Patents Assigned to SK Energy Co., Ltd.
  • Patent number: 11352294
    Abstract: Provided herein is an asphalt binder composition, and more particularly, an amine-containing asphalt binder composition capable of improving mixability between an asphalt binder and an aggregate, and compactibility and water resistance of an asphalt paving mixture. More particularly, the present invention relates to an asphalt binder composition capable of being used in hot mix asphalt for improving workability and/or stripping-resistance, warm-mix asphalt, recycling of reclaimed asphalt pavement, or the like.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: June 7, 2022
    Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.
    Inventors: Ki Byung Kim, Bo Ram Jeon, Won Jun Woo, Sang Seob Lee, Min Hee Lee, Haibo Zhao
  • Patent number: 11225615
    Abstract: Provided is a method of desalting crude oil capable of effectively removing metal impurities in the crude oil and a rag layer which is formed in a crude oil desalting process.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: January 18, 2022
    Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.
    Inventors: Yun Hee Lee, Joo Won Park
  • Patent number: 10883057
    Abstract: Provided is a method for separating normal paraffin and isoparaffin from raffinates of a benzene, toluene, and xylene (BTX) reforming process including C5 to C8 light naphtha, the method including: a liquid hydrogenation process for removing olefin by feeding raffinates in which hydrogen is dissolved into a reactor filled with a hydrogenation catalyst.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: January 5, 2021
    Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.
    Inventors: Hyeon Hui Lee, Min Su Koo, Young Bin Seo, Hye Ryun Seo, Ju Hoe Kim
  • Patent number: 10647627
    Abstract: The present disclosure relates to a method for upgrading hydrocarbon using C4, C5 and C6 streams, and more specifically, to a method for upgrading hydrocarbons using C4, C5 and C6 streams. The method includes the steps of: preparing C4, C5 and C6 streams, which are the products of naphtha catalytic cracking (NCC) process, heavy oil upgrading process, thermal cracking process, or fluidized catalytic cracking (FCC or RFCC) process; oligomerizing the C4, C5 and C6 streams with a catalyst to produce branched unsaturated hydrocarbons; and fractional distillating the branched unsaturated hydrocarbons to separate into C14-18 products or C32-40 products.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: May 12, 2020
    Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.
    Inventors: Hee-Jung Jeon, Yong-Woo Kim
  • Patent number: 10385277
    Abstract: Disclosed herein is a catalyst for producing biodiesel, including a carrier having water resistance and an active component supported on the carrier and used in a hydrotreating reaction or a decarboxylation reaction. Since the catalyst for producing biodiesel includes a carrier having strong water resistance, the deactivation of the catalyst due to the water produced through a process of producing HBD can be prevented, thus remarkably improving the long term stability of a catalyst.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: August 20, 2019
    Assignees: SK INNOVATION CO., LTD., SK ENERGY CO., LTD.
    Inventors: Sang Il Lee, Do Woan Kim, Hee Jung Jeon, Sang Jun Ju, Jae Wook Ryu, Gyung Rok Kim, Seung Hoon Oh
  • Patent number: 10337035
    Abstract: The present invention provides a fed-batch culture method comprising a step of fed-batch-feeding a carbon source base and a base in such a manner that the pH level can be maintained at a level suitable for the growth of microorganisms for fermentation of a carbon source. The present invention also provides a method for preparing organic acids using the fed-batch culture method. The present invention fed-batch-feeds a neutralizing agent such as ammonium bicarbonate, ammonium carbonate or alkali metal-containing weak base, and a carbon source substrate in preparing organic acids by microorganism fermentation. Thus, a pH level suitable for the survival of microorganisms for carbon source fermentation can be maintained, and the speed of injecting the carbon source base which is the source material can be appropriately adjusted.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: July 2, 2019
    Assignees: SK INNOVATION CO., LTD., SK ENERGY CO., LTD.
    Inventors: Jae Yeon Park, Sin Young Kang, Woo Chan Park, Min Su Koo, In Ho Cho, Joong Min Park, Seung Yeop Lee, Dong Hyun Kim
  • Patent number: 10131851
    Abstract: Disclosed is a method of removing metals from hydrocarbon oil, comprising: supplying a feed including hydrocarbon oil; mixing the feed with an aqueous solution including a metal scavenger to prepare a first mixture; separating the first mixture into a first aqueous solution phase and a first hydrocarbon phase and discharging the separated first aqueous solution phase; mixing the separated first hydrocarbon phase with washing water to produce a second mixture; separating the second mixture into a second aqueous solution phase and a second hydrocarbon phase; and recovering the separated second hydrocarbon phase and recirculating the separated second aqueous solution phase.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: November 20, 2018
    Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.
