Abstract
Activated carbon supported nickel-based catalysts doped with Fe were prepared by the incipient wetness impregnation method. In order to improve the acid-resistant stability of the catalyst, the nickel catalysts supported on hydrophobic activated carbon were also prepared by the same method. The as-prepared catalysts were applied for the liquid phase selective hydrogenation of phthalic anhydride to phthalide. The experimental results showed that Fe doped Ni/activated carbon catalyst containing 5wt.% Fe and 15wt.% Ni had the best catalytic performance among the nickel catalysts tested, with 100% of phthalic anhydride conversion and 95.2% of selectivity to phthalide at 180°C and 4.0MPa H2. When the activated carbon support was pretreated with NaBH4, the acid-resistant ability of the as-prepared Ni-Fe catalyst was remarkably enhanced, and the catalyst could be reused more than 8 times with slight decrease in activity, which was much better than the one without hydrophobization. The remarkable catalytic performance might be attributed to (1) the addition of Fe to form an alloy with Ni, dispersing the electron clouds around Ni atoms and stabilizing the Ni catalyst; (2) the application of hydrophobilized activated carbon as a support, preventing produced water from contacting the metal surface, which could reduce the corrosion of Ni as the activity of the H+ concentration decreases.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 271-280 |
| Number of pages | 10 |
| Journal | Chemical Engineering Journal |
| Volume | 275 |
| DOIs | |
| State | Published - Sep 1 2015 |
| Externally published | Yes |
Fingerprint
Keywords
- Fe promoter
- Hydrogenation
- Hydrophobilized activated carbon
- Nickel-based catalyst
- Phthalic anhydride
- Phthalide
ASJC Scopus subject areas
- Chemical Engineering(all)
- Chemistry(all)
- Industrial and Manufacturing Engineering
- Environmental Chemistry
Cite this
Hydrophobic activated carbon supported Ni-based acid-resistant catalyst for selective hydrogenation of phthalic anhydride to phthalide. / Liu, Yingxin; Gu, Yunjiang; Hou, Yaxin; Yang, Yao; Deng, Shuguang; Wei, Zuojun.
In: Chemical Engineering Journal, Vol. 275, 01.09.2015, p. 271-280.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Hydrophobic activated carbon supported Ni-based acid-resistant catalyst for selective hydrogenation of phthalic anhydride to phthalide
AU - Liu, Yingxin
AU - Gu, Yunjiang
AU - Hou, Yaxin
AU - Yang, Yao
AU - Deng, Shuguang
AU - Wei, Zuojun
PY - 2015/9/1
Y1 - 2015/9/1
N2 - Activated carbon supported nickel-based catalysts doped with Fe were prepared by the incipient wetness impregnation method. In order to improve the acid-resistant stability of the catalyst, the nickel catalysts supported on hydrophobic activated carbon were also prepared by the same method. The as-prepared catalysts were applied for the liquid phase selective hydrogenation of phthalic anhydride to phthalide. The experimental results showed that Fe doped Ni/activated carbon catalyst containing 5wt.% Fe and 15wt.% Ni had the best catalytic performance among the nickel catalysts tested, with 100% of phthalic anhydride conversion and 95.2% of selectivity to phthalide at 180°C and 4.0MPa H2. When the activated carbon support was pretreated with NaBH4, the acid-resistant ability of the as-prepared Ni-Fe catalyst was remarkably enhanced, and the catalyst could be reused more than 8 times with slight decrease in activity, which was much better than the one without hydrophobization. The remarkable catalytic performance might be attributed to (1) the addition of Fe to form an alloy with Ni, dispersing the electron clouds around Ni atoms and stabilizing the Ni catalyst; (2) the application of hydrophobilized activated carbon as a support, preventing produced water from contacting the metal surface, which could reduce the corrosion of Ni as the activity of the H+ concentration decreases.
AB - Activated carbon supported nickel-based catalysts doped with Fe were prepared by the incipient wetness impregnation method. In order to improve the acid-resistant stability of the catalyst, the nickel catalysts supported on hydrophobic activated carbon were also prepared by the same method. The as-prepared catalysts were applied for the liquid phase selective hydrogenation of phthalic anhydride to phthalide. The experimental results showed that Fe doped Ni/activated carbon catalyst containing 5wt.% Fe and 15wt.% Ni had the best catalytic performance among the nickel catalysts tested, with 100% of phthalic anhydride conversion and 95.2% of selectivity to phthalide at 180°C and 4.0MPa H2. When the activated carbon support was pretreated with NaBH4, the acid-resistant ability of the as-prepared Ni-Fe catalyst was remarkably enhanced, and the catalyst could be reused more than 8 times with slight decrease in activity, which was much better than the one without hydrophobization. The remarkable catalytic performance might be attributed to (1) the addition of Fe to form an alloy with Ni, dispersing the electron clouds around Ni atoms and stabilizing the Ni catalyst; (2) the application of hydrophobilized activated carbon as a support, preventing produced water from contacting the metal surface, which could reduce the corrosion of Ni as the activity of the H+ concentration decreases.
KW - Fe promoter
KW - Hydrogenation
KW - Hydrophobilized activated carbon
KW - Nickel-based catalyst
KW - Phthalic anhydride
KW - Phthalide
UR - http://www.scopus.com/inward/record.url?scp=84928321783&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84928321783&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2015.04.051
DO - 10.1016/j.cej.2015.04.051
M3 - Article
VL - 275
SP - 271
EP - 280
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
SN - 1385-8947
ER -