Regeneration of an aged hydrodesulfurization catalyst: Conventional thermal vs non-thermal plasma technology

Hawraa Srour; Elodie Devers; Adrien Mekki-Berrada; Joumana Toufaily; Tayssir Hamieh; Catherine Batiot-Dupeyrat; Ludovic Pinard

doi:10.1016/j.fuel.2021.121674

Regeneration of an aged hydrodesulfurization catalyst: Conventional thermal vs non-thermal plasma technology

Hawraa Srour, Elodie Devers, Adrien Mekki-Berrada, Joumana Toufaily, Tayssir Hamieh, Catherine Batiot-Dupeyrat^*, Ludovic Pinard^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

This study compares the regeneration efficiency of an aged industrial hydrodesulfurization catalyst (CoMoP/ Al2O3) by conventional and alternative routes: thermal oxidation versus non-thermal plasma technology (NTP). Spent, partially, and fully regenerated catalysts have been characterized by XRD, XPS, and toluene hydrogenation to measure hydrogenating activity. Complete regeneration of the HDS catalyst via NTP requires the heating of the dielectric barrier discharge plasma reactor. Total removal of coke is obtained from 250 degrees C by applying only 8.6 W/gcatalyst, against 400 degrees C by conventional thermal treatment. The hydrogenation activity of the regenerated catalyst by NTP assisted by temperature is higher than that obtained by traditional thermal regeneration practiced industrially. Plasma treatment mitigates the oxide sintering but leads to the formation of cobalt oxide species preventing Co of fully playing its role as MoS2 slabs promoter. HDS catalyst regeneration using non-thermal plasma assisted by low temperature appears as a promising alternative to thermal combustion.

Original language	English
Article number	121674
Number of pages	10
Journal	Fuel
Volume	306
DOIs	https://doi.org/10.1016/j.fuel.2021.121674
Publication status	Published - 15 Dec 2021
Externally published	Yes

Keywords

HDS catalyst
Thermal regeneration
Non-thermal plasma
Coke
SPECTROSCOPY SURFACE QUANTIFICATION
SULFIDED COMOP CATALYSTS
HYDROTREATING CATALYST
PROMOTED SITES
COMO/AL2O3
ACTIVATION
OXIDATION
TRANSFORMATION
DEACTIVATION
REACTOR

Access to Document

10.1016/j.fuel.2021.121674Licence: Free access - publisher

Cite this

@article{0449b587defb48fabca59fad422b40d5,

title = "Regeneration of an aged hydrodesulfurization catalyst: Conventional thermal vs non-thermal plasma technology",

abstract = "This study compares the regeneration efficiency of an aged industrial hydrodesulfurization catalyst (CoMoP/ Al2O3) by conventional and alternative routes: thermal oxidation versus non-thermal plasma technology (NTP). Spent, partially, and fully regenerated catalysts have been characterized by XRD, XPS, and toluene hydrogenation to measure hydrogenating activity. Complete regeneration of the HDS catalyst via NTP requires the heating of the dielectric barrier discharge plasma reactor. Total removal of coke is obtained from 250 degrees C by applying only 8.6 W/gcatalyst, against 400 degrees C by conventional thermal treatment. The hydrogenation activity of the regenerated catalyst by NTP assisted by temperature is higher than that obtained by traditional thermal regeneration practiced industrially. Plasma treatment mitigates the oxide sintering but leads to the formation of cobalt oxide species preventing Co of fully playing its role as MoS2 slabs promoter. HDS catalyst regeneration using non-thermal plasma assisted by low temperature appears as a promising alternative to thermal combustion.",

keywords = "HDS catalyst, Thermal regeneration, Non-thermal plasma, Coke, SPECTROSCOPY SURFACE QUANTIFICATION, SULFIDED COMOP CATALYSTS, HYDROTREATING CATALYST, PROMOTED SITES, COMO/AL2O3, ACTIVATION, OXIDATION, TRANSFORMATION, DEACTIVATION, REACTOR",

author = "Hawraa Srour and Elodie Devers and Adrien Mekki-Berrada and Joumana Toufaily and Tayssir Hamieh and Catherine Batiot-Dupeyrat and Ludovic Pinard",

note = "Funding Information: The authors gratefully acknowledge IFPEN for the financial support. Hawraa Srour thanks the Lebanese University and IC2MP for the PhD grant. The authors acknowledge financial support from the European Union (ERDF) and “R{\'e}gion Nouvelle Aquitaine”. The authors would be grateful to O. Delpoux and L. Lemaitre for the XPS analysis, S. Lopez for technical support in catalyst preparation and regeneration. Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

month = dec,

day = "15",

doi = "10.1016/j.fuel.2021.121674",

language = "English",

volume = "306",

journal = "Fuel",

issn = "0016-2361",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Regeneration of an aged hydrodesulfurization catalyst

