Patent application number | Description | Published |
20090124840 | Extending the life of an aromatization catalyst - A method of extending the life of an aromatization catalyst comprising identifying a rapid deactivation threshold (RDT) of the catalyst, and oxidizing the catalyst prior to reaching the RDT. A method of aromatizing a hydrocarbon comprising identifying a rapid deactivation threshold (RDT) for an aromatization catalyst, and operating an aromatization reactor comprising the catalyst to extend the Time on Stream of the reactor prior to reaching the RDT. A method of characterizing an aromatization catalyst comprising identifying a rapid deactivation threshold (RDT) of the catalyst. A method of extending the life of an aromatization catalyst comprising predicting a rapid deactivation threshold (RDT) for an aromatization reactor by employing the catalyst in a reactor system under an accelerated fouling condition to identify a test rapid deactivation threshold (t-RDT), predicting the RDT for the aromatization reactor based upon the t-RDT, and oxidizing the catalyst prior to the predicted RDT to extend the Time on Stream of the aromatization catalyst. | 05-14-2009 |
20110046428 | Methods of Isomerizing Xylenes with a Catalyst Reduced in the Presence of Hydrogen and a Base - A xylene isomerization process includes introducing gas comprising hydrogen and a base to a reaction zone in which a catalyst comprising a Group VIII metal and a zeolite support resides. In one embodiment, the base may be formed in situ within the reaction zone from nitrogen and hydrogen that are introduced to the reaction zone. In another embodiment, the base is introduced directly to the reaction zone. The conditions in the reaction zone are effective to reduce the catalyst. A stream comprising C | 02-24-2011 |
20110184217 | Method of Enhancing an Aromatization Catalyst - A hydrocarbon aromatization process comprising adding a nitrogenate, an oxygenate, or both to a hydrocarbon stream to produce an enhanced hydrocarbon stream, and contacting the enhanced hydrocarbon stream with an aromatization catalyst, thereby producing an aromatization reactor effluent comprising aromatic hydrocarbons, wherein the catalyst comprises a non-acidic zeolite support, a group VIII metal, and one or more halides. Also disclosed is a hydrocarbon aromatization process comprising monitoring the presence of an oxygenate, a nitrogenate, or both in an aromatization reactor, monitoring at least one process parameter that indicates the activity of the aromatization catalyst, modifying the amount of the oxygenate, the nitrogenate, or both in the aromatization reactor, thereby affecting the parameter. | 07-28-2011 |
20110190558 | Extending the life of an aromatization catalyst - A method of extending the life of an aromatization catalyst comprising identifying a rapid deactivation threshold (RDT) of the catalyst, and oxidizing the catalyst prior to reaching the RDT. A method of aromatizing a hydrocarbon comprising identifying a rapid deactivation threshold (RDT) for an aromatization catalyst, and operating an aromatization reactor comprising the catalyst to extend the Time on Stream of the reactor prior to reaching the RDT. A method of characterizing an aromatization catalyst comprising identifying a rapid deactivation threshold (RDT) of the catalyst. A method of extending the life of an aromatization catalyst comprising predicting a rapid deactivation threshold (RDT) for an aromatization reactor by employing the catalyst in a reactor system under an accelerated fouling condition to identify a test rapid deactivation threshold (t-RDT), predicting the RDT for the aromatization reactor based upon the t-RDT, and oxidizing the catalyst prior to the predicted RDT to extend the Time on Stream of the aromatization catalyst. | 08-04-2011 |
20110190559 | Method of Enhancing an Aromatization Catalyst - A hydrocarbon aromatization process comprising adding a nitrogenate, an oxygenate, or both to a hydrocarbon stream to produce an enhanced hydrocarbon stream, and contacting the enhanced hydrocarbon stream with an aromatization catalyst, thereby producing an aromatization reactor effluent comprising aromatic hydrocarbons, wherein the catalyst comprises a non-acidic zeolite support, a group VIII metal, and one or more halides. Also disclosed is a hydrocarbon aromatization process comprising monitoring the presence of an oxygenate, a nitrogenate, or both in an aromatization reactor, monitoring at least one process parameter that indicates the activity of the aromatization catalyst, modifying the amount of the oxygenate, the nitrogenate, or both in the aromatization reactor, thereby affecting the parameter. | 08-04-2011 |
20130066125 | Extending the Life of an Aromatization Catalyst - A method of extending the life of an aromatization catalyst comprising identifying a rapid deactivation threshold (RDT) of the catalyst, and oxidizing the catalyst prior to reaching the RDT. A method of aromatizing a hydrocarbon comprising identifying a rapid deactivation threshold (RDT) for an aromatization catalyst, and operating an aromatization reactor comprising the catalyst to extend the Time on Stream of the reactor prior to reaching the RDT. A method of extending the life of an aromatization catalyst comprising predicting a rapid deactivation threshold (RDT) for an aromatization reactor by employing the catalyst in a reactor system under an accelerated fouling condition to identify a test rapid deactivation threshold (t-RDT), predicting the RDT for the aromatization reactor based upon the t-RDT, and oxidizing the catalyst prior to the predicted RDT to extend the Time on Stream of the aromatization catalyst. | 03-14-2013 |
Patent application number | Description | Published |
20090099578 | METHODS AND DEVICES FOR DELIVERING SUTURES IN TISSUE - Methods and devices for driving a suture assembly employing elastically pre-shaped needles for piercing a tissue. The pre-shaped needles are held in a constrained state and can revert to a natural pre-shaped state prior to or during ejection from the device before entry into tissue allowing for the suture to follow a defined path similar to the pre-shaped needle such that removal of the needle allows for subsequent securing of the suture in or around tissue. | 04-16-2009 |
