New process for reduction of polluting emissions in livestock buildings

Abstract

International @ AIR+LRE:AGFInternational audienceIt is of prime importance to reduce the emissions of methane and N2O, whether they emanate from stationary sources such as livestock buildings. There are several methods for eliminating air pollutants, which can be grouped into two main categories. One category comprises separation-and-recovery techniques such as absorption or adsorption, and the other category comprises the so-called destruction techniques such as catalytic combustion or decompositon. These latter techniques are more effective when the pollutants are present in trace amounts, but this requires the use of heterogeneous catalysts. In livestock buildings, the concentration of N2O and CH4 emitted are not constant over a day or seasons too [1]. To achieve the pollutants abatement, a catalyst constituted by a mixture of adsorbent support and active phase is proposed. This catalytic system will be capable of trapping N2O and CH4 and activating oxidation or decomposition processes. This improved process effectiveness is achieved. The aim of this project is to develop a simple, economical technology for catalytic treatment of nitrous oxide (N2O) and methane (CH4) emissions produced inside farm buildings used for intensive livestock breeding