Korea Institute of Energy Research

Korea Institute of Machinery & Materials

Korea Institute of Industrial Technology

Young Cheol Park

Seung-yong Lee

Jong-Ho Moon

Sung-ho Jo

Chang-keun Yi

Ho-jung Ryu

Dong-ho Lee

Gyoung-tae Jin

Dal-hee Bae

Jae-hyeon Park

Do-won Shun

Jong-ho Moon

Jaehyeon Park

Hyo Jin Lee

Jeom In Baek

Dal-Hee Bae

Dowon Shun

Gyoung Tae Jin

Jeong-gu Yeo

Jung-hyun Lee

Do Yeon Lee

Doyeon Lee

Dal Hee Bae

Do Won Shun

Chang Won Yang

Hee-Yeon Kim

Uen Do Lee

Seung Yong Lee

Woong Jin Oh

Jae Goo Lee

Young Doo Kim

Ji Hong Moon

Hyun Seol Park

Hyunuk Kim

Soo Hwa Jeong

Myung Won Seo

Sung Ho Cho

Dahun Lee

Sang In Keel

Dong-hyuk Chun

Si Hyun Lee

Tae Young Mun

Byeong Ryeol Bang

Joon Mok Shim

ChungKyu Lee

Ho Jung Ryu

Jae Hyeon Park

Jin Han Yun

Hoon Beom Park

Muhammad Sohail

Hyun-uk Kim

Gyong Tae Jin

Chang Keun Yi

Dowan Shun

Yun Tae Hwang

Sung Ho Jo

Pil Woo Heo

Keun-hee Han

Jong Ho Moon

Soo-Hwa Jeong

The present disclosure relates to a cucurbituril-polyethylenimine-silica complex, a method for preparing the same and a carbon dioxide absorbent containing the same. According to the present disclosure, a cucurbituril-polyethylenimine-silica complex may be prepared by forming a complex wherein a cucurbituril is bound to polyethylenimine and including the same inside silica, and it may be used as a carbon dioxide absorbent with superior thermal stability and prevented formation of urea.

Cucurbituril-polyethylenimine-silica complex, preparation method thereof and carbon dioxide absorbent comprising same

Disclosed herein are a fluid sand falling type circulating fluidized bed boiler with a plurality of risers for preventing erosion and corrosion of water tubes and increasing combustion efficiency, and a method of operating the same. The fluid sand falling type circulating fluidized bed boiler with a plurality of risers includes a boiler section into which fuel and oxidizer are injected, a riser section connected to the boiler section so that the fuel and fluid sand supplied from the boiler section are introduced from the bottom of the riser section and flow up, and a relay section provided on the boiler section to supply the fluid sand having passed through the riser section to the boiler section, wherein the fuel is injected from the top of the boiler section and burned while flowing down therein.

Fluid sand falling type circulating fluidized bed boiler with a plurality of risers and method of operating the same

Disclosed herein are an apparatus and method for gas leakage measurement in a high pressure reactor. In particular, the present invention relates to an apparatus for gas leakage measurement in a high pressure reactor including: a gas inlet; a first valve equipped to one side of the gas inlet; a flowmeter; a pressure gauge measuring an internal pressure of the reactor; a gas outlet; and a second valve, wherein if in internal pressure reaches a preset pressure by closing the second valve and injecting a gas to the reactor through the flowmeter in the state of opening the first valve, the gas leakage status in the reactor is measured through pressure changes in the pressure gauge after closing the first valve.

Apparatus and method for gas leakage measurement in a high pressure reactor

Disclosed are an apparatus and a method for measuring the height of a solid bed in a high-temperature and high-pressure fluidized bed system, and a fluidized bed system having the solid bed height measuring apparatus. The solid bed height measuring apparatus includes a lower pressure probe mounted at an upper side as high as a first height from a gas distributor of a fluidized bed reactor to measure pressure of the mounted location, and a middle pressure probe mounted at an upper side as high as a second height from the lower probe to measure pressure of the mounted location. An upper pressure probe is mounted at the top of the fluidized bed reactor to measure the inside pressure of the fluidized bed reactor. First and second differential pressure gauges are used for measuring differential pressures.

