Abstract:
PURPOSE: An apparatus for processing exhaust gas and a method for preventing environmental contamination are provided to minimize the generation of wastewater by neutralizing the ammonia of a small amount which is discharged without absorbing to sulfuric acid. CONSTITUTION: A unification line(17) merges an exhaust gas line to one line. A absorptive tower(20) receives exhaust gas which comes out through the unification line and reacts the exhaust gas with water or deionized water. The water or a deionized water injection line is installed on the upper side of the absorptive tower. The water or a deionized water injection line injects the water or the deionized water to the inside of the absorptive tower. A neutralizing tank(24) neutralizes ammonia gas which comes out through the exhaust gas line of the upper side of the absorptive tower.
Abstract:
본 발명은 고순도 일산화질소와 고순도 아산화질소의 제조 방법에 관한 것으로, 공업용 저순도 암모니아를 기화시켜 순도를 높여서 원료로 사용하기 위하여 리보일러, 칼럼 및 냉각기로 구성된 증류탑을 사용하여 고순도 암모이나를 제조하는 하는 제1단계 공정을 거쳐서, 상기 제조된 고순도 암모이나를 촉매가 탑재된 촉매반응기에 투입하면서 산소를 주입하여 부분 산화시켜 NO(일산화질소), N 2 O(아산화질소)를 합성하는 제2단계 공정을 거치고, 촉매반응기에서 반응 후 생산된 혼합가스를 리보일러, 칼럼, 냉각기로 이루어진 증류탑을 사용하여 분리 정제하는 제3단계 공정으로 이루어진 고순도 일산화질소와 아산화질소의 제조방법 및 고순도 일산화질소와 아산화질소의 제조공정에 사용된 되는 고순도 일산화질소와 아산화질소의 제조장치를 제공하는 것이다.
Abstract:
PURPOSE: A method and an apparatus for producing high-purity chlorine are provided to quickly prepare a large amount of liquid chlorine and to ensure convenient maintenance of the producing apparatus. CONSTITUTION: A method for producing high-purity chlorine from liquid chlorine or low-purity chlorine produced in electrolysis is as follows. Water, carbon dioxide, hydrochloride, and heavy metal having a high volatilization point are discharged through a vent installed in a reboiler and removed using a first-stage distillation tower(22) consisting of the reboiler(14), a column(18), and a cooler(16). Most of the chlorine gas produced through the first-stage distillation tower is liquefied by a cooler of a second-stage distillation tower(23) and carbon dioxide, oxygen, nitrogen, and hydrogen having a low volatilization point are discharged to a vent installed on an upper side of the second-stage distillation tower. The liquid chlorine is collected in the reboiler and the collected liquid chlorine is transferred to a chlorine storage tank(20).
Abstract:
PURPOSE: A producing method of hydrogen bromide using a reactor, a producing apparatus of the hydrogen bromide, and the reactor are provided to improve the durability and the reliability of the producing apparatus. CONSTITUTION: A producing method of hydrogen bromide using a reactor comprises the following steps: mixing hydrogen gas and bromine gas; selecting a catalyst from Pt, Pd, Cu and Ni, dipping the catalyst to a carrier, drying the carrier, and filling the reactor(12); and passing the mixed gas containing the hydrogen gas and the bromine gas through a reaction pipe(13) filled with the catalyst inside the reactor, to obtain the hydrogen bromide. The carrier is selected from the group consisting of diatomite, silica gel, alumina, activated charcoal, clay, and zeolite.
Abstract:
PURPOSE: An acidic cleaning agent for removing hazardous gases and a producing method thereof are provided to reduce the risk of fires by the combustion of activated charcoal and the production of the activated charcoal and metal materials into a pellet shape. CONSTITUTION: An acidic cleaning agent for removing hazardous gases contains the following: 60~99wt% of a main component selected from hydroxy iron, ferric oxide, calcium hydroxide, and magnesium hydroxide; and 1~40wt% of activated charcoal powder. The acidic cleaning agent is produced by mixing and kneading the components. The purifying agent additionally contains 1~10wt% of binder material selected from silica, diatomite, the activated charcoal, and active alumina.
Abstract:
PURPOSE: Method and apparatus for continuously eliminating exhaust gas from a light emitting diode manufacturing process using a wet type scrubber and a catalytic reaction scrubber are provided to collect ammonium sulfate generated by neutralization reaction and to re-sell the ammonium sulfate. CONSTITUTION: A method for continuously eliminating exhaust gas from a light emitting diode manufacturing process includes the following: ammonia is eliminated from exhaust gas using a wet type scrubber; hydrogen is combusted and eliminated from the exhaust gas using a catalytic reaction scrubber. During the ammonia eliminating process, ammonia from the lower tank of the wet type scrubber is reacted with a neutralizing solution. The neutralizing solution is one or more selected from water, deionized water, sulfuric acid, nitric acid, and hydrochloric acid.
Abstract:
본 발명은 수소와 브롬가스를 Pt, Pd, Cu, Ni 등으로 제조된 촉매가 충진된 반응기에서 반응시켜 브롬화수소를 생산하므로 반응온도를 낮추어서 작업의 안전성을 높이고 반응조건을 균일하게 유지하여 제조되는 브롬화수소의 품질을 높일 수 있는 브롬화수소 반응기와 브롬화수소 제조장치 및 제조방법을 제공하는데 그 목적과 효과가 있다. 본 발명은 브롬화수소를 제조하기 위하여 수소가스와 브롬가스를 혼합하는 장치에 의하여 수소와 브롬가스를 혼합하여 반응기로 주입하고, 가스의 혼합비율은 몰비로 브롬(Br)가스 1에 대하여 수소가스를 0.5내지 2.0사이에서 유지하며, 수소가스와 브롬가스가 혼합된 기체는 열교환기 형태로 제작된 반응기로 유입되어 반응기 내부의 반응관에 충진된 촉매와 접촉 반응하여 브롬화수소를 생성하며, 반응개시 온도는 80℃내지 250℃구간에서 이루어지고, 반응이 개시되기 전에 컨트롤장치에서 히터를 동작시켜 반응기 내부의 온도를 150℃정도로 유지하며, 일단 반응이 개시되면 발열반응에 의해 열매체의 출구온도가 상승하게 되고, 이때부터 히터에 의한 열 공급이 중단되며, 냉각장치로 냉각수를 공급하여 반응기 내부의 온도를 일정하게 유지하여 브롬화수소를 생성하도록 구성되어 있다. 브롬, 촉매, 반응열, 브롬화수소 제조장치, 반응기, 냉각장치