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8142648 |
Configurations and methods of RVP control for C5+ condensates
Controlled RVP C5+ products are produced from feed gas in configurations and methods in which a heavier portion of the feed gas is fractionated into several streams having distinct RVP and in which...
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8088275 |
Reconditioning process for used hydrocarbon based stimulation fluid
A process treats a fluid stream of used fracturing fluid containing contaminants and forms a reconditioned fluid stream. Contaminants are removed by the combination of distillation, electrostatic...
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8083930 |
VPS tar separation
A process is described for producing deasphalted steam cracker tar comprising feeding steam cracker tar to a vacuum pipestill (VPS) including a flash zone separated from a zone comprising trays by...
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7993435 |
Process and apparatus for cracking hydrocarbon feedstock containing resid
A process for cracking hydrocarbon feedstock containing resid comprising: heating the feedstock, mixing the heated feedstock with a fluid and/or a primary dilution steam stream to form a mixture,...
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7982086 |
Deisobutenizer
A process for fractionating isobutene from normal butenes, including: introducing hydrogen and a feed stream comprising isobutene, 1-butene, and 2-butene into a first column including a reaction...
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7976699 |
Distillation apparatus and method of use
A method and apparatus is provided for distilling and processing chemicals. The apparatus is particularly suited for processing and distilling difficult to distill compounds, and is capable of...
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7973209 |
Fractionation recovery processing of light olefins free of carbon dioxide
Processing schemes and arrangements for the catalytic cracking of a heavy hydrocarbon feedstock and obtaining light olefins substantially free of carbon dioxide via amine treatment and employing...
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7820033 |
Method for adjusting yields in a light feed FCC reactor
A process for increasing ethylene yield in a cracked hydrocarbon is provided. A hydrocarbon feed stream comprising at least 90% by weight of one or more C4-C10 hydrocarbons can be heated to provide...
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7807047 |
Reconditioning process for used hydrocarbon based stimulation fluid
A process treats a fluid stream of used fracturing fluid containing contaminants and forms a reconditioned fluid stream. Contaminants are removed by the combination of distillation, electrostatic...
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7691239 |
Distillation systems
A differential vapor pressure (DYP) cell is disposed in a divided wall column that receives a feed comprising a first, second, and third component. A separation section on the feed side of the...
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7582204 |
Method for treating a hydrocarbon feedstock including resin removal
The invention relates to a process, including removal of resins, for the treatment of a hydrocarbon charge, at least 80% of the compounds of which have a boiling point which is above or equal to...
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7575729 |
Fuel reforming apparatus and method of controlling the fuel reforming apparatus
A fuel reforming apparatus includes a reforming catalyst, a filtering member, a raw material supply flow passage and a processed gas flow passage. The filtering member has a plurality of cells. A...
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7527725 |
Upgrading drip oil
A method is disclosed for upgrading drip oil comprising subjecting the drip oil to multiple distillation steps to form a stream rich in aromatics and a separate stream rich in dicyclopentadiene.
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7393992 |
Method for working up crude 1,3-butadiene
Sudstituted the abstract with a new abstract as follows: The invention relates to a continuous process for separation a mixture of hydrocarbons which has beenobtained by extractive distillation of...
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7390397 |
Low sulphur diesel fuel and aviation turbine fuel
A process for the production of a synthetic low sulphur diesel fuel and a low soot emission aviation fuel is disclosed. The process includes fractionation of a Low Temperature Fischer-Tropsch...
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7273542 |
Process and apparatus for recovering olefins
The present invention relates to a process and apparatus for recovering product from reactor effluent of a reactor for a hydrocarbon feedstream. An indigenous C4 stream is used as lean oil in a...
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7241377 |
Salt bath refining
A process for heating thermally unstable or difficult to heat liquid feeds, e.g., used lubricating oil (ULO) to dehydrate and/or recover distillable components therefrom, is disclosed. The liquid...
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7204928 |
Process and apparatus for the fractional distillation of crude oil
A process for the fractional distillation of crude oil, which comprises the steps of: feeding a continuous current of crude oil at 310–400° C. into a turbomixer comprising a tubular cylindrical bo...
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7169267 |
Method and device for carrying out the distillative separation of C5+ cuts
A process is proposed for the separation of C5+ cuts by distillation into a low-boiler (A), a medium-boiler (B) and a high-boiler fraction (C) in one or more dividing-wall columns (TK), in which a...
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7129387 |
Low capital implementation of distributed distillation in ethylene recovery
An apparatus for recovering ethylene from a hydrocarbon feed stream, where the apparatus is a single distillation column pressure shell encasing an upper region and a lower region. The upper region...
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7094937 |
Compositions comprising cyclohexamantane
Disclosed are compositions comprising C26H30 hexamantane, referred to herein as peri-condensed hexamantane, fully condensed hexamantane, and cyclohexamantane. These enriched cyclohexamantane...
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7060865 |
Recovery of C4 olefins from a product stream comprising C4 olefins, dimethyl ether and C5+ hydrocarbons
Disclosed is a process for removing DME from a stream containing C4 olefins. The process includes providing a first stream comprising C4 olefins, C5+ hydrocarbons, DME, and methanol. The first...
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7025875 |
Diesel fuel reforming strategy
A method of using a diesel reforming strategy is disclosed. The method comprises supplying diesel fuel to a fractional distillation device. The diesel fuel is fractionally distilled to produce a...
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6844480 |
Method of separating dimethyl ether from an olefin stream
This invention is directed to a method of removing dimethyl ether from an olefin stream. Dimethyl ether is removed from the olefin stream by first separating the olefin stream into a first stream...
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6830677 |
Process 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...
