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Class Information
Number: 585/818
Name: Chemistry of hydrocarbon compounds > Purification, separation, or recovery > By membrane, selective septum, or coalescer
Description: Subject matter wherein a liquid hydrocarbon is recovered from a liquid










Sub-classes under this class:

Class Number Class Name Patents
585/819 Aromatic permeate 72


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8704030 Process of separating gases using polyimide membranes Apr. 22, 2014
8692048 Method for revamping an HF or sulphuric acid alkylation unit Apr. 8, 2014
8647398 Production of renewable biofuels Feb. 11, 2014
8609914 Process for converting natural gas to aromatics with electrochemical removal of hydrogen Dec. 17, 2013
8598402 Butane absorption system for vent control and ethylene purification Dec. 3, 2013
8580111 Device for separating fuel components Nov. 12, 2013
8575414 Membrane system for natural gas upgrading Nov. 5, 2013
8575411 Method for reacting natural gas to aromatics while electrochemically removing hydrogen and electrochemically reacting the hydrogen water Nov. 5, 2013
8568510 Gas-separation processes using membranes with permeate sweep to recover reaction feedstocks Oct. 29, 2013
RE44462 Carbon dioxide fractionalization process Aug. 27, 2013
8505332 Natural gas liquid recovery process Aug. 13, 2013
8487152 Process for converting natural gas to aromatics with electrochemical removal of hydrogen to generate electrical power and obtain hydrogen Jul. 16, 2013
8471087 Process that utilizes combined distillation and membrane separation in the separation of an acidic contaminant from a light hydrocarbon gas stream Jun. 25, 2013
8460434 Methane recovery from a landfill gas Jun. 11, 2013
8344199 Removal of ultra-fine particles from a Fischer Tropsch stream Jan. 1, 2013
8329974 Filtration tray for fixed bed reactor with a co-current down-flow of gas and liquid Dec. 11, 2012
8258363 Separation of aromatics with pervaporation membrane Sep. 4, 2012
8221634 Process and apparatus for separating and recovering waste alkali from cyclohexane oxidation solution Jul. 17, 2012
8203028 Processes for olefin/paraffin separation utilizing porous, hydrophobic poly(ether ether ketone) membranes Jun. 19, 2012
8177965 Enhancement of saturates content in heavy hydrocarbons utilizing ultrafiltration May. 15, 2012
8114192 Gas separation processes using membrane with permeate sweep to recover reaction feedstocks Feb. 14, 2012
8084557 Gas-phase process for the polymerization of alpha-olefins Dec. 27, 2011
8071044 Processes for the isomerization of paraffins of 5 and 6 carbon atoms with methylcyclopentane recovery Dec. 6, 2011
8067656 Liquid-liquid separation process via coalescers Nov. 29, 2011
7985331 Method for eliminating the carbonyl sulfide contained in a liquid hydrocarbon stream Jul. 26, 2011
7981376 Processes for the isomerization of normal butane to isobutane Jul. 19, 2011
7943037 Hydroconversion process for petroleum resids using selective membrane separation followed by hydroconversion over carbon supported metal catalyst May. 17, 2011
7931798 Hydroconversion process for petroleum resids by hydroconversion over carbon supported metal catalyst followed by selective membrane separation Apr. 26, 2011
7897828 Process for separating a heavy oil feedstream into improved products Mar. 1, 2011
7875758 Systems and methods for the separation of propylene and propane Jan. 25, 2011
7846322 Integrated refinery with enhanced olefin and reformate production Dec. 7, 2010
7812207 Membrane separation processes and systems for enhanced permeant recovery Oct. 12, 2010
7803275 Membrane separation process using mixed vapor-liquid feed Sep. 28, 2010
7799964 Membrane process for LPG recovery Sep. 21, 2010
7777088 Carbon dioxide fractionalization process Aug. 17, 2010
7714181 Process to separate colour bodies and/or asphalthenic contaminants from a hydrocarbon mixture May. 11, 2010
7642393 Process for removing at least benzene from hydrocarbon streams Jan. 5, 2010
7638676 Processes for the isomerization of feedstocks comprising paraffins of 5 to 7 carbon atoms Dec. 29, 2009
7638674 Processes for the isomerization of paraffins of 5 and 6 carbon atoms with methylcyclopentane recovery Dec. 29, 2009
7638675 Processes for the isomerization of normal butane to isobutane Dec. 29, 2009
7619129 Process for the separation of olefins and paraffins Nov. 17, 2009
7612246 Process for isomerization of a C7 fraction with co-production of an aromatic molecule-rich fraction Nov. 3, 2009
7452405 Multi stage sulfur removal system and process for an auxiliary fuel system Nov. 18, 2008
7452404 Multi-stage sulfur removal system and process for an auxiliary fuel system Nov. 18, 2008
7423192 Process and system for blending components obtained from a stream Sep. 9, 2008
7411108 Process for the removal of conjugated olefins from a monoolefin stream Aug. 12, 2008
7411105 Process and installation for the oligomerization of olefins that use a membrane separation Aug. 12, 2008
7399897 Method of separating olefins from mixtures with paraffins Jul. 15, 2008
7381858 Xylene process using perm-selective separations Jun. 3, 2008
7361800 Process for the separation of olefins from paraffins using membranes Apr. 22, 2008

1 2 3 4










 
 
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