Patent · US Active

Method and arrangement for torrefaction with controlled addition of cooling liquid to the torrefied material

US9557105B2 · kind B2 · utility

1Cited by

1References

19Claims

0Family size

Assignee

VALMET AB · SE

Inventor

Peter Björklund · Espoo, FI

Key dates

Filing date	Nov 29, 2011
Grant date	Jan 31, 2017
Priority date	—
Expiry date	Feb 11, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E50/30
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The improved method and arrangement are for cooling torrefied lignocellulosic material. By adding water in controlled amounts to the torrefied material in a grinder at exit from a roaster the entire volume of torrefied material could be cooled down to a temperature well below the critical temperature without increasing the water content of the final product.

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