Patents by Inventor Chang-hoon Kang
Chang-hoon Kang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20240132357Abstract: An embodiment of the present specification provides a method for preparing a catalyst for preparing a carbon nanotube, comprising: (a) dissolving a main catalyst precursor, a support precursor, a cocatalyst precursor and a precipitation inhibitor in a solvent to prepare a precursor solution; and (b) pyrolyzing the precursor solution by spraying the precursor solution into a reactor, wherein a mole fraction of the precipitation inhibitor to the cocatalyst precursor is 0.1 to 1.5.Type: ApplicationFiled: October 19, 2023Publication date: April 25, 2024Applicant: KOREA KUMHO PETROCHEMICAL CO., LTD.Inventors: Myung Hoon JEONG, Hyun Tae KIM, Sang Hyo RYU, Chung Heon JEONG, Wan Sung LEE, Woo Ram JUNG, Chang Gu KANG
-
Patent number: 11931884Abstract: A smart drilling system includes a terminal configured to map a design space to an actual space and having perforation location information in the design space, a drilling machine including a drill for perforation and configured to perform perforation in the actual space under control of the terminal based on the perforation location information, and a total station configured to acquire location information of a reference point in the actual space for mapping the design space to the actual space and location information of the drilling machine in the actual space, and to transmit the location information of the reference point in the actual space and the location information of the drilling machine to the terminal, wherein the terminal recognizes and displays a perforable region or a perforable point at a current position of the drilling machine.Type: GrantFiled: March 25, 2022Date of Patent: March 19, 2024Assignees: GeoSystem Inc., Buildingpointkorea Inc.Inventors: Dong Hun Kang, Jong Hyun Oh, Ji Eun Kim, Chang Wook Joh, Young Hoon Koh
-
Publication number: 20240066960Abstract: An embodiment vehicle door opening/closing system includes an inner panel defining a door open portion of a vehicle, the inner panel including an installation groove having a protruding or recessed shape, a driving device disposed in the installation groove of the inner panel, and a link mechanism installed on a chassis through a rotating shaft, a first end of the link mechanism being connected to the driving device such that power is transferred thereto, and a second end of the link mechanism being connected to a door such that, during driving of the driving device, the link mechanism rotates with reference to the rotating shaft to open/close the door.Type: ApplicationFiled: January 23, 2023Publication date: February 29, 2024Inventors: Chang Hak Kang, Jae Seung Lee, Gook Hyun Jeon, Chan Woong Jeon, Sang Kyoung Han, Hae Hoon Lee
-
Patent number: 10456707Abstract: The present invention relates to a reactor, and according to one aspect of the present invention, there is provided a reactor comprising a housing provided with a reaction space, a tube disposed inside the housing, an impeller provided inside the housing to allow reactants in the reaction space to flow into and out of the tube and a nozzle provided to spray a liquid from the reaction space toward the housing wall surface side.Type: GrantFiled: November 16, 2016Date of Patent: October 29, 2019Assignee: LG CHEM, LTD.Inventors: Dae Hun Kim, Jun Won Choi, Seung Hyun Yoon, Ye Hoon Im, Chang Hoon Kang, Myeong Yeon Keum, Seong Gu Kim
-
Publication number: 20180272249Abstract: The present invention relates to a reactor, and according to one aspect of the present invention, there is provided a reactor comprising a housing provided with a reaction space, a tube disposed inside the housing, an impeller provided inside the housing to allow reactants in the reaction space to flow into and out of the tube and a nozzle provided to spray a liquid from the reaction space toward the housing wall surface side.Type: ApplicationFiled: November 16, 2016Publication date: September 27, 2018Inventors: Dae Hun KIM, Jun Won CHOI, Seung Hyun YOON, Ye Hoon IM, Chang Hoon KANG, Myeong Yeon KEUM, Seong Gu KIM
-
Patent number: 8569200Abstract: A catalyst for hydrocarbon steam cracking for the production of light olefin, a preparation method of the catalyst and a preparation method of olefin by using the same. More precisely, the present invention relates to a composite catalyst prepared by mixing the oxide catalyst powder represented by CrZrjAkOx (0.5?j?120, 0?k?50, A is a transition metal, x is the number satisfying the condition according to valences of Cr, Zr and A, and values of j and k) and carrier powder and sintering thereof, a composite catalyst wherein the oxide catalyst is impregnated on a carrier, and a method of preparing light olefin such as ethylene and propylene by hydrocarbon steam cracking in the presence of the composite catalyst. The composite catalyst of the present invention has excellent thermal/mechanical stability in the cracking process, and has less inactivation rate by coke and significantly increases light olefin yield.Type: GrantFiled: December 1, 2011Date of Patent: October 29, 2013Assignee: LG Chem, Ltd.Inventors: Jun-han Kang, Jong-hun Song, Jun-seon Choi, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh
-
