| http://www.w3.org/ns/prov#value | - The Clark process has disadvantages, some of which are discussed in the introductory passage of U.S. Pat. No. 4,946,597 which is incorporated herein by reference, notably a requirement for a large net input of thermal and mechanical energy, complex procedures for separating the released oil, and the generation of large quantities of sludge requiring indefinite storage.
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