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

Patent · Tue Aug 02 00:00:00 EDT 1988

OSTI ID:866658

Kohl, Arthur L ^[1]; Stewart, Albert E ^[2]

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1. Woodland Hills, CA
2. Eagle Rock, CA

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.

• Research Organization: CHAMPION INTERNATIONAL CORP
• DOE Contract Number: AC05-80CS40341
• Assignee: Rockwell International Corporation (El Segundo, CA)
• Patent Number(s): US 4761204
• Application Number: 07/008,989
• OSTI ID: 866658
• Country of Publication: United States
• Language: English

Related Subjects

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
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