摘要
针对不同方法制备的镍基非加氢脱硫吸附剂及改性前后的吸附性能进行评价。在常压下,以100×10-6噻吩的苯溶液为模型原料油,氧化镍作为吸附剂的活性组分,评价各吸附剂的脱硫性能,分析等温吸附曲线,改性前后、再生前后脱硫性能的变化规律。结果表明,不同方法制备的吸附剂吸附效果大不相同。沉淀法制备的吸附剂表面活性组分分布均匀,半峰宽较小,结晶度高,吸附硫容大,操作简便。助剂氧化锌的添加起到较好的助催化效果,且能增强活性组分与载体之间的相互作用。沉淀法制备的吸附剂的再生性能优异,能够很好的重复利用。
The main contents of this paper were to study the preparation methods of different nickel-based desulfurization adsorbents and evaluate the performance before and after modification.A solution of100ppm thiophene in benzene was used as the model solution.Nickel oxidein adsorbent was active component.The desulfurization performance of each adsorbent was evaluated,and the isothermal adsorption curve was analyzed.The changes of desulfurization performance before and after modification and regeneration were analyzed.The results showed that the adsorption effect of the adsorbents prepared by different methods was different.The surface active components of the adsorbents prepared by the precipitation method wereevenly distributed,the half width wassmall,the crystallinity was high,the adsorption capacity was large and the operation was simple.Adsorbent modified by adding zinc oxide showed better catalytic activityand the interaction between the active component and the carrier was enhanced.The regeneration performance of the adsorbent prepared by the precipitation method was excellent and could be reused very well.
作者
吴智强
罗国华
徐新
Wu Zhiqiang;Luo Guohua;Xu Xin(School of Chemical Engineering,Beijing Institute of Petrochemical Technology,Beijing102617,China;Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology,Beijing102617,China)
出处
《工业催化》
CAS
2017年第11期39-43,共5页
Industrial Catalysis
关键词
催化剂工程
镍基非加氢脱硫吸附剂
改性
再生
catalyst engineering
nickel-basednon-hydrodesulfurizationadsorbents
modification
regeneration