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6755965 |
Ethane extraction process for a hydrocarbon gas stream
A process for ethane extraction from a gas stream based on turboexpansion and fractionation with no mechanical refrigeration is provided. The feed gas is sweetened and dehydrated by a conventional...
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6737557 |
Hydrocarbon upgrading process
A process for recovering DCPD from a hydrocarbon feedstock comprising introducing the hydrocarbon feedstock to a first column, recovering an overhead stream from the first column comprising C9− h...
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6726835 |
Fractionation for full boiling range gasoline desulfurization
Savings in the processing of a naphtha boiling range feed containing a thiophene are achieved by fractionating the feed stream in a single dividing wall column to yield a C6-minus overhead stream,...
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6723231 |
Propene recovery
Process to separate propene from gaseous fluid catalytic cracking products by performing the following steps: a) separating a feed mixture comprising the gaseous products, propene and other...
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6590132 |
Separation of monomer from oligomer with lower bottoms temperature
The process disclosed separates light olefins from heavy oligomers in a distillation column with an intermediary having a boiling point between the light olefin and the heavy oligomer in the column...
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6552242 |
Fractionation in light paraffin isomerization process
Fractional distillation performed to recover butane used as a desorbent component for adsorptive separation is integrated with the other fractionation of the raffinate stream of a C5-C6 paraffin...
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6483002 |
Integrated fractional distillation for adsorptive separation process
Construction and operational costs of simulated moving bed adsorptive separation process units are reduced by recovering desorbent from both the extract and raffinate streams of the process in a...
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6395951 |
Adsorptive separation product recovery by fractional distillation
Construction and operational costs of recovering the extract or raffinate product of a simulated moving bed adsorptive separation process units are reduced by employing a dividing wall column to...
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6358399 |
Process for separating ethane and ethylene by solvent absorption and hydrogenation of the solvent phase
A process and a device for separating ethane and ethylene from a hydrocarbon steam-cracking effluent is described. Effluent (1) is absorbed in an absorption column (7) by a cooled solvent (9). At...
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6348637 |
Multifunction fractionation column for adsorptive separation processes
Construction and operational costs of simulated moving bed adsorptive separation process units are reduced by recovering desorbent from both the extract and raffinate streams of the process in a...
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6340429 |
Process and device for separating ethane and ethylene from a steam-cracking effluent by solvent absorption and hydrogenation of the solvent phase
A process for separating ethane and ethylene from a hydrocarbon steam-cracking effluent is described. Effluent (1) is absorbed in an absorption column by a cooled solvent (9). At the bottom of the...
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6291734 |
Integrated low pressure depropanizer/debutanizer column
An integrated debutanizer and low pressure depropanizer column and process for separating a feed stream comprising C3 's, C4 's and C5 + is disclosed. A single shell houses a refluxed upper portion...
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6271433 |
Cat cracker gas plant process for increased olefins recovery
The invention relates to a new process for more efficient separation and recovery of light olefins such as ethylene and propylene from a fluid catalytic cracking unit. The new process invention for...
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6238549 |
Process for converting hydrocarbons by treatment in a distillation zone associated with a reaction zone, comprising re-contacting a vapor distillate with the feed, and its use for hydrogenating benzine
The invention concerns a process for converting a hydrocarbon feed in which said feed is treated in a distillation zone producing an overhead vapor distillate and a bottom effluent, associated with...
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6193849 |
Fractionator with liquid-vapor separation means
A fractionator has a fractionation vessel, a reactor effluent vapors inlet, a vapor feed contacting zone, a baffled contacting section above the vapor feed contacting zone, a tops section above the...
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6175049 |
Process for the production of 1, 2-butadiene
The production of 1,2-butadiene in purities of at least 85% becomes possible by means of a process in which a polymerization-inhibitor-containing C4 hydrocarbon fraction is subjected to at least...
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6110325 |
Apparatus and method for processing a feed
An apparatus and method are provided in which a vaporizer vaporizes a liquid feed for introduction to a feed conversion unit such as a steam active reformer. A condenser condenses vaporized feed...
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6039771 |
Formulation and method of preparation of energy fortified diesel fuel
An energy fortified diesel fuel is provided containing a hydrocarbon additive wherein greater than 50% vaporizes at or above about 650° F. and diesel fuel of which about 90% of the diesel fuel ...
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6027634 |
Process for stable aqueous asphaltene suspensions
A petroleum derived oil is subjected to propane deasphalting to yield a solid asphaltene residue. The residue is crushed to 425 micron diameter particle or less at a crushing temperature in the...
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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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5951853 |
Refinery atmospheric pipestill with ammonia stripping
In an atmospheric pipestill stripping process where steam is utilized as the stripping gas to strip bottoms and side stream products, the improvement comprising utilizing ammonia or a ammonia and...
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5876591 |
Process for the production of lube oil
A process for fractionating a heavy hydrocarbon stream to produce a lube oil fraction having a constant, predetermined flash point. A liquid stream is removed from the fractionator, cooled in...
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5847249 |
Apparatus and process for catalytic distillations
A process for selectively treating the components in a multi-component stream in a distillation column reactor. Additional catalytic distillation structures are placed as a secondary bed in the...
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5811621 |
Process for recovering ethylene from an olefin stream produced by a methanol to olefin reaction
A polymerizable grade of ethylene is recovered from an olefin-containing composition, prepared by the conversion of a methoxy compound to olefins, by a process which significantly reduces the...
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5632867 |
Recovering a relatively volatile component of a solution from a less volatile component, e.g. as in solvent recovery
In a solvent recovery plant including a recovery or distillation tower from which solvent product is recovered overhead, an isothermal separator, preferably a cyclone, is used to separate liquid...
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