Adsorption purification of HCN in closed carbide furnace tail gas by modified activated carbon

Author

Ming, Jiang ; Ping, Ning ; Yang-wei, Bai ; Hong, Yang ; Xiao-guang, Ren ; Wei, Chen ; Yan, Shi ; Lei, Wang

Author_Institution

Fac. of Environ. Sci. & Eng., Kunming Univ. of Sci. & Technol., Kunming, China

fYear

2011

fDate

22-24 April 2011

Firstpage

3850

Lastpage

3853

Abstract

For comprehensive utilization of CO contained in closed carbide furnace tail gas, the purification of HCN in the artificial tail gas mixed with pure gases was studied by means of adsorption using modified activated carbon. In range of this study the optimum conditions for preparing modified activated carbon are: NaOH concentration is 10 wt% and sulfonated cobalt phthalocyanine (CoPcS) concentration is 166.7 mg/L for activated carbon impregnation; its dryness temperature is 100°C. Scanning electron microscopy (SEM) and Raman spectroscopy analyses indicate that HCN reacts on the surface of the modified activated carbon. The equilibrium adsorption capacity increases, however the structure of CoPcS has not been changed.

Keywords

Raman spectroscopy; adsorption; carbon compounds; cobalt compounds; furnaces; hydrogen; purification; scanning electron microscopy; sodium compounds; C; HCN; NaOH; Raman spectroscopy; SEM; activated carbon impregnation; adsorption purification; carbide furnace tail gas; modified activated carbon; scanning electron microscopy; sulfonated cobalt phthalocyanine; temperature 100 C; Carbon; Cobalt; Furnaces; Purification; Raman scattering; Scanning electron microscopy; Spectroscopy; adsorption; closed carbide furnace tail gas; hydrogen cyanide; modified activated carbon; sulfonated cobalt phthalocyanine;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on

Conference_Location

Lushan

Print_ISBN

978-1-4577-0289-1

Type

conf

DOI

10.1109/ICETCE.2011.5775940

Filename

5775940