精品素人自拍偷拍|91精品国产av国产|杨思敏伦理片|91制片厂杨柳信息|亚洲激情综合|蜜桃影像传媒ios下载|亚洲精品视频在线看|打屁股色网站|爱豆文化传媒影片|国产欧美精品一区二区色,明星换脸 av,国产日韩成人av,亚洲成a人影院

首頁» 往期文章» 2017» Issue 2» 石油化學與化工

Petroleum Science >2017,??Issue 2:??424-433 DOI: https://doi.org/10.1007/s12182-017-0150-9

The surface properties of aluminated meso–macroporous silica and its catalytic performance as hydrodesulfurization catalyst support Open?Access

文章信息

pdf下載
作者：Zhi-Gang Wang,Jia-Ning Pei,Sheng-Li Chen,Zheng Zhou,Gui-Mei Yuan,Zhi-Qing Wang,Guo-Qiang Ren and Hong-Jun Jiang
作者單位：

State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, People’s Republic of China;State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, People’s Republic of China;State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, People’s Republic of China;State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, People’s Republic of China;State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, People’s Republic of China;Shanghai Petrochemical Company of Sinopec, Jinshan, Shanghai 200540, People’s Republic of China;Shanghai Petrochemical Company of Sinopec, Jinshan, Shanghai 200540, People’s Republic of China;Shanghai Petrochemical Company of Sinopec, Jinshan, Shanghai 200540, People’s Republic of China

投稿時間：2016-10-21
引用方式：Wang, ZG., Pei, JN., Chen, SL. et al. Pet. Sci. (2017) 14: 424. https://doi.org/10.1007/s12182-017-0150-9

文章摘要

Aluminated mesoporous silica was prepared by multiple post-grafting of alumina onto uniform mesoporous SiO2, which was assembled from monodisperse SiO2 microspheres. Hydrodesulfurization (HDS) catalyst was prepared by loading Ni and Mo active components onto the aluminated uniform mesoporous SiO2, and its HDS catalytic performance was evaluated using hydrodesulfurization of dibenzothiophene as the probe reaction at 300 ℃ and 6.0 MPa in a tubular reactor. The samples were characterized by N2 physisorption, scanning electronic microscopy, Fourier transform infrared spectrum, X-ray diffraction (XRD), temperature-programmed desorption of ammonia (NH3-TPD), 27Al nuclear magnetic resonance (27Al-NMR) and high-resolution transmission electron microscopy (HRTEM). The results showed that the Si–OH group content of SiO2 was mainly dependent on the pretreatment conditions and had significant influence on the activity of the NiMo catalyst. The surface properties of the aluminated SiO2 varied with the Al2O3-grafting cycles. Generally after four cycles of grafting, the aluminated SiO2 behaved like amorphous alumina. In addition, plotting of activity of NiMo catalysts supported on aluminated meso– macroporous silica materials against the Al2O3-grafting cycle yields a volcano curve.

關鍵詞

    Aluminum grafting Hydrodesulfurization Surface properties Catalyst support SiO2