Hong Chan
Hong Chan Ahn, Daejeon KR
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20140161716 | METHOD FOR PREPARING POROUS ALUMINA - The present invention relates to a method for preparing a porous alumina which may be suitably used as a catalyst carrier, an adsorbent, and various surface coating agents and has a boehmite or pseudoboehmite structure having a fine and uniform particle size distribution and a large pore volume. | 06-12-2014 |
Hong Chan Kim, Seoul KR
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20090012339 | Catalytic Cracking Process Using Fast Fluidization for the Production of Light Olefins from Hydrocarbon Feedstock - Disclosed is a catalytic cracking process for the production of light olefins from a hydrocarbon feedstock using fast fluidization, which is a preferred process for more efficiently increasing the production of light olefin hydrocarbons. According to this invention, a fast fluidization regime is applied to a fluidized bed catalytic cracking process of producing light olefins using zeolite, such that a volume fraction and distribution of the catalyst sufficient to induce the catalytic cracking reaction can be provided, thus effectively enhancing the production of light olefin hydrocarbons, in particular, ethylene and propylene, at high selectivity. | 01-08-2009 |
Hong Chan Kim, Jeju-Do KR
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20100137664 | PROCESS FOR 1,3-BUTADIENE SEPARATION FROM A CRUDE C4 STREAM WITH ACETYLENE CONVERTER - Disclosed is a method of recovering 1,3-butadiene from a C4 stream containing butane, isobutane, 2-butene, 1-butene, isobutene, butadiene and acetylene. The process of recovering highly pure 1,3-butadiene includes acetylene conversion for selectively converting acetylene through liquid-phase hydrogenation, so that the acetylene content is decreased to 70 wt ppm or less, and 1,3-butadiene extraction using an extractive distillation column, a pre-separator, a solvent stripping column, a solvent recovery column, and a purification column. Through the acetylene conversion, the concentration of vinylacetylene is decreased to 70 wt ppm or less, after which 1,3-butadiene is recovered using only one extractive distillation column, thereby considerably decreasing the degree of utility and the loss of streams in the course of extraction. The number of units necessary for the process is decreased, thus remarkably reducing the time during which impurities can accumulate in a processing unit. | 06-03-2010 |
20140275671 | METHOD OF PRODUCING AROMATIC HYDROCARBONS AND OLEFIN FROM HYDROCARBONACEOUS OILS COMPRISING LARGE AMOUNTS OF POLYCYCLIC AROMATIC COMPOUNDS - This invention relates to a method of producing aromatic hydrocarbons and olefin from hydrocarbonaceous oils including large amounts of polycyclic aromatic compounds having two or more rings via partial hydrogenation in the presence of a hydrogenation catalyst and catalytic cracking in the presence of a catalytic cracking catalyst. | 09-18-2014 |
Hong Chan Kim, Jeju Special Self-Governing Province KR
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20130178673 | METHOD OF PRODUCING VALUABLE AROMATICS AND OLEFINS FROM HYDROCARBONACEOUS OILS DERIVED FROM COAL OR WOOD - This invention relates to a method of producing aromatics and olefins from oils derived from coal or wood, including partially saturating and cracking the oils derived from coal or wood in a hydrogenation & reaction area, separating them depending on the number of carbons, recirculating heavy oils having 11 or more carbons to the hydrogenation & reaction area, feeding oils suitable for producing BTX to an aromatic separation process and a transalkylation process to recover aromatics, and feeding hydrocarbonaceous components having 5 or less carbons to a light separation process, thus obtaining olefins. | 07-11-2013 |
20130267744 | THE METHOD FOR PRODUCING VALUABLE AROMATICS AND LIGHT PARAFFINS FROM HYDROCARBONACEOUS OILS DERIVED FROM OIL, COAL OR WOOD - This invention relates to a method of producing aromatics and light paraffins from hydrocarbonaceous oils derived from oil, coal or wood, including partially saturating and hydrocracking the oils derived from oil in a hydrogenation and reaction area, separating them depending on the number of carbons, recirculating heavy oils having 11 or more carbons to the hydrogenation and reaction area, feeding oils suitable for producing BTX to an aromatic separation process and a transalkylation process to recover aromatics, and feeding hydrocarbonaceous components having 5 or fewer carbons to a light separation process, thus obtaining light paraffins. | 10-10-2013 |
Hong Chan Kim, Jeju-Si KR
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20130210611 | HYDROCRACKING CATALYST FOR PREPARING VALUABLE LIGHT AROMATIC HYDROCARBONS FROM POLYCYCLIC AROMATIC HYDROCARBONS - This invention relates to a hydrocracking catalyst for preparing valuable light aromatic hydrocarbons from polycyclic aromatic hydrocarbons derived from oil, which includes (i) beta-zeolite, (ii) pseudo-boehmite, and (iii) one or more metals selected from among metals of Groups VIII and VIB, and which further includes a cocatalyst component, thereby producing a maximum amount of BTX (Benzene, Toluene, Xylene) from LCO (Light Cycle Oil). | 08-15-2013 |
