FUEL FROM PLASTIC

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FUEL FROM PLASTIC
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INTRODUCTION

• Waste plastics are one of the resources for fuel
  production because of its high heat of
  combustion.
• The conversion methods of waste plastics into
  fuel depend on the types of plastics to be
  targeted.

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Common plastics and uses

• A chair made with a polypropylene seat
  -Polypropylene (PP)
• Food containers, appliances, car fenders
  (bumpers), plastic pressure pipe systems.
  -Polystyrene (PS)
• Food packaging.
• -Polyethylene (PE

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Current Situation
Plastic wastes are left on the streets
.or in landfills
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Methods of converting plastic to fuel

• Pyrolysis
• Random depolymerisation

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Pyrolysis

• Pyrolysis refers to the thermal decomposition of
  the matter under an inert gas like nitrogen.
• For the production process of liquid fuel
  plastics are decompose at 450 to 550 C.

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Depolymerisation

• This is reverse of polymerization or
  de-polymerization.
• If such breaking of long polymeric chain or
  scission of bonds occurs randomly, it is called
  Random depolymerisation.

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• Here the polymer degrades to lower molecular
  fragments.
• In the process of conversion of waste plastics
  into fuels, random depolymerisation is carried
  out in a specially designed reactor in the
  absence of oxygen and in the presence of coal and
  certain catalytic additives.
• The maximum reaction temperature is 350C

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Process Flowchart
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CONCLUSION

• Plastic waste recycling is one of the most
  established recycling activities in economically
  developed countries
• In most of the situations, recycling of waste
  plastics is becoming viable in developing
  countries as well, as it generates resources and
  provides jobs.
• Tones of plastic to grams of wastes.

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