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Class 208/73 - Catalyst in at least one stage


Subclass of Class 208 - Mineral oils: processes and products
Definition: Processes wherein at least one of the cracking steps takes
No. of patents: 41
Last issue date: 01/15/2008


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NumberTitleIssue Date
7318845Compact distillates fuel processor with effective sulfur removal process
A distillate fuel steam reformer system in which a fuel feed stream is first separated into two process streams: an aliphatics-rich, sulfur-depleted gas stream, and an aromatics- and sulfur-rich liquid residue stream. The aliphatics-rich gas stream is desulfurized, ...
01/15/2008
7316773Catalytic cracking process and the device used therein
The present invention relates to a catalytic cracking process and a device used in the process in particular, the present invention provides a catalytic cracking process, which comprises which comprises: 1) catalytic cracking a fee...
01/08/2008
7288690Method and apparatus for steam cracking hydrocarbons
A method and apparatus for steam cracking hydrocarbons, which method consists in heating a mixture of hydrocarbons and steam to a desired temperature that is high enough to crack the hydrocarbons and transform them into olefins, the source of energy needed for heati...
10/30/2007
7270743Products produced form rapid thermal processing of heavy hydrocarbon feedstocks
The present invention is directed to the upgrading of heavy hydrocarbon feedstock that utilizes a short residence pyrolytic reactor operating under conditions that cracks and chemically upgrades the feedstock. The process of the present invention provides for the pr...
09/18/2007
7160437Method for determining the source of fouling in thermal conversion process units
The present invention relates to a method for determining the source of fouling in petroleum thermal conversion process units. More particularly, the invention distinguishes whether fouling occurs due to feed entrainment of small feed droplets or vapor phase condens...
01/09/2007
6352638Two-stage process for converting residua to gasoline blendstocks and light olefins
A two-stage process for converting petroleum residua and other low value oils to high valued gasoline blendstocks and light olefins. The first stage is comprised of a thermal process unit containing a reaction zone comprised of a horizontal moving bed of ...
03/05/2002
6307117Method for producing ethylene and propylene
Disclosed is a method for producing ethylene and propylene from a hydrocarbon feedstock by catalytic conversion, which comprises contacting, in a reactor, a hydrocarbon feedstock comprising 20% by weight or more, based on the weight of the hydrocarbon fee...
10/23/2001
6033555Sequential catalytic and thermal cracking for enhanced ethylene yield
The invention provides a process for improving the conversion of a hydrocarbon feedstock to light olefins comprising the steps of first contacting the hydrocarbon feedstock with a light olefin producing cracking catalyst and subsequently thermally crackin...
03/07/2000
5681450Reduced chaos cyclone separation
A cyclone and process for fluidized catalytic cracking of heavy oils is disclosed. Gas and entrained solids are added around a clean gas outlet tube in a cyclone body. Solids and some gas are withdrawn via a solids outlet and discharged into a catch chamb...
10/28/1997
5506365Process and apparatus for fluidized-bed hydrocarbon conversion
The invention relates to a process for the conversion of petroleum hydrocarbons in the presence of catalyst particles in a fluidized phase in an essentially upflow or downflow tubular reaction zone. The process includes at least one stage of steam crackin...
04/09/1996
5498326Process for and apparatus for catalytic cracking in two successive reaction zones
The invention relates to a process for catalytic cracking and the associated apparatus in which the cracking reaction takes place in two substantially vertical and successive reaction zones, the loads being introduced into the first zone where it circulat...
03/12/1996
5414169Method of obtaining hydrocarbon oil from waste plastic material or waste rubber material and apparatus for carrying out the method
A method of obtaining hydrocarbon oil from waste plastic material or waste rubber material, comprising the steps of: subjecting the waste plastic material or the waste rubber material to thermal cracking so as to obtain a thermal cracking product; liquefy...
