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US 12,115,506 B2Granted
Catalyst slurry mixing process and system
AssigneeChevron Phillips Chemical Company LP
InventorsJames E. Hein, Scott E. Kufeld
Life of this patent
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Abstract
Disclosed are a process and system for preparing a catalyst slurry. The process can include preparing a catalyst slurry comprising a solid particulate catalyst and a carrier liquid in a catalyst slurry preparation system. The catalyst slurry preparation system can include a mixing vessel, a rotatable impeller system connected to the mixing vessel, and a motor connected to the rotatable impeller system. The rotatable impeller system can include an agitator shaft and a hub connected to the agitator shaft. The hub and at least a portion of the agitator shaft are positioned within the mixing vessel along a longitudinal axis of the mixing vessel, and the hub has at least three blades.
Claims22
A process comprising:
- preparing a first catalyst slurry comprising a solid particulate catalyst and a carrier liquid in a catalyst slurry preparation system,
- wherein the catalyst slurry preparation system comprises:
- a first mixing vessel,
- a first rotatable impeller system connected to the first mixing vessel, and
- a first motor connected to the first rotatable impeller system,
- wherein the first rotatable impeller system comprises an agitator shaft and at least two hubs connected to the agitator shaft, wherein the at least two hubs and at least a portion of the agitator shaft are positioned within the first mixing vessel along a longitudinal axis of the first mixing vessel, and wherein each of the at least two hubs comprise at least two blades;
- preparing a second catalyst slurry comprising the solid particulate catalyst and the carrier liquid in the catalyst slurry preparation system,
- wherein the catalyst slurry preparation system further comprises:
- a second mixing vessel,
- a second rotatable impeller system connected to the second mixing vessel, and
- a second motor connected to the second rotatable impeller system,
- wherein the second rotatable impeller system comprises an agitator shaft and at least two hubs connected to the agitator shaft, wherein the at least two hubs and at least a portion of the agitator shaft are positioned within the second mixing vessel along a longitudinal axis of the second mixing vessel, wherein each of the at least two hubs comprise at least two blades,
- wherein an outlet of the second mixing vessel is connected to an inlet of the first mixing vessel, and
- wherein a first concentration of the solid particulate catalyst in the first catalyst slurry is about equal to or greater than a second concentration of the solid particulate catalyst in the second catalyst slurry.
11 more elements
A process comprising:
- preparing a first catalyst slurry comprising a solid particulate catalyst and a carrier liquid in a catalyst slurry preparation system,
- wherein the catalyst slurry preparation system comprises:
- a first mixing vessel,
- a first rotatable impeller system connected to the first mixing vessel, and
- a first motor connected to the first rotatable impeller system,
- wherein the first rotatable impeller system comprises an agitator shaft and at least one hub connected to the agitator shaft, wherein the at least one hub and at least a portion of the agitator shaft are positioned within the first mixing vessel along a longitudinal axis of the first mixing vessel, and wherein the at least one hub comprises at least two blades;
- preparing a second catalyst slurry comprising the solid particulate catalyst and the carrier liquid in the catalyst slurry preparation system,
- wherein the catalyst slurry preparation system further comprises:
- a second mixing vessel,
- a second rotatable impeller system connected to the second mixing vessel, and
- a second motor connected to the second rotatable impeller system,
- wherein the second rotatable impeller system comprises an agitator shaft and at least one hub connected to the agitator shaft, wherein the at least one hub and at least a portion of the agitator shaft are positioned within the second mixing vessel along a longitudinal axis of the second mixing vessel, wherein the at least one hub comprises at least two blades,
- wherein an outlet of the second mixing vessel is connected to an inlet of the first mixing vessel,
- wherein a first concentration of the solid particulate catalyst in the first catalyst slurry is about equal to a second concentration of the solid particulate catalyst in the second catalyst slurry, and
- wherein the second concentration of the solid particulate catalyst in the second catalyst slurry is equal to or less than about 20 wt % based on a total weight of the second catalyst slurry.
12 more elements
A process comprising:
- preparing a first catalyst slurry comprising a solid particulate catalyst and a carrier liquid in a catalyst slurry preparation system,
- wherein the catalyst slurry preparation system comprises:
- a mixing vessel,
- a rotatable impeller system connected to the mixing vessel, and
- a motor connected to the rotatable impeller system,
- wherein the rotatable impeller system comprises an agitator shaft and a first hub connected to the agitator shaft, wherein the first hub and at least a portion of the agitator shaft are positioned within the mixing vessel along a longitudinal axis of the mixing vessel, wherein the first hub comprises three blades, and wherein the catalyst slurry within the mixing vessel has a Coefficient of Variation (CoV) of less than about 0.4.
3 more elements
Dependencies are inferred from the claim text.