Formation of disperse-slurry of H-coal residue

Patent · Tue Mar 11 00:00:00 EST 1986

OSTI ID:5874233

Yaghmaie, F; Vasconcellos, S R

A process is described for forming a disperse-slurry in aqueous medium of 40-400 mesh particles of a hydrophobic H-coal residue containing phenolic components which are conducive to creaming. The process consists of: contacting the hydrophobic H-coal residue, containing phenolic components which are conducive to creaming, with 0.01-1 parts per 100 parts of residue of an alkali metal salt or an amine salt of an alkylbenzene sulfonic acid wherein the alkyl group contains 10-18 carbon atoms whereby the salt is absorbed onto the particles; and comminuting, in the presence of 50-200 parts of aqueous medium per 100 parts of residue, the hydrophobic H-coal residue, containing phenolic components which are conducive to creaming, in the presence of the alkali metal salt or amine salt of the alkylbenzene sulfonic acid wherein the alkyl group contains 10-18 carbon atoms thereby forming a slurry of comminuted hydrophobic H-coal residue in aqueous medium characterized by decreased creaming, enhanced dispersability, decreased wall adhesion, and reduced phase separation; and recovering the slurry of comminuted hydrophobic H-coal residue in aqueous medium characterized by decreased creaming, enhanced dispersability, decreased wall adhesion, and reduced phase separation.

• Assignee: Texaco, Inc., White Plains, NY
• Patent Number(s): US 4575380
• OSTI ID: 5874233
• Resource Relation: Patent File Date: Filed date 22 Apr 1983
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
H-COAL PROCESS
RESIDUES
WASTE PROCESSING
COMMINUTION
DISPERSIONS
ADDITIVES
ADHESION
ALKALI METAL COMPOUNDS
AMINES
AQUEOUS SOLUTIONS
BENZENE
COAL LIQUEFACTION
FUEL SLURRIES
PARTICLES
PHASE TRANSFORMATIONS
PHENOLS
SULFONIC ACIDS
AROMATICS
FUELS
HYDROCARBONS
HYDROXY COMPOUNDS
LIQUEFACTION
MANAGEMENT
MIXTURES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PROCESSING
SLURRIES
SOLUTIONS
SUSPENSIONS
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
010800* - Coal
Lignite
& Peat- Waste Management
010405 - Coal
Lignite
& Peat- Hydrogenation & Liquefaction