05/09/1995
5372704Cracking with spent catalyst
A process and apparatus for low cracking or recracking of liquid hydrocarbons with FCC catalyst containing 0.2 to 1.5 wt % coke is disclosed. FCC naphtha, or a thermally or hydrocracked naphtha, contacts spent FCC catalyst in a naphtha recracking reactor ...
12/13/1994
5264115Process and apparatus for fluidized bed hydrocarbon conversion
The invention relates to a process for the conversion of petroleum hydrocarbons in the presence of catalyst particles in a fluidized phase in an essentially upflow or downflow tubular reaction zone, said process comprising at least one stage of steam crac...
11/23/1993
5160603Catalytic cracking with sulfur compound added to the feed
A catalytic cracking process for heavy metals and asphaltene containing feed is disclosed. A reactive sulfur compound, preferably H2 S, is dissolved in the heavy feed and then kept at a temperature and for a time sufficient to at least partiall...
11/03/1992
5154818Multiple zone catalytic cracking of hydrocarbons
Methods for the fluidized catalytic cracking of plural hydrocarbon feedstocks in a riser reactor are disclosed. The processes generally comprises contacting a relatively light hydrocarbon feedstock in a first reaction zone with a first catalyst stream com...
10/13/1992
5059302Method and apparatus for the fluid catalytic cracking of hydrocarbon feed employing a separable mixture of catalyst and sorbent particles
The present invention features the use of a particulate sorbent and a particulate FCC catalyst, which are physically separable, sequentially in the same FCC riser, followed by separation of commingled spent catalyst and sorbent particles from vapors, and ...
10/22/1991
5024750Process for converting heavy hydrocarbon oil
Heavy hydrocarbon oil, containing asphaltene, sulfur and metal contaminants, is hydrotreated in the presence of a hydrotreating catalyst having a small pore diameter in an initial process step to remove sulfur and metal contaminants. Removal of additional...
06/18/1991
4917788Manufacture of lube base stocks
This invention provides a method for extending the catalytic dewaxing cycle time of a refined waxy lube stock. The method, in its broadest aspect, requires the additional refining step of thermally treating the refined waxy stock or precursor thereof for ...
04/17/1990
4894141Combination process for upgrading residual oils
A process for upgrading topped crude oils and residual portions comprising material boiling above 552° C. (1025° F.) by the combination of partial demetallizing and decarbonizing of the residual oil before effecting zeolite catalytic cracking thereof is...
01/16/1990
4888103Process of stripping in a catalytic cracking operation employing a catalyst mixture which includes a shape selective medium pore silicate zeolite component
An improved process for stripping, or desorbing, entrained hydrocarbon material and, where present, sulfur-containing material, from a catalyst mixture recovered from a catalytic cracking reaction zone is described which comprises: (a) providing a quantit...
12/19/1989
4861458Process for catalytic cracking of a hydrocarbon charge subjected to a pretreatment with solid particles of low activity
A process and an apparatus for catalytic cracking in a reaction zone operated with a fluid or a moving bed is disclosed, wherein the charge is subjected to at least one pretreatment. According to the invention, at least a portion of said charge, as vapor 40, ...
08/29/1989
4849093Catalytic aromatic saturation of hydrocarbons
In the catalytic processing of aromatic hydrocarbon compounds, a hydrocarbon oil is successively contacted at aromatic saturation conditions with a catalyst in a first reaction zone and contacted at a lower temperature with a second portion of the catalys...
07/18/1989
4826586Single 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
4802971Single riser fluidized catalytic cracking process utilizing hydrogen and carbon-hydrogen contributing fragments
A catalytic cracking process is disclosed which comprises: (a) thermally and/or catalytically cracking a hydrogen-rich hydrocarbon feed in the lower region of a riser reactor in the presence of a catalyst composition comprising a first catalyst component, and,...
02/07/1989
4770764Process for converting heavy hydrocarbon into more valuable product
A process for converting a heavy hydrocarbon into a more valuable product which comprises: adding to the heavy hydrocarbon at least two kinds of substances comprising an oil-soluble or water-soluble transition metal compound and an ultra-fine powder which...
