Sn-imidazolates supported on boron and nitrogen-doped activated carbon as novel catalysts for acetylene hydrochlorination. Issue 9 (1st September 2020)

• Record Type: Journal Article
• Authors: Wu, Yibo; Li, Fuxiang; Xue, Jianwei; Lv, Zhiping
• Is Part Of: Chemical engineering communications. Volume 207:Issue 9(2020)
• Page Start: 1203
• Page End: 1215
• Publication Date: 2020-09-01
• Subjects: 2-methylimidazole -- Acetylene hydrochlorination -- Activated carbon -- Boron and nitrogen -- SnCl2 -- Sn-imidazolates; Chemical engineering -- Periodicals; 660.205
• DOI: 10.1080/00986445.2019.1641700
• Languages: English
• ISSNs: 0098-6445

Abstract

Abstract: This study mainly reports on the preparation of Sn-imidazolates (Sn(Im) n ) supported on boron and nitrogen-doped activated carbon (AC), which proved to be highly active catalysts for the acetylene hydrochlorination. The obtained materials were characterized by FTIR spectroscopy, X-ray diffraction, N2 physisorption, scanning electron microscopy, thermogravimetry, temperature programed desorption, and X-ray photoelectron spectroscopy. The catalytic results revealed that the Sn(Im) n /AC materials manifest enhanced activity and long-term stability than SnCl2 /AC catalyst. Regarding the lifetime, 10%Sn(Im) n /(10%BNAC-800) catalyst, exhibiting an acetylene conversion of 80% after 40 h of reaction, is more promising in comparison with 10%Sn(Im) n /AC. These results indicate that the use of 2-methylimidazole improve the activity and stability of SnCl2 /AC catalysts in the hydrochlorination of acetylene. Particularly, the supports modified with boric acid and melamine can effectively increase the lifetime of Sn(Im) n /AC catalysts.