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Processes and systems for dry-milled corn ethanol and corn oil production with improved carbon footprint

机译：具有改善的碳足迹的干磨玉米乙醇和玉米油生产工艺和系统

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摘要

The present invention improves corn dry milling in several ways. Integrated corn biorefinery processes are disclosed which can produce ethanol, edible corn oil, DDGS, solvent-extracted meal, power, and optionally crude corn oil, starting from corn. Some variations employ corn fractionation and edible corn oil recovery using liquid carbon dioxide, avoiding hazardous hydrocarbon-based solvents to produce edible corn oil. Some variations employ integration of gas-fired co-generation into the dry-milled corn ethanol plant to significantly reduce energy usage and carbon footprint associated with the overall process. Counter-current drying is preferably employed to produce a high-quality DDGS product with high protein content, low mycotoxin content, and low residual ethanol content.

机译：本发明以几种方式改进了玉米干磨。公开了整合的玉米生物精炼方法，其可以从玉米开始生产乙醇，食用玉米油，DDGS，溶剂萃取的粗粉，电力以及任选的粗玉米油。一些变体采用玉米分馏和使用液态二氧化碳的食用玉米油回收，避免使用有害的基于烃的溶剂来生产食用玉米油。一些变体将燃气热电联产整合到干磨玉米乙醇工厂中，以显着减少与整个过程相关的能源使用和碳足迹。优选采用逆流干燥来生产具有高蛋白质含量，低霉菌毒素含量和低残留乙醇含量的高质量DDGS产品。

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公开/公告号US9068205B2

专利类型
公开/公告日2015-06-30

原文格式PDF
申请/专利权人 IAN PURTLE;LUCA ZULLO;
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申请/专利号US201213680108
发明设计人 IAN PURTLE;LUCA ZULLO;
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申请日2012-11-18
分类号F26B7;F02C3/28;C12P7/14;F26B23;F26B23/02;F26B25;A23K1/06;C11B1/10;C12P7/06;C11B1/06;
国家 US
入库时间 2022-08-21 15:19:08

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