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Class 208/53 - First stage is coking


Subclass of Class 208 - Mineral oils: processes and products
Definition: Processes wherein the coke producing conversion occurs prior
No. of patents: 30
Last issue date: 07/29/2008


NumberTitleIssue Date
7404889Hydrocarbon thermal cracking using atmospheric distillation
A method for thermally cracking a hydrocarbonaceous feed wherein the feed is first processed in an atmospheric thermal distillation step to form a light gasoline and atmospheric residuum mixture. The light gasoline/residuum combination is gasified at least in part i...
07/29/2008
7303664Delayed coking process for producing free-flowing coke using a metals-containing additive
A delayed coking process for making substantially free-flowing coke, preferably shot coke. A coker feedstock, such as a vacuum residuum, is heated in a heating zone to coking temperatures then conducted to a coking zone wherein volatiles are collected overhead and c...
12/04/2007
6855244Process for reducing coke agglomeration in coking processes
In an embodiment, the invention relates to a method for reducing coke agglomeration in petroleum streams derived from coking processes. In a preferred embodiment, the invention relates to a method for mitigating filter fouling from a coker gas oil by using a pusher ...
02/15/2005
6830677Process for reducing coke agglomeration in coking processes
In an embodiment, the invention relates to a method for reducing coke agglomeration in petroleum streams derived from coking processes. In a preferred embodiment, the invention relates to a method for mitigating filter fouling from a coker gas oil wherein an oxygen ...
12/14/2004
6746596Process for reducing sulphur emissions from a fluidized bed coke burner
The process has to do with a circuit involving a fluidized bed coker reactor working in tandem with a fluidized bed coke burner. The burner is operated at a reduced temperature in the range 550° C.-630° C. Simultaneously, the coke circulation rate is increased to ...
06/08/2004
5952539Dual process for obtaining olefins
A process for producing normally gaseous olefins from two different process units sharing common downstream quench and fractionation facilities, wherein one of the process units is a short contact time mechanically fluidized vaporization unit for processi...
09/14/1999
5780696Process for recycling plastic waste
The invention relates to a process for recycling waste which consists essentially of one or more plastics comprising polyvinyl chloride (PVC), in which: the waste is mixed with a heavy oil, in a reactor under an inert atmosphere, at an internal temperatur...
07/14/1998
5658455Fluidized bed coking process
An improved fluidized bed coking process wherein a residuum feedstock is introduced into a first stage comprised of a short vapor contact time reactor containing a horizontal moving bed of fluidized hot particles. Carbonaceous material is deposited onto t...
08/19/1997
5597474Production of hydrogen from a fluid coking process using steam reforming
The present invention relates to an integrated fluid coking/hydrogen production process. The fluid coking unit is comprised of a fluid coker reactor, a heater, and a gasifier. Solids from the fluidized beds are recycled between the coking zone and the hea...
01/28/1997
5520795Method for reducing the air reactivity of calcined petroleum coke
The air reactivity of calcined petroleum coke is reduced by maintaining the amount of sodium in at least a portion of the water streams contacting the petroleum coke at a value below about 100 parts per million....
05/28/1996
5437782Integrated fluid coking/paraffin dehydrogenation process
The present invention relates to an integrated fluid coking/paraffin dehydrogenation process. The fluid coking unit is comprised of a fluid coker reactor, a heater, and a gasifier. Solids from the fluidized beds are recycled between the coking zone and th...
08/01/1995
5435905Integrated fluid coking paraffin dehydrogenation process
An integrated fluid coking/paraffin dehydrogenation process. The fluid coking unit is comprised of a fluid coker reactor, a heater, and a gasifier. Solids from the fluidized beds are recycled between the coking zone and the heater and between the heater a...
07/25/1995
5430217Integrated fluid coking paraffin dehydrogenation process
An integrated fluid coking/paraffin dehydrogenation process. The fluid coking unit is comprised of a fluid coker reactor, a heater, and a gasifier. Solids from the fluidized beds are recycled between the coking zone and the heater and between the heater a...
07/04/1995
5430216Integrated fluid coking paraffin dehydrogenation process
An integrated fluid coking/paraffin dehydrogenation process. The fluid coking unit is comprised of a fluid coker reactor, a heater, and a gasifier. Solids from the fluidized beds are recycled between the coking zone and the heater and between the heater a...
