Research Progress on Higher Alcohols Synthesis From Syngas

被引：0
|
作者：
Wu, Chongchong [1 ]
Wang, Wenbo [1 ]
Li, Hongbao [1 ]
Xin, Jing [1 ]
Li, Yongheng [1 ]
Su, Mengjun [1 ]
Zhu, Yuanbao [1 ]
机构：
[1] CNOOC Institute of Chemicals & Advanced Materials, Beijing,102209, China
来源：
Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section) | 2024年 / 40卷 / 06期
关键词：
Converting syngas into higher alcohols can effectively enhance the added-valuc of coal based produets; achieve the clean utilization of coal resources; and reduce the dependence of higher alcohol synthesis on petroleum pathways. The direct preparation of higher alcohols from syngas is constrained by catalyst Performance. The catalytic reaction mechanisms for higher alcohol synthesis from syngas arc comprehensively summarized; including methanol homologation mechanism; olefin hydration mechanism; condensation mechanism; and insertion mechanism. In addition; the research progress in four types of catalysts for higher alcohols synthesis; i.e; rhodium-based catalysts; molybdenum-based catalysts; modified methanol synthesis catalysts; and modified Fischer-Tropsch synthesis catalysts; is elaborated. The preparation of higher alcohols from syngas follows the CO insertion mechanism on Rh catalysts. The addition of alkali metals on molybdenum-based catalysts can facilitatc CO insertion; thereby promoting polyalcohol formation. Moreovcr; adding alkali metals to the modified methanol synthesis catalysts can ncutralizc the aeidity on the catalyst surface; suppress undesired reactions; and enhance higher alcohol produetion. Additionally; the combination of alcohol synthesis catalysts and Fischer-Tropsch synthesis catalysts can promote syngas conversion to higher alcohols. The rcacüon mechanism analysis provides a theoretical foundation for designing catalysts with high catalytic activity and high selectivity for higher alcohol synthesis. © 2024 Editorial Office of Acta Petrolei Sinica. All rights reserved;
D O I：
10.3969/j.issn.1001-8719.2024.06.021
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页码：1695 / 1706
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