Leon Yuan
Leon Yuan, Rockville, MD US
Patent application number | Description | Published |
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20090110517 | Catalyst Flow Control Device for Transfer of Solids Between Two Vessels - An apparatus and method for transporting solid particulate matter from a lower pressure vessel to a higher pressure vessel are disclosed. The apparatus includes a flow control vessel disposed between the lower and higher pressure vessels with valves for transferring solids between the vessels. | 04-30-2009 |
20090142148 | Device to Transfer Catalyst from a Low Pressure Vessel to a High Pressure Vessel and purge the Transferred Catalyst - An apparatus for the transfer of solid particulate matter from a low pressure system to a high pressure system is presented. The apparatus simplifies the particle transfer process, and is useful for systems where solid catalyst particles are cycled through a reactor and a regenerator. | 06-04-2009 |
20100014946 | CATALYST FLOW CONTROL DEVICE FOR TRANSFER OF SOLIDS BETWEEN TWO VESSELS - An apparatus and process for transporting solid particulate matter from a lower pressure vessel to a higher pressure vessel are disclosed. The apparatus includes a flow control vessel disposed between the lower and higher pressure vessels with valves for transferring solids between the vessels. | 01-21-2010 |
20110083936 | Process and Facility for Removing One or More Compounds - One exemplary embodiment is a refinery or a petrochemical production facility. The refinery or petrochemical production facility can include: | 04-14-2011 |
20110217130 | Device to Transfer Catalyst from a Low Pressure Vessel to a High Pressure Vessel and Purge the Transferred Catalyst - An apparatus for the transfer of solid particulate matter from a low pressure system to a high pressure system is presented. The apparatus simplifies the particle transfer process, and is useful for systems where solid catalyst particles are cycled through a reactor and a regenerator. | 09-08-2011 |
Leon Yuan, Taipei City TW
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20100329949 | RADIAL FLOW CONTINUOUS REACTION/REGENERATION APPARATUS - This specification discloses a radial flow continuous reaction/regeneration apparatus. Through employing a rotary device to individually and annularly distributing process fluid and regeneration fluid into a stationary segmented reaction/regeneration box and receiving effluents individually and annularly from the same stationary reaction/regeneration box, the mentioned radial flow continuous reaction/regeneration apparatus can be operated continuously and efficiently without the need for shutting down for regeneration. This radial flow continuous reaction/regeneration apparatus is not only used to separate components by adsorption, such as dehumidification, but also is used in chemical processes to carry out catalytic reaction, regenerate catalyst and used as filtration device to trap particles by changing the filler in the stationary reaction/regeneration box. | 12-30-2010 |
Leon Yuan, Taipei TW
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20090110616 | METHOD AND APPARATUS FOR IMPROVING RADIAL FLOW MOVING BED REGENERATION/REACTION SYSTEM PERFORMANCE - An improved radial or cross flow moving bed regenerator or reactor, in which the solid particle residence time in the vessels can be changed in different section of the regenerator or reactor. The improvement results from the placement of one or multiple screen inserts which divides the radial or cross flow bed into separate solid flow channels. The residence time of the solid in each solid flow channels are optimized based on the regeneration or reaction requirement by changing the location, orientation and geometry of the screen inserts. As a result of the optimization of solid residence time in different section in the radial flow bed, the efficiency of a regenerator or a reactor is improved. | 04-30-2009 |
20100226832 | PROCESS FOR REGENERATING CATALYST FOR A HYDROCARBON CONVERSION ZONE - In one exemplary embodiment, a unit for regenerating a hydrocarbon conversion catalyst for a hydrocarbon conversion zone can generally include passing the hydrocarbon conversion catalyst through, sequentially, a catalyst-disengaging zone having a first atmosphere, an adsorption zone having a second atmosphere, and a regeneration zone including a combustion zone; introducing an inert gas between the first atmosphere and the second atmosphere; and passing a flue gas from the combustion zone to the adsorption zone. | 09-09-2010 |
Leon Yuan, Des Plaines, IL US
Patent application number | Description | Published |
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20090320370 | Catalytic Reformer Recycle Gas Compressor Efficiency - Methods for improving the efficiency of a catalytic reforming recycle gas compressor by combining a high molecular weight light hydrocarbon process stream from a unit operation associated with the catalytic reforming process with a lower molecular weight reactor off gas recycle stream to form a combined recycle gas stream. | 12-31-2009 |