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FR2406200A1 - Measuring gas humidity - by measuring heat produced in interaction of a reagent with the water in the gas - Google Patents

Measuring gas humidity - by measuring heat produced in interaction of a reagent with the water in the gas

Info

Publication number
FR2406200A1
FR2406200A1 FR7730927A FR7730927A FR2406200A1 FR 2406200 A1 FR2406200 A1 FR 2406200A1 FR 7730927 A FR7730927 A FR 7730927A FR 7730927 A FR7730927 A FR 7730927A FR 2406200 A1 FR2406200 A1 FR 2406200A1
Authority
FR
France
Prior art keywords
gas
reagent
measuring
humidity
measured
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7730927A
Other languages
French (fr)
Other versions
FR2406200B1 (en
Inventor
Jean Barjhoux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Produits Chimiques Ugine Kuhlmann
Ugine Kuhlmann SA
Original Assignee
Produits Chimiques Ugine Kuhlmann
Ugine Kuhlmann SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Produits Chimiques Ugine Kuhlmann, Ugine Kuhlmann SA filed Critical Produits Chimiques Ugine Kuhlmann
Priority to FR7730927A priority Critical patent/FR2406200A1/en
Publication of FR2406200A1 publication Critical patent/FR2406200A1/en
Application granted granted Critical
Publication of FR2406200B1 publication Critical patent/FR2406200B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

Humidity in gases, esp. corrosive gases, is measured by detecting the temp. increase when a test reagent, pref. conc. sulphuric acid, is exposed to the water vapour in the gas. A differential temp. measurement can be made using one probe at the reaction cell and another at a location downstream of it, in the gas dried by the reagent. These two probes can be connected to a Wheatstone bridge. The appts. is calibrated using gas samples of known humidities, plotting a calibration curve. Produces humidity measurements of good accuracy, quickly (is approx. 5 mins.). This is important where excess water vapour in a corrosive gas can accelerate corrosion of the contg. vessel walls, dangerously weakening them and giving rise to the risk of explosion, e.g. in chlorine or hydrogen chloride or sulphur dioxide. Humidities of 100-2000 ppm. (wt.) can be measured.
FR7730927A 1977-10-14 1977-10-14 Measuring gas humidity - by measuring heat produced in interaction of a reagent with the water in the gas Granted FR2406200A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7730927A FR2406200A1 (en) 1977-10-14 1977-10-14 Measuring gas humidity - by measuring heat produced in interaction of a reagent with the water in the gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7730927A FR2406200A1 (en) 1977-10-14 1977-10-14 Measuring gas humidity - by measuring heat produced in interaction of a reagent with the water in the gas

Publications (2)

Publication Number Publication Date
FR2406200A1 true FR2406200A1 (en) 1979-05-11
FR2406200B1 FR2406200B1 (en) 1981-09-18

Family

ID=9196490

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7730927A Granted FR2406200A1 (en) 1977-10-14 1977-10-14 Measuring gas humidity - by measuring heat produced in interaction of a reagent with the water in the gas

Country Status (1)

Country Link
FR (1) FR2406200A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981001615A1 (en) * 1979-11-30 1981-06-11 A Sorensen A method for determining the concentration of an absorbable component in a gaseous mixture

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1441884A (en) * 1965-06-25 1966-06-10 Mine Safety Appliances Co Method and installation for detecting water vapor in a gas
US3833340A (en) * 1972-12-04 1974-09-03 Drew Chem Corp Determination of water content of liquid mixtures

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1441884A (en) * 1965-06-25 1966-06-10 Mine Safety Appliances Co Method and installation for detecting water vapor in a gas
US3833340A (en) * 1972-12-04 1974-09-03 Drew Chem Corp Determination of water content of liquid mixtures

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981001615A1 (en) * 1979-11-30 1981-06-11 A Sorensen A method for determining the concentration of an absorbable component in a gaseous mixture
US4518566A (en) * 1979-11-30 1985-05-21 Sorensen Ansgar C H Device for determining the concentration of an absorbable component in a gaseous mixture

Also Published As

Publication number Publication date
FR2406200B1 (en) 1981-09-18

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ST Notification of lapse