Selective hydrogenolysis of glycerol and crude glycerol (A by-product orwaste stream from the biodiesel industry) to 1,2-propanediol over B2O3promoted Cu/Al2O3catalysts

Malaya R. Nanda; Zhongshun Yuan; Hengfu Shui; Chunbao Charles Xu

doi:10.3390/catal7070196

Selective hydrogenolysis of glycerol and crude glycerol (A by-product orwaste stream from the biodiesel industry) to 1,2-propanediol over B₂O₃promoted Cu/Al₂O₃catalysts

Malaya R. Nanda
, Zhongshun Yuan
, Hengfu Shui
, Chunbao Charles Xu^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

25 Citations (Scopus)

Abstract

The performance of boron oxide (B₂O₃)-promoted Cu/Al₂O₃ catalyst in the selective hydrogenolysis of glycerol and crude glycerol (a by-product or waste stream from the biodiesel industry) to produce 1,2-propanediol (1,2-PDO) was investigated. The catalysts were characterized using N₂-adsorption-desorption isotherm, Inductively coupled plasma atomic emission spectroscopy (ICP-AES), X-ray diffraction (XRD), ammonia temperature programmed desorption (NH₃-TPD), thermogravimetric analysis (TGA), temperature programmed reduction (TPR), and transmission electron microscopy (TEM). Incorporation of B₂O₃ to Cu/Al₂O₃ was found to enhance the catalytic activity. At the optimum condition (250 °C, 6 MPa H₂pressure, 0.1 h^–1 WHSV (weight hourly space velocity), and 5Cu-B/Al₂O₃ catalyst), 10 wt% aqueous solution of glycerol was converted into 1,2-PDO at 98 ± 2% glycerol conversion and 98 ± 2% selectivity. The effects of temperature, pressure, boron addition amount, and liquid hourly space velocity were studied. Different grades of glycerol (pharmaceutical, technical, or crude glycerol) were used in the process to investigate the stability and resistance to deactivation of the selected 5Cu-B/Al₂O₃ catalyst. © 2017 by the authors. Licensee MDPI, Basel, Switzerland.

Original language	English
Article number	196
Journal	Catalysts
Volume	7
Issue number	7
DOIs	https://doi.org/10.3390/catal7070196
Publication status	Published - 1 Jul 2017
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

The authors wish to acknowledge the financial support provided by Natural Science and Engineering Research Council of Canada (NSERC) through the Discovery Grant and Industrial Research Chair for Xu, as well as from Mitacs through the Accelerate program.

UN SDGs

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

SDG 7 Affordable and Clean Energy
SDG 9 Industry, Innovation, and Infrastructure

Research Keywords

1,2-propanediol
Boron oxide
Crude glycerol
Cu/Al2O3
Glycerol

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10.3390/catal7070196

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Cite this

@article{8f1794968da648f8a962c0c0281e4136,

title = "Selective hydrogenolysis of glycerol and crude glycerol (A by-product orwaste stream from the biodiesel industry) to 1,2-propanediol over B2O3promoted Cu/Al2O3catalysts",

abstract = "The performance of boron oxide (B2O3)-promoted Cu/Al2O3 catalyst in the selective hydrogenolysis of glycerol and crude glycerol (a by-product or waste stream from the biodiesel industry) to produce 1,2-propanediol (1,2-PDO) was investigated. The catalysts were characterized using N2-adsorption-desorption isotherm, Inductively coupled plasma atomic emission spectroscopy (ICP-AES), X-ray diffraction (XRD), ammonia temperature programmed desorption (NH3-TPD), thermogravimetric analysis (TGA), temperature programmed reduction (TPR), and transmission electron microscopy (TEM). Incorporation of B2O3 to Cu/Al2O3 was found to enhance the catalytic activity. At the optimum condition (250 °C, 6 MPa H2pressure, 0.1 h–1 WHSV (weight hourly space velocity), and 5Cu-B/Al2O3 catalyst), 10 wt\% aqueous solution of glycerol was converted into 1,2-PDO at 98 ± 2\% glycerol conversion and 98 ± 2\% selectivity. The effects of temperature, pressure, boron addition amount, and liquid hourly space velocity were studied. Different grades of glycerol (pharmaceutical, technical, or crude glycerol) were used in the process to investigate the stability and resistance to deactivation of the selected 5Cu-B/Al2O3 catalyst. {\textcopyright} 2017 by the authors. Licensee MDPI, Basel, Switzerland.",

