Abstract:
The present statement provides a step of proceeding tyrosinase in lignin and making the mixture react, as a method for degrading a catalyst with lignin. When using the method, tyrosinase dose not need an alternate group, lignin is effectively degraded due to stability and activity, in a more eco-friendly way then heat or oxidation treatment, and lignin is also effectively degraded from ligro-cellulosic biomass, leading to easy production of bio fuel.
Abstract:
PURPOSE: A butyric acid producing method using a strain from Clostridium is provided to effectively produce butyric acid from galactan, a marine algae biomass, having a main carbohydrate component by producing butyric acid form galactose. CONSTITUTION: A strain from Clostridium uses galactose to produce butyric acid. A butyric acid producing method from galactose comprises treating the strain from the Clostridium on galactose and culturing to convert galactose to butyric acid. A separating method of the strain from the Clostridium comprises a step of removing a gram-negative bacteria by heat treating an anaerobic sludge, a step of inoculating the heat treated anaerobic sludge to the culture medium containing galactose and culturing, a step of selecting colonies with butyric acid resistancy by smearing the culturing solution obtained from the culturing to the culture medium containing butyric acid or the salt, and a step of separating the most butyric acid producing strain by measuring butyric acid of the selected colonies.
Abstract:
PURPOSE: A manufacturing method of phthalonitriles is provided to easily control temperature of a reactor and to have a low use amount of reaction raw material gas, and to irmpove yield of phthalonitriles. CONSTITUTION: A manufacturing method of phthalonitriles comprises a step of conducting a first ammoxidation by introducing a first raw material into a first reaction region; a step of adding a second raw material to the product, introducing the result to the second reaction region and conducting a second ammoxidation; a step of repeating the previous steps to obtain phthalonitriles. [Reference numerals] (AA) First raw material; (BB) Generated reaction gas; (CC) Catalyst; (DD) First reaction region; (EE) Second reaction region; (FF) Coolant; (GG) Second raw material
Abstract:
본 발명은 불소 함유 이온성 액체를 이용한 기체 흡수제에 관한 것으로서, 더욱 상세하게는 탄소수 1 ~ 6의 알킬기와, 탄소수 2 ~ 3의 함불소 알킬기를 동시에 갖는 디알킬이미다졸륨의 양이온 및 1,1,1-트리플루오로아세테이트의 음이온으로 구성된 이산화탄소(CO 2 ) 또는 이산화황(SO 2 )을 흡수하는 불소 함유 이온성 액체로서, 배출가스 정화용 기체 흡수제에 관한 것이다. 또한, 본 발명에 따른 기체 흡수제는 종래 기체 흡수제로 사용되던 알칼리 수용액이나 유기용매에 비해 부식성이 적고 증기압이 낮아 용매 손실이 없고 분리된 기체를 흡수제 증기로 오염시키지 않으면서 기체를 안정적으로 흡수할 수 있다. 불소, 이온성 액체, 기체 흡수제
Abstract:
An economical sulfuric acid decomposition catalyst capable of maintaining excellent reaction activity and stability at high temperatures and high pressures is provided, and a method for decomposing sulfuric acid using the catalyst is provided. A copper-iron binary oxide catalyst comprises a copper oxide and an iron oxide at a copper to iron molar ratio of 1:0.5 to 2.0. The copper oxide and the iron oxide are supported on a support. The copper-iron binary oxide catalyst comprises the support and the copper and iron oxides at a molar ratio of 1:0.1 to 1.0. The support is selected from the group consisting of silica, alumina, zirconia, titania, and mixtures thereof. A method for decomposing sulfuric acid comprises decomposing sulfuric acid in the presence of a copper-iron binary oxide catalyst comprising a copper oxide and an iron oxide at a copper to iron molar ratio of 1:0.5 to 2.0. The decomposition process is conducted at a temperature of 500 to 1200 deg.C and a pressure of 0.1 to 40 atmospheric pressures.
Abstract:
본명세서에는수소화효소유전자발현을억제하기위한안티센스 RNA 분자, 그를포함하는조성물, 그를암호화하는 DNA 서열을포함하는벡터, 상기안티센스 RNA 분자또는그를암호화하는 DNA 서열을포함하거나또는상기벡터로형질전환된숙주세포, 및그 숙주세포를이용한물질생산방법이개시된다. 이를이용하면수소화효소발현을억제시킬수 있고그에따라수소생산이감소하여부티르산과같이유용한물질생산을증가시키면서아세트산과같은부산물을감소시킬수 있고, 목당을효과적으로활용하여부티르산과같은유용물질을생산할수 있다.