物理化学学报Issue(1)：166-172,7.DOI:10.3866/PKU.WHXB201411241
Cu对K-LaZrO2异丁醇合成催化剂的影响
Influence of Cu on the K-LaZrO2 Catalyst for Isobutanol Synthesis
摘要
Abstract
The K-LaZrO2 and K-CuLaZrO2 catalysts used for the synthesis of isobutanol from syngas have been characterized by X-ray diffraction (XRD), temperature programmed desorption (TPD), X-ray photoelectron spectrometry (XPS), Fourier transform infrared (FTIR) spectroscopy, and chemical enrichment methods. The results of these analyses indicated that a solid solution of Cu-Zr was formed after the addition of Cu, and that the CuO was wel dispersed. Furthermore, the addition of Cu inhibited the formation of t-ZrO2. CO-TPD showed that the addition of Cu led to an increase in the amount of CO adsorbed by the catalyst. Furthermore, H2-TPD showed that the addition of Cu led to an increase in the amount of H2 adsorbed at low temperatures, which was related to the activity of catalyst. The results of FTIR and chemical enrichment analyses also revealed that the level of CO adsorption increased fol owing the addition of Cu, as well as amount of C1 intermediates. Taken together, these results indicated that the activity of catalyst was significantly enhanced by the addition of Cu and that the selectivity towards isobutanol increased up to 48.5% when the reaction was conducted at p=10.0 MPa, gas hourly space velocity (GHSV) = 3000 h-1, T=360 °C, and V(H2)/V(CO)=1:1.关键词
氧化铜/锆基催化剂/合成气/异丁醇Key words
CuO/ZrO2-based catalyst/Syngas/Isobutanol分类
化学化工引用本文复制引用
武应全,王思晨,解红娟,高俊文,田少鹏,韩怡卓,谭猗生..Cu对K-LaZrO2异丁醇合成催化剂的影响[J].物理化学学报,2015,(1):166-172,7.基金项目
The project was supported by the Prospective Project of Institute of Coal Chemistry, Chinese Academy of Sciences (2011SQZBJ13) and Cooperative Project of Shaanxi Yanchang Petroleum (Group) Corp. Ltd., China (JT1014SKF0003).中国科学院山西煤炭化学研究所前瞻性布局项目(2011SQZBJ13)和陕西延长石油(集团)有限责任公司合作项目(JT1014SKF0003)资助 （2011SQZBJ13）
