Patent application number | Description | Published |
20080217232 | PROCESS AND DEVICE FOR SIMULATED MOVING BED SEPARATION WITH A REDUCED NUMBER OF LARGE DIAMETER VALVES AND A REDUCED LINE VOLUME - The invention concerns a simulated moving bed adsorption separation device comprising a limited number of large diameter valves. According to the invention, the device comprises a column with a plurality of sectors Sk with 2 superimposed plates Pi with a single distribution network, each sector Sk comprising an external principal bypass line Lk connected to each plate Pi of Sk via a large diameter plate valve Vi and an external secondary bypass line Mk comprising a small diameter valve VMk connected to the adjacent sector Sk−1. Each line Lk comprises a flow rate limitation means and is connected to each fluid network via a single large diameter valve. Further, the connectors of lines Lk onto the column are offset by at most 20° inside Sk to limit the volume of lines Lk, and are offset by a mean angle in the range 70° to 110° between two neighbouring sectors Sk and Sk+1 so as not to weaken the column mechanically. The plates preferably comprise panels DMEi,j with parallel segments the direction of which varies from plate to plate or per group of 2 plates. | 09-11-2008 |
20080262282 | Method for Producing Paraxylene Comprising an Adsortion Step and Two Isomerization Steps - A process for producing para-xylene from a hydrocarbon feed is described in which an adsorption column operating as a simulated moving bed with at least five zones delivers an extract, a 2-raffinate and an intermediate raffinate. | 10-23-2008 |
20080269535 | PROCESS FOR PRODUCING HIGH PURITY META-XYLENE, COMPRISING SIMULATED MOVING BED ADSORPTION AND CRYSTALLIZATION - The invention concerns a process for producing high purity meta-xylene, comprising a step for separation by simulated moving bed adsorption starting from an aromatic C8 feed delivering a fraction which is rich in meta-xylene and a fraction which is depleted in meta-xylene, and a step for crystallization of the meta-xylene rich fraction. The purity of the meta-xylene produced is at least 99.5%. | 10-30-2008 |
20100048973 | 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 of compounds produced with a raffinate, a zone 3 for adsorption of compounds produced by extraction, and a zone 4 that is located between the draw-off of the raffinate and the supply of the desorbent, | 02-25-2010 |
20100258505 | PROCESS AND APPARATUS FOR SIMULATED MOVING BED SEPARATION COMPRISING BYPASS LINES IN EVERY OTHER BED AND WITH A MODULATED BYPASS FLUID FLOW RATE - A process for separating a feed F by simulated moving bed adsorption in a SMB device is described, the device comprising external bypass lines L | 10-14-2010 |
20110056880 | SYSTEM FOR STIFFENING THE PLATES OF A LARGE-DIAMETER MULTI-STAGE COLUMN - Device for stiffening the plates of a multi-stage column with a diameter of more than 2 meters, whereby each plate supports a particle bed and the flow of at least one fluid passes through it from top to bottom, whereby said device consists of a number of beams that are located under the plate in question, each beam having a lower surface that is shaped like a triangle. | 03-10-2011 |
20110118525 | IMPROVED SIMULATED MOVING BED SEPARATION DEVICE - A device (SMB) for separation by simulated moving bed adsorption comprises a plurality of elementary adsorption zones Z | 05-19-2011 |
20110166406 | Improved Device for Simulated Moving Bed Separation - A device (SMB) for separation by simulated moving bed adsorption comprises a plurality of elementary zones Z | 07-07-2011 |
20110201865 | 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 of the compounds produced in the raffinate, a zone 3 for adsorption of the compounds produced in the extract, a zone 4 located between the raffinate withdrawal and the desorbant supply, the device comprising external by-pass lines L | 08-18-2011 |
20110303602 | DEVICE FOR DISTRIBUTING FLUIDS IN A SIMULATED MOVING BED COLUMN WITH A LIMITED DEGREE OF IMMERSION WITHIN THE GRANULAR BED - The present invention describes a device for the distribution of fluids in a multi-stage column operating in simulated moving bed (SMB) mode comprising, in the direction of flow of the principal fluid, a distribution system ( | 12-15-2011 |
20110315634 | PROCESS AND APPARATUS FOR SIMULATED MOVING BED SEPARATION COMPRISING BYPASS LINES IN EVERY OTHER BED AND WITH CONTROLLED FLUSHING FLOW RATES DURING INJECTIONS AND WITHDRAWALS - A process for separating a feed F by simulated moving bed adsorption in a SMB device comprises external bypass lines L | 12-29-2011 |
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 |
20130053610 | HIGHLY FLEXIBLE PROCESS AND APPARATUS FOR THE SIMULATED COUNTER-CURRENT PRODUCTION OF PARA-XYLENE - A process for the production of para-xylene by simulated counter-current adsorption with high flexibility with respect to a reference run (100%) uses 2 adsorbers each with 12 beds, said adsorbers being able to be connected in accordance with 3 different modes; the flexibility obtained is 50% to 150%. | 02-28-2013 |
20140368810 | ANALYSIS DEVICE AND ASSOCIATED METHOD FOR OPERATING SIMULATED MOVING BED XYLENES SEPARATION UNITS A RAMAN SPECTROMETER - The present invention describes an analysis device and a method associated with this device, said device comprising an analysis cell ( | 12-18-2014 |