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ARS Home » Midwest Area » Bowling Green, Kentucky » Food Animal Environmental Systems Research » Research » Publications at this Location » Publication #242752

Title: Evaluation of Secondary Aerosol Formation from Primary Amines and Implications to Selective Catalytic Reduction

Author
item Malloy, Quentin - University Of California
item Qi, Li - University Of California
item Warren, Bethany - University Of California
item Cocker, Iii, David - University Of California
item Erupe, Mark - Utah State University
item Silva, Philip - Phil

Submitted to: Transportation Research Board
Publication Type: Proceedings
Publication Acceptance Date: 10/28/2009
Publication Date: 1/12/2010
Citation: Malloy, Q.G., Qi, L., Warren, B., Cocker, Iii, D.R., Erupe, M.E., Silva, P.J. 2010. Evaluation of Secondary Aerosol Formation from Primary Amines and Implications to Selective Catalytic Reduction. Transportation Research Board.

Interpretive Summary:

Technical Abstract: With the mandated reduction of NOx, advanced emission control technologies are being implemented. One strategy is the adaptation of selective catalytic reduction units with urea as a focus. However, urea suffers from issues such as stability at elevated temperatures and the tendency to form deposits in exhaust gas streams. Compounds with amine functional groups have been proposed as reductants. Amines can be degraded to ammonia, eliminating the need for expensive catalyst. Here we present data from experiments focused on the fate of primary amines in the atmosphere. Ultrafine particles are formed with mass based yields raging from <2% for methylamine to greater than 44% for ethylamine and butylamine.