The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 1981
Filed:
Oct. 04, 1979
George C Blytas, Houston, TX (US);
Rudolf J Maas, Amsterdam, NL;
Andreas B van Aken, Amsterdam, NL;
Christiaan van Schalkwijk, Amsterdam, NL;
Shell Oil Company, Houston, TX (US);
Abstract
A process for sour water treatment in which the sour components are removed from a sour water stream in an electrodialysis step in which the sour water stream becomes the dilute stream. A resulting concentrate stream, richer in the sour components than the original stream is then steam stripped. In order to balance the acid and basic components in the dilute stream the component lacking may be added to the stream. In order to prevent build-up of non-strippable components in the concentrate stream a part of the latter is recombined with the dilute stream either before or after the electrodialysis step.