Abstract:
PURPOSE: Provided is a multi-stage stepwise neutralizing system for neutralizing alkali wastewater by recycling flue gas, and further provided is a method for neutralizing alkali wastewater. CONSTITUTION: The system a multi-stage neutralizing tank(13) having a plurality of neutralizing compartments(82,84,86) sectioned by a plurality of partition walls(73,75) with respective penetrating holes, and pipes(31,32) for supplying flue gas generated from an incinerator or a burner(1) to each compartment(82,84,86), wherein wastewater is introduced to a compartment(82) at a side of the neutralizing tank(13), and the wastewater passes through all compartments(82,84,86) and flown out from a compartment(86) at the other side of the neutralizing tank(13), and wherein height of the penetrating holes are lowered stepwise from one side of the tank(13) to the other side, so that the wastewater flows from the one side of the tank to the other side naturally.
Abstract:
The present invention relates to an indirect gasifier with a dual bubbling fluidized bed. The indirect gasifier comprises: a first bubbling fluidized bed reactor (100) including a gasification area (110) in which materials to be gasified are fed and gasified to be discharged as a synthetic gas; and a second bubbling fluidized bed reactor (200) that is installed adjacent to the first bubbling fluidized bed reactor (100) with a wall (300) therebetween and includes a combustion area (210) in which materials to be combusted are fed and combusted to be discharged as a combusted gas. A fluid sand transferring device (400) is installed on the wall (300) so as to move the gasification area (110) and combustion area (210), so that heat that is generated during combustion in the combustion area (210) is transferred to the gasification area (110). According to the configuration of the present invention, fluid sand is circulated by being horizontally moved in two bubbling fluidized bed reaction areas so that heat that is generated during combustion is transferred to the gasification area (110) and raw materials, which are fed in the indirect gasifier, are gasified. Fluid sand can be horizontally circulated so that the indirect gasifier can be stably and easily operated.
Abstract:
PURPOSE: Apparatus and a method of utilizing thermally decomposed char is provided to remove volatile hydrocarbon from thermally decomposed char quickly with increasing energy efficiency, and to remove inorganic material by using acid-alkali solution, thereby improving heating efficiency and profitability of thermal decomposition. CONSTITUTION: Apparatus and a method of utilizing thermally decomposed char comprises: a volatile hydrocarbon removal step by hating the thermally decomposed char; and an inorganic material removal step by putting the char into acid-alkali solution. The inorganic material removal step comprises: a step of removing inorganic material by putting the thermally decomposed char into acid solution; and a step of neutralization by putting the char into alkali solution.
Abstract:
PURPOSE: A waste tire recycling apparatus using a microwave heating method is provided to enable users to continuously pyrolyze waste tire for improving productivity and energy efficiency. CONSTITUTION: A waste tire recycling apparatus using a microwave heating method comprises the following: a waste tire supply unit successively inserting waste tire along to an inclined chamber; a waste tire pyrolysis-reaction unit(30) irradiating the waste tire with microwaves by transferring the waste tire in a vertical chamber(31); and closed chambers(23a, 23b, 23c) dividing the inclined chamber perpendicularly using opening/closing sliding gates(22a, 22b, 22c, 22d) for secluding the inflow of external air. The vertical chamber is connected to the waste tire supply unit. A transferring unit is installed inside the vertical chamber for transferring the waste tire to the downward direction. A magnetron is installed in the vertical chamber for radiating microwaves to the waste tire for pyrolyzing.
Abstract:
PURPOSE: A method for fuelizing the mixture of sewage sludge and coal using microwave is provided to rapidly implement a drying process by simultaneously heating the external side and the internal side of the mixture. CONSTITUTION: Coal and gasoline are mixed, and sewage sludge is added to the mixture of the coal and the gasoline. The sewage sludge added mixture is mixed to obtain the mixture of the coal-gasoline-sewage sludge. The mixture is aggregated, and the sludge-gasoline-coal aggregate is obtained. The sludge-gasoline-coal aggregate is dried by radiating microwave and applying hot wind. Gaseous oil generated from a drying process is collected.
Abstract:
PURPOSE: A continuous processing method of a batch type process for producing recycled fuel oil from waste plastic is provided to convert a batch type thermal cracking process into a continuous thermal cracking process by adding some apparatuses to the batch type thermal cracking process and remodeling a conventional apparatus. CONSTITUTION: A continuous processing method of a batch type process for producing recycled fuel oil from waste plastic comprises the steps of: transferring residue sludge stacked in a thermal cracking step to a sludge reactor(9); leaving the powdery residue at the back end of the sludge reactor and transferring the residue to a residue transfer device(10) by thermally cracking the transferred sludge in the sludge reactor at a temperature of 410 - 460°C; and transferring the residue to a cooling device(12) through the residue transfer device and storing the cooled residue in a storage device(13).
