Method for co-processing waste rubber and carbonaceous material

Patent · Tue Jan 01 00:00:00 EST 1991

OSTI ID:868047

Farcasiu, Malvina ^[1]; Smith, Charlene M ^[1]

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1. Pittsburgh, PA

In a process for the co-processing of waste rubber and carbonaceous material to form a useful liquid product, the rubber and the carbonaceous material are combined and heated to the depolymerization temperature of the rubber in the presence of a source of hydrogen. The depolymerized rubber acts as a liquefying solvent for the carbonaceous material while a beneficial catalytic effect is obtained from the carbon black released on depolymerization the reinforced rubber. The reaction is carried out at liquefaction conditions of 380.degree.-600.degree. C. and 70-280 atmospheres hydrogen pressure. The resulting liquid is separated from residual solids and further processed such as by distillation or solvent extraction to provide a carbonaceous liquid useful for fuels and other purposes.

• Research Organization: USDOE Pittsburgh Energy Technology Center (PETC), PA (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5061363
• OSTI ID: 868047
• Country of Publication: United States
• Language: English

Related Subjects

method
co-processing
waste
rubber
carbonaceous
material
process
form
useful
liquid
product
combined
heated
depolymerization
temperature
presence
source
hydrogen
depolymerized
liquefying
solvent
beneficial
catalytic
effect
obtained
carbon
black
released
reinforced
reaction
carried
liquefaction
conditions
380
degree
-600
70-280
atmospheres
pressure
resulting
separated
residual
solids
processed
distillation
extraction
provide
fuels
purposes
residual solids
solvent extraction
carbonaceous material
liquid product
carbon black
carbonaceous liquid
hydrogen pressure
resulting liquid
waste rubber
residual solid
liquefaction conditions
solvent extract
processing waste
/208/44/585/