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现行 3921(RP-682)
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Operating Characteristics of a Flare/Oxidiser for the Disposal of Ammonia from an Industrial Refrigeration Facility 用于处理工业制冷设施中氨的火炬/氧化器的运行特性
工业制冷设施释放的氨的处理可通过在火炬或氧化剂中燃烧来完成。制造了一个实验室,其中文丘里管部分将燃烧区与混合室分离,在混合室中混合进入的供气。使用天然气作为引燃燃料,火炬在整个可燃区域内运行,测量燃烧温度和排气产物。对于贫燃料(氨气和天然气)燃烧条件和氨气供应量小于总体积的10%,氨气排气浓度小于5ppm。然而,同一地区的氮氧化物浓度有时超过1000ppm。含氨的矿物油、石蜡油和聚酯基油(重量浓度为20%及以上)降低了氨的可燃下限(LFL)- 空气混合物的体积百分比分别为12%、9%和8%。当氨与天然气的质量比小于0.5时,向天然气引燃火焰喷射液氨产生的废气氨浓度小于5ppm。关键词:1995年,氨,性质,氧化,工业,制冷,燃烧,天然气,含量,氮氧化物,可燃性,碳氢化合物,测量,二氧化碳,一氧化碳,氧气,混合物,垃圾处理:ASHRAE Trans。1995年,第101卷,第2部分,论文编号3921(RP-682),463-475,图12。,裁判。
The disposal of ammonia released from an industrial refrigeration facility may be accomplished by combustion in a flare or oxidiser. An experimental chamber was fabricated whereby a venturi section separated the combustion zone from the mixing chamber where the supply gases entering were mixed. Using natural gas as the pilot fuel, the flare was operated over the entire flammable region where the combustion temperature and exhaust products were measured. For lean fuel (ammonia and natural gas) combustion conditions and ammonia supply content less than 10% of the total by volume, the ammonia exhaust concentrations were less that 5ppm. However, NOx concentrations over the same region sometimes exceeded 1,000ppm. Mineral, paraffinic, and polyester-based oils in weight concentrations 20% and above with ammonia reduced the lower flammability limit (LFL) of ammonia-air mixtures to 12%, 9%, and 8% by volume, respectively. The injection of liquid ammonia to the natural gas pilot flame yielded exhaust ammonia concentrations less than 5ppm when ammonia to natural gas mass ratios were less than 0.5.KEYWORDS: year 1995, ammonia, properties, oxidising, industrial, refrigeration, combustion, natural gas, content, nitrogen oxides, flammability, hydrocarbons, measuring, carbon dioxide, carbon monoxide, oxygen, mixtures, refuse disposal
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