T2 - Conventional thermal vs non-thermal plasma technology

AU - Srour, Hawraa

AU - Devers, Elodie

AU - Mekki-Berrada, Adrien

AU - Toufaily, Joumana

AU - Hamieh, Tayssir

AU - Batiot-Dupeyrat, Catherine

AU - Pinard, Ludovic

N1 - Funding Information: The authors gratefully acknowledge IFPEN for the financial support. Hawraa Srour thanks the Lebanese University and IC2MP for the PhD grant. The authors acknowledge financial support from the European Union (ERDF) and “Région Nouvelle Aquitaine”. The authors would be grateful to O. Delpoux and L. Lemaitre for the XPS analysis, S. Lopez for technical support in catalyst preparation and regeneration. Publisher Copyright: © 2021 Elsevier Ltd

PY - 2021/12/15

Y1 - 2021/12/15

N2 - This study compares the regeneration efficiency of an aged industrial hydrodesulfurization catalyst (CoMoP/ Al2O3) by conventional and alternative routes: thermal oxidation versus non-thermal plasma technology (NTP). Spent, partially, and fully regenerated catalysts have been characterized by XRD, XPS, and toluene hydrogenation to measure hydrogenating activity. Complete regeneration of the HDS catalyst via NTP requires the heating of the dielectric barrier discharge plasma reactor. Total removal of coke is obtained from 250 degrees C by applying only 8.6 W/gcatalyst, against 400 degrees C by conventional thermal treatment. The hydrogenation activity of the regenerated catalyst by NTP assisted by temperature is higher than that obtained by traditional thermal regeneration practiced industrially. Plasma treatment mitigates the oxide sintering but leads to the formation of cobalt oxide species preventing Co of fully playing its role as MoS2 slabs promoter. HDS catalyst regeneration using non-thermal plasma assisted by low temperature appears as a promising alternative to thermal combustion.

AB - This study compares the regeneration efficiency of an aged industrial hydrodesulfurization catalyst (CoMoP/ Al2O3) by conventional and alternative routes: thermal oxidation versus non-thermal plasma technology (NTP). Spent, partially, and fully regenerated catalysts have been characterized by XRD, XPS, and toluene hydrogenation to measure hydrogenating activity. Complete regeneration of the HDS catalyst via NTP requires the heating of the dielectric barrier discharge plasma reactor. Total removal of coke is obtained from 250 degrees C by applying only 8.6 W/gcatalyst, against 400 degrees C by conventional thermal treatment. The hydrogenation activity of the regenerated catalyst by NTP assisted by temperature is higher than that obtained by traditional thermal regeneration practiced industrially. Plasma treatment mitigates the oxide sintering but leads to the formation of cobalt oxide species preventing Co of fully playing its role as MoS2 slabs promoter. HDS catalyst regeneration using non-thermal plasma assisted by low temperature appears as a promising alternative to thermal combustion.

KW - HDS catalyst

KW - Thermal regeneration

KW - Non-thermal plasma

KW - Coke

KW - SPECTROSCOPY SURFACE QUANTIFICATION

KW - SULFIDED COMOP CATALYSTS

KW - HYDROTREATING CATALYST

KW - PROMOTED SITES

KW - COMO/AL2O3

KW - ACTIVATION

KW - OXIDATION

KW - TRANSFORMATION

KW - DEACTIVATION

KW - REACTOR

U2 - 10.1016/j.fuel.2021.121674

DO - 10.1016/j.fuel.2021.121674

M3 - Article

SN - 0016-2361

VL - 306

JO - Fuel

JF - Fuel

M1 - 121674

ER -

Regeneration of an aged hydrodesulfurization catalyst: Conventional thermal vs non-thermal plasma technology

Abstract

Keywords

Access to Document

Fingerprint

Cite this