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NTIS 바로가기청정기술 = Clean technology, v.26 no.2, 2020년, pp.137 - 144
조광희 (충남대학교 에너지과학기술대학원) , 박지혜 (충남대학교 화학공학교육과) , (충남대학교 에너지과학기술대학원) , 윤형철 (한국에너지기술연구원) , 이광복 (충남대학교 화학공학교육과)
Metal-impregnated activated carbons were prepared via ultrasonic-assisted impregnation method for regeneration and low ammonia concentration. Magnesium and copper were selected as metals, while chloride (Cl-) and nitrate (NO3-) precursors were used to impregnate the surface of activated carbon. The ...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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PSA 공정는 어떠한 장단점이 있는가? | TSA 공정은 흡착제를 재생하기 위하여 일정 온도까지 승온시켜 흡착된 기체를 탈착시킨 후 상온으로 온도를 다시 낮추어 재흡착을 반복해야 하는 복잡한 단계를 포함한다. 반면 PSA 공정은 압력을 조절하기 때문에 작동을 단순화 할 수 있어 시간을 단축시키지만 흡착제와 흡착질 사이의 결합이 강한 경우, 흡착질의 회수율이 낮은 장단점을 가지고 있다[25-29]. | |
Haber-Bosch 공정은 어떠한 문제점이 있는가? | 현재 대부분의 암모니아는 Haber-Bosch 공정을 통해 생산되며, 약 773K 이상의 고온과 15~30 MPa의 고압에서 수소와 질소가 Fe 촉매 기반에서 반응하여 생성된다[5, 6]. 이 공정은 다량의 이산화탄소 발생으로 인한 심각한 환경오염 및 높은 에너지 소비량으로 인해 이를 대체하는 친환경 공정 개발이 필요하다[7]. 그중 전기화학적 암모니아 합성(electrochemical ammonia synthesis)은 친환경적으로 암모니아를 생산하는 공정으로 최근 몇 년간 연구가 되고 있으며, 상압 및 373K 이하의 비교적 낮은 온도에서 물과 공기를 반응시켜 암모니아를 생산할 수 있는 장점이 있다[8, 9]. | |
암모니아(NH3)는 어디에 쓰이는가? | 암모니아(NH3)는 전 세계적으로 널리 생산되는 화학물질 중 하나로, 섬유, 플라스틱, 비료 등 여러 산업 분야에서 다양하게 사용된다[1-3]. 또한 메탄올은 수소 함량이 12. |
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