Valmet Technologies Oy

Metso Power Oy

Teknologian Tutkimuskeskus Vtt Oy

Fifth Innovation Oy

Tuomo Hilli

Jani Lehto

Markku Raiko

Mikko Anttila

Rami Lampinen

Sampo Ratinen

Ismo Hirvonen

Pekka Tynjaelae

Henrik Romar

Kristin Onarheim

Yrjo Solantausta

Erkki Välimäki

A method for removing hydrogen sulphide ions (HS) from a liquor () of a pulp mill process, the method comprising pumping the liquor () to an injector arrangement () using a pump arrangement () such that the pumping of the liquor () through a jet nozzle () generates suction at a gas inlet (), whereby reagent gas () is mixed with the liquor (), and letting out the treated liquor () from the injector arrangement () to a vessel (). In this way, the liquor () is treated to form at least partly treated liquor (). A corresponding use of an injector arrangement. A system for performing the method.

Method and a system for removing hydrogen sulphide ions (HS) from a liquor of a pulp mill process

A method of treating lignin-based material is provided, comprising the steps of subjecting lignin separated from lingo-cellulosic raw material to hydrothermal carbonization process at an elevated temperature, where carbonized lignin having increased carbon content is obtained, and stabilizing the obtained carbonized lignin under inert atmosphere at a stabilization temperature higher than the temperature of the hydrothermal carbonization process.

Method for treating lignin-based material

Disclosed herein is an apparatus and a method for producing a pyrolysis liquid, wherein the pyrolysis liquid is formed by means of pyrolysis from a raw material by forming, and a pyrolysis reactor, a gaseous pyrolysis product by pyrolysis and condensing it in a condenser into a pyrolysis liquid, and feeding circulation gas into the pyrolysis reactor. The circulation gas is conducted by a liquid ring compressor into the pyrolysis reactor and purified before being conducted into the pyrolysis reactor, and the pyrolysis liquid is used as the liquid layer in the liquid ring compressor.

Method and apparatus for producing a pyrolysis liquid

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Tampere, Finland

Tuomo Hilli