biorefinery  barrier properties  board chromatogeny chemistry biofuel Eco-conception
biorefinery  barrier properties  board chromatogeny chemistry biofuel Eco-conceptionCHROMATOGENY
Chromatogeny chemistry

  • In order to explore the chromatogeny chemistry potential for industrialists, a pilot of pre-industrial size and associated processes are displayed.

CURWE – European project
Laying biomaterials

  • This project, which is part of the European project FLexPakRenew, aim at improving the characteristics of the base-paper before coating. The materials to be laid are from biomass: modified starches, cellulose nano fibrils, starch nano particles. The originality of the method is curtain coating in wet end. Experimentations to find the proper combination between the barrier and mechanical properties are necessary before switching to full-scale industrial trials.

Extraction of hemicelluloses to improve paper properties

  • Starch goes into paper manufacturing, the purpose of this project is to explore the possibilities for replacing starch by wood hemicellulose extraction, and this substitution increases mechanical strength by 15%.

HEMIVALO/BIOETHANOL – a project of Institut Carnot (Energie du Futur)
Biorefinery, optimisation of the wood hydrolysis process for the production of bio-ethanol

  • The objective of this project is to study the extraction processes of soft wood hemicelluloses, mainly hexoses. More precisely, the works led aim at optimising the extraction step before converting wood in paper pulp by the kraft process. The fraction of hemicelluloses thus recovered is relatively pure and may be fermented in bioethanol. The latter is qualified second generation if compared with first generation biofuels produced today with food raw materials. In this context, it is interesting to note that the lignocellulosic materials (wood included) contain in average 25 to 30% hemicelluloses.

Extraction wood hemicelluloses for chemical upgrading

  • The objective is to study the extraction processes of hardwood hemicelluloses, mainly pentoses, within a context of biorefinery integrated to the pulping process. Unlike hexoses, the pentoses obtained are not easily fermentable in ethanol medium. But provided that to implement a performing and selective extraction process, upgrading purely chemically the monomers and oligomers obtained is possible.
    Presently, the objectives of the studies are to synthesise the green surfactants.

Packaging with new barrier functionalities

  • The current boards with the most performing barrier properties use perfluorinated or complex compounds. In addition to sanitary worries, these packaging items are not easy to recycle and to compost. The purpose of this project is to find alternative solutions by designing these barrier functions using renewable materials. Today, this solution reduces by 65% the use of fossil materials.

Use of recycled fibres in the manufacture of new bio composite materials

  • This project, which federates competences beyond the papermaking industry will enable to develop new products which integrate the recycled fibres. Thus, this use will reduce the volume of paper waste.

Specific properties of cellulose fibres by UV irradiation

  • The purpose of this project is to explore tracks for improving cellulose fibre characteristics during UV irradiation grafting.

NANOGRAFT- European project
Chemical grafting for developing « hydrophobic » papers

  • This project, which is part of the European project FLexPakRenew, aims at conferring hydrophobic barrier properties to papers through chromatogenous grafting by developing associated industrial processes. The reactive agents are vegetable grease by-products with a chemical reaction operating directly on the paper surface, solvent-free, dry and without environmental impact.

Use of plasma for paper / board surface treatment

  • Research for new optimised, low environmental impact surface treatments, is in the core of this project which uses atmospheric plasma treatment. The expected result is the development of new paper barrier properties and functionalities.

SUNPAP – European project
Functionalisation and surface modification of cellulose microfibrils

  • The objective of this project which constitutes a part of a European programme, is the study of the chemical modification of the cellulose nanofibril surface (CNS). More precisely, different directions for cellulose nanofibril surface functionalisation or grafting are explored to produce on large scale basis CNS suspensions presenting rheological properties adapted to their use in the papermaking industry.