Oil extraction from microalgae for biodiesel production

Halim, Ronald; Gladman, Brendan; Danquah, Michael K.; Webley, Paul A.

doi:10.1016/j.biortech.2010.06.136

Cited by 585 publications

(299 citation statements)

References 28 publications

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“…One study found that using isopropanol as a co-solvent (0.068 g of lipid/g of microalgal biomass) increased the lipid yield from Chlorococum sp. by up to 300% more than using pure hexane (0.015 g of lipid/g of microalgal biomass) (Halim et al, 2011). Another study reported that beadbeaten Botryococcus braunii was exposed to five different organic solvents; chloroform/methanol yielded the highest lipid content (0.29 g of lipid/g of microalgal biomass).…”

Section: Organic Solvent Extractionmentioning

confidence: 98%

“…Soxhlet solvent extraction continuously evaporates and condenses the solvent, avoiding the lipid mass transfer limitation and reducing solvent consumption (Wang and Weller, 2006). Soxhlet lipid extraction is more effective than batch extraction (Halim et al, 2011). However, the continuous distillation is an energy-consuming process.…”

Section: Organic Solvent Extractionmentioning

confidence: 99%

“…Moreover, the lipid yield obtained from the wet paste was greater than that obtained from the dried paste (5.8%), indicating that the energy consumption for the drying process can be reduced. The presence of water in the system acts as a natural polar co-solvent, facilitating the extraction of polar lipids and improving the total lipid yield (Halim et al, 2011). However, scCO 2 extraction and organic solvent extraction were compared by extracting lipid from Crypthecodinium cohnii.…”

Section: Supercritical Fluid Extractionmentioning

confidence: 99%

“…Lipid extraction from Chlorococcum sp. using scCO 2 yielded 0.058 g of lipid/g of microalgae with a resident time of 80 min, while that using Soxhlet solvent extraction yielded 0.032 g of lipid/g of microalgae after 5.5 h (Halim et al, 2011). One study showed that 90% of lipids was recovered from Spirulina platensis using scCO 2 at 70 MPa and 55°C for 15 min, while the same amount was obtained using Soxhlet hexane extraction for 6 h (Bahadar and Khan, 2013).…”

Section: Supercritical Fluid Extractionmentioning

confidence: 99%

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A Review: Microalgae and Their Applications in CO2 Capture and Renewable Energy

Klinthong

Yang

Huang

et al. 2015

Aerosol Air Qual. Res.

209

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Fossil fuels, which are recognized as unsustainable sources of energy, are continuously consumed and decreased with increasing fuel demands. Microalgae have great potential as renewable fuel sources because they possess rapid growth rate and the ability to store high-quality lipids and carbohydrates inside their cells for biofuel production. Microalgae can be cultivated on opened or closed systems and require nutrients and CO 2 that may be supplied from wastewater and fossil fuel combustion. In addition, CO 2 capture via photosynthesis to directly fix carbon into microalgae has also attracted the attention of researchers. The conversion of CO 2 into chemical and fuel (energy) products without pollution via this approach is a promising way to not only reduce CO 2 emissions but also generate more economic value. The harvested microalgal biomass can be converted into biofuel products, such as biohydrogen, biodiesel, biomethanol, bioethanol, biobutanol and biohydrocarbons. Thus, microalgal cultivation can contribute to CO 2 fixation and can be a source of biofuels. This article reviews the literature on microalgae that were cultivated using captured CO 2 , technologies related to the production of biofuels from microalgae and the possible commercialization of microalgae-based biofuels to demonstrate the potential of microalgae. In this respect, a number of relevant topics are addressed: the nature of microalgae (e.g., species and composition); CO 2 capture via microalgae; the techniques for microalgal cultivation, harvesting and pretreatment; and the techniques for lipid extraction and biofuel production. The strategies for biofuel commercialization are proposed as well.

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Section: Organic Solvent Extractionmentioning

confidence: 98%

Section: Organic Solvent Extractionmentioning

confidence: 99%

Section: Supercritical Fluid Extractionmentioning

confidence: 99%

Section: Supercritical Fluid Extractionmentioning

confidence: 99%

See 2 more Smart Citations

A Review: Microalgae and Their Applications in CO2 Capture and Renewable Energy

Klinthong

Yang

Huang

et al. 2015

Aerosol Air Qual. Res.

209

View full text Add to dashboard Cite

show abstract

“…Several pre-treatment methods are required to break the algal walls e.g. milling, high pressure homogenisation, ultrasonication and microwave digestion before extracting the oil with solvent (Halim et al, 2011;Ranjith et al, 2015). With a wide range of the lipid polarity, different types of solvent can be used.…”

Section: Microalgae Chlorella Growth and Culture Mediummentioning

confidence: 99%