07/04/1995
4954240Combination coking and hydroconversion process
A hydrocarbonaceous feed, such as petroleum vacuum distillation bottoms, is upgraded by a combination coking and catalytic slurry hydroconversion process wherein a bottoms fraction from coking is passed to a slurry hydroconversion zone, and the bottoms fr...
09/04/1990
4853106Delayed coking process
Delayed coking process in which improved liquid yield is achieved by varying the rate at which the heavy feedstock is fed to the coke drum. Tandem operation of two active coking drums is disclosed which permits feedrate variation without change of load on...
08/01/1989
4801402Partial oxidation process
Synthesis gas is produced by the partial oxidation of a feedstock comprising petroleum coke containing metal sulfide compounds and metal oxy-sulfide compounds and having an ash that contains nickel, vanadium and silicon. In the process, a petroleum coke a...
01/31/1989
4750985Combination coking and hydroconversion process
A carbonaceous feed, such as a heavy hydrocarbonaceous oil or coal and mixtures thereof, is upgraded by a combination coking and catalytic slurry hydroconversion process which may be integrated with a deasphalting process....
06/14/1988
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
4569751Combination coking and hydroconversion process
A carbonaceous feed, such as a heavy hydrocarbonaceous oil or coal and mixtures thereof, is upgraded by a combination coking and catalytic slurry hydroconversion process....
02/11/1986
4569752Combination coking and hydroconversion process
A carbonaceous feed, such as a heavy hydrocarbonaceous oil or coal, and mixtures thereof, is upgraded by a combination coking and catalytic slurry hydroconversion process in which a catalyst precursor is added to the feed of the hydroconversion zone as a ...
02/11/1986
4376015Process for removing arsenic from green coke derived from shale oil
Arsenic is removed from green shale oil coke of high arsenic content by calcining the coke at 1500° F. to 3000° F. for 0.1 hr to 4 hr. The arsenic content is reduced from above about 150 to 300 ppm to below about 100 ppm, thereby making the coke suitabl...
03/08/1983
4351702Processing of heavy high-sulfur feedstocks
A heavy high-sulfur hydrocarbonaceous feedstock is partially delayed coked and partially formcoked. The coke products are screened, with larger particles being calcined at desulfurizing temperatures and smaller particles being recycled to the formcoker. O...
09/28/1982
4269696Fluid coking and gasification process with the addition of cracking catalysts
An integrated fluid coking and gasification process is provided in which a solid cracking catalyst is added to the coker chargestock and in which a partially gasified coke matrix comprising the cracking catalyst is recycled to the coker vapor phase produc...
05/26/1981
4188280Method for removing arsenic from shale oil
A combination process for reducing the soluble arsenic content of shale oil comprising thermally dearsenating the shale oil to make an aged shale oil, coking at least a portion of the aged shale oil, and catalytically hydroprocessing at least a portion of...
02/12/1980
4176047Removal of organic compounds from coker gasoline
A gasoline boiling range hydrocarbon stream obtained by fractionation of overhead vapors from a delayed coker is treated for removal of organic silicon compounds prior to being processed in a desulfurizer and catalytic reformer. The stream is treated by a...
11/27/1979
4009094Stabilizing pyrolysis naphtha
Pyrolysis naphtha is contacted with a residuum hydrocarbon charge stock under process conditions suitable for delayed coking of said residuum hydrocarbon charge. Unstable olefinic and diolefinic components of said pyrolysis naphtha are reduced in the prod...
02/22/1977
3983030Combination process for residua demetalation, desulfurization and resulting coke gasification
A combination process is provided for residua demetalation and desulfurization and resulting coke gasification which comprises contacting said residua with a porous refractory oxide in the absence of added hydrogen, at a temperature of from greater than 7...
09/28/1976
3959115Production of petroleum cokes
Any kind of virgin, low-sulfur crude oil is directly treated in a two-stage delayed coking process for yielding non-crystalline coke in the first stage and high-crystalline coke in the second stage, which process comprises preheating the crude oil in a tu...
05/25/1976
3941681Process for converting inferior heavy oil into light oil and gasifying the same
A process for converting inferior heavy oil into light oil and gasifying the same characterized in that a hydrocracking zone comprising coke fluidized bed and a gasification zone comprising a molten alkali salt are provided, the raw oil is fed in said hyd...
03/02/1976
 
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