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1. WO1992015877 - METHOD AND DEVICE FOR CONTINUOUSLY MEASURING A COMPOUND CONTAINED IN A LIQUID MEDIUM, HAVING A BASIC VOLATILE FORM

Publication Number WO/1992/015877
Publication Date 17.09.1992
International Application No. PCT/FR1992/000194
International Filing Date 04.03.1992
Chapter 2 Demand Filed 07.05.1992
IPC
G01N 33/00 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
G01N 33/18 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
18Water
CPC
G01N 33/0054
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
0004Gaseous mixtures, e.g. polluted air
0009General constructional details of gas analysers, e.g. portable test equipment
0027concerning the detector
0036Specially adapted to detect a particular component
0054for ammonia
G01N 33/18
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
18Water
Y02A 50/20
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
50in human health protection, e.g. against extreme weather
20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Applicants
  • AIR ET EAU INGENIERIE (S.A.) [FR]/[FR] (AllExceptUS)
  • GAL, Jean-Yves [FR]/[FR] (UsOnly)
  • BOURG, Bernard [FR]/[FR] (UsOnly)
Inventors
  • GAL, Jean-Yves
  • BOURG, Bernard
Agents
  • SOMNIER, Jean-Louis
Priority Data
91/0314508.03.1991FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) METHOD AND DEVICE FOR CONTINUOUSLY MEASURING A COMPOUND CONTAINED IN A LIQUID MEDIUM, HAVING A BASIC VOLATILE FORM
(FR) PROCEDE ET DISPOSITIF DE DOSAGE EN CONTINU D'UN COMPOSE PRESENT DANS UN MILIEU LIQUIDE, AYANT UNE FORME VOLATILE BASIQUE
Abstract
(EN)
The device comprises a recipient or cell (1) into which the said liquid (24) is placed with a basic reaction product to volatilize the gaseous form (4) of the said product in the said cell (1), and at least a second recipient or cell (2) into which a receiving solution (25) is placed for which the value of a parameter representing the desired concentration is known, said concentration being measurable by a measurement system (6) associated with this at least second cell (2). A sealed closed circuit (10) recirculates the recuperated gas (11) in the upper space (12) of the at least second cell (2) towards and into the liquid medium (24) in the lower space (13) of the first cell (1). An injection means (7) for the gas (4) volatilized in the first cell ensures that this gas is directed towards and redisolved in the liquid medium (25) of the next cell.
(FR)
Le dispositif comprend un réservoir ou cellule (1) dans lequel est introduit ledit liquide (24) avec un produit basique de réaction afin de volatiliser dans ladite cellule (1) la forme gazeuse (4) dudit produit, et au moins un deuxième réservoir ou cellule (2) dans lequel est introduite une solution réceptrice (25) dont est connue la valeur d'un paramètre caractéristique du dosage recherché et mesurable par un système de mesure (6), associé à cette au moins deuxième cellule (2). Un circuit fermé étanche (10) permet la recirculation du gaz récupéré (11) dans le volume supérieur (12) de la au moins deuxième cellule (2) vers et dans le milieu liquide (24) contenue dans le volume inférieur (13) de la première cellule (1), et un moyen d'injection (7) du gaz (4) volatilisé dans celle-ci assure la redissolution de ce gaz vers et dans le milieu liquide (25) de la cellule suivante.
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