Abstract
Microalgae has been identified as a potential feedstock for biodiesel production since its cultivation requires less cropland compared to conventional oil crops and the high growth rate of microalgae. Research on microalgae oils often are focused on microalgae oil extraction and biomass harvesting techniques. However, energy intensive and costly lipid extraction methods are the major obstacles hampering microalgae biodiesel commercialisation. Direct biodiesel synthesis avoids such problems as it combines lipid extraction techniques and transesterification into a single step. In this review, the potential of direct biodiesel synthesis from microalgae biomass was comprehensively analysed. The various species of microalgae commonly used as biodiesel feedstock was critically assessed, particularly on high lipid content species. The production of microalgae biodiesel via direct conversion from biomass was systematically discussed, covering major enhancements such as heterogeneous catalysts, the use of ultrasonic and microwave- techniques and supercritical alcohols that focus on the overall improvement of biodiesel production. In addition, this review illustrates the cultivation conditions for biomass growth and lipid productivity improvement, the available harvesting and lipid extraction technologies, as well as the key challenges and future prospect of microalgae biodiesel production. This review serves as a basis for future research on direct biodiesel synthesis from modified microalgae biomass to improve profitability of microalgae biodiesel.
| Original language | English |
|---|---|
| Pages (from-to) | 59-74 |
| Number of pages | 16 |
| Journal | Renewable and Sustainable Energy Reviews |
| Volume | 107 |
| DOIs | |
| Publication status | Published - 2019 Jun 1 |
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All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
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Sustainability of direct biodiesel synthesis from microalgae biomass : A critical review. / Goh, Brandon Han Hoe; Ong, Hwai Chyuan; Cheah, Mei Yee; Chen, Wei-Hsin; Yu, Kai Ling; Mahlia, Teuku Meurah Indra.
In: Renewable and Sustainable Energy Reviews, Vol. 107, 01.06.2019, p. 59-74.Research output: Contribution to journal › Review article
TY - JOUR
T1 - Sustainability of direct biodiesel synthesis from microalgae biomass
T2 - A critical review
AU - Goh, Brandon Han Hoe
AU - Ong, Hwai Chyuan
AU - Cheah, Mei Yee
AU - Chen, Wei-Hsin
AU - Yu, Kai Ling
AU - Mahlia, Teuku Meurah Indra
PY - 2019/6/1
Y1 - 2019/6/1
N2 - Microalgae has been identified as a potential feedstock for biodiesel production since its cultivation requires less cropland compared to conventional oil crops and the high growth rate of microalgae. Research on microalgae oils often are focused on microalgae oil extraction and biomass harvesting techniques. However, energy intensive and costly lipid extraction methods are the major obstacles hampering microalgae biodiesel commercialisation. Direct biodiesel synthesis avoids such problems as it combines lipid extraction techniques and transesterification into a single step. In this review, the potential of direct biodiesel synthesis from microalgae biomass was comprehensively analysed. The various species of microalgae commonly used as biodiesel feedstock was critically assessed, particularly on high lipid content species. The production of microalgae biodiesel via direct conversion from biomass was systematically discussed, covering major enhancements such as heterogeneous catalysts, the use of ultrasonic and microwave- techniques and supercritical alcohols that focus on the overall improvement of biodiesel production. In addition, this review illustrates the cultivation conditions for biomass growth and lipid productivity improvement, the available harvesting and lipid extraction technologies, as well as the key challenges and future prospect of microalgae biodiesel production. This review serves as a basis for future research on direct biodiesel synthesis from modified microalgae biomass to improve profitability of microalgae biodiesel.
AB - Microalgae has been identified as a potential feedstock for biodiesel production since its cultivation requires less cropland compared to conventional oil crops and the high growth rate of microalgae. Research on microalgae oils often are focused on microalgae oil extraction and biomass harvesting techniques. However, energy intensive and costly lipid extraction methods are the major obstacles hampering microalgae biodiesel commercialisation. Direct biodiesel synthesis avoids such problems as it combines lipid extraction techniques and transesterification into a single step. In this review, the potential of direct biodiesel synthesis from microalgae biomass was comprehensively analysed. The various species of microalgae commonly used as biodiesel feedstock was critically assessed, particularly on high lipid content species. The production of microalgae biodiesel via direct conversion from biomass was systematically discussed, covering major enhancements such as heterogeneous catalysts, the use of ultrasonic and microwave- techniques and supercritical alcohols that focus on the overall improvement of biodiesel production. In addition, this review illustrates the cultivation conditions for biomass growth and lipid productivity improvement, the available harvesting and lipid extraction technologies, as well as the key challenges and future prospect of microalgae biodiesel production. This review serves as a basis for future research on direct biodiesel synthesis from modified microalgae biomass to improve profitability of microalgae biodiesel.
UR - http://www.scopus.com/inward/record.url?scp=85062030793&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85062030793&partnerID=8YFLogxK
U2 - 10.1016/j.rser.2019.02.012
DO - 10.1016/j.rser.2019.02.012
M3 - Review article
AN - SCOPUS:85062030793
VL - 107
SP - 59
EP - 74
JO - Renewable and Sustainable Energy Reviews
JF - Renewable and Sustainable Energy Reviews
SN - 1364-0321
ER -