20110295257 | SYSTEMS AND METHODS FOR STERNUM REPAIR - The invention provides systems and methods for sternum repair. A sternum repair device may include a central body, which may include a plurality of bands and buckles, such that a band extends from the central body and is received by a buckle component. The band may wrap around the sternum and the device may be tightened to keep the separate sternum pieces together. | 12-01-2011 |
20120071901 | METHODS AND DEVICES FOR DELIVERING SUTURES IN TISSUE - Methods and devices for driving a suture assembly employing elastically pre-shaped needles for piercing a tissue. The pre-shaped needles are held in a constrained state and can revert to a natural pre-shaped state prior to or during ejection from the device before entry into tissue allowing for the suture to follow a defined path similar to the pre-shaped needle such that removal of the needle allows for subsequent securing of the suture in or around tissue. | 03-22-2012 |
20120323241 | STERNUM BAND TENSIONER DEVICE, SYSTEM AND METHOD - The invention provides systems and methods for sternum repair. A sternum repair device may include a central body, which may include a plurality of bands and buckles, such that a band extends from the central body and is received by a buckle component. The band may wrap around the sternum and the device may be tightened to keep the separate sternum pieces together. Various band tensioning devices, systems and methods are disclosed. | 12-20-2012 |
20140296887 | TISSUE DEVICE - Systems and methods for fastening tissue include a hollow element and an elongate insertion element. The insertion element has a delivery device including a cone, suture, and needle at a delivery end, and an anchor at an opposite end. The hollow element includes an engagement structure in its interior surface that permits movement of the insertion element through the hollow element in a first direction, and prevents movement of the insertion element through the hollow element in a second direction opposite the first direction. The engagement structure may include a braid or mesh that operates on a finger-trap principle. The hollow element may include an elongate element with a cone, suture, and needle at a delivery end, and an anchor at an opposite end. Alternatively, the hollow element may include a button that incorporates the braid or mesh. | 10-02-2014 |
20140316443 | METHOD AND APPARATUS FOR PASSING SUTURE - A device is disclosed that can pierce and hold tissue and then pass suture through tissue. The device can have a shuttle that can removably attach to a suture and jaws that can be rotatably opened and closed with respect to each other. A method for using the device to repeatedly pass the suture through the tissue without removing the suture or device from the target site is also disclosed. | 10-23-2014 |
Patent application number | Description | Published |
20080300062 | Electronic Device for Enhancing an Interactive Experience with a Tangible Medium of Expression - An electronic device for enhancing an interactive experience with a tangible medium of expression is disclosed. The device is operable with a ny of a plurality of preprogrammed, removable memory, modules; at least one memory module having content relating to the tangible medium. The electronic device has a processor coupled to each of a user input device, a user output device, and a memory address space comprising a preprogrammed, non-removable electronic memory. A memory interface is configured to increase the memory address space accessible to the processor when any combination of the memory modules is coupled to the interface. The processor is configured to cause the output device to produce an output signal relating to the tangible medium based on the content of the memory address space when any combination of the plurality of removable memory modules including the at least one memory module is coupled to the interface. | 12-04-2008 |
20080300070 | Toy For Positioning A Play Implement - The present invention discloses a play implement positioning device including an implement support for holding a first play implement in a play position to be struck. The invention also discloses a mechanism for selectively, automatically placing multiple stored play implements onto the implement support after the first implement has been struck and dislodged from the implement support. | 12-04-2008 |
20100059968 | CHILDREN'S RIDE-ON VEHICLES HAVING DETECTION SYSTEMS - A children's ride-on vehicle is disclosed. In some embodiments, the vehicle may include a body having a seat assembly configured to support a child; and a drive assembly adapted to selectively drive rotation of at least one driven wheel in a plurality of drive configurations, and including a motor assembly comprising at least one electric motor, at least one user input device positioned to receive inputs from a child supported by the seat assembly and adapted to selectively actuate the motor assembly, a battery assembly adapted to selectively energize the motor assembly, and a detection system adapted to detect whether an accessory is coupled to the body. The drive assembly being adapted to restrict driving of the at least one driven wheel to less than all drive configurations of the plurality of drive configurations based on the detection system detecting whether the accessory is coupled to the body. | 03-11-2010 |
20110021294 | Toy for Positioning a Play Implement - The present invention discloses a play implement positioning device including an implement support for holding a first play implement in a play position to be struck. The invention also discloses a mechanism for selectively, automatically placing multiple stored play implements onto the implement support after the first implement has been struck and dislodged from the implement support. | 01-27-2011 |