粉煤灰衍生沸石负载活性组分制备Fe-Cu/NFA对硫化氢脱除性能的研究  

Study on removal performance of H2S:Fe-Cu/NFA catalyst supported by coal fly ash-derivative zeolite

作　　者：冯东方 张智宏[1] 郭壮壮 Feng Dongfang;Zhang Zhihong;Guo Zhuangzhuang(School of Petrochemical Engineering,Changzhou University,Changzhou 213164)

机构地区：[1]常州大学石油化工学院,常州213164

出　　处：《化工新型材料》2022年第6期203-208,214,共7页New Chemical Materials

基　　金：江苏省产学研前瞻项目(BY2014037-10)。

摘　　要：以氢氧化钠改性粉煤灰(FA)得到衍生沸石为载体,采用直接沉淀法制备反应的终点pH为10的脱硫剂。采用扫描电镜、X射线衍射、氮气吸附-脱附、红外吸收光谱仪、固体紫外漫反射等表征手段考察了其脱硫性能。结果表明:FA衍生沸石作为载体负载铁并添加一定比例的铜,制备的脱硫剂比表面积增加,孔体积以及孔隙率增大,铁氧化物分散性提高,有效地提高脱硫剂的脱硫性能,最大硫容可达到281.3mg/g。Fly ash(FA)was modified by sodium hydroxide to obtain derivative zeolite which was used as carrier,and the Fe-Cu/NFA desulfurizer,the end point of the reaction at pH=10,was prepared by using direct precipitation method.Using SEM,XRD,BET,FT-IR,DR UV-Vis and other characterization methods,the desulfurization performance was investigated at room temperature.The results showed that derivative zeolite was used as a carrier to support iron oxide and added a certain proportion of copper,the pore volume,porosities,and dispersibility of the prepared desulfurizer were increased,which effectively improveed the desulfurization performance of the desulfurizer.The sulfur capacity could reach 281.3mg/g.

关 键 词：粉煤灰 脱硫剂 沸石 比表面积 低聚态 

分 类 号：TB34[一般工业技术—材料科学与工程]