US 12,297,127 B2
Process for controlling treatment of waste fluid generated during petrochemical process using incinerator
Jen-Shiung Lu, New Taipei (TW); Ken Kondo, Hiroshima (JP); Jiaping Toh, Singapore (SG); Halbe Anne Jansen, Eschlikon (CH); and Claudia Pudack, Zürich (CH)
Assigned to SULZER MANAGEMENT AG, Winterthur (CH)
Appl. No. 17/781,366
Filed by SULZER MANAGEMENT AG, Winterthur (CH)
PCT Filed Dec. 14, 2020, PCT No. PCT/EP2020/086030
§ 371(c)(1), (2) Date May 31, 2022,
PCT Pub. No. WO2021/122478, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 19218192 (EP), filed on Dec. 19, 2019.
Prior Publication US 2023/0002250 A1, Jan. 5, 2023
Int. Cl. C02F 1/22 (2023.01); C02F 1/04 (2023.01); C02F 1/26 (2023.01); C02F 1/72 (2023.01); C02F 9/00 (2023.01); C02F 11/06 (2006.01); C02F 1/52 (2023.01); C02F 103/36 (2006.01)
CPC C02F 1/22 (2013.01) [C02F 1/048 (2013.01); C02F 1/26 (2013.01); C02F 1/72 (2013.01); C02F 9/00 (2013.01); C02F 11/06 (2013.01); C02F 2001/5218 (2013.01); C02F 2103/365 (2013.01); C02F 2303/10 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A process for treating waste fluid generated during a petrochemical process, the waste fluid comprising at least one first water-based wastewater stream and at least one second organic fluid-based waste fluid stream, the process comprising:
subjecting the at least one first water-based wastewater stream to at least one freeze concentration stage so as to produce a third clean water stream and a fourth concentrated water-based wastewater stream,
subjecting the at least one second organic fluid-based waste fluid stream to at least one separation stage so as to produce a fifth purified product stream and a sixth concentrated organic fluid-based waste fluid stream, and
forwarding the fourth concentrated water-based wastewater stream and the sixth concentrated organic fluid-based waste fluid stream to an incinerator and incinerating the fourth concentrated water-based wastewater stream and the sixth concentrated organic fluid-based waste fluid stream in the incinerator,
the process being controlled by adjusting at least one of a concentration degree during the at least one freeze concentration stage, a separation degree during the at least one separation stage, and a ratio between the fourth concentrated water-based wastewater stream and the sixth concentrated organic fluid-based waste fluid stream such that incineration of the sixth concentrated organic fluid-based waste fluid stream generates at least 70% of an energy necessary to incinerate the fourth concentrated water-based wastewater stream.