Gasification and Fischer-Tropsch process waste water treatment

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United States of America Patent

PATENT NO 12122701
APP PUB NO 20230202945A1
SERIAL NO

17912224

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Abstract

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In a process for treating wastewater from a combined gasification and Fischer-Tropsch (F-T) process, feedstock derived from Municipal Solid Waste or the like is gasified in a reactor (R) and treated in a cleanup unit (C) which generates a first wastewater stream (1st WWT STREAM) containing salts and inorganic pollutants. The first wastewater stream is treated in a treatment unit (T1) to remove inorganic pollutants derived from the syngas. The treatment comprises a) degassing, and subsequently b) neutralising the first wastewater stream before treatment in a Dissolved Air Flotation unit (72c) and filtering in a moving sand bed or similar (72d) to remove solids, and a stripping process to remove ammonia. A second wastewater stream (2nd WWT Stream) containing organic pollutants but being low in salts arises from the F-T process and is treated separately to allow recycling within the F-T process.

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Patent Owner(s)

Patent OwnerAddress
VELOCYS TECHNOLOGIES LIMITEDMAGDALEN CENTRE ROBERT ROBINSON AVENUE THE OXFORD SCIENCE PARK OXFORD OX4 4GA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lea, Graham Cambridgeshire, GB 4 4

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