Formation of disperse-slurry of coal liquefaction residue

Patent · Tue Mar 11 00:00:00 EST 1986

OSTI ID:5703127

Corbeels, R J; Vasconcellos, S R

This patent describes a process for forming a disperse-slurry in aqueous medium of comminuted particles of a hydrophobic coal liquefaction residue containing phenolic components which are conducive to creaming. This process consists of: contacting the hydrophobic H-coal residue, containing phenolic components which are conducive to creaming, with 0.001-0.1 parts per 100 parts of aqueous medium of a cationic surfactant R/sup 1/R/sup 2/R/sup 3/R/sup 4/N+X- wherein R/sup 1/ is a C/sub 12/-C/sub 20/ hydrocarbon group; each of R/sup 2/, R/sup 3/ and R/sup 4/ is a C/sub 1/-C/sub 6/ lower hydrocarbon group or a poly(oxyalkylene) group having 12-25 repeating units; and X is an inert anion whereby the surfactant is adsorbed onto the particles; and comminuting, in the presence of aqueous medium, the hydrophobic coal liquefaction residue, containing phenolic components which are conducive to creaming, in the presence of the surfactant thereby forming a slurry of comminuted hydrophobic coal liquefaction residue in aqueous medium characterized by decreased creaming decreased wall adhesion, and reduced phase separation; and recovering the slurry of comminuted hydrophobic coal liquefaction 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 4575381
• OSTI ID: 5703127
• Resource Relation: Patent File Date: Filed date 1 Mar 1984
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
H-COAL PROCESS
RESIDUES
WASTE PROCESSING
WASTE PRODUCT UTILIZATION
ADHESION
ADSORPTION
AQUEOUS SOLUTIONS
COAL LIQUEFACTION
COMMINUTION
HYDROCARBONS
PARTICLES
PHENOLS
SLURRIES
SURFACTANTS
AROMATICS
DISPERSIONS
HYDROXY COMPOUNDS
LIQUEFACTION
MANAGEMENT
MIXTURES
ORGANIC COMPOUNDS
PROCESSING
SOLUTIONS
SORPTION
SUSPENSIONS
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
010800* - Coal
Lignite
& Peat- Waste Management
320305 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management