Abstract:
본발명은대풍량의건조공기를얻는방법으로서에너지소비를최소화할 수있는회전식제습공정에사용될수 있는실리카겔쉬트, 이의제조방법, 및이를포함하는허니컴형제습소재에관한것으로서, 본발명에따른실리카겔쉬트는실리카겔및 세라믹섬유를포함한다. 본발명에따른실리카겔쉬트는종래의실리카겔흡습제의형태와완전히다른허니컴형태로성형하여회전식제습공정에적용할수 있으므로, 제습공정의에너지절약, 유지보수비의절감, 미세분진이포함되지않은양질의건조공기를얻을수 있는등 제습공정의효율성을극대화시킬수 있다. 또한, 본발명에따른허니컴형제습소재는상기실리카겔쉬트를성형하여제조할수 있으므로, 종래와는달리매우간단한공정으로제조할수 있다.
Abstract:
PURPOSE: An energy effective device for removing volatile organic compound and a method thereof are provided to prevent the generation of contamination. CONSTITUTION: A method for removing volatile organic compound comprises: a step for adsorbing volatile organic compounds supplied from an adsorption zone having an adsorbing device(120) into a rotary adsorption plate(110), a step for detaching the volatile organic compounds from the adsorption plate and recycling the volatile organic compounds, a step of cooling the adsorption plate, a step of burning the concentrated volatile organic compounds, and a heat-exchange step for heating the recycled air using heat. [Reference numerals] (AA) Cooling air; (BB) Volatile organic compound; (CC) Polluted air; (DD) Heat exchanged high temperature regenerated air; (EE) Waste heat air; (FF) Clean air; (GG) Rotary motor
Abstract:
PURPOSE: A thermal cracking resistant zeolite membrane and a method for manufacturing the same are provided to continuously maintain the superior separating performance of the membrane by stabilizing the zeolite membrane at operational temperatures. CONSTITUTION: Zeolite seed crystal is attached to a support. The support is hydrothermally treated to grow a zeolite membrane. The seed crystal is permeated to the surface and the inside of the support. A hydrothermal solution is introduced into a hydrothermal reactor. The support attached with the seed crystal is immersed in the reactor, and a hydrothermal reaction is implemented to grow the zeolite membrane to the surface and the inside of the support. The hydrothermal solution is obtained by dissolving aluminum-based materials, silica-based materials, and sodium hydroxide in water.
Abstract:
PURPOSE: A silica gel sheet, a method for preparing the same, and a honeycomb type dehumidifying element including the same are provided to save the energy of a dehumidifying process and to obtain dry air of high quality. CONSTITUTION: A silica gel sheet includes silica gel and ceramic fiber. The specific surface area of argon gas absorbing silica gel is between 10-2000m^2/g. The particle size of the silica gel is between 0.1 and 100um. The content of the silica gel in the silica gel sheet is between 5 and 60 weight%. The ceramic fiber includes one or more selected from SiO_2, SiO_2-Al_2O_3, and Al_2O_3. The length of the ceramic fiber is between 2 and 50mm. The silica gel, the ceramic fiber, and water are mixed to obtain slurry. A silica gel sheet is formed using the slurry. The formed sheet is compressed and dried. Two silica gel sheets are formed into a partially wave-formed body. The partially wave-formed body is shaped into a honeycomb form in order to obtain a honeycomb type dehumidifying element.
Abstract:
PURPOSE: A method for fabricating silicon carbide hollow fibers are provided to prepare silicon carbide hollow fibers using a sintering material capable of silicon carbide sintering at a low temperature compared with the case of spinning a conventional organosilazane polymer and performing heat treatment. CONSTITUTION: A method for fabricating silicon carbide hollow fibers comprises the steps of: (S210) preparing a composition including silicon carbide, sintering aids, polymers, dispersing agents and organic solvents; (S220) wet-spinning the composition using a spinneret; (S230) washing and drying the resultant to form high-polymer silicon carbide hollow fibers; and (S240) sintering polymer-silicon carbide hollow fibers to form silicon carbide hollow fibers.
Abstract:
본 발명은 셀룰로우스 섬유를 열처리하여 새로운 구조를 갖는 탄화물을 생성하는 것과 함께, 이를 지지체로 이용하여 나노촉매입자를 생성시킨 후 이 나노입자의 활성을 통해 탄소나노튜브를 합성하는 것에 관한 내용으로, 그 목적은 수소 분위기의 고온에서 셀룰로우스 섬유를 열처리하여 마이크로 채널 및 높은 표면적을 갖는 독특한 구조의 탄화물을 생성하는 방식과 함께, 이 지지체 위에 얇은 촉매층을 코팅하고, 이것으로부터 나노촉매입자를 형성시키고, 이 나노입자를 이용하여 탄소나노튜브를 합성하는 방법을 제공하고, 이를 통해 전극, 나노/바이오 필터, 가스 컨센트레이터, 가스센서용 소재 등에 적용 가능한 탄소-탄소나노튜브 구조체를 만드는데 있다. 본 발명의 구성은 셀룰로우스 섬유를 열처리하여 얻은 탄화물 위에 탄소나노튜브를 직접 합성하는 방법에 있어서, 셀룰로우스 섬유를 세척 건조하고, 반응장치에 넣은 이후, 반응장치의 온도를 500-1500℃의 범위에서 조절하면서 수소만을 분위기 가스로 이용 열처리하여 탄화물을 생산하는 단계와; 이후 생성된 탄화물 위에 나노촉매입자를 코팅하고, 이렇게 준비된 시료를 500-700℃의 온도 범위에서 제어되는 고온의 반응로에 넣고 탄소소스를 공급함으로써 탄소나노튜브를 직접 수직 성장시키는 단계로 이루어진 합성방법을 특징으로 하는 셀룰로우스 섬유의 열처리를 통한 탄소를 지지체로 이용한 탄화물-탄소나노튜브 구조체의 합성방법과 그 탄화물-탄소나노튜브 구조체를 이용한 탄화물-탄소나노튜브 필터를 그 기술적 사상의 특징으로 한다. 셀룰로우스 섬유, 탄소나노튜브, 나노촉매입자, 수소열처리, 셀룰로우스 탄화물-탄소나노튜브 필터
Abstract:
PURPOSE: A ceramic nitride red phosphor is provided to ensure high photonic efficiency suitable for blue and UV excitation light, to improve efficiency of a white diode using blue and ultraviolet light-based light emitting diode, and to obtain high color rendering. CONSTITUTION: A ceramic nitride red phosphor is represented by chemical formula 1: (Ba_(1-x)M_x)Re_ySi_8.2Al_3.7N_16 and is a nitride phosphor activated by rare earth materials. In chemical formula 1, M element is one or two or more kinds selected from Ca, Ba, Sr, Mg and Zn; a molar ratio is 0.01Δx Δ1.0 and 0.001Δ y Δ1.0; and Re is at least one element selected from rare earth materials or transition metal materials.