| Patent application number | Description | Published |
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| 20100126948 | FILTERING PROCESS AND SYSTEM TO REMOVE AICI3 PARTICULATES FROM IONIC LIQUID - A process for the filtration of an ionic liquid involves feeding an ionic liquid containing precipitated metal halides to a first filtering zone, which includes at least one first filter, to provide a partially filtered product. The process further includes subsequently feeding the partially filtered product to a second filtering zone, which includes at least one second filter having a smaller pore size than the at least one first filter, to provide a filtered product. A filter system capable of filtering precipitated metal halides from ionic liquid is also disclosed. | 05-27-2010 |
| 20100130799 | Process to Remove Dissolved AlCl3 from Ionic Liquid - Disclosed herein are processes in which precipitation permits removal of metal halides (e.g. AlCl | 05-27-2010 |
| 20100130800 | Liquid-Liquid Separation Process Via Coalescers - A process for separating an ionic liquid from hydrocarbons employs a coalescer material having a stronger affinity for the ionic liquid than the hydrocarbons. The coalescer material can be a high surface area material having a large amount of contact area to which ionic liquid droplets dispersed in the hydrocarbons may adhere. The process includes feeding a mixture comprising ionic liquid droplets dispersed in hydrocarbons to a coalescer comprising the coalescer material. The process further includes a capture step involving adhering at least a portion of the ionic liquid droplets to the coalescer material to provide captured droplets and a coalescing step involving coalescing captured droplets into coalesced droplets. After the capture and coalescence steps, the coalesced droplets are allowed to fall from the coalescer material to separate the ionic liquid from the hydrocarbons and provide a hydrocarbon effluent. | 05-27-2010 |
| 20100278699 | Apparatus for ionic liquid catalyst regeneration - An apparatus for regenerating an ionic liquid catalyst comprising a reactive extraction column, the reactive extraction column comprising:
| 11-04-2010 |
| 20110282114 | METHOD OF FEEDING REACTANTS IN A PROCESS FOR THE PRODUCTION OF ALKYLATE GASOLINE - This application provides a process for the production of alkylate blending components, comprising introducing a hydrocarbon feed stream comprising an olefin to an orifice of a nozzle, at a close distance from the orifice; and wherein the nozzle dispenses a mixture of one or more recirculated streams and the hydrocarbon feed stream through a throat of the nozzle to make alkylate gasoline blending components. This application also provides a process unit for the production of alkylate gasoline, comprising: a) a nozzle having an orifice that dispenses one or more recirculated streams comprising ionic liquid catalyst into a chamber in the nozzle, b) a conduit for introducing a hydrocarbon feed stream comprising an olefin to the orifice at a close distance from the orifice; and c) a throat connecting the chamber in the nozzle to an alkylation zone. | 11-17-2011 |
| Patent application number | Description | Published |
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| 20090170687 | System and apparatus for ionic liquid catalyst regeneration - Disclosed are a system and an apparatus for regenerating an ionic liquid catalyst, which has been deactivated by conjunct polymers during any type of reaction producing conjunct polymers as a by-product, for example, isoparaffin-olefin alkylation. The system and apparatus are designed such that solvent extraction of conjunct polymers, freed from the ionic liquid catalyst through its reaction with aluminum metal, occurs as soon as the conjunct polymers de-bond from the ionic liquid catalyst. | 07-02-2009 |
| 20090170688 | Process for ionic liquid catalyst regeneration - A regeneration process for re-activating an ionic liquid catalyst, which is useful in a variety of reactions, especially alkylation reactions, and which has been deactivated by conjunct polymers. The process includes a reaction step and a solvent extraction step. The process comprises (a) providing the ionic liquid catalyst, wherein at least a portion of the ionic liquid catalyst is bound to conjunct polymers; and (b) reacting the ionic liquid catalyst with aluminum metal to free the conjunct polymers from the ionic liquid catalyst in a stirred reactor or a fixed reactor. The conjunct polymer is then separated from the catalyst phase by solvent extraction in a stirred extraction or packed column. | 07-02-2009 |
| 20090171133 | Ionic liquid catalyst alkylation using a loop reactor - Provided is a process for producing low volatility, high quality gasoline blending components which comprises recirculation of at least a portion of a recovered stream comprising primarily isoparaffins. Recirculation of the stream allows for an enhanced I/O ratio and a more cost effective process. | 07-02-2009 |
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| 20090116848 | OPTICAL COMMUNICATION SYSTEM AND METHOD USING MANCHESTER ENCODED SIGNAL REMODULATION - An optical communication system and method using Manchester encoded signal remodulation are provided. The optical communication system includes a transmitter generating and transmitting a Manchester encoded optical signal including a first data stream, and a receiver receiving an optical signal obtained by dividing power of the Manchester encoded optical signal into two parts and modulating one of the two parts to include a second data stream, and recovering the second data stream. In two-way communication, the optical communication system and method allow one party to generate and transmit a Manchester encoded signal (i.e., a downstream signal) to the other party and allow the other party to generate an upstream signal by modulating the optical power of the downstream signal without using a light source. | 05-07-2009 |
| 20090196614 | ACOUSTO-OPTIC FILTER AND OPTICAL CDMA SYSTEM USING THE SAME - Provided are an acousto-optic filter and an optical code division multiple access (CDMA) system using the acousto-optic filter. The acousto-optic filer includes: an acousto-optic mode converter (AOMC) converting an optical signal of a specific optical frequency corresponding to a frequency of an electric signal of an optical signal of a first mode having a predetermined optical frequency band; and a mode stripper (MS) stripping an optical signal of the optical signal of the first mode that has been converted to a second mode. | 08-06-2009 |
| 20090269051 | METHOD OF CONTROLLING OPTICAL OUTPUT POWER AND PASSIVE OPTICAL NETWORK SYSTEM USING THE SAME - Provided are an optical output power control method that provides optical communication without harming the human body even when a transmission line is cut or no optical network unit (ONU) accesses a communication system, and a passive optical network (PON) system using the method. In the method, an optical signal having a predetermined period is transmitted when an optical communication system is in an abnormal state, wherein the predetermined period includes a laser-on time interval in which the optical signal has a normal power level and a laser-off time interval in which the optical signal is off or has a power level lower than the normal power level, so that the optical communication system performs optical communication without harming the human body even during the abnormal state. | 10-29-2009 |
| 20100003035 | LASER DIODE HAVING AN ABRUPT TURN-ON, OPTICAL TRANSMITTER DEVICE USING THE SAME LASER DIODE AND OPTICAL COMMUNICATION APPARATUS - Provided are a laser diode which has low power consumption and can realize a high on/off extinction ratio by small variation of current and which can modulate optical signals at high speed, an optical transmitter, and an optical communication apparatus including the optical transmitter. The laser diode having an abrupt turn-on characteristic, comprises: an active region in which light is generated by application of current and gain is controlled; and an absorption region absorbing light generated in the laser diode at a current lower than an abrupt threshold current that is the same as or lower than an operation current, the operation current being a current level that allows the laser diode to generate a target optical power, wherein the output optical power rapidly increases at the abrupt threshold current. | 01-07-2010 |
