Abstract:
본 발명은 금속 촉매와 산 촉매를 통합한 이작용기성 촉매를 구아이아콜을 포함하는 바이오매스에 가하는 단계를 포함하는 바이오연료의 제조방법을 제공한다. 본 발명의 제조방법은 리그닌 또는 바이오매스의 분해 및 전환에 의한 석유대체연료 개발에 적용될 수 있어서, 비석유기반 바이오연료의 제조방법을 제공하는 장점이 있다.
Abstract:
PURPOSE: Multipurpose oxygen manufacturing system and method using PSA(pressure swing adsorption) process are provided to maximize desorption performance using an internal heat exchanger which uses adsorption characteristics of an adsorbent to the highest degree, and maximize a purity of oxygen using reverse pressure equalization in separating oxygen from air. CONSTITUTION: The multipurpose oxygen manufacturing system using PSA(pressure swing adsorption) process comprises two adsorption columns(1,2) a part of which are filled with a first adsorbent, and in which a main adsorbent is filled on the upper part of the first adsorbent; two heat exchangers(10) which are arranged between an air compressor(4) and a radiator(7) at the upper part of the outlet side of the adsorption columns(1,2), and which increases desorption efficiency by increasing a temperature of cleaning gas using a temperature of the air compressed by the compressor(4), thereby maintaining a high temperature, and increases adsorption efficiency by lowering a temperature of a raw gas, thereby maintaining a low temperature during adsorption; an oxygen storage tank(3) which is separated from the adsorption system by a check valve(22) so as to always obtain a uniform flow rate of oxygen; pressure equalized gas flow tubes(35) for pressure equalization comprising solenoid valves(15,16) which are connected from an end part of the outlet of an adsorption column to an arbitrary middle point of the lower part of the other adsorption column; a plural flow tube means(32,33) which connect two adsorption columns(1,2) and the oxygen storage tank(3) arranged between the adsorption columns(1,2) with the heat exchangers(10) in the shortest length; a cleaning flow control valve(20) capable of sending oxygen having a high concentration by controlling a flow rate of the cleaning gas, and an oxygen flow rate control valve(21) capable of controlling a purity of oxygen by varying an exhaust amount of oxygen; and a plurality of check valves(13,14,22) which are installed between the outlet sides of the adsorption columns(1,2) and the inlet side of the oxygen storage tank(3).
Abstract:
The present invention relates to a Cu/Zn/Al catalyst comprising nanoparticles having a high surface area and a method for producing the catalyst and, more particularly, to a Cu/Zn/Al catalyst comprising nanoparticles having a high surface area and a method for producing the catalyst, wherein the method comprises: a metal precursor solution production step of dissolving copper, zinc and aluminum precursors in an organic solvent to produce a metal precursor solution; a base aqueous solution production step of producing a base aqueous solution; a metal nanoparticle precipitation step of adding the produced base aqueous solution in the produced metal precursor solution, mixing and stirring the base aqueous solution and the metal precursor solution to precipitate metal nanoparticles; and a catalyst production step of collecting, cleaning, drying the precipitated metal nanoparticles, and plasticizing the precipitated metal nanoparticles to obtain a Cu/Zn/Al catalyst. According to the method of the present invention, a Cu/Zn/Al catalyst with superior vitality can be obtained.
Abstract:
PURPOSE: To reduce catalysts by using non-thermal plasma instead of conventional thermal reduction method, thereby not requiring an additional heating device and reducing reduction time. CONSTITUTION: The method comprises a step of contacting non-thermal plasma state catalysts containing metal compounds with a gas containing hydrogen, where the non-thermal plasma is generated by a dielectric barrier discharge.
Abstract:
본 발명은 압력순환식 흡착공정을 이용한 산소 제조장치 및 제조방법에 관한 것으로서, 공기로부터 산소를 분리하는데 있어서 흡착제의 흡착특성을 최대한 이용한 내부 열교환기를 이용하여 탈착성능을 극대화시키고, 역방향 압력균등화를 이용하여 산소의 순도를 최대화시키는 것을 특징으로 한다. 산소의 순도 조절이 극히 용이하며 원하는 농도의 산소를 얻을 수 있도록 개선된 본 발명의 산소 제조장치 및 제조방법을 이용하면 산소농도의 조절이 용이하고 고순도의 산소를 비롯하여 저순도의 산소도 필요에 맞게 이용할 수 있다.
Abstract:
PURPOSE: A dyeing wastewater treatment equipment using plasma and ozone is provided, which can decolorize by more than 90 % by only passing unit reactor. The decolorization is made by an effective contact of wastewater with plasma and ozone together. CONSTITUTION: The system comprises the parts of a cylindrical reactor(1) consisting of five unit reactors(1a) being vertically connected and communicated through connecting pipe(2); unit reactor(1a) that has an interior electrode(11), a pin electrode supported by insulating supporter, and exterior electrode(12), a plate electrode surrounding the reactor(1a); a defoaming device(5) and outlet line(24); packing material and inlet line(22).
Abstract:
본 발명은 루테늄, 백금 또는 그의 혼합물의 염화물의 수용액을 담체의 세공에 주입하여 균일하게 스며들게 한 후, NaBH 4 수용액을 주입하여 환원시키고, 건조시킴으로써 제조되는, 2-프로판올의 기상 탈수소화에 이용하기 위한 촉매를 제공한다. 또한, 본 발명은 상기 2-프로판올의 기상 탈수소화 반응 촉매를 반응 촉매로서 사용하고 모든 반응물을 기화시켜 반응기에 도입하는 화학 반응 열펌프를 위한 2-프로판올의 기상 탈수소화 방법을 제공한다.