20130253242 | METHOD FOR PRODUCING HIGH-ADDED-VALUE AROMATIC PRODUCTS AND OLEFINIC PRODUCTS FROM AN AROMATIC-COMPOUND-CONTAINING OIL FRACTION - The present invention relates to a method for manufacturing aromatic products (benzene/toluene/xylene) and olefinic products from an aromatic-compound-containing oil fraction, whereby it is possible to substitute naphtha as a feedstock for aromatic production and so make stable supply and demand, and it is possible to substantially increase the yield of high-added-value olefinic and high-added-value aromatic components, by providing a method for manufacturing olefinic and aromatic products from light cycle oil comprising a hydrogen-processing reaction step, a catalytic cracking step, an separation step and a transalkylation step, and optionally also comprising a recirculation step. | 09-26-2013 |
Hong Chan Kim, Daejeon KR
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20140213431 | CATALYST FOR CATALYTIC CRACKING OF HYDROCARBON, WHICH IS USED IN PRODUCTION OF LIGHT OLEFIN AND PRODUCTION METHOD THEROF - Disclosed are a molecular sieve catalyst and a preparation method thereof to produce light olefins from cracking naphtha catalytically in severe environments of high temperature and high moisture. In detail, the catalyst is prepared by spray-drying and calcining the mixed slurry, in which 0.01˜5.0 wt % of MnO | 07-31-2014 |
Hong Chan Park, Gyeonggi-Do KR
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20150295613 | METHOD AND ELECTRONIC DEVICE FOR CONTROLLING RADIATION POWER - A radiation power controlling method includes: detecting a user input for setting a radiation power; determining a radiation environment of an antenna on the basis of at least the detected user input; and setting the radiation power of the antenna according to the determined radiation environment. | 10-15-2015 |
20150331600 | OPERATING METHOD USING AN INPUT CONTROL OBJECT AND ELECTRONIC DEVICE SUPPORTING THE SAME - Methods and apparatuses are provided for operating an input control object. At least one virtual input control object is output to a display in response to a first event. The at least one virtual input control object is moved on the display in a designated direction or at a designated speed according to a second event. A function related to the at least one virtual input control object is performed according to a third event. | 11-19-2015 |
Hong-Chan Chang, Taipei City TW
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20130127482 | BURN-IN TEST APPARATUS WITH FUNCTION OF ENERGY RECYCLING - A new electrical recycling apparatus for AC/DC power converter is provided to recycle the electricity in direct current to the input ends of the power converter to be tested to save a stage of power converter and avoid the complicated standard and requirement that feed the electricity to the mains supply. | 05-23-2013 |
Hong-Chan Cho, Yongin-Si KR
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20150344624 | CROSS-LINKING POLYMER, POLYMER RESIN COMPOSITION, AND POLYMER FILM - This disclosure relates to a cross-linking polymer including polyamide-based segments having a specific structure and polyether-based segments having a specific structure, wherein the polyamide-based segments are bound to the polyether-based segments via a residue of an aromatic compound including at least one amine group and at least one carboxylic group, a polymer resin composition including the cross-linking polymer and a polyamide-based resin having relative viscosity of 2.5 to 4.0, and a polymer film including a base film layer including a melt-extrusion of the polymer resin composition. | 12-03-2015 |
Hong-Chan Lee, Seoul KR
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20090004624 | Piezo Insert and Piezo Packer for Operating an Implant Surgical Operation Using Piezoelectric Device - The invention concerns a piezo insert and a piezo packer for implant surgical operation with a piezoelectric device. The piezo insert according to the invention consists of a piezo insert body one end of which is inserted in and fixed to a hand piece of the piezoelectric main device; an insert pole extending from the other end of the piezo insert body; and an insert tip formed at the end of the insert pole. The piezo packer consists of a piezo packer body one end of which is inserted in and fixed to a hand piece of a piezoelectric main device; a packer pole extending from the other end of the piezo packer body and a packer tip formed at the end of the packer pole. With the piezo insert and the piezo packer according to the invention, forming and expanding a hole in a vertical direction in a residual ridge at a portion for implant placement is facilitated when applying bone grafting in a maxillary sinus, and damages can be avoided in a maxillary sinus membrane, in order to effectively insert graft materials through the formed hole in the residual ridge for bone grafting. | 01-01-2009 |
20110143308 | PIEZO INSERT FOR IMPLANT SURGICAL OPERATION - This disclosure provides a piezo insert for implant surgical operation comprising an insert pole having a water supply passage formed therein for supplying water to lift up a maxillary sinus membrane; and an insert tip comprising a plurality of water squirt holes provided along a circumferential direction of the insert pole at one end thereof, and a plurality of connecting passages for connecting the plurality of water squirt holes and the water supply passage. | 06-16-2011 |