Method and apparatus for nox analysis

Details Method and apparatus for nox analysis Method and apparatus for nox analysis

1974-10-17

1976-07-20

Reese, Robert M.

Chemistry: physical processes

Physical processes

Crystallization

23254R, 250373, 356201, G01N 2124, G01J 142

Patent

active

039704300

ABSTRACT:
Apparatus and method for NO.sub.x analysis in which a sample gas is introduced into a sample cell and mixed with oxygen to induce conversion of NO to NO.sub.2. After a given time, prior to complete conversion of NO to NO.sub.2, the absorbance and the time rate of change of absorbance is measured. The time rate of change of absorbance is indicative of the initial NO concentration in the sample gas; and the sum of the absorbance and the time rate of change of absorbance is indicative of the initial NO.sub.x concentration in the gas. A better indication of the initial NO.sub.x concentration can be obtained from the sum of the absorbance and the square root of the time rate of change of absorbance.

REFERENCES:
patent: 3518000 (1970-06-01), Truchelut et al.
patent: 3654109 (1972-04-01), Hohl et al.
patent: 3701601 (1972-10-01), Plumre, Jr. et al.
patent: 3718429 (1973-02-01), Williamson, Jr.
patent: 3798625 (1974-03-01), McMilliam et al.

Affiliated with

Also associated with

Rating

Method and apparatus for nox analysis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for nox analysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for nox analysis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-554419