IP Library Granted Patent US 9,409,110
Granted Patent B2
US 9,409,110 · App. 13/183,069 · Granted Aug 9, 2016

Method of maintaining water quality in a process stream

Inventors: Ana-Mariana Urmenyi (Utrecht, NL); Amit Gupta (Aurora, IL); Chris D. Davies (Frodsham, GB); Bert Simons (Amstelveen, NL)
Assignee: NALCO COMPANY
B01D37/04B01D37/041B01D37/043B01D37/045B01D37/046B01D37/048C02F1/001C02F1/008C02F1/32C02F1/38C02F1/441C02F1/444C02F2103/023C02F2209/001C02F2209/005C02F2209/006C02F2209/008C02F2209/02C02F2209/03C02F2209/04C02F2209/06C02F2209/10C02F2209/105C02F2209/11C02F2209/20C02F2209/36C02F2209/40C02F2209/445C02F2301/043C02F2301/046
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Quick Facts
Patent No.
US 9,409,110
App. No.
13/183,069
Granted
Aug 9, 2016
Kind
B2
Abstract

Disclosed and claimed is a method of removing contaminants from a process stream or stabilizing a system parameter in the process stream. The method includes providing a filtration system in communication with a controller, wherein the controller is operable to automatically initiate a flow from the process stream into the filtration system when the system parameter of the process stream is within above an upper threshold value and/or below a lower threshold value; and activating the filtration system, wherein the flow comprises a flow rate through the filtration system and the controller is operable to adjust the flow rate.

Claims (4)

1. A method of removing contaminants from a non-aqueous process stream or stabilizing a system parameter in the non-aqueous process stream, the method comprising:

(a) providing only one side-stream filtration system consisting of one filter, the side-stream filtration system in communication with a controller and in fluid communication with the non-aqueous process stream, wherein the controller automatically initiates a flow from the non-aqueous process stream into the side-stream filtration system when the system parameter of the non-aqueous process stream is above an upper threshold value and/or below a lower threshold value, wherein the flow into the side-stream filtration system is a percentage of the total non-aqueous process stream such that a part of the total non-aqueous process stream is unfiltered;

(b) activating the side-stream filtration system, wherein the flow comprises a flow rate through the side-stream filtration system and the controller adjusts the flow rate.

2. The method of claim 1 , wherein the non-aqueous process stream is extracted or produced oil.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 28, 2017
From: NALCO COMPANY LLC
To: ECOLAB USA INC.
Reel/Frame 042851/0254 →
CHANGE OF NAME Recorded Jun 15, 2017
From: NALCO COMPANY
To: NALCO COMPANY LLC
Reel/Frame 042821/0076 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 14, 2011
From: URMENYI, ANA-MARIANA; GUPTA, AMIT; DAVIES, CHRIS D.; SIMONS, BERT
To: NALCO COMPANY
Reel/Frame 026592/0638 →
Continuity (1)
Related Publication 20130015137A1 · Jan 17, 2013