The effect of fluorine additives into Pt/WO3-ZrO2-Al2O3 catalysts for n-hexane isomerization

NANOSCIENCE AND NANOTECHNOLOGY: NANO-SciTech Pub Date : 2019-08-28 DOI:10.1063/1.5122031

V. Shkurenok, M. Smolikov, D. I. Kir’yanov, T. Gulyaeva, I. V. Muromtsev, A. Belyi

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引用次数: 1

Abstract

The effect of fluorine additives (1.5–3 wt.%) in Pt/WO3−ZrO2−Al2O3 catalysts on n−hexane isomerization was studied. The best performance was obtained in the presence of catalyst with the fluorine content 2.5 wt.% at 240°C: conversion – 80.0 %, selectivity – 88.5%, yield of stable catalyzate – 93.2 wt.%, yield of the sum of hexane isomers – 70.8 wt.%, and yield of high-octane dimethylbutanes (DMB) – 16.1 wt.%. Fluorine additives were shown to change the unit cell parameter a of tetragonal zirconia due to the substitution of oxygen atoms by fluorine atoms.The effect of fluorine additives (1.5–3 wt.%) in Pt/WO3−ZrO2−Al2O3 catalysts on n−hexane isomerization was studied. The best performance was obtained in the presence of catalyst with the fluorine content 2.5 wt.% at 240°C: conversion – 80.0 %, selectivity – 88.5%, yield of stable catalyzate – 93.2 wt.%, yield of the sum of hexane isomers – 70.8 wt.%, and yield of high-octane dimethylbutanes (DMB) – 16.1 wt.%. Fluorine additives were shown to change the unit cell parameter a of tetragonal zirconia due to the substitution of oxygen atoms by fluorine atoms.

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氟添加剂对Pt/WO3-ZrO2-Al2O3催化剂正己烷异构化的影响

研究了Pt/WO3 - ZrO2 - Al2O3催化剂中添加氟(1.5 ~ 3 wt.%)对正己烷异构化的影响。在含氟量为2.5 wt.%，反应温度为240℃时，反应性能最佳:转化率为80.0%，选择性为88.5%，稳定催化剂收率为93.2 wt.%，己烷异构体总收率为70.8 wt.%，高辛烷值二甲基丁烷(DMB)收率为16.1 wt.%。氟添加剂由于氧原子被氟原子取代而改变了四边形氧化锆的晶胞参数a。研究了Pt/WO3 - ZrO2 - Al2O3催化剂中添加氟(1.5 ~ 3 wt.%)对正己烷异构化的影响。在含氟量为2.5 wt.%，反应温度为240℃时，反应性能最佳:转化率为80.0%，选择性为88.5%，稳定催化剂收率为93.2 wt.%，己烷异构体总收率为70.8 wt.%，高辛烷值二甲基丁烷(DMB)收率为16.1 wt.%。氟添加剂由于氧原子被氟原子取代而改变了四边形氧化锆的晶胞参数a。

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NANOSCIENCE AND NANOTECHNOLOGY: NANO-SciTech

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