| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0b26d409ea096ccd03781b8d049a034e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E50-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E50-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-127
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L2200-0476
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-026
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11C3-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11C3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11C3-025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-03 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10L1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11C3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11C3-00 |
| filingDate |
2013-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2017-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a55c22c4631f83cb841fad40dcb0fcbb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bf03d6dca548f547cb48f723ed0afb78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_54a7658e13d379b0e049037a233290b6 |
| publicationDate |
2017-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9725397-B2 |
| titleOfInvention |
Production of biodiesel and glycerin from high free fatty acid feedstocks |
| abstract |
A system and method for the conversion of free fatty acids to glycerides and the subsequent conversion of glycerides to glycerin and biodiesel includes the transesterification of a glyceride stream with an alcohol. The fatty acid alkyl esters are separated from the glycerin to produce a first liquid phase containing a fatty acid alkyl ester rich (concentrated) stream and a second liquid phase containing a glycerin rich (concentrated) stream. The fatty acid alkyl ester rich stream is then subjected to distillation, preferably reactive distillation, wherein the stream undergoes both physical separation and chemical reaction. The fatty acid alkyl ester rich stream is then purified to produce a purified biodiesel product and a glyceride rich residue stream. The glycerin rich second liquid phase stream may further be purified to produce a purified glycerin product and a (second) wet alcohol stream. Neutralization of the alkaline stream, formed during the alkali-catalyzed transesterification process, may proceed by the addition of a mineral or an organic acid. |
| priorityDate |
2003-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |