Cook water preheat using evaporator vapor heat recovery
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United States of America Patent
Stats
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Dec 15, 2020
Grant Date -
N/A
app pub date -
Mar 14, 2019
filing date -
Mar 28, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
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US Family Size
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Non-US Coverage
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Abstract
Energy efficiency is improved in a grain alcohol production plant (60) by capturing heat energy that otherwise would be lost to the environment when stillage evaporator last effect vapors (22) are condensed to recycle their water content. The low temperature/pressure heat energy of these vapors is efficiently recovered and reused by placing the vapors in direct physical contact (301, 402) with a working fluid (38) to form heated working fluid (54, 66), then using the heated working fluid directly in a process of the plant. In an embodiment, cook water used for the plant fermentation process is preheated by direct contact with stillage evaporator overhead vapor via one or more direct contact heat exchangers (301, 401) and/or a thermocompressor (402).
First Claim
Other Claims data not available
Family
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International Classification(s)
- 2019 Application Filing Year
- C12H Class
- 57 Applications Filed
- 24 Patents Issued To-Date
- 42.11 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- C12H Class
- 75 % this patent is cited more than
- 5 Age
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| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 15, 2028 |
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