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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 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:
 [1];  [2]
  1. (Woodland Hills, CA)
  2. (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) OSTI
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}
}

Patent:

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