"It is appropriately assumed that the feedstock will be integrated in the business management plan to meet the company’s thermal loads without extra labor costs.2 The company consumes energy through the use of heavy fuel oil. The consumption of heavy fuel oil during the fiscal year 2004 was 400 metric tons, whereas the consumption of the heat energy could be 17.4 X 10^6 MJ. The quantity of fresh husks needed to cover the heat requirement is 930 metric tons. Price of Olive Husks in Greece. A financial comparison of the fuel oil costs and olive husks shows that the market for fossil fuel oil, as of this date, is 254 euros/ton, and the annual fuel oil cost is 101 600 euros, witha preheating cost of 8400 euros. The current price of olive husks in Greece is 4.4-7.0 euros/ton. Because of increased competition and alternative applications (factories using ovens, etc.), the purchase price can be higher. The price of fresh olive husks at a radius up to 75 km is 10-12 euros/ton (cost including transportation). The option to not buy olive husks gives a benefit
of 4100-6510 euros. The comparison shows that the use of the produced fresh olive husk instead of fossil fuel oil gives a reduction of 96.0% in the cost of energy, which is equivalent to 105 600 euros (the cost of the olive husks is 0.0044 euros/kg)..."
The particular process is thermochemical.
The article "Thermochemical Treatment of Solid and Wastewater
Effluents Originating from the Olive Oil Food Industry" is in this month's
Energy and Fuels.
http://pubs.acs.org/cgi-bin/abstract.cgi/enfuem/asap/abs/ef040078r.html