A financial assessment of two alternative cultivation systems and their contributions to algae biofuel economic viability

Richardson, James W.; Johnson, Myriah D.; Zhang, Xuezhi; Zemke, Peter E.; Chen, Wei; Hu, Qiang

doi:10.1016/j.algal.2013.12.003

Cited by 188 publications

(85 citation statements)

References 13 publications

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“…Marine microalgae are commonly grown in sea water supplemented with nitrate and phosphate fertilizers, whereas other microalgae can be cultivated in wastewaters, thus reducing culturing costs and providing wastewater treatment [26]. In commercial scale systems, microalgal culturing represents up to 30% of the total oil production costs [27]. The utilization of wastewater as culture medium can significantly reduce the operational costs associated to the culturing step.…”

Section: Microalgal Production Plant Sitingmentioning

confidence: 99%

Integration of Microalgae-Based Bioenergy Production into a Petrochemical Complex: Techno-Economic Assessment

et al. 2016

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Abstract:The rapid development of modern society has resulted in an increased demand for energy, mainly from fossil fuels. The use of this source of energy has led to the accumulation of carbon dioxide (CO 2 ) in the atmosphere. In this context, microalgae culturing may be an effective solution to reduce the CO 2 concentration in the atmosphere, since these microorganisms can capture CO 2 and, simultaneously, produce bioenergy. This work consists of a techno-economic assessment of a microalgal production facility integrated in a petrochemical complex, in which established infrastructure allows efficient material and energy transport. Seven different scenarios were considered regarding photosynthetic, lipids extraction and anaerobic digestion efficiencies. This analysis has demonstrated six economically viable scenarios able to: (i) reduce CO 2 emissions from a thermoelectric power plant; (ii) treat domestic wastewaters (which were used as culture medium); and (iii) produce lipids and electrical and thermal energy. For a 100-ha facility, considering a photosynthetic efficiency of 3%, a lipids extraction efficiency of 75% and an anaerobic digestion efficiency of 45% (scenario 3), an economically viable process was obtained (net present value of 22.6 million euros), being effective in both CO 2 removal (accounting for 1.1ˆ10 4 t per year) and energy production (annual energy produced was 1.6ˆ10 7 kWh and annual lipids productivity was 1.9ˆ10 3 m 3 ).

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Section: Microalgal Production Plant Sitingmentioning

confidence: 99%

Integration of Microalgae-Based Bioenergy Production into a Petrochemical Complex: Techno-Economic Assessment

et al. 2016

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“…This marine strain requires a sea salt concentration of 3.5% in the culture media. To obtain 1 kg of biomass, at least 2080 kg water is required for cultivation in an open pond [10]. Such a huge demand for water and sea salt decreases the economic feasibility of large-scale inland cultivation of N. oceanica unless the culture media can be recycled.…”

Section: Introductionmentioning

confidence: 99%

Recycling Nannochloropsis oceanica culture media and growth inhibitors characterization

Zhang

Wang

et al. 2016

Algal Research

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“…The lipid productivity of such microalgae is far exceeding the productivity summarized in Nannochloropsis sp. of different scales of culture systems (Richardson et al, 2014). In outdoor cultivation conditions, Chlorella sp.…”

mentioning

confidence: 99%

Sufficient utilization of natural fluctuating light intensity is an effective approach of promoting lipid productivity in oleaginous microalgal cultivation outdoors

Yang

et al. 2015

Bioresource Technology

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A financial assessment of two alternative cultivation systems and their contributions to algae biofuel economic viability

Cited by 188 publications

References 13 publications

Integration of Microalgae-Based Bioenergy Production into a Petrochemical Complex: Techno-Economic Assessment

Integration of Microalgae-Based Bioenergy Production into a Petrochemical Complex: Techno-Economic Assessment

Recycling Nannochloropsis oceanica culture media and growth inhibitors characterization

Sufficient utilization of natural fluctuating light intensity is an effective approach of promoting lipid productivity in oleaginous microalgal cultivation outdoors

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