SciTransfer
LignEasy · Project

Sulfuric Acid-Free Lignin Recovery System for High-Value Bio-Based Chemical Production

environmentTestedTRL 5

Imagine wood pulp as a sponge where the 'glue' holding it together is lignin. Usually, factories burn this glue for cheap heat because it's hard to extract without using harsh acids. This technology acts like a gentle filter that pulls out high-quality glue without the chemicals, turning waste into a valuable raw material.

By the numbers
100 Mt/a
Scale of wasted bio-based raw material globally
50 000 ton per year
Target capacity for the designed full-scale plant
The business problem

What needed solving

Pulp mills currently burn lignin as a low-grade fuel because existing recovery methods are too chemically intensive. This wastes a massive global resource and creates bottlenecks in the recovery boiler.

The solution

What was built

A patented, sulfuric acid-free lignin recovery system and a pilot-scale demonstration process for producing chemically modifiable lignin.

Audience

Who needs this

Kraft pulp mill ownersBio-resin manufacturersSustainable packaging producersIndustrial chemical companies
Business applications

Who can put this to work

Pulp and Paper
enterprise
Target: Kraft pulp mill operators

If you are a pulp mill operator dealing with recovery boiler bottlenecks and high chemical make-up costs — this project developed a sulfuric acid-free recovery system that debottlenecks the process and eliminates sodium sulphate dumping.

Construction Materials
any
Target: Plywood manufacturers

If you are a plywood manufacturer dealing with a reliance on petroleum-based glues — this project developed a high-quality lignin product that can be used as a phenolic resin for manufacturing.

Specialty Chemicals
mid-size
Target: Bio-based chemical producers

If you are a chemical company dealing with the need for sustainable, modifiable feedstocks — this project developed a scalable lignin recovery process that provides a chemically modifiable biomaterial.

Frequently asked

Quick answers

What is the industrial scale of the planned deployment?

The project aims to design a full-scale plant with a capacity of 50,000 tons per year based on pilot results.

How does this affect the cost of pulp mill operations?

It reduces costs of chemical make-up by eliminating sodium sulphate dumping and helps debottleneck the recovery boiler.

Is the technology protected by intellectual property?

Yes, the project description explicitly mentions that the technology is patented.

How is the technology integrated into existing facilities?

The system is designed to fit any kraft pulp mill and can be integrated into production systems without disrupting chemical balance or productivity.

What is the timeline for the pilot and full-scale design?

The project period runs from 2023-09-01 to 2026-02-28, covering pilot scale demonstration and the design of the full-scale plant.

Consortium

Who built it

The project is led by a single Finnish SME, LignEasy Oy, indicating a lean, agile structure focused on rapid commercialization. With a 100% industry ratio and a total EU contribution of EUR 2,031,050, the project is heavily geared toward industrial application rather than academic research, utilizing external pilot sites like RISE in Sweden for validation.

How to reach the team

Contact LignEasy Oy via their partnership page for integration inquiries.

Next steps

Talk to the team behind this work.

Contact us to match your pulp mill with LignEasy's recovery technology.

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