    Inventors: Min Kyoung Kim, Jin Su Ham, Ki Seok Choi, Chang Kuk Kim, Min Hoe Yi
  • Patent number: 10030223
    Abstract: An apparatus comprises: a hopper for feeding biomass; a horizontal extruder comprising a cylindrical housing and a rotatable screw mounted in the housing, in which one side of the housing is connected to the hopper, and an outlet provided at the other side of the housing is connected to an inlet for feeding biomass into a refiner; and a refiner comprising a stator disc having a cooling water space formed on the outer peripheral surface thereof, one or more enzyme feeding holes provided in a refining region adjacent to the circumference of the stator disc, and a biomass inlet provided at the central portion thereof, and a refining disc which is disposed so as to form a gap with the inner surface of the stator disc and to have a refining region opposite to that of the stator disc and is rotated by a separate motor.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: July 24, 2018
    Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.
    Inventors: Taewan Kim, Bonwook Koo, Minsu Koo
  • Patent number: 10023817
    Abstract: The present invention relates to a gasification process for efficiently co-producing synthesis gas and high-grade coal from water-containing coal, and to an integrated drying and gasification system for realizing the same.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: July 17, 2018
    Assignees: SK INNOVATION CO., LTD., SK ENERGY CO., LTD.
    Inventors: Yong Jeon Kim, Jong Sund Park, Gyoo Tae Kim, Nan Hee Ko, Chun Won Lee, Jae Wook Shin
  • Patent number: 9976161
    Abstract: A reactor for continuous saccharification of biomass having a high solid content comprises perforated plates and stirring means, in which the perforated plates includes nozzles for feeding additives, including a saccharification enzyme, and a sensor, which communicate with the holes of the perforated plates.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: May 22, 2018
    Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.
    Inventors: Taewan Kim, Minsu Koo, Younghwan Chu, Donghyun Kim, Taeseung Kim, Bonwook Koo, Minji Sung
  • Patent number: 9920667
    Abstract: The present invention relates to a water drain system of an oil reserve tank, which comprises: an oil reserve tank; an oil and water separator for separating the drained water coming from the oil reserve tank; a drain pipe extended from the oil reserve tank to the oil and water separator, the drain pipe having a vertical part to form a step; and a water detection sensor installed in the vertical part.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: March 20, 2018
    Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.
    Inventors: Chi Myong Kwon, Jang Heon Lee, Hee Duck Park, Hye Min Choi, Yoo Keun Kim, Ki Young Bae, Cheol Hong
  • Patent number: 9909076
    Abstract: The present invention relates to a gasification process for efficiently co-producing synthesis gas and high-grade coal from water-containing coal, and to an integrated drying and gasification system for realizing the same.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: March 6, 2018
    Assignees: SK INNOVATION CO., LTD., SK ENERGY CO., LTD.
    Inventors: Yong Jeon Kim, Jong Sung Park, Gyoo Tae Kim, Nan Hee Ko, Chun Won Lee, Jae Wook Shin
  • Patent number: 9663738
    Abstract: Provided is a carbon fuel pneumatic dryer in which synthesis gas generated in a reactor is fed and cooled, including: a feeding part formed as a narrow pipe, via which synthesis gas and carbon fuel are fed; a drying part formed as a pipe having a larger diameter than the feeding part, in which the hot synthesis gas fed via the feeding part is cooled and the moisture content of the carbon fuel is lowered; and a conveying part formed as a pipe having a smaller diameter than the drying part such that the flow velocity of the synthesis gas and the carbon fuel having passed the drying part is increased, wherein the conveying part includes a bend so that the flow direction of the synthesis gas and the carbon fuel is changed.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: May 30, 2017
    Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.
    Inventors: Min Hoe Yi, Gyoo Tae Kim, Ju Hoe Kim, Jin Hwan Bang, Sung Kwang Lim, Ho Jun Song, Jae Wook Shin
  • Patent number: 9624448
    Abstract: Disclosed herein are a method of preparing a hydrocarbon oil blend having superior storage stability using a novel stability prediction model that is quick, easy and reliable; and a method of predicting the stability of a hydrocarbon blend.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: April 18, 2017
    Assignees: SK INNOVATION CO., LTD., SK ENERGY CO., LTD.
