RECYCLE OF LEACHATE DURING LIGNOCELLULOSIC CONVERSION PROCESSES
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jun 6, 2013
app pub date -
Aug 11, 2011
filing date -
Aug 11, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention provides a process for producing fermentable sugar or a fermentation product from a lignocellulosic feedstock. The process comprises leaching the lignocellulosic feedstock with an aqueous solution to remove at least potassium salts from the lignocellulosic feedstock and without significantly hydrolyzing hemicellulose and cellulose, thereby producing a leached feedstock and leachate. The leachate is removed from the leachate and concentrated. The leached feedstock is hydrolyzed to produce fermentable sugar, which may be fermented to produce a fermentation broth comprising the fermentation product. The concentrated leachate is recirculated to one or more stages in the process involving alkali addition to adjust the pH of a process stream.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully