Abstract:
PURPOSE: A salting-out crystallization method is provided to reduce production cost and energy for reactive black 8 and to maximize the production yield of reactive black 8. CONSTITUTION: A salting-out crystallization method for producing reactive black 8 comprises the steps of: bonding trichlorotriazine and chromophore of the chemical formula 1 to prepare a colorant intermediate; adding NH4OH to a pigment intermediate to prepare a dye synthetic fluid in which reactive black 8 is included in 20~25 weight%; adding salt of 10~15 weight% to the dye synthetic fluid to prepare a mixed solution; and filtering reactive black 8 extracted in the mixed solution.
Abstract:
본 발명에 따른 바이오 디젤 제조방법 및 바이오 디젤 제조장치는 일정한 공정을 반복 사용함으로써 바이오 디젤의 생산 시간을 현저하게 단축시킨 발명이다. 구체적으로는, 액체이산화탄소, 바이오디젤, 글리세롤 및 잔류물질을 분리 저장하는 공정을 추가하고, 이러한 공정을 반복하여 실시하는 것에 관한 발명이다. 그리하여 본 발명에 따라 바이오 디젤을 생산하게 되면, 확산 속도가 초임계 이산화탄소에 비해 느린 액체 이산화탄소를 사용하여 바이오 디젤을 생산하더라도 그 생산시간을 현저하게 단축 시킬 수 있게 된다. 또한 바이오 디젤 생산 공정에서 배출되는 잔류 물질들을 계속적을 재사용 할 수 있어, 보다 친환경적이고 경제적이며, 생산 비용을 현저하게 낮출 수 있다.
Abstract:
본 발명은 목질계 바이오매스 원료물질로부터 푸르푸랄 유도체를 직접 제조하기 위한 금속촉매조성물 및 이를 이용하여 목질계 바이오매스 원료물질로부터 푸르푸랄 유도체를 직접 제조하는 방법에 관한 것으로서, 목질계 바이오매스 원료물질로부터 푸르푸랄 유도체를 직접 제조하기 위한 금속촉매조성물에 있어서, MXn 또는 MXn·H 2 O를 포함하여 이루어지며, 상기 M은 금속원소이고, 상기 X는 할로겐 원소, 트리플레이트, 노나플레이트, 메실레이트, 토실레이트 또는 디아조늄으로 이루어진 작용기 중 어느 하나이며, 상기 n은 1 내지 3인 것을 특징으로 한다. 본 발명에 의하면, 종래에는 전처리, 단당화공정 등의 다단계 공정을 거쳐야 했던 푸르푸랄유도체의 제조공정을, 다종의 금속촉매를 최적의 비율로 혼합함으로써, 이로 인해 하나의 반응장치내에서 간단한 반응공정만으로 목질계 바이오매스 원료물질로부터 푸르푸랄 유도체를 바로 전환시킬 수 있는 장점이 있다.
Abstract:
PURPOSE: A semi-continual enzymatic bio diesel production method and production apparatus in the sub critical carbon dioxide are provided to make eco-friendly as the residual chemicals and enzymes discharged from a bio diesel production process are continuously recycled. CONSTITUTION: A bio diesel production method comprises a step in which oil and carbon dioxide are supplied through a carbon dioxide supplying line(13) which is connected to a oil supplying pipe that supplies oil in a bio catalyst reactor and in which methanol is supplied through a methanol supplying line(15); a step that separates bio diesel and carbon dioxide getting mixtures with bio diesel generated after the synthesis of bio diesel from bio catalyst reactor as the first separator(7) is connected to a bio catalyst reactor(6) and the first mixture supply line; a step that separates glycerol getting the mixture in which bio diesel and carbon dioxide is removed from the first separator as the second separator(10) is connected to the second mixture supplying line; and a step that supplies to oil supplying line getting supply of the mixture in which glycerol is removed from the second separator and methanol as a blender is connected to the second separator and the third mixture supplying line. [Reference numerals] (AA) Oil; (BB) Methanol; (CC) RMGS step
Abstract:
PURPOSE: A method for preparing 5-hydroxymethyl-2-furfural or an alkyl ether derivative thereof using ion exchange resin under the presence of an organic solvent is provided to enable easy isolation and purification, and to directly prepare chemically stable AMF(5-alkoxymethyl2-furfural). CONSTITUTION: A method for preparing a furan-based compound comprises: a step of reacting aldose type hexose compounds using an anion exchange resin by isomerization, and preparing ketose type hexose compounds; and a step of dehydrating the ketose type hexose compounds using a cation exchange resin.
Abstract:
PURPOSE: A method for preparing enzymetic bio diesel under the liquid dioxide condition is provided to prevent the suppression of enzyme activity. CONSTITUTION: A method for preparing bio diesel by trans-esterification of oil and methanol using an enzyme catalyst is performed using liquid carbon dioxide to prevent suppression of enzyme activity due to methanol. The used enzyme is lipase. The oil is natural oil, processed oil, or waste oil. The trans-esterification is performed at 20-30°C, 60-120 bar, and 100-500 rpm.
Abstract:
PURPOSE: A salting-out crystallization apparatus is provided to improve energy efficiency by varying conditions for salting-out crystallization processes. CONSTITUTION: A transferring and supplying unit(110) supplies salt. A reacting unit includes a reaction tank(121) and a mixing motor(122). The reacting unit mixes a mixed liquid containing the salt in the reaction tank. A separating and collecting unit(130) includes an internal rotator and a separating motor(133). The internal rotator includes a filtering net. The separating motor rotates the internal rotator in one direction. The separating and collecting unit separates crystallized reactive dye.