Liquefaction processes and systems and liquefaction process intermediate compositions
US9388364B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2015 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Jun 12, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/74
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Liquefaction processes are provided that can include: providing a biomass slurry solution having a temperature of at least 300° C. at a pressure of at least 2000 psig; cooling the solution to a temperature of less than 150° C.; and depressurizing the solution to release carbon dioxide from the solution and form at least part of a bio-oil foam. Liquefaction processes are also provided that can include: filtering the biomass slurry to remove particulates; and cooling and depressurizing the filtered solution to form the bio-oil foam. Liquefaction systems are provided that can include: a heated biomass slurry reaction zone maintained above 300° C. and at least 2000 psig and in continuous fluid communication with a flash cooling/depressurization zone maintained below 150° C. and between about 125 psig and about atmospheric pressure. Liquefaction systems are also provided that can include a foam/liquid separation system. Liquefaction process intermediate compositions are provided that can include a bio-oil foam phase separated from an aqueous biomass solids solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.