keywords = "1,2-propanediol, Boron oxide, Crude glycerol, Cu/Al2O3, Glycerol",

author = "Nanda, \{Malaya R.\} and Zhongshun Yuan and Hengfu Shui and \{Charles Xu\}, Chunbao",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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Selective hydrogenolysis of glycerol and crude glycerol (A by-product orwaste stream from the biodiesel industry) to 1,2-propanediol over B₂O₃promoted Cu/Al₂O₃catalysts. / Nanda, Malaya R.; Yuan, Zhongshun; Shui, Hengfu et al.
In: Catalysts, Vol. 7, No. 7, 196, 01.07.2017.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Selective hydrogenolysis of glycerol and crude glycerol (A by-product orwaste stream from the biodiesel industry) to 1,2-propanediol over B2O3promoted Cu/Al2O3catalysts

AU - Nanda, Malaya R.

AU - Yuan, Zhongshun

AU - Shui, Hengfu

AU - Charles Xu, Chunbao

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2017/7/1

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N2 - The performance of boron oxide (B2O3)-promoted Cu/Al2O3 catalyst in the selective hydrogenolysis of glycerol and crude glycerol (a by-product or waste stream from the biodiesel industry) to produce 1,2-propanediol (1,2-PDO) was investigated. The catalysts were characterized using N2-adsorption-desorption isotherm, Inductively coupled plasma atomic emission spectroscopy (ICP-AES), X-ray diffraction (XRD), ammonia temperature programmed desorption (NH3-TPD), thermogravimetric analysis (TGA), temperature programmed reduction (TPR), and transmission electron microscopy (TEM). Incorporation of B2O3 to Cu/Al2O3 was found to enhance the catalytic activity. At the optimum condition (250 °C, 6 MPa H2pressure, 0.1 h–1 WHSV (weight hourly space velocity), and 5Cu-B/Al2O3 catalyst), 10 wt% aqueous solution of glycerol was converted into 1,2-PDO at 98 ± 2% glycerol conversion and 98 ± 2% selectivity. The effects of temperature, pressure, boron addition amount, and liquid hourly space velocity were studied. Different grades of glycerol (pharmaceutical, technical, or crude glycerol) were used in the process to investigate the stability and resistance to deactivation of the selected 5Cu-B/Al2O3 catalyst. © 2017 by the authors. Licensee MDPI, Basel, Switzerland.

AB - The performance of boron oxide (B2O3)-promoted Cu/Al2O3 catalyst in the selective hydrogenolysis of glycerol and crude glycerol (a by-product or waste stream from the biodiesel industry) to produce 1,2-propanediol (1,2-PDO) was investigated. The catalysts were characterized using N2-adsorption-desorption isotherm, Inductively coupled plasma atomic emission spectroscopy (ICP-AES), X-ray diffraction (XRD), ammonia temperature programmed desorption (NH3-TPD), thermogravimetric analysis (TGA), temperature programmed reduction (TPR), and transmission electron microscopy (TEM). Incorporation of B2O3 to Cu/Al2O3 was found to enhance the catalytic activity. At the optimum condition (250 °C, 6 MPa H2pressure, 0.1 h–1 WHSV (weight hourly space velocity), and 5Cu-B/Al2O3 catalyst), 10 wt% aqueous solution of glycerol was converted into 1,2-PDO at 98 ± 2% glycerol conversion and 98 ± 2% selectivity. The effects of temperature, pressure, boron addition amount, and liquid hourly space velocity were studied. Different grades of glycerol (pharmaceutical, technical, or crude glycerol) were used in the process to investigate the stability and resistance to deactivation of the selected 5Cu-B/Al2O3 catalyst. © 2017 by the authors. Licensee MDPI, Basel, Switzerland.

KW - 1,2-propanediol

KW - Boron oxide

KW - Crude glycerol

KW - Cu/Al2O3

KW - Glycerol

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