Apparatus for solid waste pyrolysis

Patent · Mon Apr 13 23:00:00 EST 1981

OSTI ID:6259294

Reilly, B B

This disclosure is directed to an economical system for the pyrolysis of municipal solid waste to recover valuable byproducts while reducing the putrefaction and bulk of the residue requiring disposal. Prior to this treatment, the solid waste has been processed to remove most of the metallic components, and shredded, which steps are not part of the invention disclosed. The pyrolysis and by-product recovery technology is complicated by (A) the inherent variability of the chemical and physical characteristics of the shredded solid waste as received at the pyrolysis plant and (B) the relatively low heat value of said waste as thus received. This pyrolysis and product recovery system includes an improved pyrolysis retort indirectly heated principally by combustion of the least desirable by-product, the solid char, in combination with a furnace for the char combustion , a condenser for the pyrolysis vapor including means for gravity separation of the gas, liquid and solid residues entraer. Gases evolved in the shaft are sucked do pyrolysis chamber where they are covered bye chosen metal dihalide vapor is ionized by ; the total economic market potential is 64.4% of the technical potential, or 2072.4 MW, equivalent to 83,621 BPDE; and the lack of an operating history-detailing system reliability, safety, and operating costs-iment and test components; technology testing; analytmperature fatigue stren obtained.

• Assignee: IFI; EDB-81-123079
• Patent Number(s): US 4261795
• OSTI ID: 6259294
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420900* -- Engineering-- Waste Processing Plants & Equipment-- (-1989)
CHEMICAL REACTIONS
CHEMICAL REACTORS
COMMINUTION
DECOMPOSITION
DESIGN
DISTILLATION EQUIPMENT
EQUIPMENT
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
INCINERATORS
MANAGEMENT
MUNICIPAL WASTES
PYROLYSIS
RETORTS
SOLID WASTES
THERMOCHEMICAL PROCESSES
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES