Na2WO4/Mn/SiO2 catalyst for oxidative dehydrogenation of ethane using CO2 as oxidant

• DOI: 10.1016/j.cattod.2009.07.074
• Publication Date: 2009-08-14T09:39:40Z
• Authors: Jianqiang Zhu; Song Qin; Songtao Ren; Xiaoxi Peng; Dongmei Tong; Changwei Hu
• Keywords: Molar ratio; Alkane

Abstract Co-promoted Na 2 WO 4 /Mn/SiO 2 catalysts were prepared and used in the reaction of C 2 H 6 with CO 2 . XRD, XPS techniques were employed to study the structure of the fresh and post-reacted catalysts. It was found that the existence of Co was in favor of the reforming of C 2 H 6 to synthesis gas. The Co species were reduced into metal Co, which might act as the active phase for CO production. Over Co-promoted Na 2 WO 4 /Mn/SiO 2 catalysts in the reaction process, the oxidative dehydrogenation and reforming of ethane by CO 2 might be tuned. Under the conditions of C 2 H 6 /CO 2 = 1/5, F = 60 ml/min, 750 °C, the catalyst dosage of 0.3 g, products with molar ratio of C 2 H 4 /CO/H 2 = 1/1/1 could be obtained from C 2 H 6 and CO 2 , and could be used directly into hydroformylation to propanal.