System and method for conditioning a hardwood pulp liquid hydrolysate
A system and method for hardwood pulp liquid hydrolysate conditioning includes a first evaporator receives a hardwood mix extract and outputting a quantity of vapor and extract. A hydrolysis unit receives the extract, hydrolyzes and outputs to a lignin separation device, which separates and recovers a quantity of lignin. A neutralization device receives extract from the lignin separation device and a neutralizing agent, producing a mixture of solid precipitate and a fifth extract. The solid precipitate is removed from the fifth extract. A second evaporator removes a quantity of acid from the fifth extract in a vapor form. This vapor may be recycled to improve total acid recovery or discarded. A desalination device receives the diluted extract, separates out some of the acid and salt and outputs a desalinated solution.
- Research Organization:
- Red Shield Acquisition, LLC, Old Town, ME (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- EE0003364
- Assignee:
- Red Shield Acquisition, LLC (Old Town, ME)
- Patent Number(s):
- 9,068,291
- Application Number:
- 14/079,049
- OSTI ID:
- 1187944
- Resource Relation:
- Patent File Date: 2013 Nov 13
- Country of Publication:
- United States
- Language:
- English
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Fermentation of lignocellulosic hydrolysates. I: inhibition and detoxification
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Technical Economic Evaluation of a Hardwood Biorefinery Using the "Near-Neutral" Hemicellulose Pre-Extraction Process
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journal | June 2008 |
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