| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_130fd3e4d2a4e5f257332eae943e07ad
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2df1bfcd25f568ac78d934cefaddcc03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4fa0625a5610fa060057bc118843a7e3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fbb68558fdfd9c8cd4a871c5073dfb00 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P2203-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E50-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E50-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P2201-00 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C13K13-007
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C13K13-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C13K1-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C13K13-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C13K1-02 |
| filingDate |
2012-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2018-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_736e8520023f42a8206d75e34c86e0ac
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d99281c4d3c7b856b125e4081326d6cc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_755b40bab603b5bb0e277b3dad53ed36 |
| publicationDate |
2018-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9982317-B2 |
| titleOfInvention |
Systems and methods for acid recycle |
| abstract |
Methods and systems for pretreating lignocellulosic biomass are disclosed. An acid solution between 1% to 1.6% sulfuric acid is applied to the biomass. The biomass is subjected to an elevated temperature to cause the production of xylose, glucose, and furfural. Adjustments to temperature, acid concentration, and time can generate at least 80% or 90% of theoretical xylose, 45% or 50% of the theoretical glucose, and less than 4000 ppm of furfural in the xylose liquor. A portion of the resulting xylose liquor may be separated from the glucan solids. The xylose liquor, still highly acidic, can be recycled to reduce subsequent acid loading requirements. Makeup acid solution is added to the xylose liquor and subsequent biomass to ensure a proper solids to liquids ratio. The biomass is again treated to higher temperatures to yield sugars. The process may be repeated for each subsequent cycle. |
| priorityDate |
2011-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |