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1. (WO2018201241) VENT STACK TEMPERATURE AS A FEEDFORWARD VARIABLE FOR SMELT DISSOLVING TANK TTA CONTROL

Pub. No.:    WO/2018/201241    International Application No.:    PCT/CA2018/050512
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Wed May 02 01:59:59 CEST 2018
IPC: D21C 7/12
D21C 7/16
Applicants: FPINNOVATIONS
Inventors: ALLISON, Bruce James
REN, Wei
DUBORD, Brennan
JOHNSON, Jason
Title: VENT STACK TEMPERATURE AS A FEEDFORWARD VARIABLE FOR SMELT DISSOLVING TANK TTA CONTROL
Abstract:
Methods and systems for controlling operation of a smelt dissolving tank receiving a flow of smelt and having a vent stack in fluid communication are provided. A dissolving liquid is injected into the smelt dissolving tank at a predetermined injection rate. A temperature of a flow of vapour in the vent stack is measured with a sensor. The injection rate of the dissolving liquid is controlled based on the temperature of the flow of vapour.