Diesel pre-reforming over highly dispersed nano-sized Ni catalysts supported on MgO-Al2O3 mixed oxides

Kee Young Koo; Min Guk Park; Un Ho Jung; Sung Hyun Kim; Wang Lai Yoon

doi:10.1016/j.ijhydene.2014.05.041

Diesel pre-reforming over highly dispersed nano-sized Ni catalysts supported on MgO-Al₂O₃ mixed oxides

Kee Young Koo
, Min Guk Park
, Un Ho Jung
, Sung Hyun Kim^*
, Wang Lai Yoon

^*Corresponding author for this work

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

19 Citations (Scopus)

Abstract

A highly dispersed 50 wt% Ni/MgO-Al₂O₃ catalyst was prepared by deposition-precipitation (DP) method for the diesel pre-reforming reaction. The pH of the precursor solution was controlled from pH 9.5 to 12.0 to examine the effects on NiO crystallite size and metal dispersion. The increase of pH of the precursor solution causes an increase of specific surface area and metal dispersion, and reduces NiO crystallite size. The pre-reforming reaction was carried out using n-tetradecane as surrogate compound of diesel. The coke formation of used catalysts was examined by TGA, TEM, SEM, and Raman analysis. The 50 wt% Ni/MgO-Al₂O₃ catalyst prepared at pH 11.5 showed a high catalytic activity and excellent coke resistance due to high metal dispersion (8.71%), small NiO crystallite size (3.5 nm), and strong interaction between Ni and support. Furthermore, this catalyst showed a good stability in the pre-reforming reaction at S/C ratio of 3.5 and 450 °C for 88 h.

Original language	English
Pages (from-to)	10941-10950
Number of pages	10
Journal	International Journal of Hydrogen Energy
Volume	39
Issue number	21
DOIs	https://doi.org/10.1016/j.ijhydene.2014.05.041
Publication status	Published - 2014 Jul 15

Bibliographical note

Funding Information:
This work was conducted under the framework of Research and Development Program of the Korea Institute of Energy Research (KIER) ( B4-2423 ). This work was supported by the New & Renewable Energy of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea ( 20113010030040 ).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Coke resistance
Deposition-precipitation
Diesel pre-reforming

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

Access to Document

10.1016/j.ijhydene.2014.05.041

Cite this

@article{d17a70b589e6498ca970ee27cda5bb89,

title = "Diesel pre-reforming over highly dispersed nano-sized Ni catalysts supported on MgO-Al2O3 mixed oxides",

abstract = "A highly dispersed 50 wt\% Ni/MgO-Al2O3 catalyst was prepared by deposition-precipitation (DP) method for the diesel pre-reforming reaction. The pH of the precursor solution was controlled from pH 9.5 to 12.0 to examine the effects on NiO crystallite size and metal dispersion. The increase of pH of the precursor solution causes an increase of specific surface area and metal dispersion, and reduces NiO crystallite size. The pre-reforming reaction was carried out using n-tetradecane as surrogate compound of diesel. The coke formation of used catalysts was examined by TGA, TEM, SEM, and Raman analysis. The 50 wt\% Ni/MgO-Al2O3 catalyst prepared at pH 11.5 showed a high catalytic activity and excellent coke resistance due to high metal dispersion (8.71\%), small NiO crystallite size (3.5 nm), and strong interaction between Ni and support. Furthermore, this catalyst showed a good stability in the pre-reforming reaction at S/C ratio of 3.5 and 450 °C for 88 h.",

keywords = "Coke resistance, Deposition-precipitation, Diesel pre-reforming",

author = "Koo, \{Kee Young\} and Park, \{Min Guk\} and Jung, \{Un Ho\} and Kim, \{Sung Hyun\} and Yoon, \{Wang Lai\}",

note = "Funding Information: This work was conducted under the framework of Research and Development Program of the Korea Institute of Energy Research (KIER) ( B4-2423 ). This work was supported by the New \& Renewable Energy of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry \& Energy, Republic of Korea ( 20113010030040 ).",

year = "2014",

month = jul,

day = "15",

doi = "10.1016/j.ijhydene.2014.05.041",

language = "English",

volume = "39",

pages = "10941--10950",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier Ltd",

number = "21",

}

TY - JOUR

T1 - Diesel pre-reforming over highly dispersed nano-sized Ni catalysts supported on MgO-Al2O3 mixed oxides

AU - Koo, Kee Young

AU - Park, Min Guk

AU - Jung, Un Ho

AU - Kim, Sung Hyun

AU - Yoon, Wang Lai

N1 - Funding Information: This work was conducted under the framework of Research and Development Program of the Korea Institute of Energy Research (KIER) ( B4-2423 ). This work was supported by the New & Renewable Energy of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea ( 20113010030040 ).

PY - 2014/7/15

Y1 - 2014/7/15

N2 - A highly dispersed 50 wt% Ni/MgO-Al2O3 catalyst was prepared by deposition-precipitation (DP) method for the diesel pre-reforming reaction. The pH of the precursor solution was controlled from pH 9.5 to 12.0 to examine the effects on NiO crystallite size and metal dispersion. The increase of pH of the precursor solution causes an increase of specific surface area and metal dispersion, and reduces NiO crystallite size. The pre-reforming reaction was carried out using n-tetradecane as surrogate compound of diesel. The coke formation of used catalysts was examined by TGA, TEM, SEM, and Raman analysis. The 50 wt% Ni/MgO-Al2O3 catalyst prepared at pH 11.5 showed a high catalytic activity and excellent coke resistance due to high metal dispersion (8.71%), small NiO crystallite size (3.5 nm), and strong interaction between Ni and support. Furthermore, this catalyst showed a good stability in the pre-reforming reaction at S/C ratio of 3.5 and 450 °C for 88 h.

AB - A highly dispersed 50 wt% Ni/MgO-Al2O3 catalyst was prepared by deposition-precipitation (DP) method for the diesel pre-reforming reaction. The pH of the precursor solution was controlled from pH 9.5 to 12.0 to examine the effects on NiO crystallite size and metal dispersion. The increase of pH of the precursor solution causes an increase of specific surface area and metal dispersion, and reduces NiO crystallite size. The pre-reforming reaction was carried out using n-tetradecane as surrogate compound of diesel. The coke formation of used catalysts was examined by TGA, TEM, SEM, and Raman analysis. The 50 wt% Ni/MgO-Al2O3 catalyst prepared at pH 11.5 showed a high catalytic activity and excellent coke resistance due to high metal dispersion (8.71%), small NiO crystallite size (3.5 nm), and strong interaction between Ni and support. Furthermore, this catalyst showed a good stability in the pre-reforming reaction at S/C ratio of 3.5 and 450 °C for 88 h.

KW - Coke resistance

KW - Deposition-precipitation

KW - Diesel pre-reforming

UR - https://www.scopus.com/pages/publications/84903313472

U2 - 10.1016/j.ijhydene.2014.05.041

DO - 10.1016/j.ijhydene.2014.05.041

M3 - Article

AN - SCOPUS:84903313472

SN - 0360-3199

VL - 39

SP - 10941

EP - 10950

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 21

ER -