One step erythritol hydrodeoxygenation towards green butadiene over mixed molybdenum-rhenium supported catalysts

IF 4.7 2区化学 Q2 CHEMISTRY, PHYSICAL

Applied Catalysis A: General Pub Date : 2025-03-23 DOI:10.1016/j.apcata.2025.120234

G. Ioannidou , M. Drexler , U. Arnold , J. Sauer , A.A. Lemonidou

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引用次数: 0

Abstract

This work explores the one-step catalytic process of erythritol hydrodeoxygenation (HDO) to 1,3-butadiene over supported Re and mixed Mo-Re oxides on carbon black. Catalyst screening under reducing H₂ atmosphere was performed in liquid phase under batch conditions. Mixed Mo-Re catalysts show the best HDO performance, as they are active towards C-O scission with mild hydrogenation activity, contributing to preservation of the CC bond of 1,3-butadiene. The effect of reaction parameters was exploited over the promising 5Mo-10Re/CB catalyst. 3-butene-1,2-diol is the main intermediate to 1,3-butadiene formed at short reaction times while longer reaction times lead to butenes. Maximum 1,3-butadiene selectivity 93 % was achieved at 51 % erythritol conversion at 140 °C, 60 bar and 5 h reaction time. XPS measurements of fresh and used materials indicated that the upper surface layer consists of fully and partially reduced Mo and Re species, which according to CH₃OH-TPSR host both redox and acid sites.

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来源期刊

Applied Catalysis A: General 化学-环境科学

CiteScore

9.00

自引率

5.50%

发文量

415

审稿时长

24 days

期刊介绍： Applied Catalysis A: General publishes original papers on all aspects of catalysis of basic and practical interest to chemical scientists in both industrial and academic fields, with an emphasis onnew understanding of catalysts and catalytic reactions, new catalytic materials, new techniques, and new processes, especially those that have potential practical implications. Papers that report results of a thorough study or optimization of systems or processes that are well understood, widely studied, or minor variations of known ones are discouraged. Authors should include statements in a separate section "Justification for Publication" of how the manuscript fits the scope of the journal in the cover letter to the editors. Submissions without such justification will be rejected without review.