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Class 585/818 - By membrane, selective septum, or coalescer


Subclass of Class 585 - Chemistry of hydrocarbon compounds
Definition: Subject matter wherein a liquid hydrocarbon is recovered
No. of patents: 153
Last issue date: 03/01/2011


1        
NumberTitleIssue Date
7897828Process for separating a heavy oil feedstream into improved products
This invention relates to a process for separating a heavy hydrocarbon stream to produce at least one permeate product stream and at least one retentate product stream. The process utilizes an ultrafiltration process to designed to maximize the quality of the permea...
03/01/2011
7875758Systems and methods for the separation of propylene and propane
Embodiments of the present invention generally disclose membrane-based systems and methods for the separation of propylene and propane that overcome certain issues associated with prior art devices and take advantage of a temperature drop across the associated separ...
01/25/2011
7812207Membrane separation processes and systems for enhanced permeant recovery
Membrane separation processes and systems are disclosed that pass a portion of the feed (102) to the permeate side of the membrane (104) to reduce membrane surface area and thus provide economically attractive processes and systems for treating large v...
10/12/2010
7777088Carbon dioxide fractionalization process
A process comprising receiving a hydrocarbon feed stream comprising carbon dioxide, separating the hydrocarbon feed stream into a light hydrocarbon stream and a heavy hydrocarbon stream, separating the light hydrocarbon stream into a carbon dioxide-rich stream and a...
08/17/2010
7714181Process to separate colour bodies and/or asphalthenic contaminants from a hydrocarbon mixture
Process for separating colour bodies and/or asphalthenic contaminants from a hydrocarbon mixture using a membrane having a feed side and a permeate side, by contacting the hydrocarbon mixture with the feed side of the membrane, wherein between the feed and permeate ...
05/11/2010
7619129Process for the separation of olefins and paraffins
A process for the separation of olefinic hydrocarbons from a liquid feedstock composition comprising at least one olefinic hydrocarbon and at least one paraffinic hydrocarbon, said process comprising contacting the liquid feedstock with a supported ionic liquid memb...
11/17/2009
7423192Process and system for blending components obtained from a stream
A method and system for blending components obtained from a feed stock. The method includes flowing a first stream through a membrane member, with the membrane member having a first wafer assembly comprising a first thin film polymer membrane, a first permeate zone,...
09/09/2008
7411105Process and installation for the oligomerization of olefins that use a membrane separation
This invention relates to a process for the oligomerization of olefins that have 2 to 6 carbon atoms comprising at least: a) One reaction stage in which a first effluent that comprises oligomers, paraffins and olefins that have not...
08/12/2008
7411108Process for the removal of conjugated olefins from a monoolefin stream
A method for removing conjugated olefins from a composition comprising contacting the composition with a Diels-Alder dienophile to convert conjugated olefins to a Diels-Alder adduct and arresting the Diels-Alder adduct. A method comprising confining a Diels-Alder di...
08/12/2008
7399897Method of separating olefins from mixtures with paraffins
A process for the separation or concentration of olefinic hydrocarbons from mixtures of olefinic and paraffinic hydrocarbons uses a polyimide membrane, The process is well suited to separating propylene from propylene/propane mixtures. The novel method the membrane ...
07/15/2008
7381858Xylene process using perm-selective separations
Processes are disclosed for production of purified products from a fluid mixtures of C8 aromatics by means of integration of perm-selective separations with purified product recovery operations. The perm-selective separations of the invention comprise of ...
06/03/2008
7361800Process for the separation of olefins from paraffins using membranes
Chitosan membranes chelated with silver or cuprous material may be used to separate olefins from a mixture of olefins and paraffins. The feed stream is humidified, demisted, treated to remove sulfur compounds and passed to a cell having a chitosan membrane containin...
04/22/2008
7358414Para-xylene process using perm-selective separations
Processes and apparatus are disclosed for recovery of purified products from a fluid mixture by means of integrated perm-selective separations with purified product recovery operations. More particularly, integrated processes of the invention comprise separations by...
04/15/2008
7351873Continuous process to separate colour bodies and/or asphalthenic contaminants from a hydrocarbon mixture
A continuous process to separate color bodies and/or asphalthenic contaminants from a hydrocarbon mixture by passing part of the hydrocarbon mixture through a membrane over which membrane a pressure difference is maintained thereby obtaining a hydrocarbon permeate h...
04/01/2008
7329791Hydrogen transport membranes for dehydrogenation reactions
A method of converting C2 and/or higher alkanes to olefins by contacting a feedstock containing C2 and/or higher alkanes with a first surface of a metal composite membrane of a sintered homogenous mixture of an Al oxide or stabilized or partial...
02/12/2008
7318898Polymeric membrane wafer assembly and method
A method for separating aromatic hydrocarbons from a feed stream. The method includes flowing the feed stream through a first channel within a first wafer assembly that may contain an underflow distribution weir. Next, the feed stream is exposed to a first thin film...
01/15/2008
7314565Method and apparatus for separating aromatic hydrocarbons in an isothermal system
An isothermal method is provided for separating aromatic hydrocarbons from a feed stream. The method includes flowing the feed stream through a first channel within a first wafer assembly that contains a rib member. Next, the feed stream is exposed to a first thin f...
01/01/2008
7309091Roof cover plate for the cabin of a car
The invention provides a cab roof of a vehicle with a movable panel. The cab is provided with a front windscreen, a rear deck or rear walls, and door frames at both sides. The door frames are connected with the front windscreen at the front side, with the rear decks...
