Method for separating liquid and solid products of liquefaction of coal or like carbonaceous materials

Patent · 18 April 1978

OSTI ID:863057

Malek, John M.

A method of improving the quality of slurry products taken from coal liquefaction reactors comprising subjecting the slurry to treatment with an alkaline compound such as caustic soda in the presence of steam in order to decompose the phenolic and acidic materials present in the slurry, and to also lower the slurry viscosity to allow separation of solid particles by sedimentation.

• Research Organization: Ralph M. Parsons Co., Pasadena, CA (United States)
• DOE Contract Number: AC01-76ET10084
• Assignee: Malek, John M. (Lomita, CA)
• Patent Number(s): 4,085,029
• Application Number: 05/648,108
• OSTI ID: 863057
• Country of Publication: United States
• Language: English

Related Subjects

/208/210/
acidic
alkaline
allow
carbonaceous
carbonaceous material
carbonaceous materials
caustic
caustic soda
coal
coal liquefaction
compound
comprising
comprising subjecting
decompose
improving
liquefaction
liquefaction reactor
liquid
materials
method
particles
phenolic
presence
products
quality
reactors
reactors comprising
sedimentation
separating
separating liquid
separation
slurry
soda
solid
solid particle
solid particles
solid product
solid products
steam
subjecting
treatment
viscosity