Biomass liquefaction process, and fuel oils and chemical materials prepared by the same
US10287506B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2017 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Nov 20, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to the field of biological energy, in particular to a biomass liquefaction process and fuel oil and chemical raw materials prepared by the same. The biomass liquefaction process comprises the following steps: preparing a slurry comprising a first catalyst and a biomass; performing a first hydrogenation reaction by introducing hydrogen to the slurry to obtain a first stage hydrogenation product; performing a second hydrogenation reaction by adding a second catalyst and introducing hydrogen into the first stage hydrogenation product to obtain a second stage hydrogenation product; and subjecting the second stage hydrogenation product to separation operation to obtain a fuel oil and chemical raw material; wherein the first hydrogenation reaction is controlled to have a reaction pressure of 13-25 MPa and a reaction temperature of 200-350° C., and the second hydrogenation reaction is controlled to have a reaction pressure of 13-25 MPa and a reaction temperature of 380-480° C. The present invention provides a biomass liquefaction process with high reaction efficiency and high liquid yield without coke generation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.