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내부순환유동층 반응기에서의 폐타이어 가스화 특성

Gasification Characteristics of Waste Tire in an Internally Circulating Fluidized Bed

이승엽 김용전 김상돈^†

Seung Yup Lee Yong Jeon Kim Sang Done Kim^†

한국과학기술원 화학공학과 및 에너지 환경 연구 센터, 대전

Dept of Chem. Eng. & Energy Research Center, KAIST, Taejon, Korea

kimsd@cais.kaist.ac.kr

HWAHAK KONGHAK, February 2001, 39(1), 72-76(5), NONE

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Abstract

오리피스 형태의 드래프트 관을 갖는 내부순환유동층 반응기에서 폐타이어의 가스화 반응을 수행하였다. 대기압하에서 반응온도(750-900℃), 수증기/탄소 비(0.94-1.67), 산소/탄소 비(0.23-0.47)의 변화에 따른 생성가스의 조성, 수율, 발열량, 탄소전환율, cold gas efficiency 등을 측정하였다. 애뉼러스 영역의 생성가스는 21.5-39.2% H₂, 3.8-12.2% CO, 34.8-19.6% CO₂, 12.5-15.3% CH₄, 25.0-15.0% C₂H₄, 0.4-0.2% C₂H₆, 1.7-0.1% C₃H₆의 조성(vol%, N₂ free)을 가진다. 애뉼러스 영역의 생성 가스 수율은 0.389-0.490 m³/kg tire, 발열량은 24.5-21.7 MJ/m³, 탄소 전환율은 27.2-34.4%, cold gas efficiency는 46.9-51.6%의 값을 나타내었다.

Waste tire was gasified in an Internally Circulating Fluidized Bed (ICFB) with draft tube(orifice type). The effects of reaction temperature(750-900℃), steam/carbon ratio(0.94-1.67) and oxygen/carbon ratio(0.23-0.47) on composition, gas yield, calorific value, carbon conversion and cold gas efficiency of the product gas have been determined. The product gas in the annulus region contains 21.5-39.2% H₂, 3.8-12.2% CO, 34.8-19.6% CO₂, 12.5-15.3% CH₄, 25.0-15.0% C₂H₄, 0.4-0.2% C₂H₆, 1.7-0.1% C₃H₆(vol%, N₂ free basis) with a gas yield of 0.389-0.490 m³/kg-tire, calorific value of 24.5-21.7 MJ/m³, carbon conversion of 27.2-34.4% and the cold gas efficiency of 46.9-51.6%.

Keywords

Internally Circulating Fluidized Bed(ICFB) Waste Tire Gasification

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