Patent ID: 7642394

Claim:
A method for providing solid material substantially free from contact with an organic compound comprising, a) providing to a desorption unit a feed stream of a solid material in contact with at least a known organic compound having a vaporization temperature; b) heating in the desorption unit for a time ranging from approximately 30 to 120 minutes, under anaerobic conditions, the solid material in contact with the known organic compound and vaporizing the known organic compound, thereby desorbing the known organic compound from the solid material by producing a gas comprising the known organic compound, wherein the known organic compound is not chemically modified by heating, and wherein the solid material is substantially free from contact with the known organic compound; c) condensing the gas comprising the known organic compound, thereby producing a liquid comprising the known organic compound; d) optionally, separating the known organic compound in the liquid, from the liquid; and e) collecting the known organic compound to form a substantially chemically uniform organic compound product composition.