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, hyrolyzes 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, USA
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- EE0003364
- Assignee:
- Red Shield Acquisition, LLC (Old Town, ME); University of Maine System Board of Trustees (Bangor, ME)
- Patent Number(s):
- 8,608,970
- Application Number:
- 13/187,818
- OSTI ID:
- 1111122
- Country of Publication:
- United States
- Language:
- English
Similar Records
Production of ethanol from pulp mill hardwood and softwood spent sulfite liquors by genetically engineered E. coli
Catalytic valorization of hardwood for enhanced xylose-hydrolysate recovery and cellulose enzymatic efficiency via synergistic effect of Fe3+ and acetic acid