Use of aldehydes as embrittling agents for waste

Patent · Tue Nov 03 04:00:00 EST 1981

OSTI ID:5861802

Gabbay, S M

The instant invention relates to a method of converting the solid organic fraction of solid waste into a powdered fuel which comprises heating said solid organic fraction in the presence of an aldehyde having more than one carbon atom, preferably a multifunctional aldehyde such as glyoxal, for a time and at a temperature sufficient to embrittle said solid organic fraction, comminuting said embrittled solid organic fraction to a powder which is less than a predetermined particle size, and recovering said powder. The solid organic fraction may be separated from the solid waste prior to treatment by the process of this invention or alternatively the solid waste can be treated by the method of this invention and the embrittled organic fraction separated therefrom. The aldehyde may be added to the solid organic fraction as an aqueous solution, a gas, or solid. The embrittling process takes place at a temperature of at least 125/sup 0/ C, preferably from 150/sup 0/C To 250/sup 0/C and said embrittled solid organic fraction is preferably comminuted to a predetermined particle size of less than 10 mesh.

• Assignee: Occidental Research Corp
• Patent Number(s): US 4298349
• OSTI ID: 5861802
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
090122* -- Hydrocarbon Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320604 -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
ACETALDEHYDE
ALDEHYDES
COMMINUTION
EMBRITTLEMENT
FUELS
GLYOXAL
HEATING
INERT ATMOSPHERE
MANAGEMENT
MATERIALS RECOVERY
MUNICIPAL WASTES
ORGANIC COMPOUNDS
ORGANIC WASTES
PARTICLE SIZE
PROCESSING
RECOVERY
SIZE
SYNTHESIS
WASTE MANAGEMENT
WASTE PROCESSING
WASTE PRODUCT UTILIZATION
WASTES