DYNAMIC BEHAVIOR OF A BROWNSTOCK WASHING SYSTEM

Authors
TURNER PA ROCHE AA MCDONALD JD VANHEININGEN ARP
Citation
Pa. Turner et al., DYNAMIC BEHAVIOR OF A BROWNSTOCK WASHING SYSTEM, Pulp & paper Canada, 94(9), 1993, pp. 37-42
Citations number
14
Categorie Soggetti
Materials Science, Paper & Wood
Journal title
Pulp & paper Canada → ACNP
ISSN journal
03164004
Volume
94
Issue
9
Year of publication
1993
Pages
37 - 42
Database
ISI
SICI code
0316-4004(1993)94:9<37:DBOABW>2.0.ZU;2-I
Abstract
A dynamic model of a countercurrent brownstock washing system was buil t in order to develop and evaluate process control strategies. For a s ingle industrial stage, approximately 90 minutes were required to achi eve 95% of a new steady state following a step-change in the dissolved solids concentration in the feed stream. Response times became very l arge for several washers in series. When the dilution factor was manip ulated, about 75% of the change in the dissolved solids concentration in a washed pulp stream occurred instantaneously.