| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 585821000 | With measuring, sensing, testing, or recycle of sorbate to same sorption zone | 9 |
| 20080242912 | 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 acetylene is then provided to a semiconductor processing tool. | 10-02-2008 |
| 20100121126 | Process For Purification of Hydrocarbons - The present invention relates to a process for the removal of sulfur contaminants from a hydrocarbon stream comprising: (a) providing a gaseous hydrocarbon stream having sulfur contaminants, but having less than 10 ppmw of said sulfur contaminants as thiophenes, to a bed of adsorbent material, said material having at least one Group VIII metal compound with at least one Group VI, IA, IIA, IB metal compound on an inorganic metal oxide support material, without substantial added hydrogen, to absorb said contaminants; (b) periodically stopping said providing of said gaseous hydrocarbon feed stream of (a); (c) then, regenerating said adsorbent bed by introducing at least one regenerant, in any order, in the place of said stream; and, (d) continuing to alternate (a) and (b) plus (c) as needed. | 05-13-2010 |
| 20120065451 | PROCESS FOR THE REGENERATION OF A COPPER, ZINC AND ZIRCONIUM OXIDE-COMPRISING ADSORPTION COMPOSITION - The invention relates to a process for the regeneration of a copper-, zinc- and zirconium oxide-comprising adsorption composition after use thereof for the adsorptive removal of carbon monoxide from substance streams comprising carbon monoxide and at least one olefin, in which the adsorption composition is heated to a temperature in the range from 160 to 400° C. and a regeneration gas is passed through the adsorption composition, wherein the regeneration gas comprises 1000 to 3000 ppm of oxygen in an inert carrier gas. | 03-15-2012 |
| 20120116144 | Feedback and Feedforward Closed Loop Purity and Recovery Control - There is provided a closed loop purity and recovery control system and process for operating a xylene purification system such as a Parex unit. | 05-10-2012 |
| 20120302812 | PRODUCT RECOVERY FROM ADSORPTION-SEPARATION PURGE FLUIDS - Purge fluid from a vessel head in an adsorption process is distributed to recovery processes according to the purity of product contained in the fluid. Extract-rich fluid thus is routed directly to recovery of the extract product. Distribution preferably is determined by internal positioning of feed, desorbent and product streams in the adsorption vessel. | 11-29-2012 |
| 20120302813 | PROCESSES AND APPARATUSES FOR PRODUCING A SUBSTANTIALLY LINEAR PARAFFIN PRODUCT - Processes and apparatuses are provided for producing a normal paraffin product or a substantially linear paraffin product from a feed including normal hydrocarbons, non-normal hydrocarbons, and contaminants. The contaminants are extracted from the feed through contact with an ionic liquid stream to form a clean stream of hydrocarbons. The desired hydrocarbons are selectively adsorbed from the clean stream of hydrocarbons with a molecular sieve to remove the desired hydrocarbons from the non-desired hydrocarbons. A desorbent recovers the desired hydrocarbons from the molecular sieve. Then the desired hydrocarbons are separated from the desorbent to yield the normal paraffin product. | 11-29-2012 |
| 20130006031 | PROCESS AND APPARATUS FOR SIMULATED COUNTER-CURRENT CHROMATOGRAPHIC SEPARATION USING TWO ADSORBERS IN PARALLEL FOR OPTIMIZED PARA-XYLENE PRODUCTION - The present invention describes a novel configuration for simulated moving bed separation processes characterized by using two adsorbers each containing 12 beds, these two adsorbers functioning in parallel. This novel configuration can be used to optimize para-xylene production. | 01-03-2013 |
| 20130158332 | Simulated Moving Bed Systems for Separation of Para-xylene and Processes for Determining Pump-Around Profiles of the Simulated Moving Bed Systems - Embodiments of simulated moving bed systems for separating a preferentially adsorbed component from a feed stream and processes for determining a pump-around profile of the simulated moving bed systems are provided. The process comprises the steps of rotating a rotary valve to a first valve position to direct the feed stream to a first adsorbent sub-bed. An intermediate stream between two adsorbent sub-beds in direct fluid communication with each other is irradiated with laser light that is directed from a probe of a Raman system positioned for inline sampling of the intermediate stream. Scattered light from the irradiated intermediate stream is collected with the probe. A spectrum of the scattered light is generated with the Raman system to determine concentrations of the preferentially adsorbed component and one or more other components in the intermediate stream. | 06-20-2013 |
| 20140336436 | Treatment of Aromatic Hydrocarbon Stream - The invention is directed to a process of contacting at least one zeolite, selected from the MWW family of zeolites, with an aromatic hydrocarbon stream in a system comprising at least one reactor containing the at least one zeolite, wherein the conditions in the reactor are adjusted in response to at least one measurement of the system so as to preferentially increase oxygenate removal or to preferentially increase olefin removal. | 11-13-2014 |
