US 9,804,117 B2 · CO2 concentration measurement in dry gas mixtures

Abstract

Described herein is an apparatus and methods for characterizing a fluid composition including exposing electrolyte to one fluid mixture, collecting a signal from an electrode in contact with the electrolyte, and simultaneously exposing the electrolyte to a second fluid, collecting a signal from a second electrode in contact with the electrolyte exposed to the second fluid, and comparing the signal difference between the electrodes with the Nerst equation wherein the temperature of the electrolyte is above 488° C. Carbon dioxide, nitrogen, and/or oxygen may be present in the fluid and/or the second fluid.

Claims28

Dependent claims

An apparatus for observing a gas composition, the apparatus comprising:

a housing comprising alumina configured to contain molten electrolyte, wherein (i) the housing is configured to direct a first fluid through a first flow pathway such that the first fluid contacts the molten electrolyte and (ii) the housing is configured to direct a second fluid through a second flow pathway such that the second fluid contacts the molten electrolyte;
a first electrode in contact with the molten electrolyte;
and
a second electrode in contact with the molten electrolyte;
and
a pressure balanced sampling system configured to pressure balance the first flow pathway and the second flow pathway.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/966,093Filed 13 Aug 2013

Published

US 2015/0047990 A119 Feb 2015

Granted

31 Oct 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification3 codes

G01N 27/403
By investigating electrochemical variables; by using electrolysis or electrophoresis: cells and electrode assemblies
G01N 27/4074
Composition or fabrication of the solid electrolyte: for detection of gases other than oxygen
G01N
Investigating or analysing materials by determining their chemical or physical properties

CO2 concentration measurement in dry gas mixtures

Life of this patent

CO2 concentration measurement in dry gas mixtures

Life of this patent

Abstract

Claims28