Production of renewable bio-distillate
View Patent ↗A process and system for separating a light fraction, a bio-distillate fraction, and a heavy fraction from a bio-oil, and for producing a renewable distillate including at least in part the bio-distillate fraction and a stabilizing additive, is provided. The process comprises separating bio-oil into light, bio-distillate, and heavy fractions based on their boiling points. At least a portion of the bio-distillate fraction and a stabilizing additive are blended with a petroleum-derived-diesel-range stream, without any prior hydrotreatment, to thereby provide a renewable distillate composition.
1. A renewable distillate composition comprising a petroleum-derived-distillate-range stream in an amount of between about 5 weight percent and about 99 weight percent, a bio-distillate fraction in an amount of at least about 0.5 weight percent and a stabilizing additive having surfactant properties in an amount between about 0.5 and about 25 weight percent, and wherein the bio-distillate fraction comprises greater than about 10 weight percent phenolics.
2. The renewable distillate composition of claim 1 wherein said stabilizing additive comprises a material selected from the group consisting of: 1) a non-ionic block-copolymer having an HLB of at most eight; 2) a non-ionic homopolymer having an HLB of at most eight, 3) a mixture of a non-ionic block-copolymer and a non-ionic homopolymer having an average HLB of at most eight; 4) a non-ionic surfactant having an average HLB of at most eight 5) a FAME, or 6) a combination thereof.
3. The renewable distillate composition of claim 2 wherein the HLB values of said non-ionic block-copolymer, said non-ionic homopolymer, said mixture of said non-ionic block-copolymer and said non-ionic homopolymer, and said non-ionic surfactant are at least two.
4. The renewable distillate composition of claim 2 wherein said stabilizing additive is FAME.
5. The renewable distillate composition of claim 4 wherein said renewable distillate composition comprises said bio-distillate fraction in an amount of at least about 2 weight percent.
6. The renewable distillate composition of claim 4 wherein said renewable distillate composition comprises said bio-distillate fraction in an amount of at least about 5 weight percent.
7. The renewable distillate composition of claim 4 wherein said renewable distillate composition comprises said bio-distillate fraction in an amount of at least about 25 weight percent.
8. The renewable distillate composition of claim 1 wherein said petroleum-derived-distillate-range stream is selected from the group consisting of regular distillate, low sulfur distillate, hydroprocessed light cycle oil, hydrotreated straight run gas oil, ultra low sulfur distillate, refinery processed middle distillate, or mixtures thereof.
9. The renewable distillate composition of claim 1 wherein said petroleum-derived-distillate-range stream comprises hydrocarbons having between 12 and 25 carbon atoms per molecule; and wherein the bio-distillate fraction has an oxygen content less than 15 weight percent.
10. The renewable distillate composition of claim 1 wherein said bio-distillate fraction is separated from a bio-oil, wherein at least about 75 weight percent of said bio-distillate fraction has a boiling point between about 180° C. and about 380° C., and wherein said bio-oil has not previously been subjected to an oxygen-removing hydrotreatment step prior to separation of said bio-distillate fraction.
11. The renewable distillate composition of claim 10 wherein said bio-oil results from the thermochemical conversion of biomass in the presence of a catalyst.
12. The renewable distillate composition of claim 10 wherein said stabilizing additive comprises a material selected from the group consisting of: 1) a non-ionic block-copolymer having an HLB of at most eight; 2) a non-ionic homopolymer having an HLB of at most eight, 3) a mixture of a non-ionic block-copolymer and a non-ionic homopolymer having an average HLB of at most eight; 4) a non-ionic surfactant having an average HLB of at most eight 5) a FAME, or 6) a combination thereof.
13. The renewable distillate composition of claim 12 wherein the HLB values of said non-ionic block-copolymer, said non-ionic homopolymer, said mixture of said non-ionic block-copolymer and said non-ionic homopolymer, and said non-ionic surfactant are at least two.
14. The renewable distillate composition of claim 12 wherein said stabilizing additive is FAME.
15. The renewable distillate composition of claim 14 wherein said renewable distillate composition comprises said bio-distillate fraction in an amount of at least about 2 weight percent.
16. The renewable distillate composition of claim 14 wherein said renewable distillate composition comprises said bio-distillate fraction in an amount of at least about 5 weight percent.
17. The renewable distillate composition of claim 14 wherein said renewable distillate composition comprises said bio-distillate fraction in an amount of at least about 25 weight percent.
18. The renewable distillate composition of claim 10 wherein said petroleum-derived-distillate-range stream is selected from the group consisting of regular distillate, low sulfur distillate, hydroprocessed light cycle oil, hydrotreated straight run gas oil, ultra low sulfur distillate, refinery processed middle distillate, or mixtures thereof.
19. The renewable distillate composition of claim 10 wherein said petroleum-derived-distillate-range stream comprises hydrocarbons having between 12 and 25 carbon atoms per molecule.
20. The renewable distillate composition of claim 10 wherein said petroleum-derived-distillate-range stream comprises hydrocarbons having between 12 and 25 carbon atoms per molecule; wherein said bio-distillate fraction is present in said renewable distillate composition in an amount of at least about 25 weight percent; wherein said bio-oil results from the thermochemical conversion of biomass in the presence of a catalyst; and wherein said stabilizing additive having surfactant properties is FAME.