Rapeseed can be crushed industrially to form rapeseed cake and rape seed oil.
The present data refer to rapeseed crushing in Århus Olie (Denmark) in 2001. The main production processes are following: 1) Rapeseed is delivered to the factory in trucks, 2) rapeseed is screened and impurities are removed, 3) the seeds are rolled and heated 4) oil and cake are separated by pressing, 5) oil remaining in the cake is extracted with hexane and hexane is regained by condensation, 7) rapeseed oil is refined and rapeseed cake and oil are stored for distribution.
Data have been derived from Aarhus Olie's green account 2001.
Production processes related to rapeseed cake and oil are
included. Chemical consumption except hexane has been
municipal wastewater treatment plant are low and have been ignored.
Emissions to municipal wastewater treatment plant are low and have been ignored.
Aarhus olie is a major supplier of rapeseed oil in Denmark and the data are very representative to rapeseed oil production in Denmark.
Exchanges with environment are lower than previously observed by Mortensen et al. (1997). This can be explained by environmental management activities in the factory over the past years.
Mortensen B, Hauschild M, Weidema BP, Nielsen PH, Schmidt og Christensen BH (1997). Livscyklusvurdering af produkter baseret på fornybare råvarer. Instituttet for Produktudvikling. Danmarks Tekniske Universitet.
Århus Olie: Green Accounts 2001 Available in both Danish and English.
Data URL: http://www.lcafood.dk/processes/industry/rapeseedcrushing.html