Patent application number | Description | Published |
20080296535 | Structured catalyst for POX reforming of gasoline for fuel-cell powered vehicles applications and a method of preparing the same - The present invention relates to a structured catalyst for reforming of gasoline and a method of preparing the same, more particularly to a structured catalyst for reforming of gasoline for fuel-cell powered vehicles prepared by wash-coating the transition metal based reforming catalyst on the surface of the ceramic honeycomb support wash-coated with sub-micron sized alumina or its precursor to sufficiently increase the effective surface area and the performance of the catalyst and a method of preparing the same. | 12-04-2008 |
20090286976 | ONE-POT SYNTHESIS OF FLUORINATED IONIC LIQUIDS - The present invention relates to a method for one-pot synthesis of ionic liquid with fluoroalkyl group, more particularly to a method for one-pot synthesis of ionic liquid with fluoroalkyl group represented by the following Chemical Formula 1 by adding and reacting a nitrogen-containing compound, a Brønsted acid of the formula YH and a fluoroolefin compound of the formula CFR | 11-19-2009 |
20100015040 | METHOD FOR SEPARATION AND RECYCLE OF PURE SULFUR DIOXIDE FROM A GASEOUS MIXTURE IN IS CYCLE WITH IONIC LIQUIDS - The present invention relates to a method for separation and recycling of pure sulfur dioxide from a gaseous mixture in the IS cycle. More specifically, the present invention relates to a method for separation and recycling of pure sulfur dioxide from a gaseous mixture in the IS cycle using an ionic liquid under a specific condition. When compared with the conventional amine-based absorbent, the use of the ionic liquid enables continuous absorption and stripping of SO | 01-21-2010 |
20100030007 | METHOD FOR THE REMOVAL OF ACETYLENES FROM OLEFINS USING IONIC LIQUID-BASED SOLUTION - The present invention relates to a process for removing acetylenes from olefins by using an ionic liquid-based solution, and particularly to a process for removing a small amount of acetylenes contained in olefins by using an ionic liquid-based solution where copper halide (CuX, X=halogen atom) is dissolved. In an ionic liquid-based solution used in the present invention, copper halide (CuX) is stabilized by ionic liquid, thus preventing monovalent copper ion (Cu | 02-04-2010 |
20110092758 | Method of Purifying Olefins Using Pyrrolidinium-Based or Piperidinium-Based Ionic Liquids Comprising Copper (I) Halide - The present invention relates to a method of purifying olefin, the method comprising removing a small amount of acetylenic compounds contained in olefin by using pyrrolidinium-based or piperidinium-based ionic liquid mixtures comprising copper (I) halide. According to the method of the present invention, copper (I) halide is stabilized by pyrrolidinium-based or piperidinium-based ionic liquids, suppressing the oxidation of Cu(I) into Cu(II), whereby the capacity of removing acetylenic compounds can be maintained for a long time and the selective removal rate of acetylenic compounds to olefin can be significantly improved. In addition, since the ionic liquid mixtures comprising copper (I) halide used in the method of the present invention can be applied to both absorption and extraction processes, it can effectively remove acetylenic compounds from olefin in a more simple and economical way compared to the existing adsorption and membrane separation processes. | 04-21-2011 |
20110196139 | PREPARATION METHOD FOR CELLULOSE PHOSPHITE COMPOUNDS - Provided is a method for preparing a cellulose phosphite compound, more particularly a method for preparing a cellulose phosphite compound whereby cellulose is phosphorylated using an ionic liquid comprising an amine-based cation and a phosphite-based anion. | 08-11-2011 |
20110207027 | HYDROGEN SUPPLY TANK, AND HYDROGEN SUPPLY APPARATUS, HYDROGEN SUPPLY METHOD AND HYDROGEN-CONSUMING DEVICE USING THE SAME - Disclosed is a hydrogen supply tank including at least one hydrogen-generating container mounted thereto, wherein the hydrogen-generating container receives a hydrogen-generating material capable of heat emission and dehydrogenation under heating, and has a hydrogen discharge path that allows discharge of the generated hydrogen, on the wall surface thereof; the tank has a plurality of divided sections formed therein; the hydrogen-generating container is mounted to each section; and the hydrogen supply tank stores the hydrogen discharged from the hydrogen-generating container and supplies the hydrogen to external sites. Disclosed also are a hydrogen supply apparatus, a hydrogen supply method and a hydrogen-consuming device using the same. | 08-25-2011 |
20120083642 | IONIC LIQUIDS, THE METHOD FOR PREPARING THE SAME AND METHOD FOR REMOVING ACETYLENES FROM OLEFIN MIXTURES USING THE IONIC LIQUIDS - There are provided an ionic liquid having ether group(s) in which a copper(I) compound is included, a method for preparing the same, and a method for removing traces amounts of acetylene-based hydrocarbon compounds included in olefin by absorption or extraction using the same. When the disclosed solution is used, oxidation of Cu(I) to Cu(II) is prevented since CuX is stabilized by the ionic liquid. Thus, selective removal efficiency of acetylenic compounds is improved greatly while the removal performance is retained for a long period of time. Further, since the solution according to the present disclosure is applicable as an extractant as well as an absorbent, the associated operation is simple and apparatus cost can be decreased. | 04-05-2012 |
