Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Separation of Limonen from Waste Citrus Peels by Venturi Vacuum Drying and Production of Bioethanol

벤튜리 진공건조에 의한 폐 감귤박으로부터 리모넨 분리 및 바이오 에탄올 생산

  • Seung-Geon Kim (Department of Chemical Engineering, Jeju National University) ;
  • Ho-Won Lee (Department of Chemical Engineering, Jeju National University)
  • 김승건 (제주대학교 화학공학과) ;
  • 이호원 (제주대학교 화학공학과)
  • Received : 2023.12.19
  • Accepted : 2024.01.15
  • Published : 2024.02.10
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Abstract

Limonene was separated from waste citrus peels by a vacuum drying process with a venturi, and bioethanol was produced from dried citrus peels. Vacuum drying using venturi was very effective in removing moisture and limonene compared to hot air drying and natural drying. Citrus peels prepared by venturi vacuum drying were the most suitable for ethanol fermentation. The moisture and limonene content of the citrus peels dried for 15 hours were 17.0% and 3.2%, respectively. By venturi vacuum drying, essential oil containing limonene and floral water were obtained, respectively. The amount of essential oil separated by venturi vacuum drying was 4.21 mL essential oil/kg citrus peel, 79.9% of the separated essential oil was limonene.

벤튜리를 이용한 진공건조 공정에 의해 폐 감귤박으로부터 리모넨을 분리하고 건조된 감귤박을 이용하여 바이오 에탄올을 생산하였다. 벤튜리를 이용한 진공건조가 열풍건조 및 자연건조에 비해 수분 및 리모넨의 제거에 매우 효과적이었으며, 벤튜리 진공건조에 의해 건조된 감귤박이 에탄올 발효에 가장 적절하였다. 벤튜리 진공건조에 의해 15시간 동안 건조된 감귤박의 수분 및 리모넨 함량은 각각 17.0% 및 3.2%이었다. 벤튜리 진공건조에 의해 리모넨을 함유한 정유와 플로럴 워터를 각각 얻을 수 있었으며, 벤튜리 진공건조에 의해 분리된 정유의 양은 4.21 mL/kg 감귤박이었고, 분리된 정유의 79.9%는 리모넨이었다.

Keywords

Acknowledgement

이 논문은 2022학년도 제주대학교 교원성과지원사업에 의하여 연구되었음.

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