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Accurately measurement and efficiently recovery of ionic liquid in energy utilization of microalgae
School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, China.
School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, China.
Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.ORCID-id: 0000-0002-6279-4446
Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.ORCID-id: 0000-0002-5014-3275
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2019 (Engelska)Ingår i: Energy Procedia, Elsevier Ltd , 2019, Vol. 158, s. 1337-1341Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Chlorella vulgais, a kind of micro-alagae, is an attracting feedstock for bioenergy production, such as biodiesel and biogas. But its tough cell wall structure is the main obstacle to efficiently extracting lipids and other biomass. Ionic liquid (IL) can be used to hydrolyze its cell-wall. However, due to its high cost and toxicity, it is important to recover IL as much as possible. Therefore, a method that can accurately measure the content of ILs, is urgently needed. In this work, two common methods that are used to measure the content of ILs: equimolar titration method and ultraviolet absorbance spectra were compared. The results show that equimolar titration method is not available for trace quantity analysis of ionic liquids as the endpoint of titration is hard to be identified at low IL content (<10 mg/L); while UV absorbance spectra method can be used at low IL contents, whereas, it may result in big deviations. To further improve the accuracy of UV absorbance spectra method, concentrating the sample could be a potential solution.

Ort, förlag, år, upplaga, sidor
Elsevier Ltd , 2019. Vol. 158, s. 1337-1341
Nyckelord [en]
Chlorella, Industrial ionic liquid, Lipids extraction, Biomass, Energy utilization, Lipids, Titration, Bioenergy productions, Cell wall structure, Cell walls, Micro-algae, Quantity analysis, Ultraviolet absorbance, UV absorbance spectra, Ionic liquids
Nationell ämneskategori
Energiteknik
Identifikatorer
URN: urn:nbn:se:mdh:diva-43193DOI: 10.1016/j.egypro.2019.01.328ISI: 000471031701108Scopus ID: 2-s2.0-85063873518OAI: oai:DiVA.org:mdh-43193DiVA, id: diva2:1306909
Konferens
10th International Conference on Applied Energy, ICAE 2018, 22 August 2018 through 25 August 2018
Tillgänglig från: 2019-04-25 Skapad: 2019-04-25 Senast uppdaterad: 2019-07-11Bibliografiskt granskad

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Li, HailongSchwede, Sebastian

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