REMOVAL OF HEAT STABLE AMINE SALTS FROM LIQUID STREAMS AND RELATED PROCESSES

    公开(公告)号:US20240286935A1

    公开(公告)日:2024-08-29

    申请号:US18566458

    申请日:2022-05-17

    申请人: ELECTROSEP INC.

    发明人: Paul PARISI

    摘要: Processes for removing heat stable amine salts from a contaminated aqueous amine solution are proposed comprising passing a feedstream of the contaminated aqueous amine solution in an electrodialysis zone comprising at least one repeat unit with an amine solution compartment for receiving the feedstream, a waste compartment, and an anion source compartment receiving an anion source stream or a bi-polar membrane disposed for providing anions balancing the heat stable anions. Monitoring of an anion source-related parameter being correlated to the anion source concentration of the anion-depleted source stream, or of a waste parameter being correlated to an acid concentration of the waste stream, is performed to further adjust an addition of the anion source or a removal of the waste stream in accordance with the monitored parameter.