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• Biodiesel Technologies and Plant Design (PowerPoint Presentation)
• Biodiesel: Technology, Economics and Politics (PDF)
• In search of a greener biodiesel (PDF)
• Supercritical Water - A Review, Report, and Colletion of Thoughts (PDF) ¹

^{1: Supercritical water is used in upgrading low rank coals such as lignite, wet oxidation of wastes and for treating sewage sludge among other applications. The report here from 1992 presents a speculation for the molecular structure of SC water that explains its low polarity and solvency for hydrophobic materials and perhaps its peculiar acid-base properties as well. I call it Kekulé's vision which is a conceit I admit. Certain spectroscopic analysis since 1992 has suggested a model where SC water does consist of trimer and tetramer clusters of water but these more tree-like than ring-like . Nevertheless I like the ring model. Perhaps there are conditions where rings are formed in greater abundance. We shall see.}

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