Biomass conversion process
US8137632B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2009 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Apr 5, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process is described including: contacting solid biomass with a first catalyst stream in a first reaction zone operated at a temperature T1 (from about 250 to about 400° C.), for conversion of a portion of the solid biomass and forming a first gaseous product stream; downwardly passing unconverted biomass to a second reaction zone for contact with a second catalyst stream charged to the second reaction zone operated at a temperature T2, for conversion to form a second gaseous product stream and a spent catalyst; burning coke off the spent catalyst in a regenerator to form a regenerated catalyst; charging a portion of the regenerated catalyst to each of the first and second reaction zones, as the first and second catalyst streams, respectively; upwardly passing the second gaseous product stream to the first reaction zone; and removing both first and second gaseous product streams from the first reaction zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.