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Method for polymerizing and upgrading biomass pyrolysis oil
US2025250494A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025250494-A1 |
| Application number | US-202418658586-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 8, 2024 |
| Priority date | Feb 6, 2024 |
| Publication date | Aug 7, 2025 |
| Grant date | — |
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Abstract
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Disclosed herein is a method of polymerizing and upgrading biomass pyrolysis oil. The method includes the steps of: obtaining a hydrogenation reaction product by adding biomass pyrolysis oil to a first-stage catalyst containing a transition metal supported on carbon; obtaining a first hydrodeoxygenation reaction product by adding the hydrogenation reaction product to a second-stage catalyst containing nickel and iron supported on a metal oxide; obtaining a polymerization reaction product by adding the first hydrodeoxygenation reaction product to a third-stage catalyst containing zeolite; and obtaining a second hydrodeoxygenation reaction product by adding the polymerization reaction product to a fourth-stage catalyst containing a transition metal supported on tungstate zirconia.
First claim
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What is claimed is: 1 . A method for polymerizing and upgrading biomass pyrolysis oil, the method comprising the steps of: obtaining a hydrogenation reaction product by adding biomass pyrolysis oil to a first-stage catalyst comprising a transition metal supported on carbon; obtaining a first hydrodeoxygenation reaction product by adding the hydrogenation reaction product to a second-stage catalyst comprising nickel and iron supported on a metal oxide; obtaining a polymerization reaction product by adding the first hydrodeoxygenation reaction product to a third-stage catalyst comprising zeolite; and obtaining a second hydrodeoxygenation reaction product by adding the polymerization reaction product to a fourth-stage catalyst comprising a transition metal supported on tungstate zirconia. 2 . The method for polymerizing and upgrading biomass pyrolysis oil according to claim 1 , wherein the transition metal in the first-stage catalyst comprises one or more selected from the group consisting of ruthenium, platinum, palladium, gold, rhodium, iridium, nickel, cobalt, copper, and molybdenum. 3 . The method for polymerizing and upgrading biomass pyrolysis oil according to claim 1 , wherein the hydrogenation reaction is performed at 150 to 220° C. 4 . The method for polymerizing and upgrading biomass pyrolysis oil according to claim 1 , wherein the metal oxide in the second-stage catalyst is titania or zirconia. 5 . The method for polymerizing and upgrading biomass pyrolysis oil according to claim 1 , wherein the first hydrodeoxygenation reaction is performed at 250 to 300° C. 6 . The method for polymerizing and upgrading biomass pyrolysis oil according to claim 1 , wherein the zeolite in the third-stage catalyst is one or more selected from the group consisting of H-Y, H-ZSM-5, and H-β. 7 . The method for polymerizing and upgrading biomass pyrolysis oil according to claim 1 , wherein the polymerization reaction is performed at 160 to 220° C. 8 . The method for polymerizing and upgrading biomass pyrolysis oil according to claim 1 , wherein the transition metal in the fourth-stage catalyst comprises one or more selected from the group consisting of ruthenium, platinum, palladium, gold, rhodium, iridium, nickel, cobalt, copper, and molybdenum. 9 . The method for polymerizing and upgrading biomass pyrolysis oil according to claim 1 , wherein the second hydrodeoxygenation reaction is performed at 200 to 300° C. 10 . The method for polymerizing and upgrading biomass pyrolysis oil according to claim 1 , wherein the method is performed in a continuous reactor. 11 . The method for polymerizing and upgrading biomass pyrolysis oil according to claim 1 , wherein the method produces a polymerized, hydrogenated and hydrodeoxygenated hydrocarbon compound.
Assignees
Inventors
Classifications
using bio-feedstock · CPC title
Catalyst aspects · CPC title
Biomass · CPC title
- C10G69/126Primary
polymerisation, e.g. oligomerisation · CPC title
Temperature · CPC title
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- What does patent US2025250494A1 cover?
- Disclosed herein is a method of polymerizing and upgrading biomass pyrolysis oil. The method includes the steps of: obtaining a hydrogenation reaction product by adding biomass pyrolysis oil to a first-stage catalyst containing a transition metal supported on carbon; obtaining a first hydrodeoxygenation reaction product by adding the hydrogenation reaction product to a second-stage catalyst con…
- Who is the assignee on this patent?
- Korea Inst Sci & Tech
- What technology area does this patent fall under?
- Primary CPC classification C10G69/126. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Aug 07 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).