Project WoodRoll Demonstration

Country Sweden  
Status commissioning  
Raw Material lignocellulosic crops  
Input 1 Unit kg/h  
Input 2 Unit  
Input 3 Unit  
Output 1 Unit MWth  
Output 2 Unit  
Output 3 Unit  
Type TRL 4-5 Pilot  
Total Investment Currency  
Funding Currency  
Project Owner Cortus (2) AB  
Street Nordkalk AB, Nya Hamnvägen  
City Köping  
Input 1 Name woody biomass  
Input 2 Name  
Input 3 Name  
Input 1 Capacity 100  
Input 2 Capacity  
Input 3 Capacity  
Output 1 Name  
Output 2 Name  
Output 3 Name  
Output 1 Capacity 0.5  
Output 2 Capacity  
Output 3 Capacity  
Partners Nordkalk AB, Cortus AB, Torkapparater AB, Saxlund AB, Calderys AB, Siemens AB, Kanthal AB, ÅF AB, Sandvik AB.  
Total Investment  
Total Investment Explanation  
Funding Explanation  
Contact (visible on Website) Rolf Ljunggren ph: +46 70 694 4898 email:  
Related Publications  
Techlology Brief The concept is based on three stages and the thermal integration between these to achive an indirect gasification resulting in a tar-free, MCV gas without using neither air nor oxygen. The pilot plant has been operated stagewise with limited integration. As of late 2015, all the three stages process stages are fully integrated into a pilot plant representing the concept. The wet biomass fuel is first dried using flue gas in the lower temperature range from the combustion of part of the pyrolysis gas. In the pyrolyser, the fuel is decomposed thermally to pyrolysis gas and char, the heat beeing provided by the flue gas from the combustion of the pyrolysis gas in the higher temperature range. The char is milled and injected as a powder into the gasifier by steam. The gasifier operates at very high temperature. The heat required for the gasification of the char is provided indirectly by burning the pyrolysis gas in recuperative burners, transferring heat by radiation to the gasification chamber. In this way, the char is gasified with steam only such that the product gas is free from tar, low in methane and has no dilution by nitrogen such that it reaches an MCV heat content. The gasifier gas is then cooled to generate the steam required in the gasifier. The hot flue gases remaining after the combustion is routed to the pyrolyser and then the dryer for indirect heating of these units.  
Additional Information