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.

Date of Patent:
Oct. 08, 2019

Filed:

Sep. 15, 2015
Applicant:

Velocys Technologies, Ltd., Milton Park, GB;

Inventors:

Graham Lea, Oxford Cluny, GB;

Ivan Philip Greager, Houston, TX (US);

Laura J. Silva, Dublin, OH (US);

Assignee:

Velocys Technologies, Ltd., Milton Park, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 3/12 (2006.01); C01B 5/00 (2006.01); C02F 1/66 (2006.01); C02F 1/20 (2006.01); C02F 103/36 (2006.01);
U.S. Cl.
CPC ...
C02F 3/1268 (2013.01); C01B 5/00 (2013.01); C02F 3/1273 (2013.01); C02F 1/20 (2013.01); C02F 1/66 (2013.01); C02F 2103/365 (2013.01); C02F 2201/46115 (2013.01); C02F 2305/06 (2013.01); Y02E 50/343 (2013.01); Y02W 10/15 (2015.05);
Abstract

The Fischer-Tropsch (FT) process creates significant amounts of water. This FT produced water contains significant amounts of organic impurities. The invention provides methods of treating FT produced water. Surprisingly, it was discovered that the FT produced water could be successfully treated in a membrane bioreactor (MBR) according to relatively simple and more efficient steps; for example, by adjusting the pH of the water in the range of 4.2 to 5.8 or treating the FT produced water in a stripper where the distillate product stream and a reflux stream returning to the stripper have the same composition. In a related aspect, water compositions are described.


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