Process for minimizing solids contamination of liquids from coal pyrolysis

Patent · 21 April 1981

OSTI ID:863864

Wickstrom, Gary H.; Knell, Everett W.; Shaw, Benjamin W.; Wang, Yue G.

In a continuous process for recovery of liquid hydrocarbons from a solid carbonaceous material by pyrolysis of the carbonaceous material in the presence of a particulate source of heat, particulate contamination of the liquid hydrocarbons is minimized. This is accomplished by removing fines from the solid carbonaceous material feed stream before pyrolysis, removing fines from the particulate source of heat before combining it with the carbonaceous material to effect pyrolysis of the carbonaceous material, and providing a coarse fraction of reduced fines content of the carbon containing solid residue resulting from the pyrolysis of the carbonaceous material before oxidizing carbon in the carbon containing solid residue to form the particulate source of heat.

• Research Organization: Occidental Petroleum Corporation, Los Angeles, CA (United States)
• Sponsoring Organization: US Energy Research and Development Administration (ERDA)
• DOE Contract Number: AC01-76ET10130
• Assignee: Occidental Petroleum Corporation (Los Angeles, CA)
• Patent Number(s): 4,263,124
• Application Number: 06/045,782
• OSTI ID: 863864
• Country of Publication: United States
• Language: English

Related Subjects

/208/201/
accomplished
carbon
carbon containing
carbonaceous
carbonaceous material
coal
coal pyrolysis
coarse
combining
containing
containing solid
contamination
content
continuous
continuous process
effect
feed
feed stream
fines
form
fraction
heat
hydrocarbons
liquid
liquid hydrocarbon
liquid hydrocarbons
liquids
material
material feed
minimized
minimizing
oxidizing
oxidizing carbon
particulate
particulate contamination
particulate source
presence
process
providing
pyrolysis
recovery
reduced
removing
removing fine
residue
residue resulting
resulting
solid
solid carbon
solid carbonaceous
solid residue
solids
source
stream