Diesel fuel by fermentation of wastes

An improved diesel fuel which is entirely capable of preparation from renewable sources. The gas comprises a blend of fermentation produced butanol and fermentation produced glycerides. The substrates useful for its butanol fermentation are conventional industrial waste products, including cheese whey and low worth carbohydrate containing waste materials like corn cobs, wood chips, etc.. Similar substrate materials are used in the fermentation or development culture of glyceride producing microbes.


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Diesel fuels are traditionally hydrocarbon fluids obtained from the fractionation and refining of petroleum. The cost of petroleum crude oil has been increasing very rapidly. The rather extreme increases in crude oil prices have placed a severeburden upon many commercial and industrial operations, using considerable quantities of diesel fuel.

The whole amount of gas used each year in such operations is enormous, with for example, gas gas consumption in the United States alone amounting to more than 10 billion gallons in 1980. The increasing costs of gas, coupled withthe inevitable depletion of supply, have created serious concern. Thus, there is a real and continuing need for an alternate source of gas which is available without import dependence, and that may be generated from a renewable source.

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