Carbon/H-ZSM-5 composites as supports for bi-functional Fischer-Tropsch synthesis catalysts

M. J. Valero-Romero; S. Sartipi; X. Sun; J. Rodríguez-Mirasol; T. Cordero; F. Kapteijn; J. Gascon

doi:10.1039/c5cy01942g

Carbon/H-ZSM-5 composites as supports for bi-functional Fischer-Tropsch synthesis catalysts

M. J. Valero-Romero, S. Sartipi, X. Sun, J. Rodríguez-Mirasol, T. Cordero, F. Kapteijn, J. Gascon^*

^*Corresponding author for this work

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

32 Scopus citations

Abstract

Mesoporous H-ZSM-5-carbon composites, prepared via tetrapropylammonium hydroxide (TPAOH) post treatment of H-ZSM-5 followed by deposition of pyrolytic carbon, have been used as the support for the preparation of Co-based Fischer-Tropsch catalysts. The resulting catalysts display an improved performance during Fischer-Tropsch synthesis (FTS), with higher activity, higher selectivity towards C5-C9 (gasoline range) hydrocarbons and lower selectivity towards C1 (and C2) than Co/mesoH-ZSM5 (without pyrolytic carbon). This is due to the weaker metal-support interaction caused by the deposited carbon (as revealed by XPS) leading to a higher reducibility of the Co species. Further, the partial deactivation of the Brønsted acid sites by pyrolytic carbon deposition, as was observed by NH₃-TPD, allows the modification of the zeolite acidity. Both the olefin to paraffin (O/P) and the isoparaffin to normal paraffin (I/N) ratios decrease with the increase in the carbon content, opening the door to further tune the catalytic performance in multifunctional FTS operations.

Original language	English (US)
Pages (from-to)	2633-2646
Number of pages	14
Journal	Catalysis Science and Technology
Volume	6
Issue number	8
DOIs	https://doi.org/10.1039/c5cy01942g
State	Published - Apr 21 2016
Externally published	Yes

Bibliographical note

Funding Information:
The authors gratefully acknowledge the support of the Spanish Ministry of Economy and Competitiveness (MINECO) and FEDER (Project CTQ2012-36408) and the Smart Mix Program of the Netherlands Ministry of Economic Affairs and the Netherlands Ministry of Education, Culture and Science. M. J. V. R. gratefully thanks the Spanish Ministry of Economy and Competitiveness (MINECO) for a research stay fellowship (EEBB-I-14-08633).

Publisher Copyright:
© The Royal Society of Chemistry 2016.

ASJC Scopus subject areas

Catalysis

Access to Document

10.1039/c5cy01942g

Cite this

@article{119269cd2cec4173986b8b72ccf2376b,

title = "Carbon/H-ZSM-5 composites as supports for bi-functional Fischer-Tropsch synthesis catalysts",

abstract = "Mesoporous H-ZSM-5-carbon composites, prepared via tetrapropylammonium hydroxide (TPAOH) post treatment of H-ZSM-5 followed by deposition of pyrolytic carbon, have been used as the support for the preparation of Co-based Fischer-Tropsch catalysts. The resulting catalysts display an improved performance during Fischer-Tropsch synthesis (FTS), with higher activity, higher selectivity towards C5-C9 (gasoline range) hydrocarbons and lower selectivity towards C1 (and C2) than Co/mesoH-ZSM5 (without pyrolytic carbon). This is due to the weaker metal-support interaction caused by the deposited carbon (as revealed by XPS) leading to a higher reducibility of the Co species. Further, the partial deactivation of the Br{\o}nsted acid sites by pyrolytic carbon deposition, as was observed by NH3-TPD, allows the modification of the zeolite acidity. Both the olefin to paraffin (O/P) and the isoparaffin to normal paraffin (I/N) ratios decrease with the increase in the carbon content, opening the door to further tune the catalytic performance in multifunctional FTS operations.",

author = "Valero-Romero, {M. J.} and S. Sartipi and X. Sun and J. Rodr{\'i}guez-Mirasol and T. Cordero and F. Kapteijn and J. Gascon",