20130136996 | ASYMMETRIC HYBRID LITHIUM SECONDARY BATTERY HAVING BUNDLE TYPE SILICON NANO-ROD - Disclosed are a metallic nano-structure material in which an energy storage capacity based on electrochemical reaction with lithium is improved by 10 times or more compared to a conventional graphite material and power characteristics are excellent, an electrode composed of the metallic nano-structure material, and a lithium ion asymmetric secondary battery including the electrode as an anode. When using the electrode for the lithium ion asymmetric secondary battery, energy larger than with the graphite material can be stored with very thin thickness due to the high-capacity feature of the metallic material and the high-power feature can be achieved by the nano structure, such that energy density can be innovatively improved in the same weight condition when compared to a conventional lithium ion capacitor, and the lithium ion asymmetric secondary battery including the electrode can be used for renewable energy storage, ubiquitous power supply, heavy machinery, vehicle power source, etc. | 05-30-2013 |
20140135512 | METHOD FOR PRODUCING GLYCIDOL - Disclosed is a method for producing glycidol by decarboxylation of glycerol carbonate. In the method, an ionic liquid catalyst is added for the reaction. According to the method glycidol can be produced in high yield and selectivity. The method enables the production of glycidol in an easy, simple and environmentally friendly way. | 05-15-2014 |
20140145116 | IRON-MODIFIED NI-BASED PEROVSKITE-TYPE CATALYST, PREPARING METHOD THEREOF, AND PRODUCING METHOD OF SYNTHESIS GAS FROM COMBINED STEAM CO2 REFORMING OF METHANE USING THE SAME - The present invention relates to an Fe-modified perovskite-type catalyst, a method for preparing same and a method for preparing a synthesis gas by a combined reforming reaction using same. More particularly, it relates to a catalyst for a combined natural gas/steam/carbon dioxide reforming reaction having a perovskite structure with La and Sr introduced at the A site and Ni and Fe introduced at the B site with specific molar ratios and a method for producing a synthesis gas for Fischer-Tropsch synthesis or methanol synthesis using the catalyst by the combined reforming reaction. The catalyst of the present invention exhibits higher carbon dioxide conversion rate, significantly reduced catalyst deactivation caused by carbon deposition and improved long-term catalyst stability and activity, as compared to the existing catalyst for reforming reaction prepared by the impregnation method. | 05-29-2014 |
20140296523 | Ionic Liquids, The Method For Preparing The Same And Method For Removing Acetylenes From Olefin Mixtures Using The Ionic Liquids - There are provided an ionic liquid having ether group(s) in which a copper(I) compound is included, a method for preparing the same, and a method for removing traces amounts of acetylene-based hydrocarbon compounds included in olefin by absorption or extraction using the same. When the disclosed solution is used, oxidation of Cu(I) to Cu(II) is prevented since CuX is stabilized by the ionic liquid. Thus, selective removal efficiency of acetylenic compounds is improved greatly while the removal performance is retained for a long period of time. Further, since the solution according to the present disclosure is applicable as an extractant as well as an absorbent, the associated operation is simple and apparatus cost can be decreased. | 10-02-2014 |
20140349836 | PROCESS FOR PREPARING NICKEL BASED CATALYSTS FOR SCR OF NATURAL GAS - The present invention relates to a method for preparing a nickel-based catalyst for steam carbon dioxide reforming (SCR) of natural gas using steam and carbon dioxide, more particularly to a method for preparing a nickel-based catalyst represented by Ni/η-Al | 11-27-2014 |
20150045589 | CARBON-BASED PALLADIUM CATALYST OBTAINED BY USING IONIC LIQUID, METHOD FOR PREPARING THE SAME AND HYDROGENATION OF HYDROFLUOROCARBON USING THE SAME - Provided is a palladium on carbon (Pd/C) catalyst obtained by using an ionic liquid, a method for preparing the same, and a method for hydrogenation of hydrofluorocarbon using the same. More particularly, palladium particles are supported on carbon particles by using an ionic liquid, and the resultant Pd/C catalyst is used for hydrogenation of hydrofluorocarbon. The catalyst includes palladium particles having a smaller particle size and a more uniform shape as compared to the existing Pd/C catalysts, and thus shows high catalytic activity. | 02-12-2015 |
20150080617 | METHOD FOR PREPARING METAL FLUORIDE CATALYSTS AND DEHYDROFLUORINATION METHOD USING THE SAME - Disclosed is a method for preparing a metal fluoride catalyst as a dehydrofluorination catalyst having high activity under a mild condition using a trifluoroacetic acid solution with no use of HF gas having fluidity and corrosive property. Disclosed also is a dehydrofluorination method for preparing HFO-1225ye from HFP-236ea by using the catalyst with high efficiency. | 03-19-2015 |
Patent application number | Description | Published |
