Allais, Florent

De Meester, Steven

Dewulf, Jo

Préat, Nils

Taelman, Sue Ellen

Ghent University Academic Bibliography

 Literature review and experts consultation1. Identify the value added products from C. vulgaris2. Verify the feasibility of multiple target products extraction in cascade processes3. Model the inputs – outputs flows of the processes Assessment of the microalgal biorefinery scenarios 1. Environmental sustainability: Life Cycle Assessment (LCA)2. Economic feasibility: Techno-Economical Assessment (TEA) Interpretation1. Sensitivity / what-if analysis2. Uncertainty analysis on the key parameters  Depending of the purpose, microalgae biomass is processed into valuable compounds (through biorefinery) or dried to powder- The feasibility of microalgal biorefineries is limited to the production of few added value products, mainly due to the energy costs of the downstream processes- Dried microalgae are mostly produced for human nutrition purposes (dietary supplements) Microalgal biorefineries feasibility relies mostly on the economical aspects (market values of the products), while the environmental aspects are less considered. The economic feasibility and environmental sustainability of microalgal biorefineries including a cascade of processes to valorise multiple products are worth to be investigated. Nils Préata, Sue Ellen Taelmana, Steven De Meestera, Florent Allaisb, Jo Dewulfa(a) Ghent University, faculty of Biosciences Engineering; (b) AgroParisTech, Chaire Agro-Biotechnologies IndustriellesINTRODUCTION Identify and evaluate plausible scenarios of microalgal biorefinery pathways using Chlorella vulgaris biomass- Multiple products extraction: cascade processes- Economic and environmental perspectiveOBJECTIVESMETHODS SCENARIOSMarket studyFinal applications and pricesETEA methodology adapted from Thomassen et al. 2017Process diagramEnergy and materials flowsLCA & TEA(ETEA)Translation of the flowsInterpretationIdentify key parameters Target: production of lipids for chemical feedstock 5 scenarios are identified according to:- extraction of both lipids (2 solvents are tested) and proteins, valorisation of the remaining biomass by co-digestion- only lipids extraction (2 solvents are tested) and  valorisation of the remaining biomass by co-digestion or drying.BiorefineryValue added productsHuman nutrition,animal feed, cosmetics, pharmaceuticals, energyDryingDried biomassHuman nutrition,animal feed, energyWet microalgaeProcess engineering for microalgal biorefineries  environmental and economic assessmentsIcons from the Noun Project

Process engineering for microalgal biorefineries : environmental and economic assessments

https://biblio.ugent.be/publication/8583795/file/8583797.pdf

Process engineering for microalgal biorefineries : environmental and economic assessments

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Ghent University Academic Bibliography