| Patent application number | Description | Published |
|---|
| 20080221375 | Catalyst Treatment Useful for Aromatics Conversion Process - A process for preparing a transalkylation catalyst, the catalyst itself, and a transalkylation process for using the catalyst are herein disclosed. The catalyst comprises rhenium metal on a solid-acid support such as mordenite, which has been treated with a sulfur-based agent. Such treatment reduces the amount of methane produced by metal hydrogenolysis in a transalkylation process wherein heavy aromatics like A | 09-11-2008 |
| 20080260604 | Integrated process for producing xylenes and high purity benzene - Processes and apparatus are provided that provide high yields of xylenes per unit of aromatic-containing feed while enabling a high purity benzene co-product to be obtained without the need for an extraction or distillation to remove C | 10-23-2008 |
| 20080262278 | Integrated Process for Producing Xylenes and High Purity Benzene - Processes and apparatus are provided that provide high yields of xylenes per unit of aromatic-containing feed while enabling a high purity benzene co-product to be obtained without the need for an extraction or distillation to remove C | 10-23-2008 |
| 20080262280 | Integrated process for producing xylenes and high purity benzene - Processes and apparatus are provided that provide high yields of xylenes per unit of aromatic-containing feed while enabling a high purity benzene co-product to be obtained without the need for an extraction or distillation to remove C | 10-23-2008 |
| 20090032386 | Xylene Production Apparatus With Integrated Feedstock Treatment - An apparatus for producing a xylene isomer, which integrates the removal of olefins into a reaction zone of the apparatus is disclosed. Apparatus of this invention enable the use of aromatic feedstocks containing olefins and reduce or eliminate the need for feed pretreatment by olefin removal assemblies or zones such as hydrotreating, hydrogenation, and clay and/or molecular sieve treating, thereby reducing capital and operating costs. | 02-05-2009 |
| 20090036724 | Xylene Production Processes With Integrated Feedstock Treatment - A process for aromatic transalkylation and olefin reduction of a feed stream is disclosed. Transalkylation conditions provide a product having increased xylene concentration and reduced olefin concentration relative to the feed. The process may be used in a xylene production facility to minimize or avoid the necessity of feedstock pretreatment such as hydrotreating, hydrogenation, or treating with clay and/or molecular sieves. | 02-05-2009 |
| 20100125037 | Layered Sphere Catalyst Formulations for Selective Hydrogenation Performance - A catalyst for selective hydrogenation of hydrocarbons is presented. The catalyst selectively hydrogenates acetylenes and diolefins to increase the monoolefins in a product stream. The catalyst includes a layered structure with an inert inner core and an outer layer bonded to the inner core, where the outer layer is a metal oxide and has at least two metals deposited on the outer layer. | 05-20-2010 |
| 20100125158 | Methods for Selective Hydrogenation Performance Using a Layered Sphere Catalyst With New Formulations - A process for selective hydrogenation of hydrocarbons is presented. The process uses a catalyst to selectively hydrogenate acetylenes and diolefins to increase the monoolefins in a product stream. The catalyst in the process includes a layered structure with an inert inner core and an outer layer bonded to the inner core, where the outer layer is a metal oxide and has at least two metals deposited on the outer layer. | 05-20-2010 |
| 20100152026 | Layered Sphere Catalysts with High Accessibility Indexes - A process and catalyst for use in the selective hydrogenation of acetylene to ethylene is presented. The catalyst comprises a layered structure, wherein the catalyst has an inner core and an outer layer of active material. The catalyst further includes a metal deposited on the outer layer, and the catalyst is formed such that the catalyst has an accessibility index between 3 and 500. | 06-17-2010 |
| 20100152507 | Process for Using Layered Sphere Catalysts with High Accessibility Indexes - A process and catalyst for use in the selective hydrogenation of acetylene to ethylene is presented. The catalyst comprises a layered structure, wherein the catalyst has an inner core and an outer layer of active material. The catalyst further includes a metal deposited on the outer layer, and the catalyst is formed such that the catalyst has an accessibility index between 3 and 500. | 06-17-2010 |
| 20100234656 | Olefinic Feedstock Treatment Processes - Aromatic by-products are sorbed from mono-olefin-containing feedstocks of olefins having from about 6 to 22 carbon atoms per molecule that contain aromatic by-products having from 7 to 22 carbon atoms per molecule. A benzene-containing regenerant displaces and desorbs the aromatic by-products from the sorbent and a regeneration effluent is provided. The regeneration effluent is treated in a regeneration effluent distillation system to provide a benzene-rich stream and an aromatic by-products-containing stream. The latter is subjected to benzene-forming conditions and recycled to the regeneration effluent distillation system where benzene is recovered. | 09-16-2010 |
| 20110046427 | XYLENE PRODUCTION PROCESSES WITH INTEGRATED FEEDSTOCK TREATMENT - A process for aromatic transalkylation and olefin reduction of a feed stream is disclosed. Transalkylation conditions provide a product having increased xylene concentration and reduced olefin concentration relative to the feed. The process may be used in a xylene production facility to minimize or avoid the necessity of feedstock pretreatment such as hydrotreating, hydrogenation, or treating with clay and/or molecular sieves. | 02-24-2011 |
