| Patent application number | Description | Published |
|---|
| 20080237129 | Regeneration of Sulfuric Acid - This invention relates to a process for recycling acid used to remove nitrogen contaminants from hydrocarbons using polymeric membranes to separate spent acid from the acid extraction of hydrocarbons into acid for recycle and acid for regeneration. | 10-02-2008 |
| 20080282892 | Low mesopore adsorbent contactors for use in swing adsorption processes - The present invention relates to engineered structured adsorbent contactors for use in pressure swing adsorption and thermal swing adsorption processes. Preferably, the contactors contain engineered and substantially parallel flow channels wherein 20 volume percent or less of the open pore volume of the contactor, excluding the flow channels, is in the mesopore and macropore range. | 11-20-2008 |
| 20090007782 | Hydrogen Management in Petrochemical Process Units - The management of hydrogen in hydrogen-containing streams associated with petrochemical process units wherein the hydrogen-containing stream is subjected rapid cycle pressure swing adsorption to increase the concentration of hydrogen therein. | 01-08-2009 |
| 20090120839 | Hydrogen Management for Hydroprocessing Units - Improved hydroprocessing processes for upgrading refinery streams via the use of rapid cycle pressure swing absorption having a cycle time of less than 30 s for increasing the concentration of hydrogen in the vapor phase product recycled to the hydroprocessing zone. | 05-14-2009 |
| 20100108571 | HYDROTREATING PROCESS WITH IMPROVED HYDROGEN MANAGEMENT - This invention relates to an improved hydrotreating process for removing sulfur from naphtha and distillate feedstreams. This improved process utilizes a hydrotreating zone, an acid gas removal zone, and a pressure swing adsorption zone having a total cycle time of less than about 30 seconds for increasing the concentration of hydrogen utilized in the process. | 05-06-2010 |
| 20100307336 | Porous crystalline materials, their synthesis and use - A porous crystalline material has a tetrahedral framework comprising a general structure, M | 12-09-2010 |
| 20110100873 | Hydrocracking of Heavy Feedstocks with Improved Hydrogen Management - An improved process for hydrocracking heavy petroleum feedstocks wherein hydrogen-containing streams associated with a hydrocracker are subjected to rapid cycle pressure swing adsorption having a cycle time of less than 30 S. | 05-05-2011 |