Patent number: 8492305Abstract: The present invention relates to a catalyst for hydrocarbon steam cracking for the production of light olefin, a preparation method of the catalyst and a preparation method of olefin by using the same. More precisely, the present invention relates to a composite catalyst prepared by mixing the oxide catalyst powder represented by CrZrjAkOx (0.5?j?120, 0?k?50, A is a transition metal, x is the number satisfying the condition according to valences of Cr, Zr and A, and values of j and k) and carrier powder and sintering thereof, a composite catalyst wherein the oxide catalyst is impregnated on a carrier, and a method of preparing light olefin such as ethylene and propylene by hydrocarbon steam cracking in the presence of the composite catalyst. The composite catalyst of the present invention has excellent thermal/mechanical stability in the cracking process, and has less inactivation rate by coke and significantly increases light olefin yield.Type: GrantFiled: December 1, 2011Date of Patent: July 23, 2013Assignee: LG Chem, Ltd.Inventors: Jun-han Kang, Jong-hun Song, Jun-seon Choi, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh
-
Patent number: 8242047Abstract: The present invention relates to an oxide catalyst and a phosphoric oxide catalyst for hydrocarbon steam cracking, method for preparing the same and a method for preparing olefin by using the same. More precisely, the present invention relates to an oxide catalyst for hydrocarbon steam cracking represented by formula 1 and a phosphoric oxide catalyst for hydrocarbon steam cracking represented by formula 3 which would be used for the production of olefin such as ethylene and propylene by hydrocarbon steam cracking, and a method for preparing the same. The present invention provides an oxide catalyst and a phosphoric oxide catalyst for hydrocarbon steam cracking that has excellent thermo-stability at high temperature and improved olefin yield. CrZrjAkOx??[Formula 1] CrZrjAkPlOx??[Formula 3] Wherein, j, k, l and x are as indicated in the description.Type: GrantFiled: March 25, 2011Date of Patent: August 14, 2012Assignee: LG Chem, Ltd.Inventors: Jun-seon Choi, Jun-Han Kang, Jong-hun Song, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh
-
Publication number: 20120108417Abstract: The present invention relates to a catalyst for hydrocarbon steam cracking for the production of light olefin, a preparation method of the catalyst and a preparation method of olefin by using the same. More precisely, the present invention relates to a composite catalyst prepared by mixing the oxide catalyst powder represented by CrZrjAkOx (0.5?j?120, 0?k?50, A is a transition metal, x is the number satisfying the condition according to valences of Cr, Zr and A, and values of j and k) and carrier powder and sintering thereof, a composite catalyst wherein the oxide catalyst is impregnated on a carrier, and a method of preparing light olefin such as ethylene and propylene by hydrocarbon steam cracking in the presence of the composite catalyst. The composite catalyst of the present invention has excellent thermal/mechanical stability in the cracking process, and has less inactivation rate by coke and significantly increases light olefin yield.Type: ApplicationFiled: December 1, 2011Publication date: May 3, 2012Applicant: LG CHEM, LTD.Inventors: Jun-han Kang, Jong-hun Song, Jun-seon Choi, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh
-
Publication number: 20120108416Abstract: A catalyst for hydrocarbon steam cracking for the production of light olefin, a preparation method of the catalyst and a preparation method of olefin by using the same. More precisely, the present invention relates to a composite catalyst prepared by mixing the oxide catalyst powder represented by CrZrjAkOx (0.5?j?120, 0?k?50, A is a transition metal, x is the number satisfying the condition according to valences of Cr, Zr and A, and values of j and k) and carrier powder and sintering thereof, a composite catalyst wherein the oxide catalyst is impregnated on a carrier, and a method of preparing light olefin such as ethylene and propylene by hydrocarbon steam cracking in the presence of the composite catalyst. The composite catalyst of the present invention has excellent thermal/mechanical stability in the cracking process, and has less inactivation rate by coke and significantly increases light olefin yield.Type: ApplicationFiled: December 1, 2011Publication date: May 3, 2012Applicant: LG CHEM, LTD.Inventors: Jun-han Kang, Jong-hun Song, Jun-seon Choi, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh
-
Patent number: 8123931Abstract: The present invention relates to a catalyst for hydrocarbon steam cracking for the production of light olefin, a preparation method of the catalyst and a preparation method of olefin by using the same. More precisely, the present invention relates to a composite catalyst prepared by mixing the oxide catalyst powder represented by CrZrjAkOx (0.5?j?120, 0?k?50, A is a transition metal, x is the number satisfying the condition according to valences of Cr, Zr and A, and values of j and k) and carrier powder and sintering thereof, a composite catalyst wherein the oxide catalyst is impregnated on a carrier, and a method of preparing light olefin such as ethylene and propylene by hydrocarbon steam cracking in the presence of the composite catalyst. The composite catalyst of the present invention has excellent thermal/mechanical stability in the cracking process, and has less inactivation rate by coke and significantly increases light olefin yield.Type: GrantFiled: May 23, 2008Date of Patent: February 28, 2012Assignee: LG Chem, Ltd.Inventors: Jun-han Kang, Jong-hun Song, Jun-seon Choi, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh
