Abstract: The preset invention relates to a solid oxide fuel cell stack capable of producing electricity, in which unit cell modules are connected in series and in parallel, and to a manufacturing method thereof. The solid oxide fuel cell stack is manufactured by: making a unit cell module comprising at least one unit cell formed on the outer surfaces of a flat tubular support, a first electrical interconnector formed on the front end of the support and at least a portion of the outer surfaces so as to be connected to a first electrode of the unit cell, and a second electrical interconnector formed on the rear end of the support and at least a portion of the outer surfaces so as to be connected to a second electrode of the unit cell; and stacking the unit cell modules such that the electrical interconnectors come into contact with each other.

Abstract: The present invention relates to a stack protection method in case of emergency shut down or black out in a solid oxide fuel cell system and, more particularly, to a system and a method for, if supply of fuel gas and water to an anode channel of a stack is discontinued due to emergency shut down or black out, etc. in a solid oxide fuel cell system, preventing an anode from being contaminated by oxygen in the air and preventing re-oxidation of an anode material from occurring and cracks from forming on the stack due to the contamination. A fuel cell according to the present invention is disposed in a hot box along with a fuel cell stack, and has an auxiliary vaporizer which vaporizes and supplies, to a stack anode, water supplied from a water reservoir tank by a water level difference.

Abstract: The invention relates to a stack for a solid oxide fuel cell and a manufacturing method thereof, and more specifically, to a stack for a high-capacity solid oxide fuel cell and a manufacturing method thereof, in which cell modules including a fiat-tubular reformer integrated with flat-tubular reactors are electrically connected to form a cell bundle.

Abstract: The present invention provides a large-scale solid oxide fuel cell stack and a method of manufacturing the stack. In the present invention, a segmented cell tube (103a, 103b) is formed in such a way that unit cells connected to each other are formed on a cylindrical or flat tubular porous support (101). A reformer tube (102) is configured such that reforming catalyst (3) is provided in a support (101). The cell tube and the reformer tube are disposed at positions spaced apart from each other such that an air passage is formed on the outer surface of the reformer tube. A cell module (105) is formed by arranging the tubes such that a fuel gas flow passage is formed between the tubes. The solid oxide fuel cell stack is formed by integrating cell modules with each other.

Abstract: The present invention relates to a stack for a solid oxide fuel cell and a manufacturing method thereof, and more specifically, to a stack for a high-capacity solid oxide fuel cell and a manufacturing method thereof, in which cell modules comprising a flat-tubular reformer integrated with flat-tubular reactors are electrically connected to form a cell bundle. In a cell module of the stack for the solid oxide fuel cell according to the invention, at least one flat-tubular reactor is stacked on a flat-tubular reformer, wherein the flat-tubular reformer is closed at one side and has formed therein at least one first channel extending to the outside; the flat-tubular reactor is closed at one side and has formed therein at least one second channel extending to the outside; reaction units and air channels are formed on the outside of the flat-tubular reactor; and the first channel and the second channel communicate with each other.

Abstract: The present invention provides a large-scale solid oxide fuel cell stack and a method of manufacturing the stack. In the present invention, a segmented cell tube (103a, 103b) is formed in such a way that unit cells connected to each other are formed on a cylindrical or flat tubular porous support (101). A reformer tube (102) is configured such that reforming catalyst (3) is provided in a support (101). The cell tube and the reformer tube are disposed at positions spaced apart from each other such that an air passage is formed on the outer surface of the reformer tube. A cell module (105) is formed by arranging the tubes such that a fuel gas flow passage is formed between the tubes. The solid oxide fuel cell stack is formed by integrating cell modules with each other.

Abstract: The preset invention relates to a solid oxide fuel cell stack capable of producing electricity, in which unit cell modules are connected in series and in parallel, and to a manufacturing method thereof. The solid oxide fuel cell stack is manufactured by: making a unit cell module comprising at least one unit cell formed on the outer surfaces of a flat tubular support, a first electrical interconnector formed on the front end of the support and at least a portion of the outer surfaces so as to be connected to a first electrode of the unit cell, and a second electrical interconnector formed on the rear end of the support and at least a portion of the outer surfaces so as to be connected to a second electrode of the unit cell; and stacking the unit cell modules such that the electrical interconnectors come into contact with each other.

