Apparatus for distributing fluffed pulp into a static bed reacto

Details Apparatus for distributing fluffed pulp into a static bed reacto Apparatus for distributing fluffed pulp into a static bed reacto

1998-03-04

2000-04-18

Alvo, Steven

Paper making and fiber liberation

Apparatus

Digester

162236, 162246, 422213, D21C 706

Patent

active

060511095

ABSTRACT:
A process and apparatus for treating and particularly bleaching pulp contacts a pulp with a gaseous reaction medium in a reactor tower. The pulp is fluffed and refined before being added to the pulp bed and then homogeneously permeated with the gaseous reaction medium to produce a uniformly treated pulp. A distribution device is included in the reactor to uniformly distribute the pulp in the reactor and form a homogenous pulp bed having a substantially even upper surface uniform bed depth.

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Perkins Et Al, "Advances In Ozone Bleaching-Paper III", pp. 263-266.
"Importance of Reactor Design in High Consistency Ozone Bleaching", White et al., 79.sup.th Meeting Canadian Pulp and Paper Assoc., Jan. 28, 1993.
"Advances in Ozone Bleaching--Paper III", Perkins et al., pp. 263-266.

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