Black liquier gasification process operating at low pressures us

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With regeneration – reclamation – reuse – recycling or...

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Details

162 3011, 162 301, 48197R, 48203, D21C 1112

Patent

active

052845508

ABSTRACT:
A black liquor gasification system intended for use as a replacement for a Tomlinson cycle, Chemical Recovery Unit, and which operates at a temperature below the ash melting temperature thereby removing the potential for smelt-water reactions and explosions. The subject black liquor gasification system is based on the use of a circulating fluidized bed operating at atmospheric pressure that produces dry, recoverable salts as well as low calorific gases to be used within the paper-making process.

REFERENCES:
patent: 3867251 (1975-02-01), Holme
patent: 4526760 (1985-07-01), Empie
patent: 4536253 (1985-08-01), Bertelsen
patent: 4823739 (1989-04-01), Marcellin
patent: 4872950 (1989-10-01), Andersson et al.
patent: 4930429 (1990-06-01), Ryham
patent: 4969930 (1990-11-01), Arpalahti

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