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US 8,212,094 B2Granted
Process for the manufacture of diesel range hydrocarbons
AssigneeNeste Oil Oyj
InventorsJukka Myllyoja, Pekka Aalto, Pekka Savolainen, Veli-Matti Purola, Ville Alopaeus, Johan Grönqvist
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Abstract
The invention relates to a process for the manufacture of diesel range hydrocarbons wherein a feed is hydrotreated in a hydrotreating step and isomerized in an isomerization step, and a feed comprising fresh feed containing more than 5 wt % of free fatty acids and at least one diluting agent is hydrotreated at a reaction temperature of 200-400° C., in a hydrotreating reactor in the presence of catalyst, and the ratio of the diluting agent/fresh feed is 5-30:1.
Claims20
A process for the manufacture of diesel range hydrocarbons comprising:
- combining a fresh feed stream of biological origin and a stream of diluting agent containing hydrocarbons to form a total feed stream,
- introducing the total feed stream to a hydrodeoxygenation step,
- hydrodeoxygenating the total feed, in the hydrodeoxygenating step,
- introducing the hydrodeoxygenated product to an isomerization step, and
- isomerizing the hydrodeoxygenated product in the isomerization step,
- wherein
- the total feed stream contains less than 10 w-ppm alkali and alkaline earth metals, calculated as elemental alkali and alkaline earth metals, less than 10 w-ppm other metals, calculated as elemental metals, and less than 30 w-ppm phosphorous, calculated as elemental phosphorous.
4 more elements
Dependencies are inferred from the claim text.