I did some research into fiber reinforced plastics recycling in 2004. I looked back through some of the journal articles I reviewed and I think I found some useful information.
The article states that SMC contains large amounts of inorganic material (fiberglass and CaCO3). It lists SMC's caloric value at: 6.7 MJ/kg or 2881 BTU/lb. This particular article also states that this value is low and that incineration is not an appropriate method for disposal. Of course, your client's SMC may have a different ratio of resin to reinforcement and filler.
The journal is called "Fuel" and the article is titled, "Recycling by pyrolysis of thermoset composites: characteristics of the liquid and gaseous fuels obtained." It was published in 2000, vol. 79, pages 897-902 in the journal "Fuel." The authors were A. Torres, I de Marco, B.M. Caballero, M.F. Laresgoiti, et. al.
I hope that helps.
Kyle Bartholomew - MnTAP
There is no waste in Nature
-- Kyle Bartholomew Chemical Engineer Minnesota Technical Assistance Program University of Minnesota 612/624-4633, 800/247-0015 http://www.mntap.umn.edu Helping Minnesota businesses maximize resource efficiency, prevent pollution and reduce costs.