Partial oxidation of ash-containing liquid hydrocarbonaceous and solid carbonaceous
This patent describes a process for the production of gaseous mixtures comprising H/sub 2/ + CO by the partial oxidation of a feedstock comprising a heavy liquid hydrocarbonaceous fuel having a nickel and vanadium-containing ash or petroleum coke having a nickel and vanadium-containing ash, or mixtures thereof, and the feedstock includes a minimum of 0.5 wt.% of sulfur; and the ash includes a minimum of 5.0 wt.% vanadium, a minimum 2.0 wt.% of nickel, and silicon the process comprising: (1) introducing an ash-removal agent into a reaction zone along with the feedstock; wherein the weight ratio of ash-removal agent to ash in the reaction zone in (2) is in the range of about 1.0 - 10.0 to 1.0; (2) reacting the mixture from (1) at a temperature in the range of 1700/sup 0/F to 3000/sup 0/F and above the slag fusion temperature. The metal surfaces of the steel quench ring and tubular heat exchanger that were directly contacted by the entrained molten slag were protected with a metal and metal alloy, and the protective metal was selected from the group of metals consisting of aluminum and titanium and was electrodeposited at high temperature from a electrolytic bath of molten fluorides maintained in an inert atmosphere, and wherein the electrodeposited metal rapidly diffused into and formed an alloy of solid solution with the subsurface metal of the cooling means, herein sticking and buildup of slag upon contacting the cooling means were substantially reduced.
- Assignee:
- Texaco Inc., White Plains, NY
- Patent Number(s):
- US 4788003
- OSTI ID:
- 6337746
- Resource Relation:
- Patent File Date: Filed date 4 May 1987
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
COKE
PARTIAL OXIDATION PROCESSES
PETROLEUM
PETROLEUM PRODUCTS
ASH CONTENT
CARBON MONOXIDE
CHEMICAL COMPOSITION
COAL
DEASHING
GASIFICATION
HIGH PRESSURE
HYDROGEN
MEDIUM PRESSURE
NICKEL
SULFUR CONTENT
VANADIUM
VERY HIGH TEMPERATURE
CARBON COMPOUNDS
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
020400* - Petroleum- Processing
010404 - Coal
Lignite
& Peat- Gasification