12/18/2007
7303681Dynamic membrane wafer assembly and method
A method for separating aromatic hydrocarbons from a feed stream. The method includes flowing the feed stream through a first channel within a first wafer assembly that may contain an underflow distribution weir. Next, the feed stream is exposed to a first thin film...
12/04/2007
7282148Porous silicon composite structure as large filtration array
A novel asymmetric filter membrane, and process for making is disclosed in several exemplary versions. The membrane structure is physically robust and suitable for use in a wide variety of applications. The support membrane is may be comprised of material such as a ...
10/16/2007
7276105Separation of water from Fischer-Tropsch product
A method for separating water from a Fischer-Tropsch reactor product stream in a cost effective and energy efficient manner which comprises feeding a Fischer-Tropsch product stream to a separation membrane, preferably a ceramic membrane, and recovering water vapor f...
10/02/2007
7267761Method of reducing sulfur in hydrocarbon feedstock using a membrane separation zone
A membrane is used in combination with fractionation and hydrodesulfurization to reduce the sulfur content of hydrocarbon feeds, preferably sulfur-containing naphtha feeds. A membrane separation zone is employed to treat a fraction of effluent from a fractionation z...
09/11/2007
7255792Method for modifying an organic composition
There is provided a process for modifying a first organic composition comprising (i) at least one first solvent, (ii) at least one solute, and (iii) optionally, at least one second solvent to produce a modified organic composition in which the concentration of the a...
08/14/2007
7250545Method of separating olefins from mixtures with paraffins
A process for the separation or concentration of olefinic hydrocarbons from mixtures of olefinic and paraffinic hydrocarbons uses a polyimide membrane. The process is well suited to separating propylene from propylene/propane mixtures. The novel method The membrane ...
07/31/2007
7211706Process for recovering hydrogen in a gaseous hydrocarbon effluent using a membrane reactor
In order to recover hydrogen from a hydrogen-rich gaseous effluent, a procedure is used that comprises: in a stage (a), bringing a hydrocarbon-rich gaseous effluent into contact with the upstream face of a hydrogen-selective membra...
05/01/2007
7211551Universal cleaner that cleans tough oil, grease and rubber grime and that is compatible with many surfaces including plastics
Versatile cleaning composition that has tremendous cleaning power, yet is compatible with many surfaces. For example, the cleaning composition easily cleans oil, grease, tar, and rubber from soiled surfaces, but does not damage metals, vehicle paints, concrete, plas...
05/01/2007
7152430Method of separating COfrom hydrocarbon gas
A method of separating CO2 from a hydrocarbon gas inlet stream that is within predetermined pressure and temperature ranges including the steps of subjecting the inlet stream to fractional distillation providing a bottom product stream and a distillation ...
12/26/2006
7070694Purification of fluid compounds utilizing a distillation - membrane separation process
Apparatus and processes are disclosed for economical separation of fluid mixtures. Broadly, apparatus of the invention is an integrated fractional distillation and perm-selective membrane separation apparatus. More particularly, the integrated apparatus comprises a ...
07/04/2006
7052597Tuning fuel composition for driving cycle conditions in spark ignition engines
Tuning fuel composition delivered to a spark ignition, internal combustion engine as a function of driving cycle conditions results in improvements in one or more of fuel efficiency and combustion emissions. ...
05/30/2006
7048846Membrane separation for sulfur reduction
A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux an...
05/23/2006
7041212Membrane separation for sulfur reduction
A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux an...
05/09/2006
7018527Membrane separation for sulfur reduction
A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux an...
03/28/2006
7018539Treatment of shipboard-generated oily wastewaters
A process and apparatus for treating oily wastewater, such as bilge water or ballast water, generated on a ship. The process uses a combination of a centrifugal separation step and a membrane separation step, such as an ultrafiltration step. The membrane separation ...
03/28/2006
7001446Dense, layered membranes for hydrogen separation
This invention provides hydrogen-permeable membranes for separation of hydrogen from hydrogen-containing gases. The membranes are multi-layer having a central hydrogen-permeable layer with one or more catalyst layers, barrier layers, and/or protective layers. The in...
02/21/2006
6986802Selective separation of fluid compounds utilizing a membrane separation process
Apparatus and processes are disclosed for economical separation of fluid mixtures utilizing perm-selective membranes. Broadly, apparatus of the invention comprises a plurality of membrane modules comprising a solid perm-selective membrane and equipment for controlli...
01/17/2006
6986358Method and composition to decrease iron sulfide deposits in pipe lines
The levels of iron sulfide present in a conduit, such as a pipeline, are reduced by contacting the conduit, on an inner surface, with a composition obtained from an aqueous solution containing at least one compound of Formula (I) ...
01/17/2006
6972093Onboard fuel separation apparatus for an automobile
An onboard fuel separation apparatus separates a material fuel (gasoline) into a high-octane fuel having a higher octane value than the material fuel and a low-octane fuel having a lower octane value than the material fuel using a separation membrane which selective...
12/06/2005
6899743Separation of organic mixtures using gas separation or pervaporation and dephlegmation
A process for treating mixtures of organic components, including azeotropic mixtures. The process includes a gas- or liquid-phase membrane separation step in conjunction with a dephlegmation step to treat at least a portion of the permeate vapor from the pervaporati...
05/31/2005
6896796Membrane separation for sulfur reduction
A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux an...
05/24/2005
6852902Method of removing entrained sulfuric acid from alkylate
An improvement in the alkylation of olefins with isoalkanes in the presence of sulfuric acid wherein the sulfuric acid is removed from the product by a mechanical coalescer means prior to fractionation. No water wash or caustic treatment is required. Any sulfonates ...
02/08/2005
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