title: Concurrent extraction and reaction for the production of biodiesel from wet microalgae.
abstract: This work addresses a reliable in situ transesterification process which integrates lipid extraction from wet microalgae, and its conversion to biodiesel, with a yield higher than 90 wt.%. This process enables single-step production of biodiesel from microalgae by mixing wet microalgal cells with solvent, methanol, and acid catalyst; and then heating them in one pot. The effects of reaction parameters such as reaction temperature, wet cell weight, reaction time, and catalyst volume on the conversion yield are investigated. This simultaneous extraction and transesterification of wet microalgae may enable a significant reduction in energy consumption by eliminating the drying process of algal cells and realize the economic production of biodiesel using wet microalgae.
authors.affiliation: Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea.
authors.forename: Hanjin
authors.initials: H
authors.lastname: Im
authors.affiliation: Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea.
authors.forename: HanSol
authors.initials: H
authors.lastname: Lee
authors.affiliation: Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea; Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
authors.forename: Min S
authors.initials: MS
authors.lastname: Park
authors.affiliation: Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea.
authors.forename: Ji-Won
authors.initials: JW
authors.lastname: Yang
authors.affiliation: Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea. Electronic address: jaewlee@kaist.ac.kr.
authors.forename: Jae W
authors.initials: JW
authors.lastname: Lee
mesh_terms: D056804:Biofuels / Q000382:microbiology*; D001709:Biotechnology / Q000379:methods*; D004951:Esterification / Q000187:drug effects; D058086:Microalgae / Q000187:drug effects / Q000378:metabolism*; D012997:Solvents; D014867:Water / Q000494:pharmacology*
chemical_list: D056804:Biofuels; D012997:Solvents; D014867:Water
keywords: Biodiesel; In situ transesterification; Simultaneous extraction and transesterification; Wet microalgae