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US 12,708,872 B2Granted
Fluids, solids and heavy component removal from reclaimer process liquid streams
AssigneeAxens
InventorsRaymond G. F. Abry, Marc Deremiens, Di Tian, Adrian Ail
Life of this patent
Estimating the term…
Abstract
A process for removing solids/sludge, unwanted liquids and heavy components from processing liquids. The process involving adjusting the pH of the feed stream comprising processing liquids, water, and one or more contaminants and introducing the stream into a solids/liquids/liquids centrifuge. The solids removal process being incorporated into a processing liquid reclaiming/recovery process.
Claims12
A process for recovering a processing liquid from a feed stream, said process comprising:
- providing a feed stream comprising processing liquid, from 1 to 85 wt % water, and dissolved solids;
- adjusting the pH of said feed stream to a pH greater than 9 to induce formation of solids;
- introducing at least a portion of said feed stream into a solids/liquids/liquids disc centrifuge to produce a discharge stream containing solids and a clarified stream;
- introducing a first portion of said clarified stream into a reclaiming system to produce a stream comprising purified processing liquid and a residuum stream comprising solids;
- recycling a second portion of said clarified stream to said feed stream;
- and
- introducing said clarified stream into a clarifier prior to recycling a second portion of said clarified stream.
4 more elements
A process for recovering a processing liquid from a feed stream, said process comprising:
- providing a feed stream comprising processing liquid, from 1 to 85 wt % water, and dissolved solids;
- adjusting the pH of said feed stream to a pH greater than 9 to induce formation of solids;
- introducing at least a portion of a feed stream into a first solids/liquids/liquids disc centrifuge to produce a first discharge stream containing solids and a first clarified stream;
- introducing a first portion of said first clarified stream into a reclaiming system to produce a stream comprising purified processing liquid and a residuum stream comprising solids;
- introducing at least a portion of said residuum stream into a second solids/liquids/liquids disc centrifuge to produce a second discharge stream containing solids and a second clarified stream;
- recycling a second portion of said first clarified stream to said feed stream;
- and
- introducing said first clarified stream into a clarifier prior to recycling a second portion of said first clarified stream.
5 more elements
Dependencies are inferred from the claim text.