JPS5476289A - Analytical method of ammonia in gas - Google Patents

Analytical method of ammonia in gas

Info

Publication number
JPS5476289A
JPS5476289A JP14359777A JP14359777A JPS5476289A JP S5476289 A JPS5476289 A JP S5476289A JP 14359777 A JP14359777 A JP 14359777A JP 14359777 A JP14359777 A JP 14359777A JP S5476289 A JPS5476289 A JP S5476289A
Authority
JP
Japan
Prior art keywords
gas
measured
converter
sum
converted
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
JP14359777A
Other languages
Japanese (ja)
Other versions
JPS6410780B2 (en
Inventor
Shinichi Ochiwa
Harutaka Taniguchi
Yoshikazu Hirose
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP14359777A priority Critical patent/JPS5476289A/en
Priority to DE19782851821 priority patent/DE2851821A1/en
Publication of JPS5476289A publication Critical patent/JPS5476289A/en
Publication of JPS6410780B2 publication Critical patent/JPS6410780B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0011—Sample conditioning
    • G01N33/0013—Sample conditioning by a chemical reaction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/10—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using catalysis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
  • Molecular Biology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Catalysts (AREA)

Abstract

PURPOSE: To realize high percision, continuous analysis of NH3 in exhaust gas as NO, by selecting catalyst and its optimum using condition, in a denitration system depending on NH3 selective reduction method.
CONSTITUTION: The sample gas from a gas inlet 1 is passed into NO analytical meter 7 by changeover cock 2 through bypass route 5, and only NO is measured. Then, the gas flow path is changed to NO2/NO converter 4, where NO2 in the gas is converted into NO, and the sum of NO2 and NO is measured. Finally, the sample gas is put into NH3/NO converter 3, and passes through granular catalyst which preferably carries Pt by about 1 to 3 wt. % and is heated to 650 to 900°C, at a space velocity of 30000 to 200000 Hr-1. The gas of which NH3 and NO2 are both converted into NO is rid of moisture by moisture remover 6, and the sum of HN3, NO2, and NO is measured by the analytical meter 7. As a result of three operations above, HN3, NO2, and NO may be determined respectively.
COPYRIGHT: (C)1979,JPO&Japio
JP14359777A 1977-11-30 1977-11-30 Analytical method of ammonia in gas Granted JPS5476289A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP14359777A JPS5476289A (en) 1977-11-30 1977-11-30 Analytical method of ammonia in gas
DE19782851821 DE2851821A1 (en) 1977-11-30 1978-11-30 Catalytic conversion of ammonia to nitrogen mon:oxide - in gas to be analysed, using hot supported platinum catalyst and high spatial velocity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14359777A JPS5476289A (en) 1977-11-30 1977-11-30 Analytical method of ammonia in gas

Publications (2)

Publication Number Publication Date
JPS5476289A true JPS5476289A (en) 1979-06-18
JPS6410780B2 JPS6410780B2 (en) 1989-02-22

Family

ID=15342413

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14359777A Granted JPS5476289A (en) 1977-11-30 1977-11-30 Analytical method of ammonia in gas

Country Status (2)

Country Link
JP (1) JPS5476289A (en)
DE (1) DE2851821A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981002929A1 (en) * 1980-04-07 1981-10-15 Fuji Electric Co Ltd Ammonia analysis apparatus

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272336A (en) * 1979-07-27 1981-06-09 Massachusetts Institute Of Technology Method and apparatus for forming nitric oxide from ammonia
US4333735A (en) 1981-03-16 1982-06-08 Exxon Research & Engineering Co. Process and apparatus for measuring gaseous fixed nitrogen species
DE3707943C1 (en) * 1987-03-12 1988-04-07 Draegerwerk Ag Device for the heat treatment of gaseous measurement samples
DE3841622A1 (en) * 1988-12-10 1990-06-13 Draegerwerk Ag ELECTROCHEMICAL MEASURING CELL FOR THE AMPEROMETRIC DETERMINATION OF AMMONIA AND ITS DERIVATIVES

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51128591A (en) * 1975-04-30 1976-11-09 Sumitomo Chem Co Ltd Ammonium detecting system in gas
JPS5258987A (en) * 1975-11-11 1977-05-14 Sumitomo Heavy Industries Quantitative analytical method of anmonium in gases

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51128591A (en) * 1975-04-30 1976-11-09 Sumitomo Chem Co Ltd Ammonium detecting system in gas
JPS5258987A (en) * 1975-11-11 1977-05-14 Sumitomo Heavy Industries Quantitative analytical method of anmonium in gases

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981002929A1 (en) * 1980-04-07 1981-10-15 Fuji Electric Co Ltd Ammonia analysis apparatus

Also Published As

Publication number Publication date
JPS6410780B2 (en) 1989-02-22
DE2851821A1 (en) 1979-05-31

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