ANDRITZ technologies for dissolving pulp production

Demands for environmentally friendly fiber sources have dramatically increased the interest in utilizing dissolving pulp, particularly in textile processes. ANDRITZ has a cost-effective approach to dissolving pulp production that includes a new continuous auto-hydrolysis cooking process coupled with efficient washers and other proven downstream pulp processing equipment.

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Dissolving pulp fibers in a person's hand

GLOBAL TRENDS IN DISSOLVING PULP - SPECTRUM MAGAZINE DEC 2017

According to Rod Young, RISI’s Chief Economic Advisor, the turnaround of dissolving pulp supply and demand over the last decade has been nothing short of amazing. World demand for dissolving pulp began trending steeply upwards in the early years of the current decade and has continued to grow above the rate of GDP. A lot of the increase in demand is due to substitution for cotton. The current estimate is that dissolving pulp demand will hit 7.6 million tonnes this year.

The key challenges are maintaining high yield and productivity while ensuring consistent pulp quality. ANDRITZ technology for the production of dissolving pulp is based on many years of experience with chemical pulp fiberlines and intensive R&D on high alpha-cellulose dissolving pulp grades.

Our experience with biofuels has further led us to design the system with special features considering the optimal methods for by-product recovery and reutilization.

ANDRITZ has experience integrating all of the existing process areas with this new technology specifically for dissolving pulp production. Experienced ANDRITZ project teams give you support during engineering, planning, erection, and start-up of your dissolving pulp production line. Global and local technical and service support is at-the-ready throughout the life of the equipment.

Dissolving pulp production processes and technologies

A-ConFlex™ flexible continuous kraft & dissolving pulping
Pulp sheet drying, dissolving pulps
Evaporation
Other processes and technologies in common with kraft pulp production

Drying dissolving pulps

ANDRITZ is well equipped to supply turnkey market dissolving pulp drying plants. A market dissolving pulp sheet drying plant usually starts at the high density storage tower directly after the bleaching plant of the fiberline and includes pulp screening/cleaning, dewatering, drying, baling and bale finishing and/or roll finishing.