Biofuels
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Biofuels. ...renewable primary products. Topics. Definition of biofuels Different types of biofuels Types of plants used worldwide Rapeseed oil in Germany Comparison to other fuels Advantages and disadvantages of biofuels. Definition of biofuels. Produced from renewable biomass material

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Biofuels

Biofuels

...renewable primary products


Topics
Topics

  • Definition of biofuels

  • Different types of biofuels

  • Types of plants used worldwide

  • Rapeseed oil in Germany

  • Comparison to other fuels

  • Advantages and disadvantages of biofuels


Definition of biofuels
Definition of biofuels

  • Produced from renewable biomass material

  • Commonly used as an alternative

  • Cleaner fuel source

  • Much cleaner than petrol/diesel alternatives


Different types of biofuels
Different types of biofuels

  • Bioethanol

  • Biodiesel

  • Biogas

  • Biobuthanol


Bioethanol

Bioethanol

Actually ethyl alcohl(also referred to as ethanol)

Identical to drinking alcohol by its composition

Mainly two ways of producing alcohol

1. synthesis of hydrocarbons

2. from biomass

Only 2. approach deserves the terminology „bioethanol“

Chemical Formular : CH3CH2OH



Biodiesel

Biodiesel

Is an ester (more generally methyl ester)

Produced from vegetable oil

Rudolf Diesel originally developed its engine by means of peanut oil




Biodiesel1
Biodiesel

  • Rapeseeds

  • palm fruit

  • Soybeans

  • Sunflower


Bioethanol1

Sugarbeet

Wood

Cereals

Corn

Bioethanol


Other fuels
Other fuels

  • Wood and cellulose

  • Biomass

  • Starch



Advantages

  • climatic change needs reduction of the greenhouse effect

  • less toxic

  • conserves ernergy

  • saving of resources

  • biodegradable

  • economize fossil basic materials

    -> e.g. Oil in place is unlasting


Disadvantages
Disadvantages

  • losing of nature (e.g. cultivation of oilpalms)

  • acidification of fields

  • water pollution by pesticides

  • eutrophication of waterbodies

  • higher price of corn, palm oil etc.

  • reduction of richness in species

  • Eutrophication: (-> excessive plant growth and decay; reductions in water quality, fish, and other animal populations)


Thanks for listening
Thanksforlistening…

Lena, Sabrina,Tanja 


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