140
C. Li et al.
Fig. 5.3 German CIMBRIA SKET GmbH’s large-scale biodiesel production line and factory
building
disadvantage, however, is its demand for a large amount of investment and energy.
At present, some of the European factories that adopt this process have reached an
output of 170 kt/a (Fig. 5.3).
5.2.5 Intermittent Transesterification Process for Biodiesel
Production
Intermittent transesterification process for biodiesel production includes four steps:
transesterification, separation, recycling of methanol, and recycling of glycerol. The
process flow diagram is presented below (Fig. 5.4):
(1) Transesterification
A calculated amount of oils and fats, methanol, and catalyst is added to the reaction
tank. The weight of methanol is 12–14% of that of oils and fats, and catalyst about
0.8%. The reactants are heated with stirring at a pressure of 0.5–0.6 MPa. The duration
of the reaction is 2–3 h after the temperature reaches 160 °C.
(2) Separation
C. Li et al.
Fig. 5.3 German CIMBRIA SKET GmbH’s large-scale biodiesel production line and factory
building
disadvantage, however, is its demand for a large amount of investment and energy.
At present, some of the European factories that adopt this process have reached an
output of 170 kt/a (Fig. 5.3).
5.2.5 Intermittent Transesterification Process for Biodiesel
Production
Intermittent transesterification process for biodiesel production includes four steps:
transesterification, separation, recycling of methanol, and recycling of glycerol. The
process flow diagram is presented below (Fig. 5.4):
(1) Transesterification
A calculated amount of oils and fats, methanol, and catalyst is added to the reaction
tank. The weight of methanol is 12–14% of that of oils and fats, and catalyst about
0.8%. The reactants are heated with stirring at a pressure of 0.5–0.6 MPa. The duration
of the reaction is 2–3 h after the temperature reaches 160 °C.
(2) Separation