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Dry grind ethanol production process and system with front end milling method

A production process and dry grinding technology, applied in biochemical equipment and methods, liquid production bioreactors, biofuels, etc., can solve the problem of not being able to remove fine solid particles

Active Publication Date: 2014-02-19
LEE TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current systems also do not remove fine solids prior to feeding the pellets to the cutting / grinding device
Consequently, the fine solid particles become smaller particles, i.e., too small, creating problems at the back end of the process as discussed above producing very wet cakes and dirty overflows

Method used

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  • Dry grind ethanol production process and system with front end milling method
  • Dry grind ethanol production process and system with front end milling method
  • Dry grind ethanol production process and system with front end milling method

Examples

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Embodiment Construction

[0039] Figures 1 and 2 have been discussed above and represent, respectively, a typical dry grind ethanol production process and flow diagrams of various typical liquefaction processes defining liquefaction steps in the dry grind ethanol production process.

[0040] Figure 3-9B Various embodiments of dry milled ethanol production processes and systems using front-end milling methods are illustrated for improved alcohol, oil and / or protein yields and for the production of pure, more desirable fibers, such as for secondary alcohol production . These processes and systems are discussed in detail below.

[0041] first reference image 3 , which depicts a flow diagram of an embodiment of a dry milled ethanol production process and system using a front-end milling approach for improved alcohol and / or by-product yield (eg, oil and / or protein yield). In the process 100, corn first undergoes a grinding step 102, which involves the use of a hammer mill or the like, to grind the corn ...

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Abstract

A dry grind ethanol production process and system with front end milling method is provided for improving alcohol and / or by-product yields, such as oil and / or protein yields. In one example, the process includes grinding corn kernels into particles then mixing the corn particles with a liquid to produce a slurry including oil, protein, starch, fiber, germ, and grit. Thereafter, the slurry is subjected to a front end milling method, which includes separating the slurry into a solids portion, including fiber, grit, and germ, and a liquid portion, including oil, protein, and starch, then milling the separated solids portion to reduce the size of the germ and grit and release bound starch, oil, and protein from the solids portion. The starch is converted to sugar, and alcohol is produced therefrom then recovered. Also, the fiber can be separated and recovered. Oil and protein may be separated and recovered as well.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 61 / 466,985, filed March 24, 2011, and US Provisional Application No. 61 / 501,041, filed June 24, 2011, which are hereby incorporated by reference in their entirety. technical field [0003] The present invention relates generally to the production of dry milled alcohol and, more particularly, to an improved milling method and system for use in dry milled ethanol plants to increase alcohol and / or by-product yields. Background technique [0004] One alcohol that is receiving a lot of attention today is ethanol. In the United States, most fuel ethanol is produced by either the wet milling process or the dry milling ethanol process. However, virtually any type and quality of grain can be used to produce ethanol, and the feedstock for these processes is usually corn. [0005] Conventional processes for the production of various types of alcohols from grain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12F3/10
CPCC12M21/12Y02E50/17C12M45/02C12P19/02C12P19/14C12P7/10C12P2203/00Y02E50/10C12M45/04C12M45/09C12P7/14C12P2201/00
Inventor 李介英
Owner LEE TECH LLC
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