Korea Institute of Science and Technology

Other

Dong-A Pharmaceutical Co., Ltd

Pegsphere Co., Ltd.

Sang Deuk Lee

Dong Ju Moon

Byoung Sung Ahn

Byung Gwon Lee

Hyun Joo Lee

Hoon Sik Kim

Jung Shik Kang

Moonju Park

Jong Woo Ryu

Ji Sik Choi

Hyunjoo Lee

Chang Soo Kim

Sojung Kim

Yun Ju Lee

Dong Min Kang

Yong Jin Kim

Hong Gon Kim

Kun You Park

Moon Jo Chung

Jong Min Park

Kyung Min Lee

Dong Sung Kim

Jun Hyuk Lee

Hye Jin Lee

Dong Jin Suh

Hyunah Choo

Hyun-Joo Lee

Young Soo Kwon

Kang Choon Lee

Moohi Yoo

Jong Sung Lim

Hang Goo Kim

Hyejeong Lee

Geun Jho Lim

Jong-sung Lim

Jungho Jae

Honggon Kim

Soon Hoe Kim

Mi Won Son

In-Seok Seo

Myoung Kyun Shin

Byung-Gwon Lee

Sang Hoon Joo

Chang-Nyeon Kim

Won Bae Kim

Jae Sung Yang

Min Young Cho

Young Soon Um

Jai Jun Kim

Joong In Lim

Yu Seok Youn

Jieon Lee

Hee Chan Shin

Byoung Ok Ahn

Heung Won Kang

Ik Yon Kim

Soon Hyeok Hong

Tran Huyen Dang

Nam Gi Baik

Tae Young Oh

Byung Kwon Ryu

Kean Im Lee

Hyoung Shick Yim

Eun Hur

Seung Rok Lim

Seungmi Yeo

Dong Hee Na

Su Hyun Cho

Jung Jo Jung

Dabon Lee

Yong Joon Lee

Disclosed is a novel catalyst for producing a methanol precursor. The use of the catalyst enables the production of a methanol precursor and methanol with high efficiency under low temperature and low pressure conditions. Also disclosed are a methanol precursor produced using the catalyst and methanol produced using the methanol precursor.

Catalyst for producing methanol precursor, methanol precursor produced using the catalyst and methanol produced using the methanol precursor

The apparatus includes: a pretreatment tank where biomass and a first acid solution are stirred to extract sugar components from the biomass; a hydrolysis tank where water is added to the pretreated mixture transferred from the pretreatment tank such that the concentration of the acid is reduced and the sugar components are hydrolyzed to produce an acid hydrolyzate; a first sugar-acid separation tank where the acid hydrolyzate is separated into a second acid solution and a first hydrolyzate; a second sugar-acid separation tank where the first hydrolyzate is separated into a third acid solution and a second hydrolyzate; a fermentation tank where the second hydrolyzate is fermented to produce bioenergy; and an acid solution concentration tank where a mixture of the second acid solution transferred from the first sugar-acid separation tank and the third acid solution transferred from the second sugar-acid separation tank is concentrated to a higher level for reuse.

Apparatus and method for bioenergy production using regenerated acid solution

The present invention relates to a portable flashlight, and more particularly to a portable flashlight which has a wireless switching function for turning on or off the flashlight by means of a radio signal in addition to a manual switch provided on the outside of the flashlight. The flashlight can not only be turned on or off by means of an external radio signal, but also be used in various ways such as turning on a part of the lamp or intermittently turning on the flashlight. A flashlight according to the present invention includes a power supply part, a lamp for generating a light by means of the power from the power supply part, and a manual switch connected between the lamp and the power supply part for switching the flashlight, characterized by further including a radio switch in addition to or instead of the manual switch, wherein the radio switch consists of a radio receiver for receiving an external radio signal to operate the radio switch.

Portable flashlight with wireless switching function

A method for preparing glycidol using glycerol includes mixing glycerol with urea in the presence of at least one zinc-based catalyst selected from the group consisting of Zn(NO), ZnCl, ZnO and Zn(OAc)under a pressure of 0.5-10 kPa at a temperature of 100-170&#xb0; C. to obtain glycerol carbonate; filtering the glycerol carbonate mixed with the zinc-based catalyst through an adsorbent including a polymer resin coordinated with amine groups to separate the zinc-based catalyst and glycerol carbonate from each other; and carrying out reaction of the glycerol carbonate separated from the zinc-based catalyst in the presence of an anion alkali metal salt catalyst that is Na, K, Rb, Cs or a mixture thereof containing at least one anion selected from the group consisting of Cl, Br, I, NO, NOand acetate under a pressure of 0.13-6.67 kPa at a temperature of 140-250&#xb0; C. to obtain glycidol.

Method for preparing glycidol using glycerol and glycidol obtained thereby

Disclosed are a gas to liquids (GTL)&#x2014;floating production, storage and offloading (FPSO) system that can be used in offshore oil-gas fields or stranded gas fields and a method for producing synthetic fuel using the same. More particularly, the disclosure relates to a GTL-FPSO system capable of producing liquid synthetic fuel from gas extracted from stranded gas fields or associated gas extracted from oil-gas fields, including a reforming reactor and a liquid hydrocarbon producer, and a method for producing the same.

