Abstract:
본 발명은 고정층 피셔-트롭쉬 반응에 적합하고 항공유분을 선택적으로 증대시키는 성형 촉매 조성물 및 이를 이용한 탄화수소 제조 방법에 관한 것으로, 철 성분의 조성에 조촉매 역할을 할 수 있는 활성성분으로 구리 및 망간 성분을 알루미나 비드 지지체에 적절한 조성과 농도로 포함시켜 성형촉매로 100 Fe-αCu-βMn 형태를 가지며, 구리 성분 (α)은 5 - 15% 정도, 망간 성분 (β)은 0.5 - 10% 정도로 구성되어 있다. 따라서 이러한 조성물의 촉매를 사용하여 FT 반응을 실시할 때, 합성가스를 사용하여 FT 반응시 일산화탄소의 전환율을 90% 이상을 유지하며, 항공유분 (C 11 - C 17 )에 해당하는 탄화수소 선택도는 30% 이상을 얻는 것이 가능하다.
Abstract:
PURPOSE: Provided are a molding catalyst composition capable of increasing the selectivity of abiation oil by directly using a molding catalyst suitable for a pinned layer Fischer-Tropsch reaction, a manufacturing method thereof, and a method for manufacturing liquid hydrocarbon using the same. CONSTITUTION: A method for manufacturing a molding catalyst composition comprises the steps of: manufacturing a precursor aqueous solution by melting Fe(NO3)3·9H2O, Cu(NO3)2·3H2O and Mn(NO3)3·9H2O, which act as active ingredients, into distilled water with a predetermined weight ratio; injecting an alumina bead into a rotary evaporator, and stirring; forming a mixture by injecting the precursor aqueous solution into the rotary evaporator, and thereby impregnating the alumina bead and the precursor aqueous solution; vaporizing the mixture; and drying the vaporized mixture.
Abstract:
A heat resistant isomerization catalyst, and a method for preparing exo-tetrahydrodi(methylcyclopentadiene) by using the catalyst are provided to reduce processing time and to simplify manufacturing equipment. A heat resistant isomerization catalyst comprises a heteropolyacid containing cesium, and is used in the isomerization of endo-tetrahydrodi(methylcyclopentadiene) into exo-tetrahydrodi(methylcyclopentadiene). A method comprises the steps of firstly hydrogenating methylcyclopentadiene dimer in the presence of a hydrogenation catalyst at 50-150 deg.C to prepare dihydrodi(methylcyclopentadiene); and secondly hydrogenating and isomerizing the dihydrodi(methylcyclopentadiene) in the presence of a hydrogenation catalyst and the heat resistant isomerization catalyst at 150-300 deg.C.
Abstract:
A polymeric bonding agent for composite solid propellent is provided to increase mutual bonding between filler and binder and to improve mechanical properties of the propellent by comprising terpolymer based on acrylonitrile or methacrylonitrile, 2-hydroxyethylacrylate or 2-hydroxyethylmethacrylate, acrylic acid or methacrylic acid, and carboxylic functional group hydrogen bonded to nitramine oxidant. The polymeric bonding agent includes polymer having carboxylic acid functional group capable of hydrogen bonding to nitramine oxidant and, comprises terpolymer containing: 0.3-15.0wt.% of acrylic acid or methacrylic acid; 10.0-30.0wt.% of 2-hydroxyacrylate or 2-hydroxymethacrylate; and 45.0-89.7wt.% of acrylonitrile or methacrylonitrile. The bonding agent has number average molecular weight ranging from 3,0000 to 100,000. The solid propellent includes nitramine oxidant and uses the polymeric bonding agent.