Nitrogen (NO_X) and sulfur (SO_X) oxides, the major gaseous pollutants emitted from fossil fuel combustion, have significant health and environmental concerns. Environmental regulations limit these pollutant emissions to tolerable levels. Currently, these pollutants are treated by flue gas desulfurization (SO_X removal) and selective catalytic reduction (NO_X removal) processes. However, these technologies require large footprints, use expensive catalysts, and operate under high working temperatures. A new catalyst is reported herein, based on sulfur-enriched oil emulsified with water, where the active catalytic species are sulfur-based oxides. The catalyst has been developed using O₂ as the oxidation reagent in a low-temperature wet scrubber rather than H₂O₂ or O₃ that are presently used. The catalytically oxidized pollutants are converted to produce ammonium fertilizers by NH₄OH addition. As a result of treatment with this novel catalyst, we observed reductions in emissions of SO_X and NO_X of >85% and 23%, respectively. The catalyst production and the wet scrubbing process are discussed in detail.

中文翻译：

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基于乳化液中富硫有机油的NO _X和SO _X烟气处理系统

氮氧化物（NO _X）和硫氧化物（SO _X）是化石燃料燃烧产生的主要气体污染物，对健康和环境有重大影响。环境法规将这些污染物排放限制在可容忍的水平。当前，这些污染物通过烟气脱硫（SO _X去除）和选择性催化还原（NO _X去除）过程进行处理。然而，这些技术需要大的占地面积，使用昂贵的催化剂，并且在高工作温度下操作。本文报道了一种新的催化剂，其基于用水乳化的富硫油，其中活性催化物质是硫基氧化物。催化剂是使用O ₂开发的作为低温湿式洗涤塔中的氧化剂，而不是目前使用的H ₂ O ₂或O ₃。通过添加NH ₄ OH，将催化氧化的污染物转化为氨肥。使用这种新型催化剂进行处理的结果是，我们观察到SO _X和NO _X的排放量分别减少了> 85％和23％。详细讨论了催化剂的生产和湿法洗涤过程。