1 / 16

In cooperation with

Production of algae coupled to anaerobic digestion in a closed vessel system for bio-fuel production. In cooperation with. Introduction. ( only pictures ). Contents. renewable and durable energy Biofuel production Composition of algae Advantages and disadvantages

mohawk
Download Presentation

In cooperation with

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Production of algae coupled to anaerobicdigestionin a closedvessel system forbio-fuelproduction In cooperation with

  2. Introduction • (onlypictures )

  3. Contents • renewable and durable energy • Biofuel production • Composition of algae • Advantages and disadvantages • Cultivation methods • Production process • Algae research • Manipulation of algae • Applications

  4. Renewable and durableenergy • Renewable energy • Inexhaustible sources • Durable energy • Inexhaustible sources • Not detrimental to environment and economy

  5. Biofuelproduction • Obtained from biomass • Divided into three generations • Food crops  conventional fermentation  chemical processes 2. Crops specially farmed  competition with food crops 3. New developments ( + GM )  algae  no competition with food crops

  6. Composition of algae • Eukaryotic photosynthetic organisms • Sunlight  biomass (sugar and lipids) • Nutrients  nitrogen and phosphorus • CO2  natural oil • Rich in oil components  high primary production  saturated fatty acids • Oil levels: 20% - 75%

  7. Advantages and disadvantages • Advantages • Harvested in all seasons • Rich in fats • Grow fast • On land not suitable for agriculture • CO2neutral • Improving quality of waste water

  8. Advantages and disadvantages • Disadvantages • Growth  fat production • Separating oil  expensive  polluting • Growth depends on sunlight • Many nutrients needed + aqueous environment

  9. Cultivation methods • Open system • Disadvantages • Contact withatmosphere evaporation • No stabletemperature • Contamination • Limitedalgae species

  10. Cultivationmethods • Closed systems • Advantage • No evaporation • Stable temperature • No contamination • Higher biomass and efficient accumulation of CO2 • Disadvantages • Expensive • CO2 injection needed

  11. Production process • Biogas • Hydrolisis • Break long polymeres • Acidogenesis • Fermentation with acidogenic bacteria • Methanogenesis • Into methane gas by methane-forming archaea

  12. Productionprocess • Biodiesel • Base catalyzed transesterification of the oil • Extract oil, drying + adding hexane • Distillation pure algaeoil • Mixingwithcatalyst + alcohol • Glycerol and biodiesel

  13. Research • First industry about 1953 • Two closed bag photoreactors • Food production • Past five years • Algae oil production • Replacement for oil • AlgaePARC • Research micro-algae cultivation systems • Seven systems

  14. Manipulation of algae • Genetic modified • higher yield of biomass or lipids • Increasing number of chloroplasts • Modify metabolism • Only accepted in closed systems • Selecting species • Adjusting cultivation techniques

  15. Applications • Algae Food&Fuel • Just been booted (BioSoil, Tendris and Solarix) • Industrial production of micro-algae • Turbid state, open system • 50kg dry mass/day/Ha • Desert regions • Plenty of sunshine • Water unusable for drinking

  16. Thank you for listening Pieter Sas, Elke Knoops, Benjamin Maris and SerpilDirikan MounaTajeddine, Jonathan Wauthier and ChristopheLisbe

More Related