Use of formaldehyde as a chemical embrittling agent for waste

Patent · Tue May 05 04:00:00 EDT 1981

OSTI ID:5747007

Frankiewicz, T C

The instant invention relates to a method of converting the solid organic fraction of solid waste into a powdered fuel. It comprises heating said solid organic fraction in the presence of formaldehyde 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. Formaldehyde may be added to the solid organic fraction as an aqueous solution, a gas, or solid, as paraformaldehyde. 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 4265636
• OSTI ID: 5747007
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
090400* -- Solid Waste & Wood Fuels-- (-1989)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320604 -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
ALDEHYDES
COMMINUTION
EMBRITTLEMENT
FORMALDEHYDE
FUELS
MANAGEMENT
MUNICIPAL WASTES
ORGANIC COMPOUNDS
ORGANIC WASTES
PROCESSING
PRODUCTION
REFUSE DERIVED FUELS
SOLID WASTES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES