摘要
为了满足建立新型清洁社会和能源节约型社会的要求,以经过脱硝处理的焦化烟囱废气作为废气源,开发了一套年产130万吨含硫废气深度脱硫并予以资源化利用技术。通过氨法脱硫-NADS-磺化三联工艺脱除废气中的SO2,并利用脱除的硫生产对甲苯磺酸以及副产物硫酸铵。采用Aspen plus软件实现了各工段的模拟计算,计算结果表明废气中的SO2可脱至10 mg/Nm^3以下。此外对脱硫塔、酸解塔的结构和操作条件进行改进和创新,实现SO2的富集与再生,硫酸铵的资源化则采用双效蒸发结晶工艺,通过以上创新与改进使工艺得到进一步的优化。
In order to meet the requirements of establishing a new clean and energy-saving society,a process of deep desulfurization with annual output of 1.3 million tons of sulfur-containing waste gas was developed using denitrified coking stack waster gas as the source of waste gas.SO2 in the flue waste gas was removed by the triple-process of ammonia desulfurization-NADS-sulfonation,and p-toluenesulfonic acid and by-product ammonium sulfate were produced by using the removed sulfur.The whole process was simulated by Aspen Plus software.The calculated results showed SO2 was removed by 10 mg/Nm^3 in the waste gas to meet the requirement of SO2 emission.In addition,the structure and operation conditions of desulfurizer and acidolysis tower were improved and innovated to realize SO2 enrichment and regeneration.And the double effect evaporation crystallization process was adopted for ammonium sulfate resource utilization.The process was further optimized through the above innovation and improvement.
作者
陈余
陈冉
陈云逸
林晓韵
韦欣怡
Chen Yu;Chen Ran;Chen Yunyi;Lin Xiaoyun;Wei Xinyi(Beijing University of Chemical and Technology,Beijing 100029,China)
出处
《化学反应工程与工艺》
CAS
CSCD
北大核心
2018年第6期529-534,共6页
Chemical Reaction Engineering and Technology
关键词
含硫废气
脱硫
对甲苯磺酸
硫酸铵
sulfur containing waste gas
desulfurization
p-toluenesulphonic acid
ammonium sulphate
