Process for producing hydrocarbon fractions from mixtures of a biological origin
US8608812B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 7, 2007 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | May 7, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process is described for producing hydrocarbon fractions which can be used as diesel fuel or as components of diesel fuel, starting from a mixture of a biological origin containing esters of fatty acids possibly with amounts of free fatty acids, which comprises the following steps: 1) hydrodeoxygenation of the mixture of a biological origin; 2) hydroisomerization of the mixture resulting from step (1), after possible purification treatment, said hydroisomerization being effected in the presence of a catalytic system which comprises: a) a carrier of acid nature comprising a completely amorphous micro-mesoporous silico-alumina having a SiO2/Al2O3 molar ratio ranging from 30 to 500, a surface area greater than 500 m2/g, a pore volume ranging from 0.3 to 1.3 ml/g, an average pore diameter lower than 40 Å, b) a metallic component containing one or more metals of group VIII, possibly mixed with one or more metals of group VIB.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.