Apparatus and method for measuring height of solid bed in high-temperature and high-pressure fluidized bed system

The present invention relates to a CLC and operation method thereof equipped with a loop seal separator using magnetic oxygen carrier particles and a magnetic separator. And more particularly, the present invention relates to a loop seal separator using magnetic oxygen carrier particles and a magnetic separator, wherein the loop seal separator comprises a duct into which the ash and magnetic oxygen carrier particles, discharged from a reducer, flow; a magnetic separator to separate the ash from the magnetic oxygen carrier particles, flowing into the duct, by magnetic material; an ash discharge pipe to discharge the ash, separated by the magnetic separator; and an oxygen-carrier-particle discharge pipe to encourage the magnetic oxygen carrier particles, separated by the magnetic separator, to flow into an oxidizer.

Chemical looping combustor using magnetic oxygen carrier particles and loop seal equipped with magnetic separator

Disclosed is provided to overcome problems of conventional methods using each of a solid discharge nozzle and a screw conveyer. According to one exemplary embodiment of the present invention, a fluidized bed system is provided to circulate solids using pressure and density difference. More particularly, a fluidized solid circulation system using pressure and density difference is characterized by comprising: a first fluidized bed reactor; a second fluidized bed reactor; a first cyclone; a second cyclone; a first pressure control valve; a second pressure control valve; a lower loop seal; an upper loop seal; and a control part, thereby circulating the solids between the first fluidized bed reactor and the second fluidized bed reactor.

Fluidized bed solid circulation system using pressure and density difference, fluidized bed reaction system having the same and solid circulation method

This invention relates to a device for separating carbon dioxide that includes a self-recycling loop, and to a method of separating carbon dioxide, which serve to effectively separate carbon dioxide from a combustion gas using a separation membrane provided with the self-recycling loop. This invention adopts a self-recycling loop in which the residue gas passing through a specific separation membrane is introduced into another separation membrane and in which a permeate gas passing through the specific separation membrane is introduced back into the specific separation membrane. Accordingly, the concentration of carbon dioxide in the feed gas of the specific separation membrane is increased, which increases the concentration of the permeate gas to thus improve the separation performance of the separation membrane, thereby separating high-purity carbon dioxide.

Apparatus and method for separating carbon dioxide with self recycle loop

The present invention relates to a fluidized bed system having a sparger capable of minimizing a blockage by solids and controlling method thereof. And, more specifically, the present invention relates to a fluidized bed system having a sparger capable of minimizing a blockage by solids comprising a fluidized bed reactor to store a solid layer with a certain height and to fluidize the solid layer by using fluidization gases; a sparger having a pipe shape submerged in the solid layer and having a plurality of gas-discharging holes to spray fluidization gases onto the solid layer; and a gas-supplying line having its one end contacting a gas-supplying source and the other end connected to the sparger, wherein fluidization gases are introduced through the gas-supplying line into the sparger by driving the gas-supplying source, the fluidization gases are sprayed through the gas-discharging holes onto the solid layer, the gas-supplying source is placed higher than the sparger and the height difference (H) between the gas-supplying source and the sparger is greater than the height of the solid layer.

Fluidized bed system having sparger capable of minimizing blockage by solids and controlling method thereof

An apparatus separating carbon dioxide from combustion gas using separation membranes, which includes: a first separation membrane in which combustion gas is injected into an inlet side of the first separation membrane; a second separation membrane in which residue gas of the first separation membrane is injected into an inlet side of the second separation membrane; and a third separation membrane in which permeate gas of the first separation membrane is injected into an inlet side of the third separation membrane, wherein at least a part of permeate gas of the third separation membrane is captured, and residue gas of the third separation membrane is injected into the inlet side of the first separation membrane or the second separation membrane. The present invention can be easily applied to an actual process by efficiently separating carbon dioxide using separation membranes.

Apparatus for separating CO2 from combustion gas using multi-stage membranes

A desulfurization system removes sulfur ingredients included in synthetic gas generated from gasification of coal in a high temperature dry state. The system includes a desulfurization reactor, a desulfurization cyclone, and first and second regeneration reactors branched with the desulfurization cyclone. A first oxidizing agent is injected to a first oxidizing agent inlet of the first regeneration reactor, and a second oxidizing agent is injected to a second oxidizing agent inlet of the second regeneration reactor. A controller operates one of the first and second regeneration reactors in a regeneration mode, controlling the other to operate in a desulfurization mode.

