碳酸氢钠助力航运业低碳转型

Baking powder rises as new green remedy for shipping

发布者:KnowMi 发布时间: 2022-11-01 09:11:21 点击量: 1040 来源:SodaFlexx

    碳酸氢钠,俗称小苏打,是人们在烘焙时常用到的一种膨松剂。现在,它被用在了船舶的废气处理系统当中。总部位于伦敦的设备提供商SodaFlexx提出了一个新设想:用碳酸氢钠粉末来处理船舶废气。受到陆上废气处理技术的启发,他们将碳酸氢钠粉末直接注入废气流中以中和硫氧化合物。发生化学反应后,硫氧化物(SOx)将转化为稳定且无毒的硫酸钠晶体,然后被安全释放到大气中,或者通过SodaFlexx研发的颗粒捕捉器进行收集并在岸上回收。据悉,SodaFlexx的干式废气净化系统已经成功投入实际使用。



    Sodium bicarbonate, a substance best known for its baking qualities, has emerged as a new scrubber solution. London-based SodaFlexx has created a concept to treat exhaust gas emissions from ships with sodium bicarbonate powder. The concept was adapted from proven land-based technology, where sodium bicarbonate powder is injected directly into the exhaust gas stream to neutralize sulphur compounds. A chemical reaction occurs converting SOx to a highly stable and non-toxic salt, sodium sulphate which is then either released safely into the atmosphere or can be captured by SodaFlexx’s bespoke cyclone particulate capture hybrid system and recycled ashore. The the SodaFlexx dry exhaust gas cleaning system has proved so successful by being thrown into an actual usage.


Sodium Bicarbonate P.n. 碳酸氢钠,小苏打

美 /ˌsəʊdiəm baɪˈkɑːrbənət/ 

英 /ˌsəʊdiəm baɪˈkɑːbənət/ 

碳酸氢钠正式英文化学名称为 Sodium hydrogen carbonate,对比纯碳酸酯,每一单位碳酸氢钠含两倍的碳酸酯,故又名Sodium bicarbonate。


Tips:碳酸氢钠(NaHCO3)可以用作干法脱硫的吸附剂。它通过化学吸附能去除烟气中的酸性污染物,同时,它还可以通过物理吸附去除一些无机和有机微量物质,文中提及的工艺就是将碳酸氢钠细粉直接喷入高温烟气中。干法脱硫具有工艺简单、无污水处理、能耗低、腐蚀性小等优点。