柴油吸附脱氮吸附剂的研究进展

Research progress in Adsorbent for Adsorptive Denitrogenation of Diesel Oil

吸附脱氮是目前应用比较广泛的方法之一。根据吸附剂的不同,其吸附效果也有很大的差别。吸附剂按表面极性可以分为极性吸附剂和非极性吸附剂。其中,活性氧化铝,硅胶,白土,分子筛,磷钼酸属于极性吸附剂,而活性炭属于非极性吸附剂。有些吸附剂的吸附脱氮效果还不是很理想,因此吸附剂的选择和其改性已经成为现在研究的重点。介绍了近几年来这两类柴油脱氮吸附剂的研究情况及其进展,并对未来吸附剂的研究提出了展望。

Adsorptive denitrogenation is one of the widely used methods nowadays. ITS adsorption effects are various with dryerent adsorbents. According to the surface polarity, the adsorbent can be classified as polar adsorbent and non-polar adsorbent. The activated alumina, silica gel, carclazyte, molecular sieve and molybdophosphoric acid belongs to the polar adsorbent, and the activated carbon is non-polar adsorbent. The adsorption effects of some adsorbents are not effective, therefore the choice and modification of adsorbent has become the focus of research. The recent development status and progress of these two kinds of adsorbent for adsorptive denitrogenation of diesel is introduced, and the prospects of the study on adsorbent in future are described.