Ultrasonic assisted biodiesel production of microalgae by direct transesterification

Ummu Kalsum*, Mahfud Mahfud, Achmad Roesyadi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Citations (Scopus)

Abstract

Microalgae are considered as the third generation source of biofuel and an excellent candidate for biofuel production to replace the fossil energy. The use of ultrasonic in producing biodiesel by direct transesterification of Nannochloropsis occulata using KOH as catalyst and methanol as a solvent was investigated. The following condition were determined as an optimum by experimental evaluates:: 1: 15 microalga to methanol (molar ratio); 3% catalyst concentration at temperature 40°C after 30 minute of ultrasonication. The highest yield of biodiesel produced was 30.3%. The main components of methyl ester from Nannochloropsis occulata were palmitic (C16:0), oleic (C18:1), stearic (C18;0), arahidic (C20:0) and myristic (C14:0). This stated that the application of ultrasounic for direct transesterificaiton of microalgae effectively reduced the reaction time compared to the reported values of conventional heating systems.

Original languageEnglish
Title of host publicationInternational Conference on Chemistry, Chemical Process and Engineering, IC3PE 2017
EditorsIs Fatimah, Gani Purwiandono
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735414914
DOIs
Publication statusPublished - 17 Mar 2017
EventInternational Conference on Chemistry, Chemical Process and Engineering, IC3PE 2017 - Yogyakarta, Indonesia
Duration: 15 Nov 201616 Nov 2016

Publication series

NameAIP Conference Proceedings
Volume1823
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Chemistry, Chemical Process and Engineering, IC3PE 2017
Country/TerritoryIndonesia
CityYogyakarta
Period15/11/1616/11/16

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