Welcome to 

Granit Technologie and Engineering (GRT) SA

engineering and contractor. 

Making use of proprietary "state of the art" technologies, we help our customers to process liquid and solid wastes, while preserving the environment and the health.

Granit Technologie and engineering (GRT) SA
Rue des Ducats 40 B
CH-1350 Orbe, Switzerland

Phone +41 (0)21 318 75 10
Fax +41 (0)21 318 75 11

Construction of a wood torrefaction pilot plant: Orbe, Switzerland

This project concerns the processing of biomasses with generation of pellets, heat and electricity, on the basis of a concept developed by HEIG-VD. The torrefaction process enables to enhance the heat value of woody biomass.

Granit Technologies SA is in charge of the development, engineering, construction, and implementation of the pilot-plant.

The installation, named Torplant, is designed to be able to take in charge different kinds of biomass residues which are nowadays not integrated in recovery chains and which are locally produced, such as: wood waste from logging, green waste from the waste collection centers, waste from some methanisation units...

The produced pellets have a volume reduced from one third in comparison with the classical pellets, which enables to reduce the production and delivery costs. Also the global energy necessary for the process is reduced thanks to a novel way of heating the biomass.

The realisation of the pilot plant of a nominal capacity of 100 kg/h is the first step towards the validation of the operational parameters and so, towards the viability of the industrial application of the concept.

The commissioning of the pilot plant was completed end of August 2016.

Download the information flyer:

Official inauguration on the 9th May 2016 in attendance of State Councillors Jacqueline de Quattro and Anne-Catherine Lyon