Patents by Inventor Ho-Tae Lee

Ho-Tae Lee 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).

  • Patent number: 10981159
    Abstract: The present invention comprises: a separable material injection part for injecting a material therein; a mixing part for mixing the material injected in the material injection part; an aging part for aging, at a high temperature, the material mixed in the mixing part; and a firing part for supporting, on a support, the material aged in the aging part.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: April 20, 2021
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Ji-chan Park, Dong Hyun Chun, Jung-il Yang, Heon-do Jeong, Heon Jung, Ho-tae Lee, Dong-wook Lee, Chan-woo Lee, Shin Wook Kang
  • Patent number: 10508243
    Abstract: The present invention relates to a method for producing liquid or solid hydrocarbons from a synthesis gas via Fischer-Tropsch synthesis which does not carry out a separate reduction pre-treatment for catalyst activation. The method for producing liquid or solid hydrocarbons from a synthesis gas using Fischer-Tropsch synthesis according to the present invention comprises: a first step of applying an iron-based catalyst for the Fischer-Tropsch synthesis in which the number of iron atoms in the ferrihydrite phase fraction equals 10 to 100% and the number of iron atoms in the hematite phase fraction equals 0 to 90%, with respect to 100% of the number of the number of iron atoms, to a Fischer-Tropsch synthesis reactor; and a second step of activating the catalyst for the Fischer-Tropsch synthesis by a synthesis gas which is a reactant under the conditions of the Fischer-Tropsch synthesis and carrying out the Fischer-Tropsch synthesis by means of the activated catalyst for the Fischer-Tropsch synthesis.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: December 17, 2019
    Assignee: Korea Institute of Energy Research
    Inventors: Dong Hyun Chun, Heon Jung, Sung Jun Hong, Ji Chan Park, Ho Tae Lee, Jung Il Yang
  • Publication number: 20190247841
    Abstract: The present invention comprises: a separable material injection part for injecting a material therein; a mixing part for mixing the material injected in the material injection part; an aging part for aging, at a high temperature, the material mixed in the mixing part; and a firing part for supporting, on a support, the material aged in the aging part.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 15, 2019
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Ji-chan PARK, Dong Hyun CHUN, Jung-il YANG, Heon-do JEONG, Heon JUNG, Ho-tae LEE, Dong-wook LEE, Chan-woo LEE, Shin Wook KANG
  • Patent number: 10358457
    Abstract: The present invention relates to a metal oxalate hydrate body having a certain shape, a preparation method thereof, and a metal oxide/carbon composite body prepared by using the metal oxalate hydrate body. In the present invention, the metal oxalate body, whose shape is diversely controlled, and the metal oxide/carbon composite body therefrom are provided.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: July 23, 2019
    Assignee: Korea Institute of Energy Research
    Inventors: Ji Chan Park, Heon Jung, Ho Tae Lee, Jung Il Yang, Dong Hyun Chun, Sung Jun Hong, Seok Yong Hong
  • Patent number: 10112172
    Abstract: The present invention relates to an egg-shell type hybrid structure of highly dispersed nanoparticles-metal oxide support, a preparation method thereof, and a use thereof. Specifically, the present invention relates to an egg-shell type hybrid structure of highly dispersed nanoparticles-metal oxide support, providing an excellent platform in a size of nanometers or micrometers which can support nanoparticles selectively in the porous shell portion by employing a metal oxide support with an average diameter of nanometers or micrometers including a core of nonporous metal oxide and a shell of porous metal oxides, a preparation method thereof, and a use thereof.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: October 30, 2018
    Assignee: Korea Institute of Energy Research
    Inventors: Ji Chan Park, Jung Il Yang, Heon Jung, Ho Tae Lee, Dong Hyun Chun, Sung Jun Hong, Jae In Kwon
  • Patent number: 10081008
