저온열분해 시스템개발을 위한 농산부산물의 열분해속도 구명
Investigation of the Pyrolysis Process Speed of Agricultural By-products for the development of Low Temperature Pyrolysis System
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초록
본 연구에서는 농산부산물의 추출물의 유효 성분 함유량을 최대화 하면서 경제적으로 생산할 수 있는저온 열분해 탄화 시스템을 개발하기 위하여 왕겨 및 은행잎을 재료로 Thermo GravimetricAnalyzer(TGA;열중량분석기) 추출 실험을 실시하여 열분해속도를 구명하였다. 두 시료는 가열속도 5∼50℃/min에서, 가열온도 40∼70℃에서 탈휘발이 시작되어 200∼300℃까지 탈휘발이 활발히 진행되면서 열분해 속도가 가장 높으며 약 300℃에서 열분해속도가 급감하여 400℃이내에서 열분해가 완료되는것으로 나타났다. 가열 속도가 높아질수록 열분해가 시작되는 온도가 높아짐을 알 수 있었고, 최적 가열속도는 30℃/min로 추정되며 이때 두 시료의 열분해속도는 9%/min로 동일하게 나타났다. 따라서 농산부산물의 열분해가 완료되는 온도는 가열속도에 관계없이 400℃ 이내로 추정된다.
Abstract
The development of the environmentally friendly technology to use of agricultural by-productsabout 20% of the total production of the agricultural products as the useful clean resources isvery important and urgent for the recycling of the resources, environmental protection andenergy recovery. the low-temperature pyrolysis carbonization system of the agriculturalby-products was used to maximize the useful ingredient content of the agricultural by-productsand produce them economically. For the development of the system, TGA test of ginkgo andchaff to investigate the pyrolysis process speed of the agricultural by-products were performed. Under the heating rate of 5~50℃/min, the volatilization of two materials was started at theheating temperature of 40~70℃, proceeded actively to 200~300℃ and finished between 300~400℃. The pyrolysis starting temperature became higher with the heating rate becoming higherand the estimated optimum heating rate was 30℃/min and the pyrolysis process speed ofginkgo and chaff was represented to have 9%/min as same value of both. Thus the pyrolysisprocess of the agricultural by-products was estimated to finish below the temperature of 400℃.
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