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Title: Chemical recovery process using break up steam control to prevent smelt explosions

Abstract

An improvement in a chemical recovery process is described in which a hot liquid smelt is introduced into a dissolving tank containing a pool of green liquor. The improvement comprises preventing smelt explosions in the dissolving tank by maintaining a first selected superatmospheric pressure in the tank during normal operation of the furnace; sensing the pressure in the tank; and further impinging a high velocity stream of steam upon the stream of smelt whenever the pressure in the tank decreases below a second selected superatmospheric pressure which is lower than said first pressure. 2 figs.

Inventors:
;
Publication Date:
OSTI Identifier:
7022101
Patent Number(s):
US 4761204; A
Application Number:
PPN: US 7-008989
Assignee:
Rockwell International Corp., El Segundo, CA (United States)
Resource Type:
Patent
Resource Relation:
Patent File Date: 30 Jan 1987
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; SMELTERS; SAFETY ENGINEERING; CHEMICAL EXPLOSIONS; MITIGATION; PRESSURE CONTROL; PRESSURE MEASUREMENT; PRESSURIZATION; PYROMETALLURGY; STEAM INJECTION; CONTROL; ENGINEERING; EXPLOSIONS; EXTRACTIVE METALLURGY; FLUID INJECTION; METALLURGY; 320303* - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Equipment & Processes

Citation Formats

Kohl, A L, and Stewart, A E. Chemical recovery process using break up steam control to prevent smelt explosions. United States: N. p., 1988. Web.
Kohl, A L, & Stewart, A E. Chemical recovery process using break up steam control to prevent smelt explosions. United States.
Kohl, A L, and Stewart, A E. Tue . "Chemical recovery process using break up steam control to prevent smelt explosions". United States.
@article{osti_7022101,
title = {Chemical recovery process using break up steam control to prevent smelt explosions},
author = {Kohl, A L and Stewart, A E},
abstractNote = {An improvement in a chemical recovery process is described in which a hot liquid smelt is introduced into a dissolving tank containing a pool of green liquor. The improvement comprises preventing smelt explosions in the dissolving tank by maintaining a first selected superatmospheric pressure in the tank during normal operation of the furnace; sensing the pressure in the tank; and further impinging a high velocity stream of steam upon the stream of smelt whenever the pressure in the tank decreases below a second selected superatmospheric pressure which is lower than said first pressure. 2 figs.},
doi = {},
url = {https://www.osti.gov/biblio/7022101}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {8}
}