Effect of Exhaust Gas Flow Velocity on the Chemisorption of Nitrogen Oxides

Vitaliy Semykin; Mykola Mykolaevich Zipunnikov

doi:10.17721/fujcV14I1P151-158

Authors

Vitaliy Semykin A. Pidhornyi Institute of Power Machines and Systems of NASU, 2/10, Komunalnykiv str., 61046, Kharkiv, Ukraine
Mykola Mykolaevich Zipunnikov A.M. Pidhorny Institute of Mechanical Engineering Problems of NASU http://orcid.org/0000-0002-0579-2962

DOI:

https://doi.org/10.17721/fujcV14I1P151-158

Keywords:

absorption, NOx neutralization, bubbling, exhaust gas flow velocity, diesel engines

Abstract

This study investigates wet scrubbing of diesel exhaust gases for NO_x removal, as NO_x is one of the major pollutants associated with diesel engine operation. Chemical absorption of NO_x was achieved through the interaction of exhaust gases with aqueous absorbent solutions (KMnO₄ + HNO₃, KMnO₄ + H₂SO₃, CO(NH₂)₂ + SnCl₂, and water) under bubbling conditions. The dependence of NO_x neutralization efficiency on the flow velocity of treated exhaust gases was established. The proposed relationship, along with the methodology developed on its basis, enables the evaluation of the performance of chemical absorbents in the wet neutralization of NO_x from diesel exhaust gases, taking into account hydrodynamic and gas–liquid interaction effects.

Author Biography

Mykola Mykolaevich Zipunnikov, A.M. Pidhorny Institute of Mechanical Engineering Problems of NASU

Hydrogen Energetics Department, Senior Researcher

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