Lipid content of various microalgae Chemical composition of

Lipid content of various microalgae

Chemical composition of selected microalgae

Παραγωγή βιοντίζελ According to the US microalgal species program ASP five groups of microalgae are considered having high priority for biofuel production: • diatoms (Class Bacillariophyceae), • green algae (Class Chlorophyceae), • golden‐brown algae (Class Chrysophyceae), • prymnesiophytes or haptophytes (Class Prymnesiophyceae), and • eustigmatophytes (Class Eustigmatophyceae).

Συνθήκες καλλιέργειας μικροφυκών (Θρεπτικά: Ν, Ρ, . . . ) Είδος Μικροφυκών Ένταση Ακτινοβολίας (μmol/m 2/s) Θερμοκρασία (o. C) p. H Botrycoccus braunii 150 ± 10 25 6, 3 ⁻ 25 7, 5 – 8, 0 300 26 – 27 7, 0– 8, 0 - 20 8, 2 Chlorella vulgaris 76 25 6, 0 Chlorella emersonii 76 25 6, 0 Chlorella minutissima UTEX 2341 50 25 ⁻ ⁻ 28 6, 8 Schizochytrium limacinum Nannochloropis sp. Nitzischia laevis UTEX Chlorella protothecoides UTEX 256 Σ. Δαμήλος, Διατριβή ΔΠΜΣ, 2014

Καταναλώσεις CO 2 και παραγωγή βιομάζας μικροφυκών CO 2 (%) Θερμοκρασία (o. C) Παραγωγικότητα Βιομάζας (g/Lt ημέρα) Ρυθμός δέσμευσης CO 2 (L ημέρα) Chlorococcum littorale 40 30 Ν/Α 1 Chlorella kessleri 18 30 0. 087 0. 163 a Chlorella sp. UK 001 15 35 Ν/Α >1 Chlorella vulgaris 15 ─ Ν/Α 0. 624 Chlorella vulgaris Air 25 0. 04 0. 075 a Chlorella vulgaris Air 25 0. 024 0. 045 a Chlorella sp. 40 42 N/A 1 Dunaliella 3 27 0. 17 0. 313 a 16 -34 20 0. 076 0. 143 Scenedesmus obliquus Air ─ 0. 009 0. 016 Scenedesmus obliquus Air ─ 0. 016 0. 031 Botryococcus braunii ─ 25 -30 1. 1 >1. 0 Scenedesmus obliquus 18 30 0. 14 0. 26 Spirulina sp. 12 30 0. 22 0. 413 a Μικροφύκη Haematococcus pluvialis aΥπολογισμένο βάση της παραγωγής της βιομάζας μέσω της εξίσωσης: Ρυθμός δέσμευσης CO 2 = 1, 88·παραγωγή βιομάζας, η οποία προέρχεται από την τυπική μοριακή σύνθεση της βιομάζας των μικροφυκών, CO 0. 48 H 1. 83 N 0. 11 P 0. 01 Σ. Δαμήλος, Διατριβή ΔΠΜΣ, 2014

Photo Bioreactor (PBR) Wikipedia

Processing microalgae biomass

Large scale algae production process including the additional process steps for the exploitation of the carbohydrates according to the specific approach

Biorefinery combining dual purpose microalgae-bacteria based systems of wastewater and Arthrospira cultivation using anaerobic effluents for the production of biofuels and high-value added products

Two alternative co-product scenarios

Comparison of types of sources for the oil production

Comparison of algal biodiesel with diesel and EN 14214 biodiesel standard

Comparison of algal biodiesel with diesel and EN 14214 biodiesel standard

Τransesterification Οι α’ ύλες περιέχουν τριγλυκερίδια Triglycerides (1) are reacted with an alcohol such as ethanol (2) to give ethyl esters of fatty acids (3) and glycerol (4): Wikipedia

Flow chart of direct transesterification method

Comparison of transesterification technologies