Method for removing a foulant from a gas stream without external refrigeration

Patent · Tue May 11 00:00:00 EDT 2021

OSTI ID:1823944

Baxter, Larry; Hoeger, Christopher; Mansfield, Eric

A process for removing a foulant from a gas stream is disclosed. The gas stream, containing a foulant, is cooled across a first heat exchanger and a second heat exchanger, producing a solid foulant entrained in cryogenic liquid as a foulant slurry, and a foulant-depleted gas stream. The foulant-depleted gas stream is passed through a cryogenic turbine and a first separation vessel, producing a light gas stream and further solid foulant. The solid foulants are recovered by a combination of pressurization, melting, and distillation to produce a liquid foulant product. Heat is recovered from the various streams in the various heat exchangers and the melter.

• Research Organization: Sustainable Energy Solutions, Inc., Ball Ground, GA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FE0028697
• Assignee: Sustainable Energy Solutions, Inc. (Ball Ground, GA)
• Patent Number(s): 11,002,481
• Application Number: 15/464,271
• OSTI ID: 1823944
• Resource Relation: Patent File Date: 03/20/2017
• Country of Publication: United States
• Language: English