Stable aqueous suspensions of slag, fly-ash and char
This patent describes a pumpable aqueous suspension of particulate matter with reduced viscosity and increased resistance to sedimentation and having a particle size in the range of about 37 to 2000 microns as produced by quench cooling and/or scrubbing the hot raw effluent gas stream from the partial oxidation of solid carbonaceous fuel selected from the group consisting of anthracite, bituminous, and lignite coal; particulate carbon; coke from coal; petroleum coke; coal liquefaction solid residues; oil shale; tar sands; asphaltic bitumen; and mixtures thereof. The aqueous suspension comprises about 1.0 to 50.0 weight percent of the particulate matter consisting of a mixture of slag, fly-ash, and char; about 0.2 to 10.0 weight percent basis weight of the particulate matter, of a nonionic or anionic surfactant having a theoretical molecular weight in the range of about 484 to 1980.
- Assignee:
- Texaco Inc., White Plains, NY
- Patent Number(s):
- US 4808194
- OSTI ID:
- 6241617
- Resource Relation:
- Patent File Date: Filed date 26 Nov 1984
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
04 OIL SHALES AND TAR SANDS
02 PETROLEUM
CHARS
WASTE PRODUCT UTILIZATION
FLY ASH
SLAGS
SUSPENSIONS
CHEMICAL COMPOSITION
AQUEOUS SOLUTIONS
CARBON MONOXIDE
CARBONACEOUS MATERIALS
COAL
COKE
COMBUSTION PRODUCTS
COOLING
GASEOUS WASTES
HYDROGEN
MINERAL WASTES
PARTIAL OXIDATION PROCESSES
PARTICLE SIZE
PETROLEUM PRODUCTS
PUMPING
PURIFICATION
QUENCHING
REMOVAL
SCRUBBING
STABILITY
VISCOSITY
AEROSOL WASTES
ASHES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DISPERSIONS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS
MIXTURES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS PRODUCTS
RESIDUES
SIZE
SOLID WASTES
SOLUTIONS
THERMOCHEMICAL PROCESSES
WASTES
010800* - Coal
Lignite
& Peat- Waste Management
040900 - Oil Shales & Tar Sands- Waste management
020800 - Petroleum- Waste Management