Matches 1 - 35 out of 35


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US20120157744 RECYCLING FLUSH STREAMS IN ADSORPTION SEPARATION PROCESS FOR ENERGY SAVINGS  
A process to reduce flush circulation rates in an adsorption separation system is presented. The flush stream is used to improve the capacity of the simulated moving bed system by flushing the...
US20090227825 PROCESS FOR REMOVING CONTAMINANTS FROM HYDROCARBON OBTAINED FROM RECYCLED MATERIALS  
A process for removing a contaminant from a hydrocarbon containing a first quantity of the at least one contaminant, including contacting the hydrocarbon with a clay packed in a column, at least a...
US20090273768 Liquid for immersion exposure, method of purifying the same,and immersion exposure method  
A saturated hydrocarbon compound is brought into contact at least with a first adsorbent and a second adsorbent to obtain a liquid for immersion exposure containing the saturated hydrocarbon...
US20130158333 Process and Apparatus for para-Xylene Production using Multiple Adsorptive Separation Units with Shared Raffinate Processing  
A process for separating para-xylene from a plurality of aromatic compounds, wherein the process introduces a first mixed xylene stream comprising a plurality of xylene isomers into a first...
US20130158334 Process and Apparatus for para-Xylene Production using Multiple Adsorptive Separation Units  
A process for separating para-xylene from a plurality of aromatic compounds, wherein the process introduces a mixed xylene feed stream comprising a plurality of xylene isomers into a first...
US20110282125 HEAVY OLEFIN PRODUCTION PROCESS  
A process is presented for the selective separation and recovery of large normal paraffins from a heavy kerosene boiling point fraction. The process includes passing the heavy kerosene fraction...
US20110201865 PROCESS AND DEVICE FOR SIMULATED MOVING BED SEPARATION WITH A MODULATED BY-PASS FLUID FLOW  
A process for separating a feed F by simulated moving bed adsorption in a SMB device comprises at least one zone 1 for desorption of the compounds produced in the extract, a zone 2 for desorption...
US20130116495 ENERGY EFFICIENCY IN ADSORPTIVE SEPARATION  
The present process comprises a means for energy savings in one or more process pumps by driving the one or more pumps with a variable-speed driving means. The invention is particularly useful in...
US20090018380 PROCESS AND DEVICE FOR IMPROVED SEPARATION OF PARAXYLENE IN A SIMULATED MOVING BED  
Process for separating paraxylene with a purity that is at least equal to 99.5% by weight from an aromatic feedstock F in a single adsorption stage in a simulated moving bed (SMB), comprising...
US20110152589 Adsorbing Polynuclear Aromatics From a Reforming Process Using Adsorbents Containing Iron  
An exemplary embodiment can be a process for removing one or more polynuclear aromatics from at least one reformate stream from a reforming zone. The PNAs may be removed using an adsorption zone....
US20080242912 Methods and Apparatus for Providing a High Purity Acetylene Product  
Methods and apparatus for the purification and distribution of acetylene. Acetylene is removed from an acetylene storage device, and provided to a purifier where solvent is removed. The purified...
US20100125162 Heavy Paraffin Adsorption Separation Process  
A process is presented for the selective separation and recovery of large normal paraffins from a heavy kerosene boiling point fraction. The process includes passing the heavy kerosene fraction...
US20090036726 PROCESS AND DEVICE FOR IMPROVED SEPARATION OF METAXYLENE IN A SIMULATED MOVING BED  
Process for separation of metaxylene, with at least 99% by weight of purity of an aromatic feedstock F, in a single adsorption stage in a simulated moving bed in an SMB device that comprises 12,...
US20140148633 SIMULATED COUNTERCURRENT CHROMATOGRAPHIC SEPARATION PROCESS AND DEVICE WITH LOW PRESSURE DROP AND HIGH NUMBER OF ZONES  
A simulated moving bed separation process is characterized in that the feed and desorbant injection streams are each divided into N streams (N being a whole number strictly greater than 1)...
US20100048973 PROCESS AND DEVICE FOR SEPARATION IN A SIMULATED MOVING BED WITH A BYPASS FLUID FLOW RATE THAT IS NOT REGULATED AUTOMATICALLY  
Process for separation of a feedstock F by adsorption in a simulated moving bed in an SMB device that comprises a zone 1 for desorption of compounds produced by extraction, a zone 2 for desorption...
US20130261351 TEMPORARY DESULPHURIZATION REACTOR FOR PRE-TREATING A HYDROCARBON FEED BEFORE STEAM REFORMING WITH A VIEW TO HYDROGEN PRODUCTION  
The present invention describes a process for pre-treating a steam reforming feed containing sulphur-containing compounds, using two desulphurization reactors: a temporary desulphurization reactor...