GTL-FPSO system for conversion of stranded gas in stranded gas fields and associated gas in oil-gas fields, and process for production of synthetic fuel using the same

Disclosed are a gas to liquids (GTL)-floating production, storage and offloading (FPSO) system that can be used in offshore oil fields or stranded gas fields and a method for producing synthetic fuel using the same. More particularly, the disclosure relates to a GTL-FPSO system capable of producing liquid synthetic fuel from gas extracted from stranded gas fields or associated gas extracted from oil fields, including a reforming reactor and a liquid hydrocarbon producer, and a method for producing the same.

GTL-FPSO system for conversion of associated gas in oil fields and stranded gas in stranded gas fields, and process for production of synthetic fuel using the same

Disclosed is a method for producing glycidol by successive catalytic reactions. The method includes a series of reactions for the preparation of glycerol carbonate from glycerol and the decarboxylation of the glycerol carbonate. Specifically, the method includes i) reacting glycerol with a dialkyl carbonate to prepare glycerol carbonate, and ii) subjecting the glycerol carbonate to decarboxylation wherein a base is added as a catalyst in step i) and is allowed to react with an acid to form a metal salt after step i), and the salt is used as a catalyst in step ii). According to the method, inexpensive and easy-to-purchase acid and base catalysts can be used to produce glycidol from glycerol, a by-product of biodiesel production, as a starting material in high yield with high selectivity in a convenient, simple, and environmentally friendly way. In addition, the method eliminates the need to separate the base catalyst.

Method for producing glycidol by successive catalytic reactions

Disclosed is a method for producing glycidol by decarboxylation of glycerol carbonate. In the method, an ionic liquid catalyst is added for the reaction. According to the method glycidol can be produced in high yield and selectivity. The method enables the production of glycidol in an easy, simple and environmentally friendly way.

Method for producing glycidol

Disclosed is an sorbent for removing sulfur dioxide (SO) contained in combustion flue gases or in the atmosphere by using a diamine-based ionic liquid or a diamine compound supported by a polymer resin. To be specific, the present invention relates to a method of using a tertiary diamine compound immobilized on a polymer surface as a SOsorbent and also relates to a novel sorbent for absorbing or adsorbing a sulfur dioxide hydrate (SO.HO) formed by a bond between SOand water.

Sulfur dioxide and/or sulfur dioxide hydrate absorbent

Disclosed is a micro-macro channel reactor comprising: a top end plate and a bottom end plate assembled on the outskirts of the micro-macro channel reactor; a heat exchanging plate by which a heat exchanging material passes through passages thereof so that heat is transferred between the heat exchanging material and such a fluid as a reactant, a product, or a mixture thereof that passes through a catalyst plate; a catalyst plate stacked and assembled together with the heat exchanging plate and including a catalyst section containing a reaction catalyst necessary to perform a catalytic reaction of the reactant while the reactant is passing through the catalyst section; and a support plate stacked and assembled together with the catalyst plate and configured to provide passages that allows the reactant to pass through the catalyst section of the catalyst plate.

Micro-macro channel reactor

The present invention relates to synthetic peptides having selectively protected amines of untargeted sites and to methods for production thereof and for specifically conjugating PEG to targeted sites of the synthetic peptides using the same. The present invention provides a much higher yield of PEG conjugated peptides in which PEG is specifically combined to amines at targeted sites.

Peptides having protected amines of untargeted sites, methods for production thereof and of specifically conjugated PEG peptides using the same

The present invention relates to a structured catalyst for reforming of gasoline and a method of preparing the same, more particularly to a structured catalyst for reforming of gasoline for fuel-cell powered vehicles prepared by wash-coating the transition metal based reforming catalyst on the surface of the ceramic honeycomb support wash-coated with sub-micron sized alumina or its precursor to sufficiently increase the effective surface area and the performance of the catalyst and a method of preparing the same.

Structured catalyst for POX reforming of gasoline for fuel-cell powered vehicles applications and a method of preparing the same

The present invention relates to a solid oxide fuel cell for internal reforming of hydrocarbons and carbon dioxide, in particular, to a solid oxide fuel cell in which one side of solid oxide electrolyte (YSZ) is attached to an air electrode (LaSrMnO) and its other side is attached to a catalyst electrode of Ni-YSZ type or perovskite type metal oxide. The electrochemical conversion system using the solid oxide fuel cell permits the occurrence of internal reforming of hydrocarbons and carbon dioxide concomitantly with the coproduction of a syngas and electricity, and overcomes the shortcomings associated with the catalytic deactivation due to carbon deposition and the high-energy consumption.

Solid oxide fuel cell(SOFC) for coproducing syngas and electricity by the internal reforming of carbon dioxide by hydrocarbons and electrochemical membrane reactor system

Growing community of inventors

Seoul, South Korea

Sang Deuk Lee