Method for producing renewable fuel and base oil

Patent metadata

Field	Value
Publication number	US-12522771-B2
Application number	US-202017776902-A
Country	US
Kind code	B2
Filing date	Nov 13, 2020
Priority date	Nov 15, 2019
Publication date	Jan 13, 2026
Grant date	Jan 13, 2026

Abstract

The present disclosure provides a base oil produced from feedstock of biological origin and a method for producing the same. The present disclosure provides base oil blends including the base oil of biological origin and at least one additional base oil.

First claim

The invention claimed is:

1 . A method for combined production of aviation fuel and base oil both of biological origin, the method comprising:
providing feedstock of biological origin containing fatty acids and/or esters of fatty acids; subjecting the feedstock to hydrotreatment and isomerization to obtain a paraffinic hydrocarbon intermediate; fractionating said paraffinic hydrocarbon intermediate into at least two fractions, a lighter fraction fulfilling a specification ASTM D7566-20 Annex A2 for aviation fuel, and a heavier fraction fulfilling the following specifications for a base oil component, containing:
saturates (ASTM D2007) more than 90 wt-%;
sulfur content (ASTM D 1552/D2622/D3120/D4294/D4927) 0.03 wt-% or less;
kinematic viscosity 100° C. (EN ISO 3104/ASTMD445) between 1.3-3.5 mm 2 /s;
kinematic viscosity 40° C. (EN ISO 3104/ASTMD445) between 3.4-13 mm2/s;
pour point (ASTM D 97) less than −24° C.;
flash point (ENISO2719/ASTMD93) more than 120° C.; and
adjusting a production capacity of the lighter fraction and a production capacity of the heavier fraction by selection of process conditions, and/or isomerization process conditions, to produce a yield of the lighter fraction of 60-90 wt-% of a total weight of the formed fractions, and to produce yield of the heavier fraction of 10-40 wt-% of the total weight of the formed fractions; wherein a combined yield of the two fractions is at least 98 wt-% of the paraffinic hydrocarbon intermediate of biological origin.

2 . The method according to claim 1 , comprising:
performing the hydrotreatment, and/or a hydrodeoxygenation, under a hydrogen pressure from 10 to 150 bar, and/or 20-120 bar, and/or 30-100 bar, and at a temperature from 200 to 400° C., and/or 250-380° C., and/or 280-360° C.

3 . The method according to claim 1 , comprising:
performing the hydrotreatment in a presence of one or more catalyst(s) selected from hydrogenation metal on a support, and/or a catalyst selected from a group containing of Pd, Pt, Ni, Co, Mo, Ru, Rh, W and/or any combination thereof, and/or a catalyst containing one or more catalyst(s) selected from CoMo, NiMo, NiW, CoNiMo on a support, and/or an alumina support.

4 . The method according to claim 1 , comprising:
performing the isomerization at a temperature of 200-500° C., and/or 280-370° C., and at a pressure of 10-150 bar, and/or 20-50 bar.

5 . The method according to claim 1 , comprising:
performing the isomerization in a presence of one or more catalyst(s) containing a Group VIII metal on a support, where the support is selected from silica, alumina, clays, titanium oxide, boron oxide, zirconia, used alone or as a mixture, and/or as silica and/or alumina.

6 . The method according to claim 1 , comprising:
subjecting the feedstock, after hydrotreatment and isomerization, to stabilization at a pressure lower than the isomerization pressure.

7 . The method according to claim 6 , comprising:
forming during stabilization, an overhead fraction containing hydrocarbons in a naphtha range (C4-C8); and recycling an amount of 60 wt-% or more, and/or 90 wt-% or more, and/or from 90 to 95 wt-%, of the formed hydrocarbons in the naphtha range at the stabilization column overhead, back to the stabilization.

8 . The base oil component of biological origin produced by the method according to claim 1 .

Assignees

• Neste Oyj

Inventors

• Rantasalo Teemu
• Tuomala Olli
• Neuvonen Arto
• Vilja Jesse

Classifications

• C10M2203/003

  used as base material · CPC title

• C10M109/02

  Reaction products · CPC title

• C10G2400/10

  Lubricating oil · CPC title

• C10G2300/4081

  Recycling aspects · CPC title

• C10G2300/4006

  Temperature · CPC title