Hydrolysis of used ionic liquid catalyst for disposal
AssigneeChevron U.S.A. Inc.
InventorsHye-Kyung Timken, Shawn Stephen Healy, Shawn Shlomo Winter
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Abstract
We provide a process and apparatus for preparing a used catalyst for disposal, comprising: a. hydrolyzing a used ionic liquid catalyst comprising an anhydrous metal halide to produce a hydrolyzed product; and b. separating the hydrolyzed product into a liquid phase and a solid phase; wherein the liquid phase comprises a non-water-reactive aqueous phase and a hydrocarbon phase; and wherein the solid phase comprises a solid portion of the hydrolyzed product, that is not water reactive. A vessel is used for the hydrolyzing and a separator is used for the separating.
Claims29
A process for preparing a used catalyst for safe disposal, comprising:
- a. hydrolyzing a used ionic liquid catalyst comprising an anhydrous metal halide to produce a hydrolyzed product, wherein a hydrogen halide gas is evolved during the hydrolyzing and the hydrogen halide qas is dissolved into a basic solution used for the hydrolyzing and the hydrogen halide qas is neutralized;
- b. separating the hydrolyzed product into a liquid phase and a solid phase;
- wherein the liquid phase comprises a non-water-reactive aqueous phase having a pH of 4 to 10 and a hydrocarbon phase;
- and wherein the solid phase is not water reactive.
(canceled)
An apparatus for preparing a used catalyst for disposal, comprising:
- a. a vessel used to hydrolyze a used ionic liquid catalyst comprising an anhydrous metal halide, to produce a hydrolyzed product;
- and
- b. a separator used to separate a liquid phase and a solid phase from the hydrolyzed product;
- wherein the liquid phase comprises a non-water-reactive aqueous phase and a hydrocarbon phase;
- and wherein the solid phase comprises a solid portion of the hydrolyzed product, that is not water reactive.
(canceled)
Dependencies are inferred from the claim text.