Nitric oxide analysis and scrubber therefor. [In a gas stream containing nitrogen dioxide using silver carbonate scrubber]

Patent · Tue Jan 27 00:00:00 EST 1976

OSTI ID:7187980

Frain, J P; Harman, III, J N; Neti, R M

A method is described for analyzing nitric oxide (NO) in a gas stream containing nitrogen dioxide (NO/sub 2/); included is a scrubber apparatus for selectively removing nitrogen dioxide from a gas stream containing nitric oxide. The scrubber material in the container includes silver carbonate whereby the scrubber has an efficiency of at least about 99 percent and a capacity of about 11.5 parts per million hours of 99 percent nitrogen dioxide removal per gram of silver carbonate. The method involves passing the gas stream through a scrubber material containing silver carbonate so as to remove nitrogen dioxide from the gas stream while passing the nitric oxide unattenuated and thereafter conveying the gas stream from the scrubber material to an analyzer for nitric oxide. 5 Claims, 1 Drawing Figure

• Assignee: Beckman Instruments, Inc.
• Patent Number(s): US 3934991
• OSTI ID: 7187980
• Resource Relation: Patent File Date: Filed date 1 Mar 1971
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
NITRIC OXIDE
QUANTITATIVE CHEMICAL ANALYSIS
NITROGEN DIOXIDE
SCRUBBING
SILVER CARBONATES
SORPTIVE PROPERTIES
AIR POLLUTION
GAS ANALYSIS
SCRUBBERS
CARBON COMPOUNDS
CARBONATES
CHALCOGENIDES
CHEMICAL ANALYSIS
EQUIPMENT
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION
POLLUTION CONTROL EQUIPMENT
SILVER COMPOUNDS
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
400105* - Separation Procedures
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)