摘要:
La invención se refiere a un sistema de mantenimiento e intercambio de difusores de aire desde el exterior de un biorreactor aerobio, caracterizado por comprender un niple de montaje fijo herméticamente en la pared de un biorreactor, el cual comprende en su extremo exterior una conexión de u n conducto de entrada de aire con una válvula de control de flujo conectada a un sistema de distribución de aire desde una fuente de suministro de aire, y configurado para alojar deslizablemente una espiga interna hueca de montaje e intercambio que comprende en su extremo interior un medio de fijación Iiberable con el que se fija en comunicación fluida de aire al extremo de un difusor de burbuja fina o gruesa de aire que se dispone al interior del biorreactor, y al menos un barreno pasante en su pared que coinciden con el extremo del conducto de entrada de aire; dicha espiga interna además comprende en su extremo orientado hacia el exterior una placa de obturación y medios de acoplamiento y enganche de una varilla de extracción y posicionamiento; cerca de su extremo exterior dicho niple de montaje está configurado para montar un primer copie flexible adaptado para montar una válvula de control de flujo de agua en la que se monta un segundo copie flexible configurado a su vez para recibir el extremo abierto de una exclusa de mantenimiento e intercambio de difusor de burbuja fina o gruesa de aire donde se aloja dicha varilla de extracción y posicionamiento.
摘要:
An apparatus and method for extracting nitrogen including compounds from wastewater is disclosed herein. The methods and apparatus use molecularly designed selective electrocatalysts, electrolytes, and separation reactors to enable automated, distributed ammonia manufacturing with minimal environmental impacts. In some embodiments, a method of nitrogen reduction of wastewater is provided. The method includes: providing an apparatus including: a first chamber comprising a salt solution; a second chamber comprising a wastewater source; a third chamber comprising a salt solution and a third electrode, wherein the second chamber is positioned between the first chamber and the third chamber; an anion exchange membrane positioned between the first chamber and the second chamber; and a cation exchange membrane positioned between the second chamber and the third chamber; applying a potential bias between any two of the first chamber, the second chamber, and the third chamber.
摘要:
The present disclosure relates to a flue gas treatment system (e.g. a multi-pollutant flue gas treatment system) for removal of greenhouse gases such as SO 2 , NO, NO 2 , H 2 S, HCl, water and CO 2 as well as heavy metals (e.g. mercury, arsenic, bismuth, cadmium, lead and/or selenium) from the flue gases of fossil-fueled utility and industrial plants by reacting the raw flue gas, firstly, with chlorine in a gas-phase oxidation reaction and recovering the resulting products as marketable products, and then, secondly, treating the cleaned gas, which includes CO 2 , with a Sabatier reaction to produce a hydrocarbon fuel (e.g. methane). The system also includes an electrolytic unit for electrolyzing HCl to produce hydrogen gas for the Sabatier reaction as well as chlorine gas, which may then be recycled into the reactor.
摘要:
The present invention is directed to a process for removing gas phase nitrogen-based compounds by absorption into a liquid stream. The absorbed nitrogen-based compound is reacted with an acid to produce a nitrogen-based product. The nitrogen-based compound, the acid, and the resulting nitrogen-based product may be organic compounds, i.e. compounds derived from animal matter or plant matter. The nitrogen-based product may be a fertilizer, such as ammonium acetate or ammonium citrate that may be certified as organic. Processes are also described for removing nitrogen-based compounds from a liquid stream to produce a nitrogen-based product, including organic fertilizers. One process includes producing cavitation bubbles into which a liquid phase nitrogen-based compound is stripped, followed by absorption to produce a nitrogen-based product. Another process includes the use of a degassing membrane to remove a liquid phase nitrogen-based compound that is degassed to produce a nitrogen-based product, including organic fertilizers.
摘要:
An adsorptive gas separation process and system is provided for separating at least a first component from a multi-component fluid mixture, or specifically for separating at least a first component from a post-combustion gas stream produced by a fuel combustor. The adsorptive gas separation process and system employs a steam stream during at least one regenerating step at sub-ambient pressure.
摘要:
An aftertreatment system comprises an aftertreatment component. An outlet sensor is positioned downstream of the aftertreatment component. A controller is communicatively coupled to the outlet sensor. The controller is configured to interpret an outlet signal from the outlet sensor. The outlet signal is indicative of a performance of the aftertreatment component. The controller determines if the aftertreatment component has deactivated. In response to determining that the aftertreatment component has deactivated, the controller provides a catalyst active material to at least a portion of the aftertreatment component. The catalyst active material coats at least the portion of the aftertreatment component so as to remanufacture the aftertreatment component.
摘要:
The invention concerns a process for the removal of ΝΟχ from gaseous effluents generated in the production of fertilizer. The composition of the ΝΟχ in this gaseous effluent is rich in NO 2 . The process comprises the steps of treating the gaseous effluent with ozone and oxidizing NO and NO 2 present in the ΝΟχ to higher nitrogen oxides, and, passing the resultant gas mixture through a wet scrubber and removing the higher nitrogen oxides. The invention further concerns the use of ozone as an oxidant in the removal on ΝΟχ from a gaseous effluent generated in fertilizer production; and a fertilizer production plant, designed to remove ΝΟχ from the gaseous effluent that is generated in the running of that plant.
摘要:
A process for the finishing of urea comprising: (a) removing water from an aqueous urea solution in a first evaporation and condensation section, obtaining a urea melt; (b) subjecting said urea melt to a finishing treatment comprising granulation and resulting in solid urea and air contaminated with urea dust and ammonia; (c) subjecting said contaminated air to acid scrubbing, producing an aqueous solution comprising urea and ammonium salts; (d) subjecting at least part of said aqueous solution to evaporation in a second evaporation section, obtaining a liquid stream comprising urea and ammonium salts and a gaseous stream; (e) condensing said gaseous stream in a second condensation section, obtaining a recycle aqueous stream; (f) using at least a part of said recycle aqueous stream for the scrubbing of contaminated air; (g) converting at least a portion of said liquid stream comprising urea and ammonium salts into solid particles, and (h) using said solid particles as seeds for the granulation; a corresponding urea plant and method of revamping a urea plant are also disclosed.
摘要:
본 발명은 배기가스의 탈질을 위한 SCR 탈질시스템에 사용되는 반응기에 관한 것으로, 보다 상세하게는 기존에는 반응기 내 SCR촉매를 장입시키기 위해 작업자가 들어갈 수 있도록 하기 위한 작업공간 확보를 위해 부피가 커지고 그로 인해 상대적으로 반응기 자체의 길이가 길어지게 되는 문제를 반응기 내 SCR촉매의 슬라이딩 방식의 장입구조를 통해 반응기본체 내 SCR촉매 장입을 위한 작업공간을 제거하여 반응기 자체의 부피와 길이를 최소화하여 협소한 설치공간에서도 설치 가능하도록 하는 부피를 최소화하는 구조를 갖는 SCR반응기에 관한 것이다.
摘要:
본 발명은 연속 산소 흡탈착 장치 및 이를 이용한 연속 산소 흡탈착 방법에 관한 것으로서, 보다 자세하게는 BaMg(CO 3 ) 2 입자 또는 BaMg(CO 3 ) 2 의 외부에 MgCO 3 또는 Mg(OH) 2 가 부착된 입자에서 선택된 산소 선택성 흡탈착제가 충진된 다수의 흡탈착탑을 이용하여 고순도의 산소 제품을 생산하기 위한 연속 산소 흡탈착 장치 및 이를 이용한 연속 산소 흡탈착 방법에 관한 것이다.