화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.30, No.6, 712-718, December, 2019
DOI10.14478/ace.2019.1076  Export Citation
오일 스크러버 및 집진장치를 통한 바이오매스 가스화 공정 발생 타르 및 입자 제거 연구
Simultaneous Treatment of Tar and Particles Using Oil Scrubber and Bag Filter in Biomass Gasification
김준엽1, 2, 조영민2, 김상범1, †
  • 1한국생산기술연구원
  • 2경희대학교 환경응용과학과
Joon Yub Kim1, 2, Young Min Jo2, and Sang Bum Kim3, †
  • 1Korea Institute of Industrial Technology, Seobuk-gu, Cheonan-si, Chungcheongnam-do 31056, Republic of Ko, Korea
  • 2Department of Applied Environmental Science, Kyunghee University, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
  • 3Korea Institute of Industrial Technology, Seobuk-gu, Cheonan-si, Chungcheongnam-do 31056, Republic of Korea
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초록
가스화(gasification)는 바이오매스로부터 에너지를 얻을 수 있는 방법 중 하나로 열화학적 변환을 통해 수소, 일산화탄소, 메탄 등으로 조성된 가연성 가스인 ‘producer gas’를 생산할 수 있다. 하지만 producer gas와 함께 타르(tar)를 비롯한 ash 등의 입자상 물질이 함께 생성돼, 발전 터빈이나 연소 엔진 등에 유입되어 고장을 일으키거나 배관 등에 축적되어 막힘 현상 등을 야기하므로 제거가 필요하다. 본 연구에서는 producer gas 중 타르 및 입자 제거를 위해 오일 스크러버(oil scrubber)와 집진장치를 도입하였다. 흡수용매로써 타르를 효과적으로 제거가 가능한 대두유를 사용하였고, 스크러버의 용매 온도에 따라 제거효율이 어떻게 변화하는지 실험을 통해 관찰하였다. 집진장치에는 타르로 인한 필터 눈 막힘 현상 등의 문제를 방지하기 위해 pre-coating 기술을 도입하였다. Pre-coating에 사용할 물질로써 분말 소석회와 목탄계 활성탄(wood char)을 사용하였으며, 타르(tar)를 비롯한 입자 평균 제거 효율은 소석회를 pre-coating 물질로 사용 시 86%, 활성탄의 경우 80%로 나타났다. 스크러버와 집진장치를 동시에 사용한 경우에는 평균 제거효율이 소석회는 88%, 활성탄의 경우 83%로 나타났다.
A combustible producer gas composed of H2, CO and CH4 could be obtained by the thermal-chemical conversion of biomass.However, a large amount of particulate matters including tar generated causes the mal-function of turbines and engines or the fouling of pipelines. In this study, a wet scrubber using the soybean oil and bag filter were installed, and the removal efficiency was investigated. Hydrate limestone and wood char base activated carbon were pre-coated on the filter medium to prevent clogging of open pores. The removal efficiencies by the bag filter were 86 and 80% for the hydrated limestone and activated carbon coating, respectively. Overall, the collection when using a series of oil scrubbers and bag filters were 88%, while 83% for the filter coating material.
Keywords:Biomass;Gasification;Particulate;Oil-scrubber;Pre-coating
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