Abstract:
본 발명은 글리세롤의 수소첨가분해반응을 통한 1,2-프로판디올 생산 반응용 촉매 및 이를 이용한 1,2-프로판디올의 제조방법에 관한 것으로서, 구리-크롬 촉매에 귀금속인 팔라듐을 도입하여 활성점을 증가시킴으로써 낮은 수소 분압에서도 높은 활성을 나타내면서도, 펠렛 형태로서 연속공정에 적용 가능한 촉매 및 그 제조방법에 관한 것이다.
Abstract:
PURPOSE: A copper-chrome reaction catalyst is provided to increase activation point by introducing a palladium which is a precious metal into a copper-chrome catalyst, thereby having high activity even under a low hydrogen partial pressure, thereby being applied to a continuous process as a pellet shape. CONSTITUTION: A copper-chrome reaction catalyst of 1,2-propanediol comprises a metal element, and a copper-chrome catalyst. The metal element is a co-catalyst of a copper-chrome catalyst. A manufacturing method of the 1,2-propanediol comprises a step of preparing a metal precursor solution by dissolving a metal precursor compound into a solvent; a step of forming a precipitate by controlling pH of the metal precursor solution; a step of measuring the precipitate; a step of filtering and drying the precipitate; a step of incinerating the dried precipitate; and a step of adding an organic binder into the catalyst powder, pasting, and extrusion-molding the same. [Reference numerals] (AA) Example 5; (BB) Example 4; (CC) Example 3; (DD) Example 2; (EE) Example 1; (FF) Comparative example 1
Abstract:
The present invention provides a complex oxide catalyst having cylindrical regular mesopores and excellent acid characteristics and a manufacturing method thereof. A complex oxide catalyst according to the concrete example of the present invention includes tungsten oxide, zirconium oxide, and silicon oxide. The atomic fraction of the tungsten and the silicon is 0.1/1-0.14/1, and the atomic fraction of the zirconium and the silicon is 0.1/1-0.14/1. Moreover, the present invention provides a method for effectively manufacturing a high-value ester compound from ethanol and a carboxylic acid compound using the complex oxide catalyst. [Reference numerals] (AA) Example 1;(BB) Example 2;(CC) Example 3;(DD) Comparative example 2;(EE) Comparative example 3
Abstract:
PURPOSE: A catalyst for generating acrolein by the dehydration of glycerol and a manufacturing method of the same are provided to increase the conversation rate of glycerol to acrolein by suppressing the inactivation of the catalyst. CONSTITUTION: A catalyst for generating acrolein by the dehydration of glycerol includes a carrier, a metal atom, and heteropoly acid. The carrier is made of at least one atom selected from II family atoms, III family atoms, and IV family atoms in the periodic table, or the oxides of the selected atom. The metal atoms and the heteropoly acid are carried on the carrier. The metal atom is palladium. [Reference numerals] (AA) Comparative example 1; (BB) Example 1; (CC) Comparative example 2; (DD) Example 2
Abstract:
본발명은열린기공구조를갖는탄소담체에금속이분산된금속담지탄소촉매및 이의제조방법, 이촉매의존재하에셀룰로오스로부터소르비톨을생산하는방법에관한것이다. 본발명의촉매는열린기공구조로인해금속이고분산될수 있으며, 표면에결합된풍부한기능기로인해수소스필오버가다량발생하여, 본발명의촉매를이용하여셀룰로오스의전환반응을실시할경우, 매우높은선택도와수율로소르비톨을생산할수 있다.
Abstract:
PURPOSE: A heteropolyacid catalyst supported by silica sphere having an open pore and a manufacturing method of acrolein using the same are provided to improve conversion rate of glycerol to acrolein by reducing caulk deposition by the open pore silica support. CONSTITUTION: A heteropolyacid catalyst supported by silica sphere having an open pore comprises a heteropolyacid and a spherical silica support. The spherical silica support has an open pore structure. The heteropolyacid is supported by the support. The support has a shape repeatedly stretched from a center molecule with a branched shape. The heteropolyacid is represented by chemical formula 1, H_a[X_1Y_bZ_cO_d]_nH_2O.