Preparation and H2S absorption properties of various ZnO nanostructures for ultra cleanup of hot coal gas
A nano-size zinc oxide was formulated for the effective removal of a very low concentration (under 50 ppmv) of sulfur compounds (H2S) contained in a gasified fuel gas and their reactivity was also investigated in this study. They were prepared by a matrix-assisted method with zinc acetate (Zn (C2H3O2)2 2H2O) precursor. An active carbon was used as a matrix and zinc acetate was selected as a precursor. The amount of the doped zinc over the activated carbon was about 10-40 wt％. Amount of the zinc doped over the activated carbon exerted an influence on the morphology of zinc oxide nanostructure. The ZnO nanostructures of various morphology were performed their reactivity test using fixed bed reactor. Their reactivity increased as their sizes became smaller and their surface areas of the sorbents were larger. Most prepared nano-size zinc oxides showed an excellent performance for the removal of very low concentration H2S.
Zinc oxide Nanostructure Zinc acetate Matrix assisted method Desulfurization
You Jin Lee No Kuk Park Gi Bo Han Suk Hoon Yoon Si Ok Ryu Tae Jin Lee
National Research Laboratory, School of Chemical Engineering and Technology, Yeungnam University, 214-1 Dae-dong, Gyeongsan, Gyeongbuk 712-749, KOREA
国际会议
The 5th International Conference on Separation Science and Technology(第五届国际分离科学与技术会议)
北京
英文
2007-10-14（万方平台首次上网日期，不代表论文的发表时间）