Importance

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Abstract

A method and system for heating process liquid used in a slurry stream in an alcohol production process. A portion of direct inject steam typically intended for a slurry tank, such as in a dry milling process, can be (re)directed to first effect evaporators to produce a greater steam input than is typical. The additional pounds of steam produces a corresponding additional volume of first effect evap steam that can be captured and directed to an eductor on a front end of the dry milling process. That first effect steam mixes with and further heats incoming process liquid, which now further includes condensed first effect steam. This heated mixture is combined with milled corn to provide a heated slurry stream, which is sent on to a slurry tank and further subjected to direct inject steam, in a smaller weight by volume than is typical, to provide a desired slurry temperature.

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First Claim