US20130267742 NITRILE CONTAINING HYDROCARBON FEEDSTOCK, PROCESS FOR MAKING THE SAME AND USE THEREOF  
The invention deals with a method for preparing a nitrogen-depleted hydrocarbon feedstock (315, 412, 514, 614, 714, 718, 814, 822) having (i) an initial boiling point comprised between 0° C. and...
US20150246860 Xylene Separation Process  
A process is described for separating paraxylene from a multicomponent fluid mixture of C8 aromatics, and more particularly to a process for separating paraxylene from such a fluid mixture by...
US20140031601 Reduction In Flushing Volume In An Adsorptive Separation System  
A process for separating a product from a multicomponent feedstream to an adsorption apparatus or system is described. The apparatus or system may comprise a moving-bed or a simulated moving-bed...
US20130324780 Phenol Removal in Paraxylene Recovery Process  
The invention is directed to purification of an aromatic hydrocarbon stream including selective removal of phenol from a process stream comprising aromatic hydrocarbon mixtures, especially...
US20100125163 Separation Process  
The invention relates to an improved absorption-type separation and/or purification processes having dual rotary valves.
US20140296607 PURIFICATION PROCESS  
A process for removing halogen compounds, particularly chlorine compounds, from a process fluid, includes the steps of (i) passing a process fluid containing hydrogen halide over a first sorbent...
US20150005563 Rotary Fluid Processing Systems and Associated Methods  
Rotary fluid processing systems and associated methods are disclosed. A purification system in accordance with the particular embodiment includes a rotatable adsorbent-containing heat/mass...
US20120220050 METHOD OF PURIFYING 8-ISOPROSTANE  
A method of purifying 8-isoprostane is provided that includes a step of contacting a liquid sample containing 8-isoprostane with an ion exchange support having a quaternary ammonium salt...
US20130324774 Methods and Apparatus for Treating a Hydrocarbon Stream  
Disclosed is a method for removing water, nitrogen compounds, and unsaturated aliphatic compounds from a hydrocarbon feed stream by passing the hydrocarbon feed stream through a water removal...
US20130324773 Methods and Apparatus for Treating a Hydrocarbon Stream  
Disclosed is a method for treating two or more aromatic feed streams including combining one aromatic feed stream with another aromatic feed stream. The method further includes passing the...
US20130109901 METHODS AND APPARATUSES FOR TREATING A HYDROCARBON-CONTAINING FEED STREAM  
Embodiments of methods and apparatuses for treating a hydrocarbon-containing feed stream are provided. The method comprises the steps of contacting the hydrocarbon-containing feed stream...
US20100234662 Process for Reducing Carbon Monoxide in Olefin-Containing Hydrocarbon Feedstocks  
A process for removing carbon monoxide from an olefin-containing hydrocarbon feedstock comprising the steps of: a) passing the said hydrocarbon feedstock over a material comprising nickel...
US20170066987 IMPROVED ADSORPTION PROCESS FOR RECOVERING CONDENSABLE COMPONENTS FROM A GAS STREAM  
Disclosed is an improved process for recovering condensable components from a gas stream, in particular, heavier hydrocarbons from a gas stream. The present process uses solid adsorbent media to...
US20160340596 SEQUENTIAL REMOVAL OF NGLS FROM A NATURAL GAS STREAM  
Disclosed is a method of sequentially separating and recovering one or more NGLs (129, 229) from a natural gas feedstream (3). Specifically, a raw natural gas feedstream (3) is passed through two...
US20160244685 METHODS FOR HYDROCARBON DEW POINT REDUCTION USING AN ORGANOSILICA MEDIA  
Methods for treating a gaseous stream are described herein. A method for treating a gaseous stream, includes contacting a gaseous stream comprising a mixture of hydrocarbons with organosilica...
US20160016866 Methane Gas Concentration Method  
Adsorption towers are filled with adsorbents that adsorb methane gas in coal mine gas and perform a PSA cycle. For each of adsorption towers, a plurality of different pressure states of the...
US20160001218 SEPARATION PROCESS OF GASEOUS COMPOUNDS FROM NATURAL GAS WITH LOW EXERGY LOSSES  
The present invention relates to a separation process of natural gas from gaseous compounds present at the wellhead by means of at least two adsorption columns, each containing an adsorbing solid...
US20150065765 PROCESS FOR PURIFYING A HYDROCARBON FEED  
A process for purifying a hydrocarbon feed, using a first adsorption unit with first and second adsorption columns respectively filled with first and second adsorbent solids by simultaneously: a)...
US20120157738 METHODS FOR REMOVING UNSATURATED ALIPHATIC HYDROCARBONS FROM A HYDROCARBON STREAM USING ACTIVATED CARBON  
Disclosed is a method for removing unsaturated aliphatic compounds from a hydrocarbon feed stream by contacting the hydrocarbon feed stream with activated carbon to produce a hydrocarbon effluent...

Matches 1 - 35 out of 35