Ca(NO3)2·4H2O

9 wt.% Ca(NO3)2 solution

diluted in water

CaO/n-Al2O3

adding Al2O3

Deposited for 2 hrs

Evaporation

Dried at 120℃ for 12 hrs

Calcined at 550℃ for 6 hrs

Heated at 150 ℃ for 4 hrs

20% CaO/n- Al2O3

Mix with methanol and glycerol(3:30:1)

Calcium diglyceroxide (CDG)

mechanical pressed

Dried an Dehulled

Grinded

Heated to 104-127 ℃

Soybean

Soybean oil

Methanol

Calcium diglyceroxide (CDG)

Soybean oil

Transesterification

Transesterification

Biodiesel-glycerol separation

Washed biodiesel

water

Biodiesel drying

Biodiesel

  • Pressure: 300 psig
  • Stirring rate: 500 rpm
  • Reaction temperature: 150 ℃
  • Methanol/Oil mole ratio: 9:1
  • Catalyst concentration: 3 wt.%

Mixed

Transesterification

process

process

2019-03-28 12:14:54 0 64
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