Ni基双金属催化剂的制备及其加氢脱氧反应性能

石油炼制与化工 ›› 2022, Vol. 53 ›› Issue (11): 65-69.

Ni基双金属催化剂的制备及其加氢脱氧反应性能

鲁玉莹,王宗宝,肖海成,徐华,张鹏,吕雉

中国石油石油化工研究院

收稿日期:2022-02-28 修回日期:2022-06-23 出版日期:2022-11-12 发布日期:2022-11-02
通讯作者: 鲁玉莹 E-mail:luyuying@petrochina.com.cn
基金资助:
中国石油天然气股份有限公司科技管理部

PREPARATION OF Ni-BASED BIMETALLIC CATALYSTS AND THEIR CATALYTIC PERFORMANCE OF HYDRODEOXYGENATION

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Received:2022-02-28 Revised:2022-06-23 Online:2022-11-12 Published:2022-11-02

摘要/Abstract

摘要： 采用浸渍法制备了一系列负载于γ-Al₂O₃上的Ni基双金属催化剂，考察助剂金属（Mo，Co，Ce）对Ni基催化剂加氢脱氧反应性能的影响。采用X射线衍射、低温N₂物理吸附、NH₃程序升温脱附、H₂程序升温还原、X射线光电子能谱等表征手段对催化剂进行表征。以正丁醇为模型化合物，在固定床微型反应装置上对催化剂的加氢脱氧性能进行评价，结果表明助剂Ce对催化剂加氢脱氧反应性能的促进作用最为显著，在210 ℃时基本实现正丁醇的完全转化，助剂Mo对C-O键的活化能力更强，对产物正丁烷的选择性明显高于其余助剂。

关键词: 镍基催化剂, 金属助剂, 正丁醇, 加氢脱氧

Abstract: A series of Ni-based bimetallic catalysts supported on γ-Al₂O₃ were prepared by impregnation method. The effects of metal promoters (Mo, Co and Ce ) on the hydrodeoxygenation（HDO）performance of Ni-based catalysts were investigated. The catalysts were characterized by XRD, N₂ physical adsorption at low temperature, NH₃-TPD, H₂-TPR and XPS. Using n-butanol as model compound, the HDO performance of catalysts was evaluated in a fixed-bed micro-reactor. The results showed that the promoter Ce had most significant effect on the HDO performance of the catalyst, the complete conversion of n-butanol was achieved at 210 ℃, while the activation of C-O bond by Mo was stronger, and the selectivity of n-butane was higher than that of other promoters.

Key words: Ni-based catalyst, metal promoters, n-butanol, hydrodeoxygenation

鲁玉莹王宗宝肖海成徐华张鹏吕雉. Ni基双金属催化剂的制备及其加氢脱氧反应性能[J]. 石油炼制与化工, 2022, 53(11): 65-69.

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