Patent · US Active

Thermal treatment of biomass

US8835704B2 · kind B2 · utility

5Cited by

9References

14Claims

0Family size

Assignee

Aston University · GB

Inventors

Andreas Hornung · Kamen, DE
Andreas Apfelbacher · Amberg, DE

Key dates

Filing date	May 14, 2009
Grant date	Sep 16, 2014
Priority date	—
Expiry date	Jan 14, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/145
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A biomass pyrolysis process is provided in which biomass feedstock is mixed with a heat carrier. The heat carrier at least partly comprises char. The ratio by weight of biomass to char is in the range 1:1 to 1:20. The process may be carried out by in a screw/auger pyrolysis reactor in which the solid feedstock components are conveyed along the reactor by a first screw. A second screw conveys at least a portion of the solid products of the biomass pyrolysis back to a heat transfer medium input port. Thus, the heat transfer medium includes char from the biomass pyrolysis.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.