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: 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: 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: 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: 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
  • Patent number: 9029624
    Abstract: An embodiment of the present invention relates to a method for treating spent caustic soda generated from an oil refinery process, a petrochemical process, etc. through a process in which a series of treatment steps are integrated, wherein the method can constitute a process under mild conditions excluding high temperature and/or high pressure conditions and can be advantageous to a post treatment process since the amount of by-products is small.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: May 12, 2015
    Assignee: SK Energy Co., Ltd.
    Inventors: Bang Un Song, Sung Ho Lee, Young Seek Yoon, Seung Hoon Oh
  • Patent number: 8980082
    Abstract: Disclosed herein is a method of simultaneously removing sulfur and mercury from a hydrocarbon material, including: hydrotreating the hydrocarbon material containing sulfur and mercury in the presence of a catalyst including a metal supported with a carrier to convert sulfur into hydrogen sulfide, and adsorb mercury on a metal active site or a carrier of the catalyst in the form of mercury sulfide.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: March 17, 2015
    Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.
    Inventors: Do Kyoung Kim, Do Woan Kim, Sang Il Lee, Seung Hoon Oh, Woo Kyung Kim, Han Seung Pan, Woo Young Kim, Kyung Soo Jun, Sun Choi
  • Patent number: 8784751
    Abstract: The present invention relates to a thermowell blocking apparatus for a high-pressure reactor used in a desulfurization process, which can rapidly prevent noxious high-temperature and high-pressure gases from leaking out of a high-pressure reactor when the noxious high-temperature and high-pressure gases leak from the high-pressure reactor due to unexpected damage occurring to a thermowell used for measuring a reaction temperature of a catalyst. The thermowell blocking apparatus can prevent the economic losses caused by the stoppage of the desulfurization process, and can reduce consequential damages to human life, the environment, and the like.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: July 22, 2014
    Assignees: SK Innovation Co., Inc., SK Energy Co., Ltd.
    Inventors: Hyung No Yoon, Sang Mo Lee, Jin Gyu Kim, Mock Huh, Choo Jei Kim
  • Patent number: 8676719
    Abstract: The present disclosure relates to a system for collecting and providing information on loaded/empty status of vehicles, which gathers loaded and empty vehicle information via the Internet and then provides shipping arrangement agencies in various regions information on freight for which a vehicle has not been dispatched and information on empty vehicles, from information collected on loaded and empty vehicles. Accordingly, multilevel procurement for freight is avoided, and freight can be delivered to a destination in a timely manner as requested by a merchant, which reduces freight transport charges and procurement fees.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: March 18, 2014
    Assignees: SK Innovation Co., Ltd., SK Energy Co. Ltd.
    Inventors: Gyu Tak Cha, Myoung Suk Yoon, Hwui Jin Park
  • Patent number: 8657938
    Abstract: Disclosed is a system for supplying breathing air to a work space, which adopts a triple air-supply structure including a main air-supply unit for compressing, drying and filtering air supplied from the atmosphere so that breathing air is supplied to the work space, a plant air-supply unit for supplying industrial air used in a process plant to the work space, and an emergency air-supply unit for supplying breathing air to the work space in an emergency, wherein the operation of respective air-supply units is organically controlled, thus increasing the reliability of the air supply.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: February 25, 2014
    Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.
    Inventors: Bum Su Kim, Hong Jun Kim
  • Patent number: 8652675
    Abstract: The present invention relates to a cooling structure of a lithium ion secondary battery system. The cooling structure of a lithium ion secondary battery system according to the present invention provides cooling channels for lithium battery unit cells accommodated by a laterally partitioned arrangement of main frames, each having a heat radiation part and lattice-shaped paths, and partitioning frames, and allows air, blown by a cooling fan, to cool the lithium battery unit cells while passing through the cooling channels and the lattice-shaped paths. Each of the main frames has a pair of passage slots formed in both sides thereof to allow the air blown by the cooling fan to be directly blown to each accommodated lithium battery unit cell, thus forming each secondary cooling channel communicating with the pair of passage slots.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: February 18, 2014
    Assignee: SK Energy Co. Ltd.
    Inventors: Jung Sik Yun, Jeon Keun Oh, Yu Rim Do
  • Publication number: 20130206575
    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: Application
    Filed: April 1, 2013
    Publication date: August 15, 2013
    Applicants: SK Energy Co., Ltd., Korea Institute of Energy Research
    Inventors: Korea Institute of Energy Research, SK Energy Co., Ltd.
  • Patent number: 8436223
    Abstract: The present invention relates to a method for the separation of C4 olefins and C4 paraffins from a C4 hydrocarbon mixed gas including butene-1, trans-2- butene, cis-2-butene, normal butane, isobutane, etc. The method of the present invention produces C4 olefins with high purity by introducing a gaseous C4 mixture into the adsorption tower loaded with adsorbent selectively adsorbing olefins to adsorb C4 olefins and to discharge C4 paraffins to the outlet of the tower, desorbing C4 olefins adsorbed on the adsorption tower with a desorbent C5 hydrocarbon, C6 hydrocarbon, etc.), and then separating the C4 olefin and the desorbent by a distillation process.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: May 7, 2013
    Assignees: Korea Institute of Energy Research, SK Energy Co., Ltd
    Inventors: Jong-Nam Kim, Jong-Ho Park, Seong-Jun Lee, Min-Su Ko, Hee Tae Beum, Jongkee Park, Chang Hyun Ko, Sang Sup Han, Soon-Haeng Cho
  • Patent number: 8431762
    Abstract: The present invention relates to 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. The above 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 adsorption 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 distillation 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 11, 2008
    Date of Patent: April 30, 2013
    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
  • Patent number: 8217623
    Abstract: The present invention relates, in general, to a battery voltage equalization apparatus and method, and, more particularly, to a charge equalization apparatus and method, which decrease the withstand voltages of semiconductor switching elements while maintaining charge equalization performance, thus making it easy to implement the secondary windings of transformers while reducing the costs of the charge equalization apparatus. The charge equalization apparatus includes N first transformers (T1 to Tn) connected in series with N series-connected batteries (B1 to Bn) and adapted to decrease voltages of overcharged batteries among the N batteries. A charge storage device (Cdump) stores energy supplied from the first transformers. A second transformer (TS) redistributes energy stored in the charge storage device to the N series-connected batteries.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: July 10, 2012
    Assignees: SK Energy Co. Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Jeon Keun Oh, Joong Hui Lee, Soo Yeup Jang, Gun Woo Moon, Chong Eun Kim, Hong Sun Park