    Abstract: The present invention provides an iron-carbide/silica composite catalyst that is highly reactive to a Fischer-Tropsch synthesis by firstly forming an iron-silicate structure having large specific surface area and well-developed pores through a hydrothermal reaction of an iron salt with a silica particle having a nanostructure, and then activating the iron-silicate structure in a high temperature carbon monoxide atmosphere. When using the iron-carbide/silica composite catalyst according to the present invention in the Fischer-Tropsch synthesis reaction, it is possible to effectively prepare liquid hydrocarbon with a high CO conversion rate and selectivity.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: September 25, 2018
    Assignee: Korea Institute of Energy Research
    Inventors: Ji Chan Park, Dong Hyun Chun, Heon Jung, Ho Tae Lee, Jung Il Yang, Sung Jun Hong
  • Publication number: 20180112136
    Abstract: The present invention relates to a method for producing liquid or solid hydrocarbons from a synthesis gas via Fischer-Tropsch synthesis which does not carry out a separate reduction pre-treatment for catalyst activation. The method for producing liquid or solid hydrocarbons from a synthesis gas using Fischer-Tropsch synthesis according to the present invention comprises: a first step of applying an iron-based catalyst for the Fischer-Tropsch synthesis in which the number of iron atoms in the ferrihydrite phase fraction equals 10 to 100% and the number of iron atoms in the hematite phase fraction equals 0 to 90%, with respect to 100% of the number of the number of iron atoms, to a Fischer-Tropsch synthesis reactor; and a second step of activating the catalyst for the Fischer-Tropsch synthesis by a synthesis gas which is a reactant under the conditions of the Fischer-Tropsch synthesis and carrying out the Fischer-Tropsch synthesis by means of the activated catalyst for the Fischer-Tropsch synthesis.
    Type: Application
    Filed: April 22, 2016
    Publication date: April 26, 2018
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Dong Hyun CHUN, Heon JUNG, Sung Jun HONG, Ji Chan PARK, Ho Tae LEE, JUNG IL YANG
  • Patent number: 9789472
    Abstract: A method for preparing an iron-based catalyst, the method including preparing iron ore particles by grinding iron ore; and impregnating the iron ore particles with a first metal and second metal, wherein the first metal is selected from copper, cobalt, or manganese, or a combination thereof, and the second metal is selected from an alkali metal or alkali earth metal, or a combination thereof.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: October 17, 2017
    Assignees: KOREA INSTITUTE OF ENERGY RESEARCH, UNIVERSIDAD DE ANTIOQUIA
    Inventors: Dong Hyun Chun, Ji Chan Park, Heon Jung, Fanor Mondragon Pérez, María Angélica Forgionny Flórez, Ho-Tae Lee, Jung-Il Yang, SungJun Hong
  • Patent number: 9776175
    Abstract: The present invention relates to a method for preparing liquid or solid hydrocarbons from syngas via the Fischer-Tropsch synthesis in the presence of iron-based catalysts, the iron-based catalysts for the use thereof, and a method for preparing the iron-based catalysts; more specifically, in the Fischer-Tropsch reaction, liquid or solid hydrocarbons may be prepared specifically with superior productivity and selectivity for C5+ hydrocarbons using the iron-based catalysts comprising iron hydroxide, iron oxide, and iron carbide wherein the number of iron atoms contained in the iron hydroxide is 30% or higher, and the number of iron atoms contained in the iron carbide is 50% or lower, relative to 100% of the number of iron atoms contained in the iron-based catalysts.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: October 3, 2017
    Assignee: Korea Institute of Energy Research
    Inventors: Dong Hyun Chun, Ji Chan Park, Heon Jung, Ho-Tae Lee, Jung-Il Yang, Sungjun Hong
  • Publication number: 20170065965
    Abstract: The present invention provides an iron-carbide/silica composite catalyst that is highly reactive to a Fischer-Tropsch synthesis by firstly forming an iron-silicate structure having large specific surface area and well-developed pores through a hydrothermal reaction of an iron salt with a silica particle having a nanostructure, and then activating the iron-silicate structure in a high temperature carbon monoxide atmosphere. When using the iron-carbide/silica composite catalyst according to the present invention in the Fischer-Tropsch synthesis reaction, it is possible to effectively prepare liquid hydrocarbon with a high CO conversion rate and selectivity.
