Thermodynamic analysis of products distribution for propane aromatization process

Peter, E.E.; Atta, A.Y.; Bello, Mustapha Mohammed; Aderemi, B.O.; El-Yakub, B.J.

doi:10.1016/j.jksues.2020.07.003

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…Aromatization is an endothermic reaction and the energy-demanding process makes temperature an important process condition. Temperature from 500 to 580 °C favour catalytic performance as it enhances dehydrogenation, oligomerization and cyclization with both increase in propane conversion and aromatic selectivity [30,48,56]. It can be seen that C 9+ cracked to lower aromatics which were clearly seen in toluene, benzene, o and m-xylene increase in Fig.…”

Section: Effect Of Temperature and Feed Flow Rate On Propane Aromatiz...mentioning

confidence: 85%

Improved aromatic yield and toluene selectivity in propane aromatization over Zn–Co/ZSM-5: effect of metal composition and process conditions

et al. 2022

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In this report, a catalytic enhanced-conventional process production background was employed to determine the most cost-effective and environmentally friendly techniques to improve the catalytic production of toluene and other aromatic compounds from propane aromatization. 2 wt% of zinc was co-impregnated with 1-3 wt% of cobalt on HZSM-5. Characterizations and analysis showed that catalysts are crystalline and microporous. Propane conversion was carried out at 540 °C, 1200 ml/g-h gas hourly space velocity and atmospheric pressure over Zn-Co/ZSM-5 bimetallic catalysts. Toluene selectivity in the aromatic products was greatly improved and sustained significantly together with other aromatic products. Catalytic conversion of propane and aromatic yield over Zn-Co/ZSM-5 was improved and stabilized due to metallic collaboration on HZSM-5. Aromatic yield averaged 46, 32, and 36%, respectively, for 1-3 wt% Co in Zn-Co/ ZSM-5 bimetallic catalyst. Average toluene selectivity in the aromatic products for 12 h time on stream from 60, 50 and 51% for 1-3 wt% Co loading. The threshold loading of cobalt with zinc was 2% above which the general aromatic selectivity declined. A decrease in conversion from 73 to 15% was observed for flowrate increase from 6 to 35 ml min −1 and an increase in aromatic selectivity from 80 to 87%. An increase in temperature of 500-560 °C increased catalytic performance, 32-47% for propane conver-sion, and 79-86% aromatic selectivity. KeywordsPropane conversion • Aromatic yield • Toluene selectivity • Zn-Co/ZSM-5 Abbreviations BET Brunauer-Emmett-Teller BTEX Benzene toluene ethylbenzene xylene FTIR Fourier transform infra-red H 2 -TPR Hydrogen-temperature programming reduction SEM Scanning slmctron microscopy TEM Transmission electron microscopy XPS X-ray photoelectron spectroscopy XRD X-ray diffraction XRF X-ray fluorescence * G. G. Oseke

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Section: Effect Of Temperature and Feed Flow Rate On Propane Aromatiz...mentioning

confidence: 85%

Improved aromatic yield and toluene selectivity in propane aromatization over Zn–Co/ZSM-5: effect of metal composition and process conditions

et al. 2022

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Reactivity of methoxy species towards methylation and oligomerization in Cu-zeolite systems

Solemsli,

Berdiell,

Prodinger

et al. 2024

Catalysis Today

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Energy performance evaluation of variable-speed milk refrigerator using propane (R290)

Kasera

Nayak

Bhaduri

2024

Journal of King Saud University - Engineering Sciences

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Thermodynamic analysis of products distribution for propane aromatization process

Cited by 3 publications

References 20 publications

Improved aromatic yield and toluene selectivity in propane aromatization over Zn–Co/ZSM-5: effect of metal composition and process conditions

Improved aromatic yield and toluene selectivity in propane aromatization over Zn–Co/ZSM-5: effect of metal composition and process conditions

Reactivity of methoxy species towards methylation and oligomerization in Cu-zeolite systems

Energy performance evaluation of variable-speed milk refrigerator using propane (R290)

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