20120035877 | SEMICONDUCTOR DEVICE HAVING TEST FUNCTION AND TEST METHOD USING THE SAME - A semiconductor device having a test function includes a program counter for storing a breaking address in a storage unit in response to control signals, increasing a count address in response to the control signals, and storing the increased count address in the storage unit; a controller for stopping the increase of the count address when the count address is identical to the breaking address and outputting a pump holding signal; an oscillator for generating a clock signal in response to an enable signal and maintaining a current cycle of the clock signal in response to the pump holding signal; and a pump unit for generating an output voltage in response to the clock signal. | 02-09-2012 |
20130021853 | SEMICONDUCTOR DEVICE AND METHOD OF OPERATING THE SAME - An embodiment of the present invention provides a semiconductor device, including cell string comprising a plurality of memory cells; page buffer comprising latch and switching element, wherein the switching element is coupled between the latch and the bit line which is coupled to the cell string; and a page buffer controller configured to apply a gradually rising turn-on voltage to the switching elements during a bit line setup operation of a program operation. | 01-24-2013 |
20130070535 | NONVOLATILE MEMORY DEVICE AND METHOD OF OPERATING THE SAME - A nonvolatile memory device includes a control logic configured to generate an internal command in response to an internal clock, a finite state machine configured to generate a plurality of current state signals in a program pulse and verify pulse setup operation for a program operation and a program verify operation in response to the internal command, after a program operation using a program pulse and a program verify operation using a program verify pulse are completed, and a glue logic configured to generate check control signals for checking a plurality of page buffers of the page buffer unit in response to the plurality of current state signals in the setup operation. | 03-21-2013 |
20130163331 | SEMICONDUCTOR MEMORY DEVICE AND OPERATING METHOD THEREOF - A semiconductor memory device and a method of operating the same results in reduced programming time. The semiconductor memory device includes advanced circuitry that enables reductions in programming and verification times, leading to a substantial reduction in the total time required to program the device. | 06-27-2013 |
20140056074 | NONVOLATILE MEMORY DEVICE AND METHOD FOR DRIVING THE SAME - A nonvolatile memory includes a memory cell array including a plurality of nonvolatile memory cells connected to bit lines and word lines crossing the bit lines, a voltage driver configured to provide a word line voltage to the word lines and provide a first voltage during a precharging operation and a second voltage during a sensing operation, based on a voltage setting signal, and a page buffer unit configured to adjust a precharging level of a sensing node connected to a bit line of a page included in a selected memory block of the memory cell array using the first voltage and adjust a sensing level of the sensing node using the second voltage. | 02-27-2014 |
20140056081 | SEMICONDUCTOR MEMORY DEVICE AND METHOD OF OPERATING THE SAME - A semiconductor memory device may include a cell string configured to include memory cells, a page buffer coupled to the cell string through a bit line, and configured to include a latch for storing data to be programmed in a memory cell or data read from the memory cell, a precharge voltage generation circuit configured to generate a precharge voltage from an external voltage according to the data stored in the latch, bit line precharge circuits configured to supply the precharge voltage to the bit line in response to precharge control signals, and a control circuit configured to output the precharge control signals so that the number of enabled bit line precharge circuits increases, accordingly, as a supply number of a program voltage augments in a program operation. | 02-27-2014 |
20140177332 | OPERATING CIRCUIT CONTROLLING DEVICE, SEMICONDUCTOR MEMORY DEVICE AND METHOD OF OPERATING THE SAME - A semiconductor memory device is kept in a busy state by controlling a ready/busy pad when a detection signal is output since an external voltage is less than a reference voltage, prevents generation of an operating voltage by a pump circuit by preventing generation of a pump clock, and resets a microcontroller by preventing generation of micro clock. Accordingly, the semiconductor memory device may be prevented from malfunctioning through a series of operations when the external voltage is less than the reference voltage. | 06-26-2014 |
20150019791 | CONTROL CIRCUIT OF SEMICONDUCTOR DEVICE AND SEMICONDUCTOR MEMORY DEVICE - A control circuit includes a ROM suitable for generating ROM data based on a ROM address corresponding to a predetermined operation, a command analyzing unit suitable for outputting the ROM address corresponding to the predetermined operation, generating an address storing signal in response to an operation suspension command for suspending the predetermined operation, and generating an address output signal in response to an operation resumption command for resuming the predetermined operation, an address storing unit suitable for storing a ROM address, which corresponds to the ROM address at a time point where the predetermined operation is suspended, in response to the address storing signal, and an address output unit suitable for outputting the ROM address corresponding to said time point in response to the address output signal, wherein the ROM generates ROM data for resuming the predetermined operation based on the ROM address corresponding to said time point. | 01-15-2015 |