Abstract:
PURPOSE: An RLC(Resistance Inductance Capacitance) circuit using a micro carbon structure is provided to form a micro circuit with a new concept having a mixed RLC by forming a micro carbon structure including a carbon nano tube on a surface of an inorganic substance carrier and arranging the micro carbon structure. CONSTITUTION: Ni is soaked into gamma alumina. The mixture of Ni and gamma alumina is calcined under temperature of 900 degrees centigrade. A gamma alumina bead(1/8inx1/8in) is added into a reactor formed with quartz. Hydrogen and methanol of a ratio of 1 to 1 are added into the reactor. The reactor is heated by a heater. A vapor deposition process of carbon is performed under temperature of 1000 degrees centigrade. An electrical characteristic is measured after the vapor deposition process of carbon is performed during 6 hours. One bead of alumina is acted as an inductive material by applying a single pulse.
Abstract:
본 발명은 열에 안정하고 산화반응 활성이 높은 연소 촉매에 관한 것으로, 고체 산소이온전도체 또는 헥사알루미네이트에 Fe, Co, Ni, 란탄족 금속, Mn, Ti 또는 Hf, 또는 이의 산화물이 담지된 본 발명의 촉매는 산화 반응을 수행할 경우 탄화수소 연료의 무화염연소를 상대적으로 낮은 온도에서 효율적으로 수행할 수 있게 하며, 또한 탄화수소에서 합성 가스 및 수소를 생성하는 반응을 획기적으로 개선할 수 있다.
Abstract:
본 발명은 열에 안정하고 산화반응 활성이 높은 연소 촉매에 관한 것으로, 고체 산소이온전도체 또는 헥사알루미네이트에 Fe, Co, Ni, 란탄족 금속, Mn, Ti 또는 Hf, 또는 이의 산화물이 담지된 본 발명의 촉매는 산화 반응을 수행할 경우 탄화수소 연료의 무화염연소를 상대적으로 낮은 온도에서 효율적으로 수행할 수 있게 하며, 또한 탄화수소에서 합성 가스 및 수소를 생성하는 반응을 획기적으로 개선할 수 있다.
Abstract:
본 발명은 유독성 오염 물질을 함유한 폐수를 화학적 산화 환원 반응에 의해 처리하기 위한 촉매 및 그를 사용한 폐수 처리 방법에 관한 것이다. 본 발명에 따른 촉매는 산화물 담체에 전이 금속, 알칼리 금속 또는 알칼리토 금속을 담지시킨 것으로서, 이 촉매를 사용하여 상온, 상압에서 폐수 처리를 행할 수 있다.
Abstract:
This new catalyst for hydrogenation of ester has good catalytic activity, selectivity and stability. The catalyst is composed of CuO 0.1-80wt.%, ZnO 0.1-60wt.%, CoO 0.1-20wt.% and YO 0-5wt.%. Y is such as W, Pd, Pt, Ru, Cs, Mg, Ca, or Ba. Alcohol is prepared by reduction the catalyst at 350deg.C for 3hrs and hydrogenation carboxylic ester, aliphatic ester, cyclic ester, hydrocarboxylic ester or aldehyde with the catalyst at 150-280deg.C and under the pressure of 21.4-273.2atm.
Abstract:
PURPOSE: A vertically integrated silicon carbide reactor for decomposing sulfuric acid, an apparatus for decomposing sulfuric acid using the same, and a method for decomposing sulfuric acid using the same are provided to bear high temperatures and pressures and to improve corrosion resistance to acid. CONSTITUTION: A vertically integrated silicon carbide reactor includes a silicon carbide-based bell-shaped upper tube, a silicon carbide-based bell-shaped lower tube, a silicon carbide-based center connecting part(24), and a stainless steel-based fastening part(25). The center connecting part connects the upper tube and the lower tube. The fastening part includes an aluminum liner. The center connecting part includes a sulfuric acid inlet, a sulfuric acid decomposed gas outlet, a supplying path, a discharging path, and one or more gas ascending flow path. The sulfuric acid inlet is connected to the supplying path. The sulfuric acid decomposed gas outlet is connected to the discharging path.
Abstract:
본 발명은 CIGS(구리인듐갈륨셀렌)계 또는 CIS(구리인듐셀렌)계 태양전지로 통칭되는, IB족, IIIA족 및 VIA족의 원소들을 포함하는 물질을 빛 흡수층으로 이용하는 박막 태양전지용 CIGS 또는 CIS계 분말 또는 박막 및 이의 제조방법에 관한 것이다. 본 발명에서는 CIS 또는 CIGS계 박막을 기존의 제조 방법에 사용되던 진공 증착 방법이 아닌 페이스트 코팅법을 이용하여 제조함으로써, 태양전지 생산시의 원료의 손실을 줄이고 대량 생산 및 대면적화를 가능하게 한다. 본 발명에 따르면, 특히 유독 기체를 이용한 셀렌화(selenization) 공정 대신에 대기 방출 위험이 적은 Se 전구체를 이용하기 때문에 보다 안전한 저가의 박막 제조가 가능하다. 박막 태양전지, CIGS, CIS, Cu(In,Ga)Se2, 칼코파이라이트, 페이스트
Abstract:
A method is provided to separate and recover pure SO2 only from a gas mixture generated from an IS(Iodine-Sulfur) cycle process even at a high temperature in a stable and succeeding manner through absorption and degassing processes using ionic liquid, and prevent loss of a solvent even in the repeated absorption and degassing processes by maintaining low vapor pressure and high temperature stability as compared with a conventional amine-based absorbent. As a method for separating and recovering sulfur dioxide from a gas mixture containing 40 to 80 wt.% of sulfur dioxide(SO2) and 20 to 60 wt.% of oxygen exhausted from an IS(Iodine-Sulfur) cycle process consisting of a decomposition reaction of sulfuric acid, a decomposition reaction of sulfur dioxide, and a decomposition reaction of iodic acid, a method for separating and recovering pure sulfur dioxide from the gas mixture in the IS cycle process using ionic liquid comprises the steps of: contacting the gas mixture with ionic liquid to allow the ionic liquid to absorb and separate sulfur dioxide(SO2) in the gas mixture in a temperature range of 20 to 50 deg.C; and degassing the sulfur dioxide that has been absorbed and separated from the gas mixture from the ionic liquid in a temperature range of 120 to 250 deg.C. The ionic liquid is ionically bonded compounds in which cations selected from imidazolium, pyrrolidinium, piperidinium, morpholinium and pyridinium are bonded with anions selected from hydrogen sulfate(HOSO3^-), methyl sulfate(CH3OSO3^-), ethyl sulfate(C2H6OSO3^-)methane sulfonate(CH3SO3^-), acetate(CH3COO^-), tetrafluoroborate(BF4^-), hexafluorophosphate(PF6^-), and chloride(Cl^-), or mixtures of the ionically bonded compounds. Further, the recovered sulfur dioxide has a recovery rate of 85 to 95% and purity of 98 to 99%.