Patent application number | Description | Published |
20120073951 | METHODS AND EXTRACTION UNITS EMPLOYING VAPOR DRAW COMPOSITIONAL ANALYSIS - Embodiments of extraction unit and an analysis method are provided. In one embodiment, the analysis method includes the steps of providing a feed stream and a species-selective solvent to the distillation column, drawing a vapor sample from the distillation column, condensing the vapor sample, and analyzing at least a portion of the condensed vapor sample. | 03-29-2012 |
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 |
20130153502 | SYSTEM AND PROCESS FOR RECOVERING PRODUCTS USING SIMULATED-MOVING-BED ADSORPTION - In a process for separating components in a feed stream by simulated countercurrent adsorptive separation, the process according to various aspects includes withdrawing an extract stream through one transfer line that contains residual fluid away from the adsorptive separation chamber. The process also includes directing an initial portion of the extract stream, including at least a portion of the residual fluid withdrawn through the one transfer line toward a first destination. The process further includes directing a subsequent portion of the extract stream withdrawn through the one transfer line toward a second destination. | 06-20-2013 |
20130153504 | SYSTEM AND PROCESS FOR RECOVERING PRODUCTS USING SIMULATED-MOVING-BED ADSORPTION - A process according to various approach includes flushing an intermediate transfer line between the first intermediate transfer line and the extract stream transfer line away from the adsorptive separation chamber to remove residual fluid from intermediate transfer line. The process may include directing the residual fluid flushed from the intermediate transfer line to a recycle stream to introduce the residual fluid into the adsorptive separation chamber. | 06-20-2013 |
20130233693 | Apparatus for Recovering Products Using Adsorption Separation and Fractionation - An apparatus according to various approaches includes separating a component from a feed stream using adsorption separation. The process further includes directing one of the extract stream and the raffinate stream to a high pressure distillation column. In addition, the process includes pumping the one of the extract stream and the raffinate stream to increase the pressure in the stream to flow the one of the extract stream and the raffinate stream into an inlet of the distillation column. | 09-12-2013 |
20130233698 | Method for Recovering Products Using Adsorption Separation and Fractionation - A process according to various approaches includes separating a component from a feed stream using adsorption separation. The process further includes directing one of the extract stream and the raffinate stream to a high pressure distillation column. In addition, the process includes pumping the one of the extract stream and the raffinate stream to increase the pressure in the stream to flow the one of the extract stream and the raffinate stream into an inlet of the distillation column. | 09-12-2013 |
20140061021 | METHODS AND EXTRACTION UNITS EMPLOYING VAPOR DRAW COMPOSITIONAL ANALYSIS - Embodiments of extraction unit and an analysis method are provided. In one embodiment, the analysis method includes the steps of providing a feed stream and a species-selective solvent to the distillation column, drawing a vapor sample from the distillation column, condensing the vapor sample, and analyzing at least a portion of the condensed vapor sample. | 03-06-2014 |
20140171718 | METHODS AND APPARATUSES FOR PROVIDING PROCESS CONTROL IN DUAL COLUMN PROCESSES - Methods and apparatuses for providing process control in dual column processes are provided. In an embodiment, a method for processing a raffinate stream includes forming the raffinate stream in an adsorbent zone. The method monitors the pressure in the adsorbent zone. The raffinate stream is split into a first portion and a second portion. A first flow rate of the first portion is adjusted in response to the pressure in the adsorbent zone, and a second flow rate of the second portion is adjusted in response to the first flow rate. The first portion is fractionated in a first column and the second portion is fractionated in a second column. | 06-19-2014 |
20140371510 | 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. | 12-18-2014 |