Advanced Pyrolysis Technology
Our technology is based on pyrolysis, a process that converts organic material into biocarbon, pyrolysis-oil and -gas by heating without oxygen. The process is not only sustainable but also resource-efficient, as we maximize the value from each biomass particle.
Our goal is to have large scale production by 2030, reaching a production capacity of 150,000 tons of high quality BioCarbon. Our present pilot plant with three different sizes of reactors, makes it possible to make small trials, up to production of larger volumes for industrial trials.
Our production facilities
Our demonstration plant is being used by national and international R&D projects.
Several of our R&D projects are in cooperation with the industry and universities in Europe.
Production capacity will be expanded with several new facilities to reach a capacity by 2030 of 150 000 tonnes of BioCarbon/year.
Our production plant produces HQ BioCarbon products for the metallurgic industry.
Current design capacity is apprx 5 000 tonnes BioCarbon/year and apprx 2 000 tonnes of pyrolysis oil/year.
Our 5 step process secures quality and high carbon content
Feedstock Qualification & Preparation
The choice of residuals as feedstock is of utmost importance for the remaining process steps. Residuals should originate from certified and traceable sources. For the efficacy of the process a low-level humidity is advantageous. We only use residuals from Nordic stemwood, pine or spruce.
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Pre-treatment (alternative by choice)
Dependent upon the type of feedstock or biomass, pre-processing treatment can be required. The level of humidity, particle size and shape defines the need for pre-treatment to be optimised for the remaining steps of pyrolysis. As one alternative, wooden pellets could be used with a homogenous shape and particle size, humidity and traceability.
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Pyrolysis
The biomass is pyrolysed in a heated and inert (oxygen-free) process of approximately 600°C. The quality of the HQ BioCarbon output is controlled by factors such as temperature and residence time for biomass in process. Approximative yield of biomass to HQ BioCarbon is 20-25%.
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Selective Condensation
The process for pyrolysis of biomass emits pyrolysis gas. The approximate biomass-to-gas yield is 60-70%. A selective condensation can be made to output a mix of BioOil and pyrolysis gas. Several post-processing steps can be added to eventually produce e.g. BioMethane (CH4) or Green Hydrogen (H2). All gas can be condensed to BioOil possible to post-process to fuel-additive quality.
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Post-treatment and Packaging
To reduce BioCarbon's high reactivity, there are various means to lower it and make it easier and safer to handle. Envigas has developed several solutions and special routines to secure safe handling and transportation of BioCarbon.