High temperature dry desulfurization system and method using multi regeneration reactor

The present disclosure relates to a metal-organic framework and a method for preparing the same. In accordance with the present disclosure, a metal-organic framework having large specific surface area can be prepared and the prepared porous material exhibits high carbon dioxide and carbon monoxide adsorption characteristics at room temperature.

Metal-organic frameworks and process of preparing the same

Disclosed is a dry carbon dioxide capturing device which can improve sorption efficiency by supplying sorbent for absorbing carbon dioxide or exhaust gas containing carbon dioxide to a recovery reactor in multistages at various heights. The dry carbon dioxide (CO) capturing device with multistage supply structure comprises a recovery reactorto recover COby contacting a solid sorbent with exhaust gas; a recovery cycloneconnected to the recovery reactorto discharge a gas while separating the CO-captured solid sorbent only; a regeneratorconnected to the recovery cycloneto receive the CO-captured solid sorbent and separate COcaptured in the solid sorbent; and a pre-treatment reactorconnected to the regeneratorfor cooling the solid sorbent free from CO, wherein at least one of the exhaust gas supply line and the sorbent supply line has two or more arranged according to the height of the recovery reactor

Dry carbon dioxide capturing device with multistage supply structure

Disclosed is a dry COcapturing device using multi sorbents so as to maintain the sorption rate for exhaust gas containing CO. The dry carbon dioxide (CO) capturing device comprises at least two dry carbon dioxide (CO) capturing parts comprising: a first and second recovery reactorsandto recover COby contacting a solid sorbent with exhaust gas; a first and second recovery cyclonesandconnected to the recovery reactors; a first and second regeneratorsandconnected to the recovery cyclones; and a first and second pre-treatment reactorsandconnected to the regenerators through sorbent supply lines. The first and second dry carbon dioxide (CO) capturing parts are connected to each other so as to feed an isolated gas, which is separated with the solid sorbent in the first recovery cycloneof the first dry COcapturing part, to the second dry COcapturing part through the exhaust gas supply line, and different solid sorbents are used in the first and second COcapturing parts.

Dry carbon dioxide capturing device using multi sorbents

Disclosed is a dry COcapturing device with improved energy efficiency, which utilizes a difference in temperature between a regeneration operation of isolating COfrom an sorbent containing COabsorbed therein and a pre-treatment operation of allowing HO to be adsorbed to CO. The dry carbon dioxide (CO) capturing device, includes a recovery reactor for recovering CO, a recovery cyclone for discharging a gas while separating the CO-captured solid sorbent only, a regenerator for receiving the CO-captured solid sorbent and separating COcaptured in the solid sorbent, and a pre-treatment reactor for cooling the solid sorbent free from CO, wherein a first heat exchanger is provided between the recovery cyclone and the regenerator to pass the CO-captured solid sorbent therethrough, and a second heat exchanger is provided between the pre-treatment reactor and the regenerator to pass the solid sorbent free from COtherethrough. The first and second heat exchanger include a first and second heat exchange jacket mounted thereon which are connected to each other in a closed loop state.

Dry carbon dioxide capturing device with improved energy efficiency

An apparatus for drying particles in a fluidized state includes a particle input segment into which wet particles are input, a drying segment having a multi-perforated plate dividing an inner space of the drying segment into an upper section and a lower section, a plurality of upper partition plates partitioning the upper section and positioned above the multi-perforated plate, a plurality of lower partition plates in the lower section respectively corresponding to the plurality of upper partition plates, a plurality of pairs of channel plates in the lower section that pass through the multi-perforated plate such that each pair of the plurality of pairs of channel plates are respectively arranged on opposite sides of respective ones of the plurality of upper partition plates and on opposite sides of respective ones of the plurality of lower partition plates; and a heated-air flow supply segment for supplying hot gas to the drying segment.

Fluidized bed drying apparatus

Growing community of inventors

Daejeon, South Korea

Young Cheol Park