Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, Avenue du Général Leclerc, CS 50837, 35708 Rennes Cedex 7, France.
Environ Technol. 2009 Dec 14;30(14):1511-7. doi: 10.1080/09593330903241946.
A lab-scale pilot plant was developed in order to measure the efficiency of some odour-neutralizing products for the removal of odorous compounds. Experiments were carried out on gas and liquid flows in two configurations: co-current and counter-current, which differ in the values of the drop diameter and the contact time, leading to different behaviours between highly water-soluble compounds like ammonia and other compounds like sulphurous compounds. Mass transfer was shown to be modified by the presence of neutralizing products as a result of their pH and surface tension. Few chemical reactions, except for acidic or basic ones, could be highlighted. Olfactometric analyses were carried out and showed that, because of possible confusion between odours caused by the neutralizing product and odours caused by the by-products, it was difficult to conclude that an obvious relation existed between physico-chemical and olfactometric efficiencies.
为了测量一些气味中和产品去除臭味化合物的效率，开发了一个实验室规模的中试工厂。在两种配置下进行了气体和液体流动的实验：并流和逆流，它们在液滴直径和接触时间的值上有所不同，导致像氨这样的高水溶性化合物和像亚硫酸盐这样的其他化合物之间的行为不同。传质由于中和产品的 pH 值和表面张力而发生变化。除了酸性或碱性反应之外，很少能发现其他化学反应。进行了嗅闻分析，结果表明，由于中和产品和副产物引起的气味之间可能存在混淆，因此很难得出物理化学和嗅闻效率之间存在明显关系的结论。
