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과정과 촤 가스화 과정에서 우드칩 연료의 타르발생 특성의 변화
문지홍(Ji Hong Moon),성연경(Yeon Kyung Sung),이정우(Jeung Woo Lee),방병열(Byeong Ryeol Bang),이은도(Uen Do Lee) 한국열환경공학회 2010 한국열환경공학회 학술대회지 Vol.2010 No.춘계
Woodchip, a carbon neutral fuel, is one of the fastest growing renewable energy sources. Among many conversion methods to energy, gasification is the best way in terms of energy efficiency and various options for end use like heat, steam, electronics, gaseous and liquid fuel. In the gasification process of woodchip, tar treatment is very important to avoid any mechanical problems and to increase heating value of product gas. However, tar generation process is not fully understood yet. In this study, we investigated tar generation characteristics of woodchip in devolatization and char gasification process. We found that different kinds of tar was generated in the devolatization and gasification process. The effects of temperature and steam amount are also studied.
파일럿 규모의 폐기물 다단열분해 가스화시스템의 운전특성
이정우(Lee, Jeong-Woo),류태우(Yu, Tae-U),방병열(Bang, Byeong-Ryeol),문지홍(Moon, Ji-Hong),이재욱(Lee, Jae-Uk),박상신(Park, Sang-Shin),김낙주(Kim, Nack-Joo) 한국신재생에너지학회 2009 한국신재생에너지학회 학술대회논문집 Vol.2009 No.11
A novel multi-staged waste pyrolysis & gasification system of pilot scale (~1 ton/day) is designed and constructed in Korea Institute of Industrial Technology. The pyrolysis & gasification system is composed of pyrolysis & gasification system, syngas reformer, syngas cleaning system, gas engine power generation system and co-combustion system. For each unit process, experimental approaches have been conducted to find optimal design and operating conditions. As a result, We can produce syngas with a calorific value of ~4000 kcal/Nm³ and cold gas efficiency of the system is more than 55 % in case of waste plastic and oxygen as a gasifying agent.
신명철(Myung-Chul Shin),김세원(Se-Won Kim),박주원(Ju-Won Park),방병열(Byeong Ryeol Bang),양원(Won Yang),고영건(Young-Gun Go) 한국연소학회 2009 한국연소학회지 Vol.14 No.1
A novel low NOx oil burner of 0.7 MW (for a 1 ton steam/hr industrial boiler) was designed and tested to investigate the combustion characteristics through in-flame measurement and flue gas analysis. Flame shape was observed by CCD camera and CH<SUP>*</SUP>/C₂<SUP>*</SUP> radical distribution in the flame were observed, along with measurement of flue gas composition such as NOx and CO, for various heat inputs, excess airs and pressure of the fuel spary nozzles. The flame showed the two-zone structure: fuel-rich and fuel-lean zone, which was very favorable for the low-NOx combustion, and the NOx emission for haevy oil combustion was significantly reduced to < 150 ppm at 4 % O₂, compared with the NOx level of a conventional heavy oil burner.