Abstract:
본 발명은 오일셰일 열분해 잔류물을 이용한 유기 고분자 및 중질유 열분해용 고체산 촉매 제조방법에 관한 것으로, 더욱 상세하게는 오일셰일 레토르팅 공정이 끝나고 남는 잔류물과 알칼리를 이용하여 오일셰일 공정에 사용할 수 있는 비정질 실리카알루미나 촉매를 제조하는 방법에 관한 것이다. 또한 본 발명은 상기 촉매를 사용하여 오일셰일 레토르팅에서 회수한 셰일오일을 경질화하여 경질오일을 수득하는 방법 및 폐플라스틱으로부터 경질오일을 수득하는 방법을 포함한다. 즉, 본 발명은 오일셰일 공정에 사용하는 촉매로서 레토르팅 폐기물인 오일셰일 열분해 잔류물로부터 제조한 저가 촉매를 사용함으로써, 오일셰일 공정 현장에서 바로 촉매의 합성이 가능할 뿐 아니라 오일셰일 경질화 공정에 소요되는 촉매의 제조비용을 감소시킬 수 있으며, 오일셰일 개발시 오일셰일 잔류물 매립 등으로 인한 지하수 및 토양 오염 감소에도 일조할 수 있는 것이다. 오일셰일, 잔류물, 알칼리, 반응물, 경질오일
Abstract:
본 발명은 석탄비산재부터 비정질 실리카알루미나 촉매를 제조하는 방법에 관한 것으로서 보다 상세하게는 석탄비산재와 알칼리를 이용하여 폐플라스틱 열분해 오일화 공정에 사용할 수 있는 비정질 실리카알루미나 촉매를 제조하는 방법에 관한 것이다. 한편 본 발명은 석탄비산재부터 얻은 비정질 실리카알루미나 촉매를 제조하는 방법에 의해 얻은 비정질 실리카알루미나 촉매를 폐플라스틱 열분해 오일화 공정에 사용하여 폐플라스틱으로부터 오일을 수득하는 방법을 포함한다. 본 발명은 석탄비산재로부터 저가의 비정질 실리카알루미나 촉매를 제조하는 방법과 이러한 방법에 의해 제조한 비정질 실리카알루미나 촉매를 폐플라스틱 열분해 오일화 공정에 사용하여 폐플라스틱으로부터 경질유 수준의 열분해 오일을 얻을 수 있다. 본 발명은 폐플라스틱을 열분해하는 오일화 공정에 사용하는 촉매로서 폐기물인 석탄비산재로부터 제조한 비정질 실리카알루미나 촉매를 사용함으로써 폐플라스틱 열분해 공정에 소요되는 촉매의 제조비용을 감소시킬 수 있다. 또한 본 발명에 의해 제조한 비정질 실리카알루미나 촉매는 폐기물인 석탄비산재를 이용하여 제조함으로써 환경오염 방지에도 일조할 수 있다.
Abstract:
본 발명은 알칼리성 폐수를 중화하는 폐수 중화시스템 및 그 방법에 있어서, 대기중으로 배출되는 연소배가스를 이용하여 알칼리성 폐수를 중화하는 알칼리성 폐수 중화시스템 및 그 중화방법을 제공하는 데 그 목적이 있다. 본 발명에 따르면, 연소기(1)에서 배출하는 연소배가스를 이용하여 알칼리성 폐수를 정화하는 알칼리성 폐수 중화시스템에 있어서, 내부에 다수의 격벽(73, 75)이 설치되어 상기 격벽(73, 75)의 수보다 하나 많은 수의 격실(82, 84, 86)이 구성되며, 일측 격실(82)로 유입된 폐수가 타측 격실(86)로 유동하여 배출될 수 있도록 상기 격벽(73, 75)에 형성된 관통공이 상기 일측에서 타측으로 점차 낮은 위치에 각각 형성된 다단 중화조(13)와, 상기 연소기(1)에서 발생한 상기 연소배가스가 상기 다단 중화조(13)의 적어도 하나 이상의 격실(82, 84, 86)로 주입되도록 상기 연소기(1)와 상기 다단 중화조(13)를 연결하는 배관(31, 32)을 포함하는 알칼리성 폐수 중화시스템이 제공된다.
Abstract:
PURPOSE: Provided are a cracking device for polymer waste having pressure transducer system, which changes a pressure inside the system and maintains a quality of the resulting oil to desired level, and which increases yields, and a cracking method. CONSTITUTION: The device comprising a melting unit(21) for melting a polymer waste, a reactor(22) for cracking a molten waste, a quenching bath(23) for cooling a gas formed in the reactor(22), and a condenser(25) for condensing a product formed in the bath(23), wherein the melting unit(21) is communicated with the bath(23) and the condenser(25), is characterized by further comprising a first gas discharge pipe, which discharges a gas from the inside of the condenser(25) and has a first control valve for controlling a discharge of the gas; a second gas discharge pipe, which discharges a gas from the inside of the condenser(25) and has a second control valve for controlling discharge of the gas; and a suction pump for inhaling a gas from the inside of the condenser(25).