NOVELTY - A system for fractionating whole stillage comprises separator to separate whole stillage to solid portion and thin stillage liquid portion; a three phase separator configured to receive and separate thin stillage liquid portion to clarified stillage, oil emulsion and protein paste; a dryer to dry high fiber wet cake to form animal feed product; second dryer to dry protein paste to form a high protein animal feed product; evaporator to condense the clarified stillage to a syrup; and a second separator to separate oil from the oil emulsion.    USE - As a system for fractionating whole stillage, particularly stillage generated from processing a bushel of corn for ethanol to form a high fiber animal feed product and high protein animal feed product and oil composition (Claimed). The oil is used in a wide variety of applications e.g. feed (e.g., animal feed) for biodiesel production (fatty acid methyl esters); in the production of soaps, detergents, wire insulation, industrial lubricants, leather treatments, cutting oils, mining agents for oil well drilling, ink removal, plastic stabilizers, ink, and in rubber production. Other industrial applications include waxes, shampoos, personal hygiene and food emulsifier or additive products.    ADVANTAGE - The system of fractionation generates multiple valuable co-products while reducing the demand for energy over many traditional methods of treatment of stillage. The system and method provide a means to improve the quality and value of stillage by fractionating the stillage into components, each highly valued in their own right. The fractions generated, in addition to being intrinsically valuable, provide an improved water balance for the ethanol production facility, thereby reducing the energy required to process the stillage over traditional evaporation and drying. The system generates relevant quantities of valuable co-products in a manner which ultimately reduces the required fuel spent on evaporation. The process utilizes less fuel thereby reducing pollution generated and reducing operational costs. The composition of the fiber cake, results in less water retention of the product after separation of the thin stillage and washing. As the fiber cake includes less water, there is a reduction in drying costs associated with the production of the high fiber dried distiller grain (HF-DDG) co-product over a more traditional DDG product. As the solid content of the fiber cake may be as high as 40 to 45% solids before drying, as opposed to a wet cake (used to make conventional DDG) which typically includes only about 30 to 35% solids prior to drying.    DETAILED DESCRIPTION - A system for fractionating whole stillage comprises: a separator configured to separate whole stillage to a solid portion and a thin stillage liquid portion, where the solid portion comprises a high fiber wet cake; a three phase separator configured to receive the thin stillage liquid portion and separate the thin stillage liquid portion to a clarified stillage, an oil emulsion and a protein paste; a dryer configured to dry the high fiber wet cake to generate a high fiber animal feed product; a second dryer configured to dry the protein paste to generate a high protein animal feed product; an evaporator configured to condense the clarified stillage to a syrup; and a second separator configured to separate oil from the oil emulsion. INDEPENDENT CLAIMS are included for the following    (1) a method for fractionating stillage involving: separating whole stillage to a solid portion and a thin stillage liquid portion, where the solid portion includes a high fiber wet cake; separating the whole stillage into a clarified stillage, an oil emulsion, and a protein paste; drying the high fiber wet cake to generate a high fiber animal feed product; drying the protein paste to generate a high protein animal feed product; condensing the clarified stillage to generate a syrup; and separating oil from the oil emulsion; and    (2) a high solid syrup product having moisture content of 30 to 40% and comprising (%): protein (greater than about 10); fiber (less than about 1); fat (6 to 10); and ash (5 to 7).