Patent ID: 9103261
Filing Date: 2015-08-11
Classification: F01N,G01N,G01R

Abstract:
1. A device for adjusting dosage of an additive, comprising: a first reservoir holding a first fluid for dispensing therefrom; a second reservoir holding a second fluid for dispensing therefrom; a flow control fluidically connected with the second reservoir to control a rate of second fluid dispensed from the second reservoir; wherein the first reservoir is fluidically connected with the flow control such that the second fluid dispensed from the second reservoir and passing through the flow control combines with the first fluid dispensed from the first reservoir to form a combined fluid; an electron spin resonance (ESR) sensor fluidically connected with at least one of the first and second reservoirs; a controller communicatively connected with the ESR sensor and the flow control, the controller operable for receiving a signal from the ESR sensor and controlling, via the flow control, a rate at which the second fluid is dispensed from the second reservoir; wherein the ESR sensor is positioned downstream from the first reservoir and second reservoir and flow control such that a portion of the combined fluid passes through the ESR sensor, the ESR sensor operable for measuring material within the combined fluid; and wherein the first reservoir is a hydrocarbon fluid reservoir and the second reservoir is an additive reservoir, such that the ESR sensor is adapted to simultaneously measure both contaminant concentration and additive concentration within the combined fluid, with the controller adjusting the rate at which the second fluid is dispensed from the additive reservoir to adjust the additive concentration based on simultaneous measurement of both the contaminant concentration and additive concentration.