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논문 기본 정보

자료유형
학술저널
저자정보
Pansuwan Supaporn (Gangneung-Wonju National University) Hoang Vu Ly (Kangwon National University) Seung-Soo Kim (Kangwon National University) Sung Ho Yeom (Gangneung-Wonju National University)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제24권 제2호
발행연도
2019.6
수록면
202 - 210 (9page)

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초록· 키워드

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In order to maximize the utilization of sewage sludge, a waste from wastewater treatment facility, the residual sewage sludge generated after lipid and carbohydrate extraction for biodiesel and bioethanol production was used to produce bio-oil by pyrolysis. Thermogravimetric analysis showed that sludge pyrolysis mainly occurred between 200 and 550°C (with peaks formed around 337.0 and 379.3°C) with the decomposition of the main components (carbohydrate, lipid, and protein). Bio-oil was produced using a micro-tubing reactor, and its yield (wt%, g-bio-oil/g-residual sewage sludge) increased with an increase in the reaction temperature and time. The maximum bio-oil yield of 33.3% was obtained after pyrolysis at 390°C for 5 min, where the largest amount of energy was introduced into the reactor to break the bonds of organic compounds in the sludge. The main components of bio-oil were found to be trans-2-pentenoic acid and 2-methyl-2-pentenoic acid with the highest selectivity of 28.4% and 12.3%, respectively. The kinetic rate constants indicated that the predominant reaction pathway was sewage sludge to bio-oil (0.1054 min<SUP>-1</SUP>), and subsequently to gas (0.0541 min<SUP>-1</SUP>), rather than the direct conversion of sewage sludge to gas (0.0318 min<SUP>-1</SUP>).

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ABSTRACT
1. Introduction
2. Experimental Methods
3. Results and Discussion
4. Conclusions
References

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UCI(KEPA) : I410-ECN-0101-2019-539-000342757