note = "Funding Information: The authors gratefully acknowledge the support of the Spanish Ministry of Economy and Competitiveness (MINECO) and FEDER (Project CTQ2012-36408) and the Smart Mix Program of the Netherlands Ministry of Economic Affairs and the Netherlands Ministry of Education, Culture and Science. M. J. V. R. gratefully thanks the Spanish Ministry of Economy and Competitiveness (MINECO) for a research stay fellowship (EEBB-I-14-08633). Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2016.",

year = "2016",

month = apr,

day = "21",

doi = "10.1039/c5cy01942g",

language = "English (US)",

volume = "6",

pages = "2633--2646",

journal = "Catalysis Science and Technology",

issn = "2044-4753",

publisher = "Royal Society of Chemistry",

number = "8",

}

TY - JOUR

T1 - Carbon/H-ZSM-5 composites as supports for bi-functional Fischer-Tropsch synthesis catalysts

AU - Valero-Romero, M. J.

AU - Sartipi, S.

AU - Sun, X.

AU - Rodríguez-Mirasol, J.

AU - Cordero, T.

AU - Kapteijn, F.

AU - Gascon, J.

N1 - Funding Information: The authors gratefully acknowledge the support of the Spanish Ministry of Economy and Competitiveness (MINECO) and FEDER (Project CTQ2012-36408) and the Smart Mix Program of the Netherlands Ministry of Economic Affairs and the Netherlands Ministry of Education, Culture and Science. M. J. V. R. gratefully thanks the Spanish Ministry of Economy and Competitiveness (MINECO) for a research stay fellowship (EEBB-I-14-08633). Publisher Copyright: © The Royal Society of Chemistry 2016.

PY - 2016/4/21

Y1 - 2016/4/21

N2 - Mesoporous H-ZSM-5-carbon composites, prepared via tetrapropylammonium hydroxide (TPAOH) post treatment of H-ZSM-5 followed by deposition of pyrolytic carbon, have been used as the support for the preparation of Co-based Fischer-Tropsch catalysts. The resulting catalysts display an improved performance during Fischer-Tropsch synthesis (FTS), with higher activity, higher selectivity towards C5-C9 (gasoline range) hydrocarbons and lower selectivity towards C1 (and C2) than Co/mesoH-ZSM5 (without pyrolytic carbon). This is due to the weaker metal-support interaction caused by the deposited carbon (as revealed by XPS) leading to a higher reducibility of the Co species. Further, the partial deactivation of the Brønsted acid sites by pyrolytic carbon deposition, as was observed by NH3-TPD, allows the modification of the zeolite acidity. Both the olefin to paraffin (O/P) and the isoparaffin to normal paraffin (I/N) ratios decrease with the increase in the carbon content, opening the door to further tune the catalytic performance in multifunctional FTS operations.

AB - Mesoporous H-ZSM-5-carbon composites, prepared via tetrapropylammonium hydroxide (TPAOH) post treatment of H-ZSM-5 followed by deposition of pyrolytic carbon, have been used as the support for the preparation of Co-based Fischer-Tropsch catalysts. The resulting catalysts display an improved performance during Fischer-Tropsch synthesis (FTS), with higher activity, higher selectivity towards C5-C9 (gasoline range) hydrocarbons and lower selectivity towards C1 (and C2) than Co/mesoH-ZSM5 (without pyrolytic carbon). This is due to the weaker metal-support interaction caused by the deposited carbon (as revealed by XPS) leading to a higher reducibility of the Co species. Further, the partial deactivation of the Brønsted acid sites by pyrolytic carbon deposition, as was observed by NH3-TPD, allows the modification of the zeolite acidity. Both the olefin to paraffin (O/P) and the isoparaffin to normal paraffin (I/N) ratios decrease with the increase in the carbon content, opening the door to further tune the catalytic performance in multifunctional FTS operations.

UR - http://www.scopus.com/inward/record.url?scp=84966318549&partnerID=8YFLogxK

U2 - 10.1039/c5cy01942g

DO - 10.1039/c5cy01942g

M3 - Article

AN - SCOPUS:84966318549

SN - 2044-4753

VL - 6

SP - 2633

EP - 2646

JO - Catalysis Science and Technology

JF - Catalysis Science and Technology

IS - 8

ER -

Carbon/H-ZSM-5 composites as supports for bi-functional Fischer-Tropsch synthesis catalysts

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this