Gasification of biosludge

Details Gasification of biosludge Gasification of biosludge

1998-12-17

2000-05-16

McAvoy, Ellen M.

Fuel and related compositions

Consolidated solids

Consolidation process using specified condition or technique

44598, 44593, C10L 546, C10L 548

Patent

active

060631473

ABSTRACT:
The high intracellular water content contained within the cell walls of the bacterial cells of a dewatered biosludge is reduced by removing the intracellular water in a denaturing operation. This operation comprises heating the biosludge at a temperature sufficient to weaken the bacterial cell walls. The weakened cell walls are then exposed to a reduced pressure sufficient to form vapor within the cell and to thus rupture the weakened cell walls and thereby release the intracellular water in the form of a hot aqueous vapor and/or released intracellular water. The water-reduced concentrated biosludge can then serve as a fuel source in a partial oxidation reaction for the production of synthesis gas.

REFERENCES:
patent: 4396513 (1983-08-01), Haldeman
patent: 4668388 (1987-05-01), Dibble et al.
patent: 4702745 (1987-10-01), Kamei et al.
patent: 5250080 (1993-10-01), Michelena et al.
patent: 5431702 (1995-07-01), Schulz
patent: 5858222 (1999-01-01), Shibata et al.

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