Korea Institute of Energy Research

Jae-hyeon Park

Sung-ho Jo

Chang-keun Yi

Ho-jung Ryu

Seung-yong Lee

Gyoung-tae Jin

Do-won Shun

Dong-ho Lee

Dal-hee Bae

Jong-Ho Moon

Young Cheol Park

Youngcheol Park

Ji-bong Joo

Hyo Jin Lee

Jeom In Baek

Dal-Hee Bae

Young-cheol Park

Jong-ho Moon

Do Yeon Lee

Gyong-Tae Jin

Doyeon Lee

Do-Won Sun

Do-Wen Sun

Seoung-Yong Lee

Keun-hee Han

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

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

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

A system for preventing a catalyst from overheating is provided. The system includes: a first reactor filled with a catalyst at least in part and configured to receive reaction gas and produce product gas; and a second reactor configured to cool a catalyst discharged from the first reactor. The catalyst is circulated between the first reactor and the second reactor by injecting the catalyst cooled in the second reactor into the first rector.

System and method for preventing catalyst from overheating

A chemical looping combustion apparatus for solid fuels using different oxygen carriers is provided. The chemical looping combustion apparatus includes: a solid fuel chemical looping combustor configured to receive solid fuels and to produce carbon dioxide and steam by combustion of the solid fuels; a gaseous fuel chemical looping combustor configured to receive gaseous fuels and to produce carbon dioxide and steam by combustion of the gaseous fuels; and a devolatilization reactor configured to produce solids and gases by devolatilizing the solid fuels, and the solid fuels received by the solid fuel chemical looping combustor and the gaseous fuels received by the gaseous fuel chemical looping combustor are the solids and the gases produced by the devolatilization reactor, respectively. Accordingly, a reaction rate and an amount of oxygen transfer can increase, and necessity for low-priced oxygen carriers and a make-up cost of low-priced oxygen carriers can be reduced.

Chemical looping combustion method and apparatus for solid fuels using different oxygen carriers

A fluidized bed reactor is provided. The fluidized bed reactor includes a screw conveyor configured to penetrate through an upper portion of the fluidized bed reactor and to discharge solid particles to an outside from the fluidized bed reactor. The screw conveyor is configured to have an upper end protrude from the upper portion of the fluidized bed reactor and a lower end located at a height equal to or higher than a height of a distributor of the fluidized bed reactor.

Fluidized bed reactor having screw conveyor and fluidized bed solid circulation system using the same

Disclosed is a dry carbon dioxide capture apparatus with improved carbon dioxide capture efficiency through preventing gas backflows into vertical transport lines. The dry CO2 capture apparatus includes a capture reactor having a capture buffer chamber on the bottom side, a capture diffusion plate on top of the capture buffer chamber, and adsorbent particles in a space above the capture diffusion plate; a first separator connected to the capture reactor through a vertical transport line; a regenerator having a regeneration buffer chamber on the bottom side, a regenerating diffusion plate on top of the regeneration buffer chamber, and adsorbent particles in a space above the regenerating diffusion plate; a second separator connected to the regenerator through a gas separation line; and a second particle transfer line connected to the regenerator at one end and connected to the capture reactor at the other end.

Dry carbon dioxide capture apparatus

A regeneration reactor of a COcapture system is disclosed. According to an embodiment of the present invention, in the COcapture system comprising a capture reactor selectively adsorbing COby bringing a CO-containing gas supplied from the outside into contact with a solid adsorbent, and a regeneration reactor separating the adsorbed COfrom the solid adsorbent adsorbed with the CO, the regeneration reactor includes a chamber having an inverted truncated cone shape being widened toward an upper part and narrowed toward a lower part, such that a pressure in the regeneration reactor is constantly maintained through the whole part and accordingly, a flow velocity in the chamber can be constantly maintained.

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Disclosed is a CO capturing device for improving CO removal efficiency and use of a dry solid absorbent. The device comprises a CO recovery reactorto permit CO containing gas externally supplied to be in contact with a dry solid absorbent to capture CO; a recovery cycloneconnected to the recovery reactorto exhaust CO-free gas while separating a solid portion containing CO; a fluidized bed type regeneration reactorwhich receives the solid portion through a solid feeding pipeconnected to the recovery cycloneand divides the solid portion into CO and the other part containing the dry solid absorbent by using a fluidizing gas fed through a fluidizing gas supply pipe; a regeneration cycloneto exhaust the separated CO outside in order to use CO in the regeneration reactor; and a water vapor pretreatment deviceconnected to the regeneration reactorto absorb H O in the dry solid absorbent and feedback the H O containing absorbent to the recovery reactor

Growing community of inventors

Daejeon, South Korea

Jae-hyeon Park