Recovery of liquid fuel from hydrocarbon-rich microalgae by thermochemical liquefaction

Dote, Yutaka; Sawayama, Shigeki; Inoue, Seiichi; Minowa, Tomoaki; Yokoyama, Shoko

doi:10.1016/0016-2361(94)90211-9

Cited by 311 publications

(149 citation statements)

References 12 publications

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“…*Co-products composition depends on the conversion process used. a [20,[23][24][25][26][27][28], b [11,33,37,[56][57][58][59][60][61][62][63][64][65][66][67], c [11,33,56,59,64], d [27,33,[36][37][38][39][40] Transesterification of Extracted Lipids Figure 2 is a flow chart showing the main processes that are required to produce biodiesel, a form of renewable diesel, from extracted algal lipids, which is the most commonly investigated of the three pathways presented here. After algae are grown in an open pond, photobioreactor, or fermentor (i.e., heterotrophic growth), the algae are harvested from the growth medium.…”

Section: Production Pathwaysmentioning

confidence: 99%

A Framework to Report the Production of Renewable Diesel from Algae

et al. 2010

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Recently, algae have received significant interest as a potential feedstock for renewable diesel (such as biodiesel), and many researchers have attempted to quantify this potential. Some of these attempts are less useful because they have not incorporated specific values of algal lipid content, have not included processing inefficiencies, or omitted processing steps required for renewable diesel production. Furthermore, the associated energy, materials, and costs requirements are sometimes omitted. The accuracy and applicability of these estimates can be improved by using data that are more specific, including all relevant information for renewable diesel production, and by presenting information with more relevant metrics. To determine whether algae are a viable source for renewable diesel, three questions that must be answered are (1) how much renewable diesel can be produced from algae, (2) what is the financial cost of production, and (3) what is the energy ratio of production? To help accurately answer these questions, we propose an analytical framework and associated nomenclature system for characterizing renewable diesel production from algae. The three production pathways discussed in this study are the transesterification of extracted algal lipids, thermochemical conversion of algal biomass, and conversion of secreted algal oils. The nomenclature system is initially presented from a top-level perspective that is applicable to all production pathways for renewable diesel from algae. Then, the nomenclature is expanded to characterize the production of renewable diesel (specifically, biodiesel) from extracted algal lipids in detail (cf. Appendix 2). The analytical framework uses the presented nomenclature system and includes three main principles: using appropriate reporting metrics, using symbolic notation to represent unknown values, and presenting results that are specific to algal species, growth conditions, and product composition.

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Section: Production Pathwaysmentioning

confidence: 99%

A Framework to Report the Production of Renewable Diesel from Algae

et al. 2010

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“…Microalgae are microscopic photosynthetic organisms that distribute in a wide range of environmental conditions, not only aquatic but also terrestrial. It has been reported that using microalgae for biodiesel production has lots of advantages (Ginzburg, 1993;Dote et al, 1994;Hu et al, 2008;Wang et al, 2008). From inherent characteristics of the alga cell, they have much higher growth rate than other biodiesel feedstock.…”

Section: Introductionmentioning

confidence: 99%

Current Status and Outlook in the Application of Microalgae in Biodiesel Production and Environmental Protection

et al. 2014

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“…Algal biofuels have a clear potential for contributing to environmental, social and economic sustainability [8]. Microalgae have a higher photosynthetic efficiency, biomass productivity, and growth rate than do oilseed crops [9][10][11][12][13]. High lipid productivity of fast growing algae is a major requirement for the commercial production of biodiesel.…”

Section: Introductionmentioning

confidence: 99%

Batch Growth of Chlorella Vulgaris CCALA 896 versus Semi-Continuous Regimen for Enhancing Oil-Rich Biomass Productivity

et al. 2014

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Abstract:The aim of this study was to induce lipid accumulation in Chlorella cells by creating stressful growth conditions. Chlorella vulgaris CCALA 896 was grown under various batch growth modes in basal and modified BG-11 and Kolkwitz culture broths, using a continuous light regimen of 150 µE/m 2 /s, at 30 °C . In order to perform the experiments, two indoor photobioreactor shapes were used: a cylindrical glass photobioreactor (C G PBR) with a working volume of 350 mL, and a flat glass photobioreactor (F G PBR) with a working volume of 550 mL. Stress-eliciting conditions, such as nitrogen and phosphorous starvation, were imposed in order to induce lipid accumulation. The results demonstrated that more than 56% of the lipids can be accumulated in Chlorella biomass grown under two-phase batch growth conditions. The highest biomass productivity of 0.30 g/L/d was obtained at the highest nominal dilution rate (0.167 day −1 ) during a semi-continuous regimen, using a modified Kolkwitz medium. During the pH-stress cycles, the amount of lipids did not increase significantly and a flocculation of Chlorella cells was noted. OPEN ACCESSEnergies 2014, 7 3841

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Recovery of liquid fuel from hydrocarbon-rich microalgae by thermochemical liquefaction

Cited by 311 publications

References 12 publications

A Framework to Report the Production of Renewable Diesel from Algae

A Framework to Report the Production of Renewable Diesel from Algae

Current Status and Outlook in the Application of Microalgae in Biodiesel Production and Environmental Protection

Batch Growth of Chlorella Vulgaris CCALA 896 versus Semi-Continuous Regimen for Enhancing Oil-Rich Biomass Productivity

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