, volume 525 , pages 197-203

Pd-Ag/Al2O3 catalyst: Stages of deactivation in tail-end acetylene selective hydrogenation

Maryam Takht Ravanchi ¹

Saeed Sahebdelfar ¹

Hide authors affiliations Show authors affiliations: 1 affiliation

National Petrochemical Company, Petrochemical Research and Technology Company, Catalyst Research Group, P.O. Box 14358-84711, Tehran, Iran |

Publication type: Journal Article

Publication date: 2016-09-01

Elsevier

Applied Catalysis A: General

scimago Q2

wos Q2

SJR: 1.000

CiteScore: 8.6

Impact factor: 4.8

ISSN: 0926860X, 18733875

DOI: 10.1016/j.apcata.2016.07.014

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Catalysis

Process Chemistry and Technology

Abstract

The deactivation of a Pd-Ag/α-Al 2 O 3 catalyst (2.5 mm in diameter, containing 0.03 wt.% Pd and 0.18 wt.% Ag) with egg-shell distribution was studied for acetylene selective hydrogenation. The reaction was performed in a fixed bed reactor using C 2 H 2 /C 2 H 4 /H 2 feed mixture (1:67.5:1.5 molar ratio). The long-term deactivation behaviour of the catalyst was studied by differential method of analysis using appropriate power law kinetics for the main reaction and catalyst decay. Based on the analysis of model results, it was proposed that the catalyst deactivation proceeded in two stages. The initial stage (Stage I) was relatively short (

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Shlyapin Dmitry

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Boreskov Institute of Catalysis of the Siberian Branch of the Russian Academy of Sciences

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Gerasimov Evgeny

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Boreskov Institute of Catalysis of the Siberian Branch of the Russian Academy of Sciences

Novosibirsk State University

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Takht Ravanchi M., Sahebdelfar S. Pd-Ag/Al2O3 catalyst: Stages of deactivation in tail-end acetylene selective hydrogenation // Applied Catalysis A: General. 2016. Vol. 525. pp. 197-203.

GOST all authors (up to 50) Copy

Takht Ravanchi M., Sahebdelfar S. Pd-Ag/Al2O3 catalyst: Stages of deactivation in tail-end acetylene selective hydrogenation // Applied Catalysis A: General. 2016. Vol. 525. pp. 197-203.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1016/j.apcata.2016.07.014

UR - https://doi.org/10.1016/j.apcata.2016.07.014

TI - Pd-Ag/Al2O3 catalyst: Stages of deactivation in tail-end acetylene selective hydrogenation

T2 - Applied Catalysis A: General

AU - Takht Ravanchi, Maryam

AU - Sahebdelfar, Saeed

PY - 2016

DA - 2016/09/01

PB - Elsevier

SP - 197-203

VL - 525

SN - 0926-860X

SN - 1873-3875

ER -

BibTex

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BibTex (up to 50 authors) Copy

@article{2016_Takht Ravanchi,

author = {Maryam Takht Ravanchi and Saeed Sahebdelfar},

title = {Pd-Ag/Al2O3 catalyst: Stages of deactivation in tail-end acetylene selective hydrogenation},

journal = {Applied Catalysis A: General},

year = {2016},

volume = {525},

publisher = {Elsevier},

month = {sep},

url = {https://doi.org/10.1016/j.apcata.2016.07.014},

pages = {197--203},

doi = {10.1016/j.apcata.2016.07.014}

}

Publisher

Elsevier

Journal

Applied Catalysis A: General

scimago Q2

wos Q2

SJR

1.000

CiteScore

8.6

Impact factor

4.8

ISSN

0926860X (Print)

18733875 (Electronic)