    Type: Application
    Filed: May 15, 2015
    Publication date: March 9, 2017
    Applicant: Korea Institute of Energy Research
    Inventors: Ji Chan Park, Dong Hyun Chun, Heon Jung, Ho Tae Lee, Jung Il Yang, Sung Jun Hong
  • Patent number: 9586198
    Abstract: This invention relates to a cobalt-based catalyst on a metal structure for selective production of synthetic oil via Fischer-Tropsch reaction, a method of preparing the same and a method of selectively producing synthetic oil using the same, wherein zeolite, cobalt and a support are mixed and ground to give a catalyst sol, which is then uniformly thinly applied on the surface of a metal structure using a spray-coating process, thereby preventing generation of heat during Fischer-Tropsch reaction and selectively producing synthetic oil having a carbon chain shorter than that of wax.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: March 7, 2017
    Assignee: Korea Institute of Energy Research
    Inventors: Ji-Chan Park, Heon Jung, Ho-Tae Lee, Jung-Il Yang, Dong-Hyun Chun, Sung-Jun Hong
  • Publication number: 20170001168
    Abstract: The present invention relates to an egg-shell type hybrid structure of highly dispersed nanoparticles-metal oxide support, a preparation method thereof, and a use thereof. Specifically, the present invention relates to an egg-shell type hybrid structure of highly dispersed nanoparticles-metal oxide support, providing an excellent platform in a size of nanometers or micrometers which can support nanoparticles selectively in the porous shell portion by employing a metal oxide support with an average diameter of nanometers or micrometers including a core of nonporous metal oxide and a shell of porous metal oxides, a preparation method thereof, and a use thereof.
    Type: Application
    Filed: July 31, 2015
    Publication date: January 5, 2017
    Applicant: Korea Institute of Energy Research
    Inventors: Ji Chan Park, Jung Il Yang, Heon Jung, Ho Tae Lee, Dong Hyun Chun, Sung Jun Hong, Jae In Kwon
  • Patent number: 9533292
    Abstract: This invention relates to a method of preparing an iron carbide/carbon nanocomposite catalyst containing potassium for high temperature Fischer-Tropsch (FT) synthesis reaction and the iron carbide/carbon nanocomposite catalyst prepared thereby, and a method of manufacturing a liquid hydrocarbon using the same and a liquid hydrocarbon manufactured thereby, wherein a porous carbon support is uniformly impregnated with an iron hydrate using melt infiltration, and potassium is also supported together via various addition processes, including a pre-addition process of a potassium salt which is ground upon impregnation with the iron hydrate, or a mid- or post-addition process of a potassium solution using incipient wetness impregnation after impregnation with the iron hydrate.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: January 3, 2017
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Ji Chan Park, Heon Jung, Ho Tae Lee, Jung Il Yang, Dong Hyun Chun, Sung Jun Hong
  • Patent number: 9517452
    Abstract: The present invention relates to a metal carbide/carbon composite body having a porous structure, in which core-shell unit particles are three-dimensionally connected, a preparation method thereof, and the use of the composite body. More specifically, the present invention provides a metal carbide/carbon composite body, a preparation method thereof, and the use of the composite body, wherein the composite body is formed by high-temperature calcination of a metal oxalate hydrate body under a carbon monoxide-containing gas atmosphere, wherein the metal carbide/carbon composite body has a porous structure in which core-shell unit particles are three-dimensionally connected, wherein the core-shell unit particles comprise a metal carbide core formed by thermal decomposition of a metal oxalate hydrate; and a graphitic carbon shell, the product resulting from Boudouard reaction of carbon monoxide, formed on the metal carbide core.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: December 13, 2016
    Assignee: Korea Institute of Energy Research
    Inventors: Ji Chan Park, Heon Jung, Ho Tae Lee, Jung Il Yang, Dong Hyun Chun, Sung Jun Hong, Seok Yong Hong
  • Patent number: 9498774
    Abstract: The present invention relates to a composite body in which first metal-containing particles and second metal-containing particles are supported on a carbon material or connected by a carbon material, and a method for producing the same. The above composite body can, if the first metal-containing particles exhibit a catalytic activity, be applied as a reaction catalyst and can also be used in various fields such as the manufacture of the adsorbent or the separation membrane.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: November 22, 2016
    Assignee: Korea Institute of Energy Research
    Inventors: Ji Chan Park, Heon Jung, Ho Tae Lee, Jung Ii Yang, Dong Hyun Chun, Sung Jun Hong
  • Publication number: 20160303555
    Abstract: This invention relates to a cobalt-based catalyst on a metal structure for selective production of synthetic oil via Fischer-Tropsch reaction, a method of preparing the same and a method of selectively producing synthetic oil using the same, wherein zeolite, cobalt and a support are mixed and ground to give a catalyst sol, which is then uniformly thinly applied on the surface of a metal structure using a spray-coating process, thereby preventing generation of heat during Fischer-Tropsch reaction and selectively producing synthetic oil having a carbon chain shorter than that of wax.
