Lignin to liquid fuels and polyols using biomass-derived solvents
US-11268034-B2 · Mar 8, 2022 · US
Transfer hydrogenation of heavy hydrocarbons with hydrogen-donor solvents
US11560519B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11560519-B2 |
| Application number | US-202217654076-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 9, 2022 |
| Priority date | Jul 14, 2017 |
| Publication date | Jan 24, 2023 |
| Grant date | Jan 24, 2023 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Processes for converting the coal-derived heavy-oil fraction of syncrude to polyols are described. The processes involve mixing a feed stream comprising the coal-derived heavy-oil fraction with an alcohol and aqueous sulfuric acid, heating the mixture, reacting the coal-derived heavy-oil fraction with ozone, and reacting the ozonated heavy-oil fraction with glycerin to form the polyol. In some cases, the ozonated heavy-oil fraction can be neutralized before reacting the ozonated heavy-oil fraction with the glycerin.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for making a polyol comprising: mixing a feed stream comprising a coal-derived heavy-oil fraction from syncrude with an alcohol and aqueous sulfuric acid to form a mixture; heating the mixture; reacting the coal-derived heavy-oil fraction in the heated mixture with ozone to form an ozonated heavy-oil fraction; reacting the ozonated heavy-oil fraction with glycerin to form the polyol; and optionally neutralizing the ozonated heavy-oil fraction before reacting the ozonated heavy-oil fraction with the glycerin. 2. The process of claim 1 wherein the alcohol comprises hexanol. 3. The process of claim 1 further comprising: removing heat while reacting the coal-derived heavy-oil fraction in the heated mixture with ozone. 4. The process of claim 1 wherein the ozone is injected into a tank containing the heated mixture. 5. The process of claim 1 wherein the ozone is contacted with the heated mixture in a countercurrent bubble tray column. 6. The process of claim 1 further comprising: diluting the ozone with nitrogen. 7. The process of claim 1 further comprising: removing the alcohol from the polyol. 8. The process of claim 7 wherein the alcohol is removed by flash evaporation. 9. The process of claim 1 wherein the mixture is heated by the coal-derived heavy-oil fraction. 10. A process for making a polyol comprising: mixing a feed stream comprising a coal-derived heavy-oil fraction from syncrude with an alcohol and aqueous sulfuric acid to form a mixture; heating the mixture; reacting the coal-derived heavy-oil fraction in the heated mixture with ozone to form an ozonated heavy-oil fraction; removing heat while reacting the coal-derived heavy-oil fraction in the heated mixture with ozone; neutralizing the ozonated heavy-oil fraction to form a neutralized ozonated heavy-oil fraction; and reacting the neutralized ozonated heavy-oil fraction with glycerin to form the polyol. 11. The process of claim 10 wherein the alcohol comprises hexanol. 12. The process of claim 10 wherein the ozone is injected into a tank containing the heated mixture. 13. The process of claim 10 wherein the ozone is contacted with the heated mixture in a countercurrent bubble tray column. 14. The process of claim 10 further comprising: diluting the ozone with nitrogen. 15. The process of claim 10 further comprising: removing the alcohol from the polyol. 16. The process of claim 15 wherein the alcohol is removed by flash evaporation. 17. The process of claim 10 wherein the mixture is heated by the coal-derived heavy-oil fraction.
Assignees
Inventors
Classifications
by distillation · CPC title
Solvents · CPC title
Hydrogenation of the aromatic hydrocarbons · CPC title
including at least one step of thermal cracking in the absence of hydrogen · CPC title
- C10G1/065Primary
in the presence of a solvent · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11560519B2 cover?
- Processes for converting the coal-derived heavy-oil fraction of syncrude to polyols are described. The processes involve mixing a feed stream comprising the coal-derived heavy-oil fraction with an alcohol and aqueous sulfuric acid, heating the mixture, reacting the coal-derived heavy-oil fraction with ozone, and reacting the ozonated heavy-oil fraction with glycerin to form the polyol. In some …
- Who is the assignee on this patent?
- Battelle Memorial Institute
- What technology area does this patent fall under?
- Primary CPC classification C10G1/065. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 24 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).