrocarbon treating unit, which unit...
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5510016 |
Gasoline upgrading process
A process for catalytically desulfurizing cracked fractions in the gasoline boiling range to acceptable sulfur levels uses an initial hydrotreating step to desulfurize the feed with some reduction...
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5503734 |
Hydrocarbon 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,...
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5500108 |
Gasoline upgrading process
Low sulfur gasoline of relatively high octane number is produced from a cracked, sulfur-containing olefinic naphthas by hydrodesulfurization followed by treatment over an acidic catalyst comprising...
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5470454 |
Process for the preparation of lubricating base oils
A process for the preparation of a lubricating base oil, comprising treating a hydrocarbonaceous product with hydrogen, at elevated temperature and pressure and in the presence of a catalyst, which...
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5439583 |
Sulfur removal systems for protection of reforming crystals
A process is disclosed for removing residual sulfur from a hydrotreated naphtha feedstock. The feedstock is contacted with molecular hydrogen under reforming conditions in the presence of a less...
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5413697 |
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...
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