Utilization of Biodiesel By-Products for Biogas Production

Table 5

Methane production potential from rapeseed, rapeseed cake and meal in m³/kg VS [111].

Feed stock	Rapeseed	Rapeseed cake			Rapeseed meal
Portion of extracted oil		60%	70%	75%
Saccharides	0.11	0.16	0.17	0.17	0.20
Lipids	0.43	0.24	0.19	0.16	0.04
Proteins	0.12	0.16	0.17	0.18	0.20
Together	0.66	0.55	0.53	0.51	0.45
Together (kg)	0.47	0.39	0.37	0.36	0.32
Calorific value (MJ)	23.4	19.5	18.6	18.1	15.8