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NTIS 바로가기한국산학기술학회논문지 = Journal of the Korea Academia-Industrial cooperation Society, v.20 no.12, 2019년, pp.804 - 815
김준엽 (한국생산기술연구원) , 최병권 (한국생산기술연구원) , 조영민 (경희대학교 환경응용과학과) , 김상범 (한국생산기술연구원)
Due to the depletion and environmental problems of fossil fuel, biomass has arisen as an alternative energy source. Biomass is a renewable and carbon-neutral source. However, it is moister and has lower energy density. Therefore, biomass needs thermal chemical conversion processes like gasification,...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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Pre-coating 기술의 특징은 무엇인가? | Pre-coating 기술은 필터를 통한 여과 개시 전 pre-coat 물질을 투입하여 필터 표면에 mm 단위의 얇은 입자 층을 형성시켜 필터에 눈 막힘 등 문제를 야기하는 물질로부터 필터 표면을 보호할 뿐 아니라 필터를 통과하는 미세 입자를 사전에 생성시킨 입자 층에서 제거하므로 결과적으로는 필터 여과성능을 향상시켜준다[18,20]. | |
가스화 공정에 집진 장치를 적용시 사용하는 세라믹 필터의 한계점은 무엇인가? | 세라믹 필터의 경우 그 비용이 상당하고, 기계적 특성이 약하기 때문에 [14,17], 세라믹 필터에 비해 저렴하면서, 동일하게 입자 제거 성능이 우수한 섬유 필터(fabric filter)를 적용한다면 개선이 가능하나, Hasler (1999)등이 실험을 통해 밝힌 바와 같이 타르에 의해 필터 여과기능이 저하되거나 상실되므로 [13], pre-coating 기술의 도입이 필요하다[18,19]. | |
타르의 정의는 무엇인가? | 타르는 탄화수소의 복합체로써 그 종류가 다양하다. 연구자마다 내리는 정의가 다르긴 하나, 공통적으로 벤젠 이상의 분자량을 가지며 점착성이 있는 물질이라고 명시하고 있다[10,11]. |
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Sascha Schiller, Christoph Hellmich, Hans-Joachim Schmid, "Evaluation of the Efficiency of Filtration Processes Using Precoat Materials", Chem. Eng. Technol., vol.39, no.3, pp.491-498, Nov. 2016. DOI: https://doi.org/10.1002/ceat.201500385
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