09/13/1988
4753907Fluid particle material regeneration method and apparatus
Solids e.g. catalysts are separated from suspensions in gases e.g. products from catalytic cracking of crude oil fractions a discharging of suspensions against a surface positioned above the outlet of a riser conduit through which the suspensions are flow...
06/28/1988
4585544Hydrocarbon pretreatment process for catalytic cracking
A process for pretreating residual oil by thermal regenerative vaporizing and pretreatment at short residence times and catalytically cracking the pretreated effluent from the thermal regenerative pretreatment process....
04/29/1986
4579646Bottoms visbreaking hydroconversion process
This invention relates to a process for hydroconverting a hydrocarbon chargestock having the steps of: heating the chargestock to produce a minor amount of coke; contacting the coke within the chargestock with a minor effective amount of an oil-soluble me...
04/01/1986
4569753Oil upgrading by thermal and catalytic cracking
A combination process is described for upgrading residual oils and high boiling portions thereof comprising metal contaminants and high boiling Conradson carbon forming compounds comprising a thermal visbreaking operation with fluidizable inert solids fol...
02/11/1986
4560467Visbreaking of oils
A hydrocarbon containing feed stream, e.g., a heavy oil or residuum, is contacted under suitable reaction conditions with a carbon monoxide containing gas, so as to produce a hydrocarbon stream having a reduced level of metal impurities, especially nickel...
12/24/1985
4525268Combination process for upgrading residual oils
A combination operation for upgrading reduced crudes is described which particularly restricts the contact time between hydrocarbons, solid sorbent material and cracking catalyst particles whereby quenching of visbroken product vapors is eliminated, coke ...
06/25/1985
4462895Combination visbreaking and hydrorefining with recycle of hydrorefined bottoms
A heavy hydrocarbon oil comprising constituents boiling above 1050° F. is upgraded by a combination visbreaking or hydrovisbreaking and hydrorefining process in which at least a portion of the hydrorefined bottoms fraction is recycled to the visbreaking ...
07/31/1984
4427539Demetallizing and decarbonizing heavy residual oil feeds
The method and means for effecting selective visbreaking of residual oil feeds comprising metallo-organic compounds with a fluid solid sorbent particle material in the presence of process sour water and wet gas recycle material is described to provide a g...
01/24/1984
4325817Control of emissions in flue gas
A system is described for control of sulfur oxide in emissions to the atmosphere from the combined flue gases of selective vaporization and FCC cracking of the improved charge stock resulting from selective vaporization. The invention provides for reducti...
04/20/1982
4325809Hydrocarbon processing
Metals deposited on an inert contact material during high temperature decarbonizing and demetallizing of heavy petroleum stocks are inactivated by mixing the contact material with a silica donor and reacting the mixture at high temperature in the presence...
04/20/1982
4311579Preparation of FCC charge by selective vaporization
Gasoline and a heavier fraction from selective vaporization of crude or residual petroleum stocks are separately supplied to a riser reactor of the FCC type. The crude or resid is contacted at low cracking severity with hot inert solids in a riser. The va...
01/19/1982
4201659Process for the preparation of gas oil
A process is disclosed for the conversion of asphaltines-containing mineral hydrocarbon oil to distillate gas oil by a processing sequence comprising thermal cracking, flashing, atmospheric fractionation, vacuum fractionation, thermal cracking, catalytic ...
05/06/1980
4157292Hydrocracking process to maximize middle distillate
Disclosed is a hydrocracking catalyst comprising an alumina-zeolite support, a rare earth exchange metal component, at least one metal component selected from Group VIB or Group VIII and from about 0.9 to about 5 wt. % of at least one component selected f...
06/05/1979
4147617Processing hydrocarbon feed of high carbon residue and high metals content
The fluid catalytic cracking of a residual oil fraction comprising metal contaminants and/or asphaltene type coke formers is processed by injecting the oil into the upper portion of a riser cracking operation under conditions to effect partial conversion ...
04/03/1979
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