    Type: Application
    Filed: October 24, 2013
    Publication date: October 20, 2016
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Ji-Chan PARK, Heon JUNG, Ho-Tae LEE, Jung-ll YANG, Dong-Hyun CHUN, Sung-Jun HONG
  • Publication number: 20160096167
    Abstract: The present invention relates to a metal carbide/carbon composite body having a porous structure, in which core-shell unit particles are three-dimensionally connected, a preparation method thereof, and the use of the composite body. More specifically, the present invention provides a metal carbide/carbon composite body, a preparation method thereof, and the use of the composite body, wherein the composite body is formed by high-temperature calcination of a metal oxalate hydrate body under a carbon monoxide-containing gas atmosphere, wherein the metal carbide/carbon composite body has a porous structure in which core-shell unit particles are three-dimensionally connected, wherein the core-shell unit particles comprise a metal carbide core formed by thermal decomposition of a metal oxalate hydrate; and a graphitic carbon shell, the product resulting from Boudouard reaction of carbon monoxide, formed on the metal carbide core.
    Type: Application
    Filed: August 28, 2015
    Publication date: April 7, 2016
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Ji Chan Park, Heon Jung, Ho Tae Lee, Jung Il Yang, Dong Hyun Chun, Sung Jun Hong, Seok Yong Hong
  • Publication number: 20160083410
    Abstract: The present invention relates to a metal oxalate hydrate body having a certain shape, a preparation method thereof, and a metal oxide/carbon composite body prepared by using the metal oxalate hydrate body. In the present invention, the metal oxalate body, whose shape is diversely controlled, and the metal oxide/carbon composite body therefrom are provided.
    Type: Application
    Filed: November 10, 2015
    Publication date: March 24, 2016
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Ji Chan Park, Heon Jung, Ho Tae Lee, Jung Il Yang, Dong Hyun Chun, Sung Jun Hong, Seok Yong Hong
  • Publication number: 20160045901
    Abstract: The present invention relates to a method for preparing liquid or solid hydrocarbons from syngas via the Fischer-Tropsch synthesis in the presence of iron-based catalysts, the iron-based catalysts for the use thereof, and a method for preparing the iron-based catalysts; more specifically, in the Fischer-Tropsch reaction, liquid or solid hydrocarbons may be prepared specifically with superior productivity and selectivity for C5+ hydrocarbons using the iron-based catalysts comprising iron hydroxide, iron oxide, and iron carbide wherein the number of iron atoms contained in the iron hydroxide is 30% or higher, and the number of iron atoms contained in the iron carbide is 50% or lower, relative to 100% of the number of iron atoms contained in the iron-based catalysts.
    Type: Application
    Filed: June 18, 2015
    Publication date: February 18, 2016
    Inventors: Dong Hyun CHUN, Ji Chan PARK, Heon JUNG, Ho-Tae LEE, Jung-Il YANG, Sungjun HONG
  • Publication number: 20150298114
    Abstract: The present invention relates to a composite body in which first metal-containing particles and second metal-containing particles are supported on a carbon material or connected by a carbon material, and a method for producing the same. The above composite body can, if the first metal-containing particles exhibit a catalytic activity, be applied as a reaction catalyst and can also be used in various fields such as the manufacture of the adsorbent or the separation membrane.
    Type: Application
    Filed: June 16, 2015
    Publication date: October 22, 2015
    Inventors: Ji Chan Park, Heon Jung, Ho Tae Lee, Jung Il Yang, Dong Hyun Chun, Sung Jun Hong