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Processanpassade biobaserade sortiment genom nyutveckling av ångexplosionsprocessen

Reference number
Coordinator Sveriges Lantbruksuniversitet - Institutionen för skogliga biomaterial och teknologi
Funding from Vinnova SEK 1 496 000
Project duration February 2018 - August 2022
Status Ongoing
Venture 2017-04419-en
Call BioInnovation - Research studies within Treesearch

Purpose and goal

This project combines mechanical and chemical pretreatment, steam explosion, cyclone drying, and pelleting for the development of a concept that 1) reduces the content of process disruptive and inhibitory substances, 2) creates a process-adapted, activated product with improved yield, and 3) produces a well-defined assortment with good physical properties for the process industry . The bearing idea is to develop quality assured assortments with tailor made properties for the chemical industry, which makes it beneficial for the customer to choose a sustainable alternative.

Expected results and effects

1) Development of a combined steam explosion and cyclone treatment that reduces the content of inorganic components in softwood bark assortments. 2) Further development of a pretreatment method for steam explosion which decreases the repolymerization of lignin. 3) Preparation of a near-to-market pelletized product with process-adapted properties for enzymatic hydrolysis.

Planned approach and implementation

The project consists of empirical studies, in lab and pilot scale, within a processing chain that aims to produce a customized feedstock for enzymatic hydrolysis from bark. The following specific steps are included: 1. Reduction of inorganic content in bark by steam explosion and cyclone drying 2. Chemical pretreatment for reduced repolymerization of lignin during steam explosion 3. Evaluation pretreatment effects on the feedstock compaction process 4. Development of an industrially applicable concept of semi-manufactured pellets as feedstock for enzymatic hydrolysis.

The project description has been provided by the project members themselves and the text has not been looked at by our editors.

Last updated 12 May 2021

Reference number 2017-05408

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