USING RAMAN SPECTROSCOPY TO CONTROL CARBONATE / BICARBONATE CONCENTRATIONS

An apparatus and method of controlling carbonate/bicarbonate concentrations and ratio in a chemical process having the steps of flowing a carbonate/bicarbonate solution through a measurement cell (202), exposing the solution to laser light of suitable wavelength and power (204); measuring the intens...

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Hauptverfasser:	BOSCO, ROBERTO, GRANDJEAN, BRIAN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	COLORIMETRY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PHYSICS RADIATION PYROMETRY TESTING
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creator	BOSCO, ROBERTO GRANDJEAN, BRIAN
description	An apparatus and method of controlling carbonate/bicarbonate concentrations and ratio in a chemical process having the steps of flowing a carbonate/bicarbonate solution through a measurement cell (202), exposing the solution to laser light of suitable wavelength and power (204); measuring the intensity of the scattered light using Raman spectroscopy (206); calculating the concentration of carbonate and bicarbonate from the intensity of the scattered light (208); and sending the measurement results to a programmable logic controller (210) to be used to control the ratio of carbonate and bicarbonate in the solution through adjusting process parameters. The method is useful in both carbon dioxide absorption processes and carbonate/bicarbonate regeneration processes.
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language	eng ; fre ; ger
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subjects	COLORIMETRY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PHYSICS RADIATION PYROMETRY TESTING
title	USING RAMAN SPECTROSCOPY TO CONTROL CARBONATE / BICARBONATE CONCENTRATIONS
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