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US 7,501,546 B2Granted
Process for producing a branched hydrocarbon component
AssigneeNeste Oil Oj
InventorsEija Koivusalmi, Juha Moilanen
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Abstract
The invention relates to a process for producing high-quality hydrocarbon base oil of biological origin. The process of the invention comprises alcohol condensation, hydrodeoxygenation, and isomerization steps. Alcohols, preferably fatty alcohols of biological origin are used as the feedstock.
Claims17
Process for producing base oil, characterized in that
- a) feedstock comprising at least one alcohol selected from the group consisting of primary and secondary saturated and unsaturated C1-C40 monohydroxy alcohols, diols, and polyols, is condensed in the presence of a basic catalyst at a temperature ranging from 200 to 300° C. to obtain a condensation product comprising branched monofunctional and branched poly-functional alcohols, respectively,
- b) the condensation product is hydrodeoxygenated in the presence of a hydrodeoxygenation catalyst under a hydrogen pressure ranging from 0.1 to 20 MPa at a temperature ranging from 100 to 500° C. to obtain a saturated hydrocarbon, and then
- c) the non-branched carbon chains of the hydrodeoxygenated product are hydroisomerized in the presesence of an isomerization catalyst under a hydrogen pressure ranging from 0.1 to 20 MPa at a temperature ranging from 100 to 500° C.
- to obtain a base oil, wherein said base oil comprises:
- i) branched hydrocarbons having carbon numbers of at least C18,
- ii) at least 90% by weight of saturated hydrocarbons,
- iii) mononaphthenes not more than 15% by weight
- iv) fused dinaphthenes and polynaphthenes not more than 1% by weight, and
- v) at least 60% by weight of the saturated hydrocarbons are within the carbon number range of no more than 5.
6 more elements
Dependencies are inferred from the claim text.