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Transcript of Algae Biofuel
Fuel of the Future The of algae biofuels
as the world's predominate energy source are a present-day
ambition scientists are moving towards. This prezi will display some of the these organisms may have in our future.
Types of Fuel Advantages Disadvantages Cultivation Extracting oil from algae Algae: the basics future and development many uses , classified separately from both plants and animals, are among the most versatile organisms in the world. algae Uses of algae include: as a multi-vitamin, high mineral, carb-loaded supplement
as a stabilizer in products and
in centers and facilities
in the production of renewable algae biofuels
and of course.... Basic Properties of algae: can be uni- or multi-cellular
are usually photosynthetic
live in watery enviroments
can range from 0.5 micrometers to 50 meters in size
require mild sunlight
are comprised of carbohydrates, proteins, fats, and nucleic acids
it is the that are used to make fatty acids biodeisel algae can be cultivated in ponds, photobioreactors, deserts, sewage, and in a marine enviroment here are some facts about algae: food milk lotion pollution control water treatment fertilizer however, the primary cultivation areas are open ponds and photobioreactors ponds photobioreactors pros: cons: easy to build
easy to manage
simple 1. inefficient light usage
losses from evaporation
requires large area of land
possibility of contamination
2. pros: cons: photobioreactor: horizontal tubes where algae convert CO2 into sugars which can be processed into oil. more controlled enviroment
less loss of water, CO2, etc.
less space required
technically challanging to manage
high requirements for building and operating there are steps in gathering usable algae for biofuel: 4 1. separation/harvesting
4. oil extraction oil extraction is what is most controversial and most important in this presentation there are two main methods of extraction: mechanical extraction chemical extraction and there are methods of mechanical extraction: 2 expression/expeller press
ultrasonic-assisted extraction there are methods of chemical extraction: 3 hexane solvent method
supercritical fluid extraction
high energy requirements
unfortunately, each method needs improvements: expensive and energy-intensive
safety and health issues mechanical extraction chemical extracton a recently invented, much method that has is called the simpler, efficient, and more effective no chemical or mechanical requirements single-step process algae can be used to produce numerous types of biofuels, including: biodiesel biobutanol methane biogasoline SVO (straight vegetable oil) jet fuel
Renewable Rapid Productivity Biodegradable , Nontoxic Products Applicable in Existing Systems Cleaner Emmisions Expensive Underdeveloped Growth and Extraction Technology Advantages and Disadvantages Final Thoughts Limited Preformance in Present Engine Systems Algae biofuel is a that has great potential for the future. However, needs to be conducted before algae biofuels can be applied on a wide scale. As this technology becomes more sophisticated, algae biofuel will alleviate the world's dependency on nonrenewable energy sources and provide for a and future. breakthrough technology additional research cleaner greener