Chemical and Pulping Ltd

This page describes the major differences between RDH and DDS.

Tank Farm Temperatures for Greater Delignification

The DDS tank farm produces a higher temperature accumulators with better temperature segregation.  The higher temperatures at the beginning of the cooking cycle remove and strip out of the digester substantial amounts of byproducts to allow for a lower alkali charge later in the cooking cycle which thereby producing less fiber damage.  This is also the reason that the DDS is able to cook bamboo with other woods and produce quality fiber.

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