Patent Number: 8,876,969

Title: Process and plant for lowering the residual carbon content of ash

Abstract: A process for lowering the carbon content in ash includes introducing the ash having a carbon content of 1 to 20 wt-% into a reactor where the ash is burnt at a temperature between 700 and 1100.degree. C. Fuel is also introduced into the reactor. During combustion, microwave radiation is fed into the reactor. At least part of the energy released during the combustion is recovered.

Inventors: Anastasijevic; Nikola (Altenstadt, DE), Schneider; Guenter (Lorsch, DE)

Assignee: Outotec Oyj

International Classification: C04B 18/06 (20060101); C04B 18/08 (20060101)

Expiration Date: 2019-11-04 0:00:00