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: 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.