Ring opening of decalin over zeolite-supported iridium catalysts

David Kubička; Matias Kangas; Narendra Kumar; Marja Tiitta; Marina Lindblad; Dmitry Yu Murzin

doi:10.1007/s11244-010-9604-7

Ring opening of decalin over zeolite-supported iridium catalysts

David Kubička^*, Matias Kangas, Narendra Kumar, Marja Tiitta, Marina Lindblad, Dmitry Yu Murzin

^*Corresponding author for this work

Laboratory of Industrial Chemistry and Reaction Engineering

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

36 Citations (Scopus)

Abstract

Selective ring opening of decalin was investigated over various metal-modified zeolites in order to shed light on the key parameters affecting the selectivity to ringopening products at low extent of cracking reactions. Ir-modified zeolites H-Y and H-Beta having different concentration and strength of acid sites were studied in a batch reactor at 250-310 °C and 20-60 bar H₂ and their performance was compared with that of Pt-modified zeolites. The concentration of Brønsted acid sites, reaction temperature and hydrogen pressure were shown to be the crucial reaction parameters. To obtain high selectivity to formation of ring-opening products from decalin, mildly acidic Ir-modified Beta was the best choice when the reaction was carried out at temperature of 270 °C or lower and at H₂ pressure of 60 bar. Under these conditions the selectivity and yield of ring-opening products exceeded 65 and 60%, respectively.

Original language	English
Pages (from-to)	1438-1445
Number of pages	8
Journal	Topics in Catalysis
Volume	53
Issue number	19-20
DOIs	https://doi.org/10.1007/s11244-010-9604-7
Publication status	Published - Oct 2010
MoE publication type	A1 Journal article-refereed

Keywords

Decalin
Iridium
Platinum
Ring opening
Zeolites

Access to Document

10.1007/s11244-010-9604-7Licence: Publisher rights policy

Cite this

@article{278616723bd6408bbf5f4b64b9dab14a,

title = "Ring opening of decalin over zeolite-supported iridium catalysts",

abstract = "Selective ring opening of decalin was investigated over various metal-modified zeolites in order to shed light on the key parameters affecting the selectivity to ringopening products at low extent of cracking reactions. Ir-modified zeolites H-Y and H-Beta having different concentration and strength of acid sites were studied in a batch reactor at 250-310 °C and 20-60 bar H2 and their performance was compared with that of Pt-modified zeolites. The concentration of Br{\o}nsted acid sites, reaction temperature and hydrogen pressure were shown to be the crucial reaction parameters. To obtain high selectivity to formation of ring-opening products from decalin, mildly acidic Ir-modified Beta was the best choice when the reaction was carried out at temperature of 270 °C or lower and at H2 pressure of 60 bar. Under these conditions the selectivity and yield of ring-opening products exceeded 65 and 60%, respectively.",

keywords = "Decalin, Iridium, Platinum, Ring opening, Zeolites",

author = "David Kubi{\v c}ka and Matias Kangas and Narendra Kumar and Marja Tiitta and Marina Lindblad and Murzin, {Dmitry Yu}",

year = "2010",

month = oct,

doi = "10.1007/s11244-010-9604-7",

language = "English",

volume = "53",

pages = "1438--1445",

journal = "Topics in Catalysis",

issn = "1022-5528",

publisher = "Springer",

number = "19-20",

}

TY - JOUR

T1 - Ring opening of decalin over zeolite-supported iridium catalysts

AU - Kubička, David

AU - Kangas, Matias

AU - Kumar, Narendra

AU - Tiitta, Marja

AU - Lindblad, Marina

AU - Murzin, Dmitry Yu

PY - 2010/10

Y1 - 2010/10

N2 - Selective ring opening of decalin was investigated over various metal-modified zeolites in order to shed light on the key parameters affecting the selectivity to ringopening products at low extent of cracking reactions. Ir-modified zeolites H-Y and H-Beta having different concentration and strength of acid sites were studied in a batch reactor at 250-310 °C and 20-60 bar H2 and their performance was compared with that of Pt-modified zeolites. The concentration of Brønsted acid sites, reaction temperature and hydrogen pressure were shown to be the crucial reaction parameters. To obtain high selectivity to formation of ring-opening products from decalin, mildly acidic Ir-modified Beta was the best choice when the reaction was carried out at temperature of 270 °C or lower and at H2 pressure of 60 bar. Under these conditions the selectivity and yield of ring-opening products exceeded 65 and 60%, respectively.

AB - Selective ring opening of decalin was investigated over various metal-modified zeolites in order to shed light on the key parameters affecting the selectivity to ringopening products at low extent of cracking reactions. Ir-modified zeolites H-Y and H-Beta having different concentration and strength of acid sites were studied in a batch reactor at 250-310 °C and 20-60 bar H2 and their performance was compared with that of Pt-modified zeolites. The concentration of Brønsted acid sites, reaction temperature and hydrogen pressure were shown to be the crucial reaction parameters. To obtain high selectivity to formation of ring-opening products from decalin, mildly acidic Ir-modified Beta was the best choice when the reaction was carried out at temperature of 270 °C or lower and at H2 pressure of 60 bar. Under these conditions the selectivity and yield of ring-opening products exceeded 65 and 60%, respectively.

KW - Decalin

KW - Iridium

KW - Platinum

KW - Ring opening

KW - Zeolites

UR - http://www.scopus.com/inward/record.url?scp=78651097802&partnerID=8YFLogxK

U2 - 10.1007/s11244-010-9604-7

DO - 10.1007/s11244-010-9604-7

M3 - Article

AN - SCOPUS:78651097802

SN - 1022-5528

VL - 53

SP - 1438

EP - 1445

JO - Topics in Catalysis

JF - Topics in Catalysis

IS - 19-20

ER -

Ring opening of decalin over zeolite-supported iridium catalysts

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this