Sekab E-Technology Ab

Anders Sjöblom

Torbjörn Van Der Meulen

Elias Sundvall

Stanley Forss

Lars Elfving

Staffan Magnusson

Magnus Hägglund

Adnan Cavka

Magnus HÄGGLUND

The present disclosure generally relates to a pretreatment arrangement () for pretreatment of lignocellulosic biomass comprising a reactor vessel () having an upstream inlet () for receiving biomass and a downstream outlet () for discharging biomass. The pretreatment arrangement () further comprises a gas valve () and gas flow control means ().

Arrangement and method for pretreatment of biomass

A method of pre-treating a cellulosic material before hydrolysis is provided. The method comprises the steps of: impregnating the cellulosic material with a reactive water-soluble gas, such as sulphur dioxide (SO) or carbon dioxide (CO), in an impregnation chamber to obtain impregnated material; and heating the impregnated material to obtain pre-treated material, wherein the cellulosic material is compressed right before or when it is transferred to the impregnation chamber. A corresponding system is also provided.

Pre-treatment of cellulosic material

Growing community of inventors

Bonässund, Sweden

Anders Sjöblom