Coking apparatus and process for oil-containing solids
AssigneeUop LLC
InventorGavin P. Towler
Life of this patent
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Abstract
A process for upgrading unconventional or heavy oils such as, tar sands, shale oil, or bitumen. This process may include a coking scheme in which oil-containing solids, of suitable size, are fed directly into the riser of an FCC unit. Contacting a hot stream of solids causes vaporization and produces a gaseous product stream. The gaseous product may be separated out in a separating vessel and coked or unconverted oil-containing solids may be transferred to a gasifier for combustion at high temperatures to remove the coke and residual oil. Syngas from the gasifier may be converted to hydrogen using a water gas shift reaction. The hydrogen may be used for hydroprocessing.
Claims16
A coking process, comprising:
- grinding oil-containing solids to produce oil-containing solids suitable for introduction into a riser;
- injecting a fluidizing medium into said riser;
- feeding said oil-containing solids suitable for introduction into a riser directly into said riser;
- contacting said directly-fed oil-containing solids with a hot stream of solids;
- cracking a portion of the hydrocarbons from said directly-fed oil-containing solids;
- separating gaseous products from said directly-fed oil-containing solids in a separator vessel;
- transferring coked oil-containing solids into a gasifier;
- introducing a stream of gas comprising oxygen-containing gases into said gasifier;
- and
- recovering syngas from said gasifier.
A coking process, comprising:
- grinding oil-containing solids to produce oil-containing solids suitable for introduction into a riser;
- injecting a fluidizing medium into said riser;
- feeding said oil-containing solids suitable for introduction into a riser directly into said riser;
- contacting said directly-fed oil-containing solids with a hot stream of solids;
- cracking a portion of the hydrocarbons from said directly-fed oil-containing solids;
- separating gaseous products from said directly-fed oil-containing solids in a separator vessel;
- transferring coked oil-containing solids into a gasifier;
- introducing a stream of gas comprising oxygen-containing gases into said gasifier;
- recovering syngas from said gasifier;
- recycling a hot stream of solids from said gasifier to said riser;
- converting said syngas to hydrogen using a water gas shift reaction;
- hydroprocessing a hydrocarbon using said hydrogen;
- and
- wherein the concentration of oil in said oil-containing solids entering said riser is greater than in a hot stream of oil-containing solids exiting said riser.
Dependencies are inferred from the claim text.