-
-
-
公开(公告)号：KR1019960007519A
公开(公告)日：1996-03-22
申请号：KR1019940020457
申请日：1994-08-19
Applicant: 한국과학기술연구원
IPC: C07C31/04
Abstract: 본 발명는 이산화탄소와 수소가스를 포함하는 혼합가스로부터 메탄올을 합성하는 방법에 있어서, 시프트 전환반응의 역반응을 이용하는 전처리 공정에 의해 혼합 가스중에 함유된 이산화탄소의 일부를 일산화탄소 가스로 전환시켜 메탄올 합성루프에 공급함으로써, 환경문제를 야기하는 이산화탄소를 원료로 사용하여 환경의 보전 및 부존자원의 절약을 꾀함과 동시에 보다 저렴한 제조비용으로 메탄올을 합성하는 방법에 관한 것이다.
-
公开(公告)号：KR1019960003794B1
公开(公告)日：1996-03-22
申请号：KR1019920021566
申请日：1992-11-17
Applicant: 한국과학기술연구원
IPC: B01J23/80
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 translation: 这种新型的氢化催化剂具有良好的催化活性，选择性和稳定性。 催化剂由CuO 0.1-80重量％，ZnO 0.1-60重量％，CoO 0.1-20重量％和YO 0-5重量％组成。 Y是W，Pd，Pt，Ru，Cs，Mg，Ca或Ba。 通过在150-280℃，压力为21.4-273.2atm的催化剂下，将催化剂在350℃下还原3小时，加氢羧酸酯，脂肪族酯，环酯，羟基羧酸酯或醛制备醇。
-
公开(公告)号：KR100371088B1
公开(公告)日：2003-02-06
申请号：KR1020000064061
申请日：2000-10-30
Applicant: 한국과학기술연구원
Abstract: PURPOSE: Provided is a catalyst for reverse-water-gas-shift reaction which functions long time stably under the reduction atmosphere of the Camere reaction of high temperature and high pressure, maximizing the conversion into CO2 and enhancing the yield of methanol consequently. CONSTITUTION: The catalyst is characterized in that ZnO is supported on two or more carriers selected from the group consisting of AlnOm(n,m=1-20), Cr2O3, ZrO2, MgO, Ga2O3, and MnO and thermal treated in the temperature range of 500 to 1000°C for 3-5 hours. ZnO is added to the catalyst in an amount of 50 to 90wt.% based on the total weight of the catalyst.
Abstract translation: 本发明提供一种反应水煤气变换反应用催化剂，该催化剂在高温高压下的喀拉瑞反应的还原气氛下长期稳定地发挥作用，从而使转化成CO2的量最大化，从而提高甲醇的收率。 构成：该催化剂的特征在于ZnO负载在选自AlnOm（n，m = 1-20），Cr2O3，ZrO2，MgO，Ga2O3和MnO中的两种或更多种载体上并且在温度范围 500至1000℃并保持3-5小时。 基于催化剂的总重量，ZnO加入到催化剂中的量为50至90重量％。
-
Patent Agency Ranking
公开(公告)号：KR1020000002477A
公开(公告)日：2000-01-15
申请号：KR1019980023258
申请日：1998-06-20
Applicant: 한국과학기술연구원
CPC classification number: B01J37/0009 , B01J21/04 , B01J21/08 , B01J21/10 , B01J21/12 , B01J23/06 , B01J23/755 , B01J29/084 , B01J29/40 , B01J37/06 , C07C41/01
Abstract: PURPOSE: A dimethyl ether production method is provided to produce the dimethyl ether in high carbon monoxide conversion rate, selection degree and receiving rate from syngas. CONSTITUTION: A modified solid-acid catalyzer production comprises: a process of the solid-acid catalyzer with the aqueous solution containing the alkali and the formaldehyde from 0.001 to 10N at the degree from 0 to 100°C for 10 to 20 minutes; herein, polystyrene-divinyl-benzene copolymer containing zeolite, silica/alumina, alumina, noncrystalline phosphoric sulfate sulfuric-acid is used as a solid-acid catalyzer.
Abstract translation: 目的：提供二甲醚生产方法，以高一氧化碳转化率，合成气的选择程度和接收率生产二甲醚。 构成：改性固体酸催化剂的制备包括：固含酸催化剂的方法，其中含有0.001至10N的碱和甲醛的水溶液，在0至100℃的温度下进行10至20分钟; 本文中使用含有沸石，二氧化硅/氧化铝，氧化铝，非结晶硫酸硫酸的聚苯乙烯 - 二乙烯基 - 苯共聚物作为固体酸催化剂。
-
-
公开(公告)号：KR1019960007736B1
公开(公告)日：1996-06-11
申请号：KR1019930014265
申请日：1993-07-27
Applicant: 한국과학기술연구원
IPC: C10K3/00
CPC classification number: C10K1/00 , C07C51/12 , C07C51/56 , C07C67/36 , C07C53/08 , C07C53/12 , C07C69/14
Abstract: The ferric carbonyl compound in raw gas is removed by (a) converting ferric carbonyl compound to ferric halogen compound through reaction of raw gas with halogen gas such as chlorine gas or bromine gas or iodin gas; (b) passing through packed tower with inactive adsorbent such as activated carbon, clay, alumina, sillica or sillica-alumina. The raw gas purified by this method contains ferric carbonyl compound below ppb, and the contamination of catalyst by iron or the inactivation of catalyst can be prevented.
Abstract translation: 通过（a）通过原料气体与氯气或溴气或碘气等卤素气体的反应将铁羰基化合物转化为卤化铁化合物，除去原料气体中的铁羰基化合物; （b）通过填料塔与惰性吸附剂如活性炭，粘土，氧化铝，硅藻土或硅藻土氧化铝。 通过该方法纯化的原料气体含有低于ppb的羰基羰基化合物，并且可以防止催化剂被铁污染或催化剂失活。
-
-
-
-
-
-
-
-
Search Results
53
records
(took 0.018 seconds)
