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ANDRITZ Lignin Recovery technology for kraft mills

The benefits to installing Lignin Recovery technology in a kraft mill include the ability to debottleneck a recovery boiler and the potential cost savings from substituting a sustainable biofuel for purchased fossil fuels. Lignin is also being utilized as a sustainable, renewable raw material for advanced bioproducts such as composites or as a substitute for phenolic and aromatic compounds, which might create an additional revenue stream for a kraft mill.

Flowsheet of ANDRITZ lignin recovery process

The ANDRITZ Lignin Recovery process


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Recovered lignin cake

A-Recovery+ chemical recovery solution for recovering high-quality lignin from black liquor.

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A-Recovery+ chemical recovery solutions

See the chemical recovery cycle in a new light.

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Recovery boilers

The recovery boiler plays a central role in a modern kraft pulp mill.

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Power generation

Power generation technologies and services – individual components up to complete power islands.

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    New technologies for Lignin Recovery and sulfuric acid production in a kraft pulp mill PDF : 813 KB