Abstract: The present invention relates to a catalyst for removing NOx contained in exhaust gas, more specifically to a catalyst for removing NOx using metal titanate as a support. The catalyst for removing NOx according to the present invention allows metal titanate to act as a support as well as an adsorption and storage agent (hereafter an adsorption/storage agent) of NOx in lean-burn conditions. Supported noble metals or transition metal components provide a catalyst function which helps adsorption/storage by oxidizing NOx into NO2 in lean-burn conditions and participates in the reaction of reducing the adsorbed and stored NO2 into N2 in fuel-rich conditions. The catalyst according to the present invention has twice the NOx storage amount of conventional catalysts, for example Ba, and enables effective removal even in operational conditions of a wider range than 150˜700° C.

Abstract: A solid oxide fuel cell module of the invention, a fuel cell using the same and a manufacturing method thereof are provided. The solid oxide fuel cell module is easily manufacturable, economical, easily sealable and high in current density. A support is made of a first catalytic material. A first fluid flow part has flow passages formed inside the support. A second fluid flow part has a plurality of pillars protruded from an outer surface of the support and flow passages formed between the pillars. An electrolyte layer is coated on the outer surface of the support excluding top surfaces of the pillars. A coating layer is made of a second catalytic material and formed on a top surface of the electrolyte layer excluding the pillars. Also, a current collecting layer is coated on the top surfaces of the pillars.

Abstract: Disclosed herein is an oxidation catalyst for use in removing fine soot particulates from exhaust gases of diesel engines, incinerators, boilers or other combustion devices, and to a method of removing fine soot particulates using the oxidation catalyst. The oxidation catalyst of the current invention functions to effectively remove fine soot particulates at a low temperature, and also, has thermal durability, and thus, the activity of the catalyst may be stably maintained even under thermal stress for a long time period. Further, the catalyst prevents poisoning due to a sulfur compound present in exhaust gases, and can maintain stable activity.

Abstract: Disclosed herein is an oxidation catalyst for use in removing fine soot particulates from exhaust gases of diesel engines, incinerators, boilers or other combustion devices, and to a method of removing fine soot particulates using the oxidation catalyst. The oxidation catalyst of the current invention functions to effectively remove fine soot particulates at a low temperature, and also, has thermal durability, and thus, the activity of the catalyst may be stably maintained even under thermal stress for a long time period. Further, the catalyst prevents poisoning due to a sulfur compound present in exhaust gases, and can maintain stable activity.

Abstract: Disclosed is a method of coating a porous carrier layer of metal-metal oxide and depositing an active catalyst component on metal substrates, and a monolith module useful as a catalytic reactor with low pressure drop prepared using the metal substrate having the deposited catalyst. By forming the porous carrier particle layer on the metal substrate and depositing the catalyst particles thereon, the catalyst particles are drastically increased in deposition strength and impact durability. Also, the disclosed monolith catalyst module is used for a long time while the catalyst is not detached under high mechanical or thermal impact and high conversion efficiency thereof is maintained at a desired level, due to securely deposited catalyst particles.

Abstract: Disclosed is a method of coating a porous carrier layer of metal-metal oxide and depositing an active catalyst component on metal substrates, and a monolith module useful as a catalytic reactor with low pressure drop prepared using the metal substrate having the deposited catalyst. By forming the porous carrier particle layer on the metal substrate and depositing the catalyst particles thereon, the catalyst particles are drastically increased in deposition strength and impact durability. Also, the disclosed monolith catalyst module is used for a long time while the catalyst is not detached under high mechanical or thermal impact and high conversion efficiency thereof is maintained at a desired level, due to securely deposited catalyst particles.

Abstract: A catalyst for recovering elemental sulfur by the selective oxidation of hydrogen sulfide is represented by the following chemical formula: VaTibXcOf wherein, a is such a mole number that vanadium amounts to 5-40% by weight based on the total weight of the catalyst; b is such a mole number that titanium amounts to 5-40% by weight based on the total weight of the catalyst; X is an element selected from the group consisting of Fe, Mn, Co, Ni, Sb and Bi; c is such a mole number that X amounts to 15% by weight or less based on the total weight of the catalyst; and f is such a mole number that oxygen is contained to the final 100% by weight. The catalyst can recover elemental sulfur at high rates for a long period of time without being deteriorated in activity. The high catalytic activity is maintained even when excess water is present in the reaction gas.