    Inventors: Chang Woo Joo, Yun Hee Lee, Ki Seok Choi, Gwang Hyoun Kim, Young Suk Kim, Myoung Han No, Dong Wook Park, Eun Kyoung Kim
  • Patent number: 9556392
    Abstract: This invention relates to an integrated gasification apparatus for carbonaceous fuel, wherein high-pressure steam produced during a gasification process of carbonaceous fuel is directly used to dry the carbonaceous fuel, and steam obtained through the drying process is directly used in a water gas shift process.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: January 31, 2017
    Assignees: SK INNOVATION CO., LTD, SK ENERGY CO., LTD.
    Inventors: Min Hoe Yi, In Kwon Bae, Gyoo Tae Kim, Jae Wook Shin
  • Patent number: 9499753
    Abstract: The present invention relates to a gasification process and system, wherein a dryer integrated with a water-gas-shift catalyst is disposed in front of a gasifier.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: November 22, 2016
    Assignees: SK INNOVATION CO., LTD., SK ENERGY CO., LTD.
    Inventors: Jong Sung Park, Ji Sung Park, Cheon Seong Lee, Gyoo Tae Kim, Jae Wook Shin, Yong Jeon Kim
  • Patent number: 9482656
    Abstract: Provided is a method of identifying authenticity of oil by reacting oil marked by a Oil Marker Composition with a developer to develop a color and then measuring absorbance. According to the present invention, an oil maker capable of quantitatively and qualitatively measuring authenticity of oil due to a rapid reaction rate, excellent reproducibility, and distinct color development that may be observed by the naked eyes, and a method of identifying oil using the same.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: November 1, 2016
    Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.
    Inventors: Su Jin Lee, Dong Seok Jang, Eun Hee Park, Jin Su Ham, Joon Sik Lee, Jong Ho Lim
  • Publication number: 20150344794
    Abstract: This invention relates to an integrated gasification apparatus for carbonaceous fuel, wherein high-pressure steam produced during a gasification process of carbonaceous fuel is directly used to dry the carbonaceous fuel, and steam obtained through the drying process is directly used in a water gas shift process.
    Type: Application
    Filed: December 24, 2013
    Publication date: December 3, 2015
    Applicant: SK ENERGY CO., LTD.
    Inventors: Min Hoe YI, In Kwon BAE, Gyoo Tae KIM, Jae Wook SHIN
  • Patent number: 9127215
    Abstract: Provided is a method for reducing the amount of organic acids in a hydrocarbon oil fraction by hydrogenating the organic acids in the hydrocarbon oil fraction under mild conditions. Provided is a new method able to overcome the problem of organic-acid-induced corrosion during the process of distillation, by using hydrogen or a hydrogen-containing mixed gas and a hydrogenation catalyst to subject the organic acids in the hydrocarbon oil fraction to hydrogenation at an appropriate temperature and pressure, thereby converting the same to hydrocarbons and so reducing the amount of organic acids in the hydrocarbon oil fraction.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: September 8, 2015
    Assignees: SK INNOVATION CO., LTD., SK ENERGY CO., LTD.
    Inventors: Jin Kyu Choi, Cheol Woo Park, Tae Won Uhm, Il Yong Jeong, Ha Na Song, Do Woan Kim, Hee Jung Jeon, Gyung Rok Kim, Cheol Joong Kim, Do Hyoun Kim, Chang Woo Joo
  • Patent number: 9067852
    Abstract: A hybrid process comprising an adsorption process and a distillation process for the separation of butene-1 from a C4 hydrocarbon mixture gas including butene-1, trans-2-butene, cis-2-butene, normal butane, isobutane, etc. is provided. The hybrid process comprises introducing a gaseous C4 mixture into the adsorption tower loaded with adsorbents which adsorb olefins selectively to discharge C4 paraffins to the outlet of the tower, desorbing C4 olefins selectively adsorbed in the adsortion tower to produce high purity C4 olefins mixture gas in which isobutane and normal butane was removed, and separating the high C4 olefins mixture gas (a mixture of butene-1, trans-2-butene, cis-2-butene, and a trace amount of C4 paraffins) via distinction to obtain high purity butene-1 including a trace amount of isobutane in the top of the distillation tower and obtain a mixture gas including trans-2-butene, cis-2-butene and a trace amount of normal butane in the bottom of the tower.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: June 30, 2015
    Assignees: KOREA INSTITUTE OF ENERGY RESEARCH, SK ENERGY CO., LTD
    Inventors: Jong-Ho Park, Jong-Nam Kim, Seong-Jun Lee, Min-Su Ko, Hee Tae Beum, Jongkee Park, Chang Hyun Ko, Sang Sup Han, Soon-Haeng Cho