-
Publication number: 20110172483Abstract: The present invention relates to an oxide catalyst and a phosphoric oxide catalyst for hydrocarbon steam cracking, method for preparing the same and a method for preparing olefin by using the same. More precisely, the present invention relates to an oxide catalyst for hydrocarbon steam cracking represented by formula 1 and a phosphoric oxide catalyst for hydrocarbon steam cracking represented by formula 3 which would be used for the production of olefin such as ethylene and propylene by hydrocarbon steam cracking, and a method for preparing the same. The present invention provides an oxide catalyst and a phosphoric oxide catalyst for hydrocarbon steam cracking that has excellent thermo-stability at high temperature and improved olefin yield. CrZrjAkOx ??[Formula 1] CrZrjAkPlOx ??[Formula 3] Wherein, j, k, l and x are as indicated in the description.Type: ApplicationFiled: March 25, 2011Publication date: July 14, 2011Inventors: Jun-seon CHOI, Jun-Han Kang, Jong-hun Song, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh
-
Patent number: 7935654Abstract: The present invention relates to an oxide catalyst and a phosphoric oxide catalyst for hydrocarbon steam cracking, method for preparing the same and a method for preparing olefin by using the same. More precisely, the present invention relates to an oxide catalyst for hydrocarbon steam cracking represented by formula 1 and a phosphoric oxide catalyst for hydrocarbon steam cracking represented by formula 3 which would be used for the production of olefin such as ethylene and propylene by hydrocarbon steam cracking, and a method for preparing the same. The present invention provides an oxide catalyst and a phosphoric oxide catalyst for hydrocarbon steam cracking that has excellent thermo-stability at high temperature and improved olefin yield. CrZrjAkOx??[Formula 1] CrZrjAkPlOx??[Formula 3] Wherein, j, k, l and x are as indicated in the description.Type: GrantFiled: September 24, 2007Date of Patent: May 3, 2011Assignee: LG Chem, Ltd.Inventors: Jun-seon Choi, Jun-Han Kang, Jong-hun Song, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh
-
Publication number: 20100285199Abstract: The present invention relates to a sugar-free jelly composition using gelatin, more specifically, a sugar-free jelly composition obtained by replacing sugars such as sugar, fructose, and starch syrup used for manufacturing a conventional jelly with sugar alcohols and mixing them in a suitable mixing ratio for the prevention and treatment of obesity, diabetes, and tooth decay as well as maintaining the sweetness and the quality contained in the conventional sugar jellies.Type: ApplicationFiled: December 4, 2008Publication date: November 11, 2010Applicant: LOTTE CONFECTIONERY CO., LTD.Inventors: Seok Yoon, Chang Hoon Kang, Man Chong Lee, Yong Tack Kim
-
Publication number: 20090105066Abstract: The present invention relates to a catalyst for hydrocarbon steam cracking for the production of light olefin, a preparation method of the catalyst and a preparation method of olefin by using the same. More precisely, the present invention relates to a composite catalyst prepared by mixing the oxide catalyst powder represented by CrZrjAkOx (0.5?j?120, 0?k?50, A is a transition metal, x is the number satisfying the condition according to valences of Cr, Zr and A, and values of j and k) and carrier powder and sintering thereof, a composite catalyst wherein the oxide catalyst is impregnated on a carrier, and a method of preparing light olefin such as ethylene and propylene by hydrocarbon steam cracking in the presence of the composite catalyst. The composite catalyst of the present invention has excellent thermal/mechanical stability in the cracking process, and has less inactivation rate by coke and significantly increases light olefin yield.Type: ApplicationFiled: May 23, 2008Publication date: April 23, 2009Applicant: LG Chem, Ltd.Inventors: Jun-han Kang, Jong-hun Song, Jun-seon Choi, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh
-
Publication number: 20080081008Abstract: The present invention relates to an oxide catalyst and a phosphoric oxide catalyst for hydrocarbon steam cracking, method for preparing the same and a method for preparing olefin by using the same. More precisely, the present invention relates to an oxide catalyst for hydrocarbon steam cracking represented by formula 1 and a phosphoric oxide catalyst for hydrocarbon steam cracking represented by formula 3 which would be used for the production of olefin such as ethylene and propylene by hydrocarbon steam cracking, and a method for preparing the same. The present invention provides an oxide catalyst and a phosphoric oxide catalyst for hydrocarbon steam cracking that has excellent thermo-stability at high temperature and improved olefin yield. CrZrjAkOx??[Formula 1] CrZrjAkPlOx??[Formula 3] Wherein, j, k, l and x are as indicated in the description.Type: ApplicationFiled: September 24, 2007Publication date: April 3, 2008Applicants: LG CHEM, LTD., LG Petrochemical Co., Ltd.Inventors: Jun-seon Choi, Jun-Han Kang, Jong-hun Song, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh