Biodiesel processes in the presence of free fatty acids and biodiesel producer compositions
US7872149B2 · kind B2 · utility
2Cited by
4References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2007 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Jan 14, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Glyceride-containing feed for a base catalyzed transesterification with lower alkanol to make biodiesel is pretreated with glycerin separated during the transesterification to partially convert glycerides with lower alkanol contained in the separated glycerin using base catalyst in the separated glycerin while reducing the free fatty acid and phosphorus compound concentrations in the glyceride-containing feed. Unique producer compositions are provided by the pretreatment processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.