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公开(公告)号：KR1020120129246A
公开(公告)日：2012-11-28
申请号：KR1020110047385
申请日：2011-05-19
Applicant: 한국과학기술연구원
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 translation: 目的：提供用于分解硫酸的垂直一体化的碳化硅反应器，使用该硫酸的分解硫酸的装置以及使用其分解硫酸的方法以承受高温和高压并提高对酸的耐腐蚀性。 构成：垂直整合的碳化硅反应器包括基于碳化硅的钟形上管，基于碳化硅的钟形下管，基于碳化硅的中心连接部（24）和不锈钢基紧固件 部分（25）。 中心连接部分连接上管和下管。 紧固部件包括铝衬垫。 中心连接部分包括硫酸入口，硫酸分解气体出口，供应路径，排放路径和一个或多个气体上升流动路径。 硫酸入口连接到供应路径。 硫酸分解气体出口连接到排放路径。
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公开(公告)号：KR100766701B1
公开(公告)日：2007-10-15
申请号：KR1020060120791
申请日：2006-12-01
Applicant: 한국과학기술연구원
CPC classification number: H01M14/005 , C01B3/042 , C25B1/003 , H01M2300/0002 , Y02E60/324 , Y02E60/364 , Y02E60/368 , Y02P20/135
Abstract: A system which allows an aqueous electrolyte solution of a photoelectrode to prevent deterioration of photoactivity, and further more enables various types of photoelectric cells to be applied to a photoelectrochemical system by installing photoelectric cells separately from the aqueous electrolyte solution is provided. A system for the production of hydrogen through water electrolysis by light irradiation has a structure in which oxidation and reduction catalytic electrodes(2,3) and an ion membrane(4) between the oxidation and reduction catalytic electrodes are dipped into an aqueous electrolyte solution(5), and photoelectric cells(1) are electrically connected to the oxidation and reduction catalytic electrodes outside the aqueous electrolyte solution. The photoelectric cells are silicon semiconductor-based solar cells, dye-sensitized solar cells, chalcogen compound-based solar cells, oxide thin film-based solar cells, organic semiconductor-based solar cells, or combinations thereof.
Abstract translation: 提供一种允许光电极的电解质水溶液防止光活性降低的系统，并且还提供了通过与电解质水溶液分开安装光电元件而将各种类型的光电池应用于光电化学系统的系统。 通过光照射通过水电解生产氢的系统具有将氧化还原催化剂电极（2,3）和氧化还原催化电极之间的离子膜（4）浸入电解质水溶液（ 5），光电池（1）与电解质水溶液外的氧化还原催化剂电极电连接。 光电池是基于硅半导体的太阳能电池，染料敏化太阳能电池，基于硫属化合物的太阳能电池，基于氧化物薄膜的太阳能电池，基于有机半导体的太阳能电池或其组合。
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公开(公告)号：KR100599882B1
公开(公告)日：2006-07-13
申请号：KR1020040041841
申请日：2004-06-08
Applicant: 한국과학기술연구원
CPC classification number: B01D53/8615
Abstract: 본 발명은 황화수소와 이산화황을 동시에 처리할 수 있는 고효율 탈황 방법에 관한 것으로, 본 발명의 탈황 방법은 반응가스 중에 함유된 이산화황을 1차적인 산화제로 이용하여 황화수소와 연속 반응시켜 이산화황과 대부분의 황화수소를 제거한 다음 나머지의 황화수소를 촉매 존재하에 산화제 가스에 의해 산화처리함으로써, 간단한 공정으로도, 특히 클라우스(Claus) 공정에서 배출된 3-5％의 황함유 테일(tail) 가스를 99％ 이상의 고효율로 처리할 수 있다.
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公开(公告)号：KR1020050028932A
公开(公告)日：2005-03-24
申请号：KR1020030064296
申请日：2003-09-17
Applicant: 한국과학기술연구원
IPC: C07C41/01
CPC classification number: B01J23/002 , B01J23/06 , B01J23/34 , B01J23/755 , B01J23/80 , B01J37/03 , B01J2523/00 , C07C41/01 , Y02P20/146 , B01J2523/27 , B01J2523/31 , B01J2523/72 , B01J2523/847 , C07C43/043
Abstract: Provided is a method for preparing dimethyl ether from synthesis gas to improve remarkably production yield and to reduce the amount of carbon dioxide discharged. The method comprises the step of preparing dimethyl ether from a synthesis gas in the presence of an acid catalyst and a methanol synthesis catalyst, wherein the carbon dioxide generated in the synthesis process of dimethyl ether is converted into carbon monoxide with the surplus hydrogen circulated in a reaction system in the presence of a catalyst for reverse water gas shift reaction and the converted one is recirculated into the synthesis process of dimethyl ether. Preferably the reverse water gas shift reaction is carried out at a temperature of 400-1,200 deg.C and at a pressure of 1-100 atm in the presence of a catalyst. Preferably the catalyst is the ZnO supported or coprecipitated in at least one oxide selected from Cr2O3, Al2O3, ZrO3, MgO, MnO and SiO2, and the content of ZnO is 10-90 wt% based on the total catalyst.
Abstract translation: 提供从合成气中制备二甲醚的方法，以提高产量，并且减少二氧化碳的排出量。 该方法包括在酸催化剂和甲醇合成催化剂存在下由合成气制备二甲醚的步骤，其中在二甲醚合成过程中产生的二氧化碳转化为一氧化碳，剩余氢气在 在反向水煤气变换反应催化剂存在下反应，并将转化的催化剂再循环到二甲醚的合成过程中。 优选地，反相水煤气变换反应在400-1200℃的温度下和在催化剂存在下在1-100atm的压力下进行。 优选地，催化剂是在选自Cr 2 O 3，Al 2 O 3，ZrO 3，MgO，MnO和SiO 2中的至少一种氧化物中负载或共沉淀的ZnO，并且基于总催化剂，ZnO的含量为10-90重量％。
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公开(公告)号：KR100322617B1
公开(公告)日：2002-03-18
申请号：KR1020000050275
申请日：2000-08-29
Applicant: 한국과학기술연구원
IPC: C07C47/02
Abstract: 본 발명은 촉매로서의 로듐 성분 및 조촉매로서의 염을 포함하는 로듐 촉매 시스템의 존재하에 올레핀을 하이드로포밀화, 카보알콕시화 또는 카르복실화하여 알데히드, 알킬에스터 또는 카복실산을 제조하거나, 이산화탄소를 수소화하여 포름산, 메틸포르메이트, 메탄올 및 에탄올 등을 제조하는 방법에 관한 것으로서, 로듐 촉매에 염 조촉매를 함께 사용하는 본 발명의 촉매시스템을 사용하면 상기 반응들을 높은 반응성, 선택성 및 촉매 안정성으로 수행할 수 있다
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Patent Agency Ranking
公开(公告)号：KR1020000077499A
公开(公告)日：2000-12-26
申请号：KR1020000050275
申请日：2000-08-29
Applicant: 한국과학기술연구원
IPC: C07C47/02
Abstract: PURPOSE: A method for carboalkoxylating and carboxylating an olefin by using a rhodium catalytic system is provided which has high reactivity, selectivity and catalytic stability. CONSTITUTION: An alkyl ester or carboxylic acid are prepared by carboalkoxylating and carboxylating an olefin in the existence of a rhodium catalytic system comprising rhodium as a catalyst and salt as a co-catalyst. The salt contains an anion selected from the group consisting of PO4-, I-, Br-, Cl-, NO3-, CH3COO-, NCO-, CN-, CNO-, SCN-, CO3- and SO4- and a cation selected from the group consisting of NR1R2R3(R1, R2 and R3 are H or C1-15 alkyl), PPN+(PhP=N=PPh)+, alkaline metals, alkaline earth metals, transition metals, Al, Ga, Sn, Pb and In.
Abstract translation: 目的：提供一种通过使用铑催化体系对烯烃进行烷氧基化和羧化的方法，其具有高反应性，选择性和催化稳定性。 构成：通过在包含铑作为催化剂的铑催化体系和作为助催化剂的盐的存在下，通过使烯烃进行烷氧羰基化和羧化来制备烷基酯或羧酸。 该盐含有选自PO4-，I-，Br-，Cl-，NO3-，CH3COO-，NCO-，CN-，CNO-，SCN-，CO3-和SO4-的阴离子和选择的阳离子 由NR1R2R3（R1，R2和R3为H或C1-15烷基），PPN +（PhP = N = PPh）+，碱金属，碱土金属，过渡金属，Al，Ga，Sn，Pb和In 。
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公开(公告)号：KR1020000002118A
公开(公告)日：2000-01-15
申请号：KR1019980022698
申请日：1998-06-17
Applicant: 한국과학기술연구원
IPC: C07C47/02
Abstract: PURPOSE: The reactivity, selectivity and stability of rhodium catalyst in reaction of rhodium-based catalyst were improved by using salt as cocatalyst of rhodium. CONSTITUTION: The manufacturing method of aldehyde, alkylester or carboxylic acid by hydroformylation, carboalkoxylation or carboxylation of olefin and also formic acid, methyl formate, methanol, and ethanol by hydrogenation of carbon dioxide in the presence of rhodium catalyst system containing salt as cocatalyst was developed.
Abstract translation: 目的：通过使用盐作为铑助催化剂，改善了铑催化剂在铑基催化剂反应中的反应性，选择性和稳定性。 构成：开发了通过在含有盐作为助催化剂的铑催化剂体系存在下，通过二氧化碳的氢化，通过加氢甲酰化，烯烃和甲酸，甲酸甲酯，甲酸和乙醇的羰基化，羰基化或羧基化来制备醛，烷基酯或羧酸。 。
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公开(公告)号：KR1019960005512B1
公开(公告)日：1996-04-25
申请号：KR1019920020188
申请日：1992-10-30
Applicant: 한국과학기술연구원
IPC: C07C53/08
CPC classification number: Y02P20/584
Abstract: To produce methyl acetate, acetic acid, acetic anhydride in the same operation line, it is required to have five step : 1st step-methanol is changed to acetic acid and methyl acetate by gas phase CO carbonyl reaction under carbonyl catalyst and halide co-catalyst; 2nd step-from column bottom, acetic acid is seperated and recovered, low Bp.compound of co-catalyst and methyl acetate is seperated in column top section; 3rd step-seperated methyl acetate from 2nd step is distilled and unrecovered methyl acetate is sent to 2nd carbonyl reactor with co-catalyst; 4th step-by second carbonyl reaction, methyl acetate and co-catalyst from 3rd step is synthesized to acetic anhydride; 5th step - acetic anhydride is seperated from co-catalyst and seperated co-catalyst is recycled to 1st carbonyl reactor. Compared with a known process, this method is simple and increases productivity.
Abstract translation: 为了在相同的操作线上生产乙酸甲酯，乙酸，乙酸酐，需要有五个步骤：在羰基催化剂和卤化物助催化剂下，通过气相CO羰基反应将第一步甲醇变为乙酸和乙酸甲酯 ; 从塔底第二步，分离回收乙酸，在塔顶部分离出低沸点的助催化剂和乙酸甲酯。 蒸馏第二步骤的第三步分离的乙酸甲酯，并将未回收的乙酸甲酯送入具有助催化剂的第二羰基反应器; 第四步第二次羰基反应，将乙酸甲酯和第三步助催化剂合成为乙酸酐; 第五步 - 将乙酸酐与助催化剂分离，将分离的助催化剂再循环至第一羰基反应器。 与已知的方法相比，该方法简单，提高了生产效率。
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公开(公告)号：KR1019960003797B1
公开(公告)日：1996-03-22
申请号：KR1019920025281
申请日：1992-12-23
Applicant: 한국과학기술연구원
IPC: B01J31/20
CPC classification number: C07C51/54 , B01J21/18 , B01J23/58 , B01J23/8946 , B01J27/06 , B01J31/0231 , B01J31/1616 , B01J31/20 , B01J31/2404 , B01J31/40 , B01J2231/34 , B01J2531/822 , C07C51/12 , C07C67/36 , Y02P20/584 , C07C53/08 , C07C53/12 , C07C69/14
Abstract: Acetic acid is prepared by the reaction of gaseous methanol and carbon monoxide at the ratio of 1:0.1 - 1:100 mole, 97.3 kg/cm2(1,000 psi), 100-400 degree C in the presence of catalyst and halogen containing co-catalyst such as CH3I, CH3Br, CH3Cl, I2, Br2, Cl2, HI, HBr and HCl. 0.1-20 Wt. % of rhodium compound on the volume of inactive carrier is solved in aqueous or organic solvent. Obtained compound is carried with 1-1000 mole % of alkali metal, alkali earth metal or transition metal on the volume of rhodium, and calcinated at 100-150 degree C to give the carbonylation catalyst.
Abstract translation: 乙酸通过在催化剂存在下以1:0.1-1:100摩尔，97.3kg / cm 2（1,000psi），100-400℃的比例的气态甲醇和一氧化碳的反应制备， 催化剂如CH3I，CH3Br，CH3Cl，I2，Br2，Cl2，HI，HBr和HCl。 0.1-20 Wt ％的铑化合物对无活性载体的体积溶解在水溶液或有机溶剂中。 得到的化合物以1-1000摩尔％的碱金属，碱土金属或过渡金属在铑体积上进行，并在100-150℃下煅烧，得到羰基化催化剂。
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