Khan A R, Al-Awadi L, Al-Rashidi M S
a Environmental Pollution and Climate Program, Environment and Life Sciences Research Center , Kuwait Institute for Scientific Research , Safat , Kuwait.
J Air Waste Manag Assoc. 2016 Jun;66(6):609-18. doi: 10.1080/10962247.2016.1145154.
Petrochemical Industries Company (PIC) in Kuwait has mitigated the pollution problem of ammonia and urea dust by replacing the melting and prilling units of finished-product urea prills with an environmentally friendly granulation process. PIC has financed a research project conducted by the Coastal and Air Pollution Program's research staff at the Kuwait Institute for Scientific Research to assess the impact of pollution control strategies implemented to maintain a healthy productive environment in and around the manufacturing premises. The project was completed in three phases: the first phase included the pollution monitoring of the melting and prilling units in full operation, the second phase covered the complete shutdown period where production was halted completely and granulation units were installed, and the last phase encompassed the current modified status with granulation units in full operation. There was substantial decrease in ammonia emissions, about 72%, and a 52.7% decrease in urea emissions with the present upgrading of old melting and prilling units to a state-of-the-art technology "granulation process" for a final finished product. The other pollutants, sulfur dioxide (SO2), nitrogen oxides (NOx), and volatile organic compounds (VOCs), have not shown any significant change, as the present modification has not affected the sources of these pollutants.
Petrochemical Industries Company (PIC) in Kuwait has ammonia urea industries, and there were complaints about ammonia and urea dust pollution. PIC has resolved this problem by replacing "melting and prilling unit" of final product urea prills by more environmentally friendly "granulation unit." Environmental Pollution and Climate Program has been assigned the duty of assessing the outcome of this change and how that influenced ammonia and urea dust emissions from the urea manufacturing plant.
科威特的石化工业公司（PIC）通过用环保造粒工艺取代成品尿素颗粒的熔融造粒装置，减轻了氨和尿素粉尘的污染问题。PIC资助了科威特科学研究所沿海与空气污染项目研究人员开展的一个研究项目，以评估为在制造场所及其周边维持健康的生产环境而实施的污染控制策略的影响。该项目分三个阶段完成：第一阶段包括对全面运行的熔融造粒装置进行污染监测，第二阶段涵盖完全停产期，即生产完全停止并安装造粒装置，最后阶段包括造粒装置全面运行的当前改进状态。随着旧的熔融造粒装置升级为用于最终成品的先进技术“造粒工艺”，氨排放量大幅下降，约72%，尿素排放量下降了52.7%。其他污染物，二氧化硫（SO2）、氮氧化物（NOx）和挥发性有机化合物（VOCs），没有显示出任何显著变化，因为目前的改进没有影响这些污染物的来源。
科威特的石化工业公司（PIC）有氨尿素行业，曾有关于氨和尿素粉尘污染的投诉。PIC通过用更环保的“造粒装置”取代最终产品尿素颗粒的“熔融造粒装置”解决了这个问题。环境污染与气候项目已被赋予评估这一变化的结果以及它如何影响尿素制造厂氨和尿素粉尘排放的职责。
