Korea Institute of Energy Research

Lg Chem, Ltd

Other

Seong-Pil Kang

Dongwook Lee

Hak Joo Kim

Jong-Nam Kim

Young Eun Kim

Jun-Seok Ko

Sung-Soo Park

Boo-Gon Woo

Se-Won Baek

Kyoung-Su Ha

Geon-Yong Kim

Kisub Kim

Jong-Won Lee

Ki Tae Park

Soon Kwan Jeong

Min Hye Youn

Wonhee Lee

Eun-Ju Kim

Young-Bae Kim

Ji Min Kang

Seok-Hwan Choi

Arti Murnandari

Yong Koo Kim

Howon Ra

Boo-Gon c/o Lg Chemical DevCorp Woo

Sang-Youn Lee

Koo-Hyun Kang

Seok-Hwan c/o Lg ChemDevCorp Choi

Kyoung-Su 102-2104 Daerim Hansup Town Ha

Min-Jeong Park

The present invention relates to a method for continuous removal of carbon dioxide, the method comprising the steps of: a) preparing an aqueous solution containing an amine-based compound and an acidic calcium compound; b) bringing a gas containing carbon dioxide to be treated into contact with the aqueous solution to prepare a calcium carbonate precipitate; and c) recovering the calcium carbonate and then adding a basic calcium compound to the residual aqueous solution, wherein after step c), step b) and step c) are repeatedly performed. The removal of carbon dioxide by the method of the present invention has advantages of requiring low energy and being capable of mineralizing and removing carbon dioxide at a fast rate without a separate time for induction.

Method and apparatus for continuous removal of carbon dioxide

The present invention provides a method for inhibiting structure II (sII) gas hydrate formation which comprises treating (i) a gas hydrate inhibitor and (ii) at least one additive selected from the group consisting of N-hexyl-N-methyl-pyrrolidinium tetrafluoroborate (HMP-BF), M-hydroxyethyl-N-methyl-pyrrolidinium tetrafluoroborate (HEMP-BF), N-ethyl-N-methyl-immidazolium tetrafluoroborate (EMIM-BF) and N-ethyl-N-methyl-pyrrolidinium tetrafluoroborate (EMP-BF) in water, which is in contact with a gas mixture of forming structure II gas hydrate. The additives according to the present invention can exhibit the same or greater effects of inhibiting the formation of the structure II gas hydrate through an interaction, even when the amount of a gas hydrate inhibitor is reduced.

Method for inhibiting structure II gas hydrate formation

The present invention provides a method of separating ethylene or ethane from a mixed gas containing ethylene and ethane using hydroquinone. According to the present invention, hydroquinone selectively forms a clathrate with ethylene, and thus it is possible to separate ethylene with high yield and purity through a single process.

Method for separating ethylene or ethane from mixed gas

Disclosed herein is a composition for inhibiting a gas hydrate formation, the composition including an ionic liquid compound and polyvinylcaprolactam. The composition can reduce the formation rate of a gas hydrate under the same environment in small quantity, thus remarkably extending the induction time of a gas hydrate formation.

Composition and method for inhibiting gas hydrate formation

The present invention relates to an ionic liquid compound that inhibits a formation of a gas hydrate. The compound of the present invention changes an equilibrium temperature and pressure of a gas hydrate in small quantity into a lower temperature and/or a higher pressure, and simultaneously retards the formation of the gas hydrate under the same environment. Thus, the compound of the present invention is used in oil and natural gas industries to effectively inhibit or delay the formation of the gas hydrate under the condition having a low temperature and a high pressure.

Gas hydrate inhibitor and method of inhibiting gas hydrate formation

A heat exchange-type reactor includes a reaction chamber () having mounted therein a plurality of contact tubes () filled with a catalyst material; at least one shield plate () mounted within the reaction chamber to partition an inner space of the reaction chamber into at least two separate spaces (); a plurality of conduits () having entrance () and exit () openings through which a heat transfer medium respectively enters and exits, and being mounted to an outer circumference of the reaction chamber () corresponding to the partitioned spaces (); and a heat exchange unit connected to the conduits () to perform heat exchange of the heat transfer medium, in which the heat exchange unit includes a single heat exchanger that performs the exchange of heat of the heat transfer medium in accordance with the partitioned spaces.

Catalytic oxidation reactor with enhanced heat exchanging system

The present invention relates to a facility parts cleaning solution for the processing of (meth)acrylic acid and/or (meth)acrylic esters and a cleaning method using the cleaning solution. An aqueous cleaning composition comprising 5 to 50 wt % of at least one alkali metal hydroxide selected from the group consisting of sodium hydroxide and potassium hydroxide, 0.01 to 1 wt % of a water-soluble amino acid, 0.001 to 0.05 wt % of N,N'-methylene bisacrylamide, and 0.001 to 0.05 wt % of azobisisobutyronitrile is used to clean facility parts for manufacturing (meth)acrylic acid and/or (meth)acrylic esters in order to easily remove polymers and deposits.

Facility parts cleaning solution for processing of (meth)acrylic acid and/or (meth)acrylic esters and cleaning method using said cleaning solution

Growing community of inventors

Daejeon, South Korea

Seong-Pil Kang