SO2 Storage by CuTa2O6: Synergetic Oxidative Sorption

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Masayuki Toyota¹  Takashi Aida¹ 

[1] Department of Chemical Engineering, Tokyo Institute of Technology

关键词: SO2 Storage;    CuTa2O6;    Synergetic Oxidative Sorption;    Amorphous;    Super Acid;   

DOI  :  10.1252/jcej.07WE209

来源: Maruzen Company Ltd

【 摘 要 】

References(10)SO2 storage was performed on CuTa2O6 and its derivatives by repeating the cycle of oxidative sorption (SO2, 1000 ppm; O2, 3%) and reductive desorption (H2, 10%). Tantalum promoted the sorption of SO2 on CuTa2O6, and the synergetic oxidative sorption of copper and tantalum was investigated after several cycles. Observation of the specific surface areas of samples revealed that SO2 was absorbed also in the bulk of catalysts through synergetic oxidative sorption. XRD observation showed that the samples undergoing synergetic oxidative sorption were amorphous. Through observation of ammonia-TPD, it was found that the samples were comparable to super acid. Synergetic oxidative sorption was investigated on the physical mixture of copper oxide and tantalum oxide, as well as on the mixed oxides of CuO and MO (M = Nb, Cr, Ti and Zr).

【 授权许可】

Unknown