Copper-Chromium Catalyst for the Hydrogenation of Furfural to Furfuryl Alcohol in Various Modes

IF 0.7 4区化学 Q4 CHEMISTRY, APPLIED

Russian Journal of Applied Chemistry Pub Date : 2026-05-04 DOI:10.1134/S1070427225602554

A. Sumina, S. Selishcheva, V. Sosnina, V. Yakovlev

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Abstract

This work presents a detailed study of an industrial CuCr catalyst used to produce furfuryl alcohol from furfural. The catalyst was tested in a flow-type reactor under two modes: gas-phase and liquid-phase. We determined the optimal process parameters: T = 100°C, P_H2(excess) = 0.4 atm for gas-phase and P_H2 = 50 atm for liquid-phase, V_cat = 4.00 cm³, d_grain = 1.00–0.80 mm, mixture with quartz 1: 1 (vol.), GHSV = 265 h^–1 (LHSV = 1 h^–1), furfural: H₂ ratio = 1 : 20 (vol.), and conducted long-term tests (50–100 h). The catalyst demonstrated high stability in the liquid-phase process and exhibited excellent reaction parameters ~100% furfural conversion and >99.4% furfuryl alcohol selectivity for 50 h. A comprehensive set of physicochemical methods was used to determine the phase composition of the catalyst, as well as the characteristics of active component formation and the reasons for deactivation during overheating and throughout the process.

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不同模式下糠醛加氢制糠醇的铜铬催化剂

本文介绍了一种用于糠醛生产糠醇的工业CuCr催化剂的详细研究。在流动式反应器中对催化剂进行了气相和液相两种模式的测试。确定了最佳工艺参数：T = 100℃，气相PH2（过量）= 0.4 atm，液相PH2 = 50 atm, Vcat = 4.00 cm³，dgrain = 1.00-0.80 mm，与石英混合物1:1 (vol.), GHSV = 265 h - 1 (LHSV = 1 h - 1)，糠醛：H2比1:20 (vol.)，并进行了长期试验（50 - 100 h）。该催化剂在液相过程中表现出较高的稳定性，在50 h内具有优异的反应参数- 100%的糠醛转化率和99.4%的糠醇选择性。采用综合的物理化学方法确定了催化剂的物相组成，以及在过热和整个过程中活性组分形成的特征和失活的原因。

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来源期刊

Russian Journal of Applied Chemistry 化学-应用化学

CiteScore

1.60

自引率

11.10%

发文量

审稿时长

2-4 weeks

期刊介绍： Russian Journal of Applied Chemistry (Zhurnal prikladnoi khimii) was founded in 1928. It covers all application problems of modern chemistry, including the structure of inorganic and organic compounds, kinetics and mechanisms of chemical reactions, problems of chemical processes and apparatus, borderline problems of chemistry, and applied research.