使用PO₄/Nb₂O催化剂通过气相甘油脱水制备丙烯醛

Acrolein Production by Gas-Phase Glycerol Dehydration Using PO₄/Nb₂O Catalysts.

作者信息

Lee Kyu Am, Ryoo HeeKyoung, Ma Byung Chol, Kim Youngchul

机构信息

Department of Advanced Chemicals Engineering, Chonnam National University, 77 Yongbong-ro Gwangju 61186, Republic of Korea.

School of Chemical Engineering and the Research Institute for Catalysis, Chonnam National University, 77 Yongbong-ro, Buk-gu Gwangju 61186, Republic of Korea.

出版信息

J Nanosci Nanotechnol. 2018 Feb 1;18(2):1312-1315. doi: 10.1166/jnn.2018.14897.

DOI:10.1166/jnn.2018.14897

PMID:29448580

Abstract

In this study, modified niobium oxide were prepared to study the addictive effects on the catalytic performance for gas-phase glycerol dehydration. The catalysts were characterized by N2 adsorption/desorption, XRD, NH3-TPD, FT-IR. The amount of phosphoric acid was up to 50 wt% in niobium. As a result, the highest glycerol conversion was achieved over 20 wt% PO4/Nb2O5. It indicates that the optimal amount of phosphoric acid leads the catalyst to have appropriate acidity which is an important factor for gas-phase glycerol dehydration.

摘要

在本研究中，制备了改性氧化铌以研究其对气相甘油脱水催化性能的影响。通过N2吸附/脱附、XRD、NH3-TPD、FT-IR对催化剂进行了表征。铌中磷酸的含量高达50 wt%。结果，在20 wt% PO4/Nb2O5时实现了最高的甘油转化率。这表明磷酸的最佳用量使催化剂具有合适的酸度，这是气相甘油脱水的一个重要因素。