Chemical recovery process using break up steam control to prevent smelt explosions
Abstract
An improvement in a chemical recovery process 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.
- Inventors:
-
- Woodland Hills, CA
- Eagle Rock, CA
- Issue Date:
- Research Org.:
- CHAMPION INTERNATIONAL CORP
- OSTI Identifier:
- 866658
- Patent Number(s):
- 4761204
- Application Number:
- 07/008,989
- Assignee:
- Rockwell International Corporation (El Segundo, CA)
- Patent Classifications (CPCs):
-
D - TEXTILES D21 - PAPER-MAKING D21C - PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- DOE Contract Number:
- AC05-80CS40341
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- chemical; recovery; process; break; steam; control; prevent; smelt; explosions; improvement; hot; liquid; introduced; dissolving; tank; containing; pool; green; liquor; comprises; preventing; maintaining; selected; superatmospheric; pressure; normal; operation; furnace; sensing; impinging; velocity; stream; whenever; decreases; below; tank containing; normal operation; atmospheric pressure; improvement comprises; recovery process; superatmospheric pressure; hot liquid; steam control; chemical recovery; green liquor; velocity stream; /162/110/422/423/432/
Citation Formats
Kohl, Arthur L, and Stewart, Albert E. Chemical recovery process using break up steam control to prevent smelt explosions. United States: N. p., 1988.
Web.
Kohl, Arthur L, & Stewart, Albert E. Chemical recovery process using break up steam control to prevent smelt explosions. United States.
Kohl, Arthur L, and Stewart, Albert E. Tue .
"Chemical recovery process using break up steam control to prevent smelt explosions". United States. https://www.osti.gov/servlets/purl/866658.
@article{osti_866658,
title = {Chemical recovery process using break up steam control to prevent smelt explosions},
author = {Kohl, Arthur L and Stewart, Albert E},
abstractNote = {An improvement in a chemical recovery process 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {8}
}
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