Role of ZrO2 on Cu/ZnO/Al2O3/ZrO2 in methanol synthesis

Heon Jung; Dae Ryook Yang; Kwang Deog Jung

doi:10.1002/bkcs.10587

Role of ZrO₂ on Cu/ZnO/Al₂O₃/ZrO₂ in methanol synthesis

Heon Jung, Dae Ryook Yang, Kwang Deog Jung

Department of Chemical and Biological Engineering

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

3 Citations (Scopus)

Abstract

Cu/ZnO/Al₂O₃/ZrO₂ (CZAZr) catalysts were prepared by a coprecipitation method. CO₂ was introduced into aging solution to get CZAZr precusors with malachite phase. The x value inCZAZr(x) is the metallic ratio of the Zr component at a fixed metallic ratio of Cu:Zn:Al of 6:3:1. TOF_MeOH of CZAZr(0) was 0.56 μmol/m²Cu/s at 250 °C, 50 atm and a gas hourly space velocity (GHSV) of 12 000 mL/g_cat/h. TOF_MeOHs of CZAZr(1), CZAZr (2), CZAZr(3), and CZAZr(4) were 0.64, 0.90, 0.99, and 1.08 μmol/m²Cu/s at the same reaction condition, respectively. TOF_MeOHs of CZAZr catalysts increased with increasing ZrO₂ content, indicating that high TOF_MeOH of CZAZr catalysts came from ZrO₂ as compared with CZAZr(0) catalysts. These kinetic data on CZAZr catalysts in the practical reaction condition proved the suggestion from previous infrared (IR) study on Cu/Zr catalysts. ZrO₂ afforded the adsorption sites for CO and CO₂ insertion into Zr-OH and Cu supplied active hydrogen to ZrO₂ for hydrogenating formate and hydroxycarbonate to methanol on ZrO₂ in addition to methanol synthesis on Cu/ZnO/Al₂O₃.

Original language	English
Pages (from-to)	2875-2880
Number of pages	6
Journal	Bulletin of the Korean Chemical Society
Volume	36
Issue number	12
DOIs	https://doi.org/10.1002/bkcs.10587
Publication status	Published - 2015 Dec 1

Bibliographical note

Publisher Copyright:
© 2015 Korean Chemical Society, Seoul & Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim .

Keywords

Cu/ZnO/AlO/ZrO catalyst
Hydrogen spillover
Methanol synthesis
Structure sensitivity

ASJC Scopus subject areas

Chemistry(all)

Access to Document

10.1002/bkcs.10587

Cite this

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title = "Role of ZrO2 on Cu/ZnO/Al2O3/ZrO2 in methanol synthesis",

abstract = "Cu/ZnO/Al2O3/ZrO2 (CZAZr) catalysts were prepared by a coprecipitation method. CO2 was introduced into aging solution to get CZAZr precusors with malachite phase. The x value inCZAZr(x) is the metallic ratio of the Zr component at a fixed metallic ratio of Cu:Zn:Al of 6:3:1. TOFMeOH of CZAZr(0) was 0.56 μmol/m2Cu/s at 250 °C, 50 atm and a gas hourly space velocity (GHSV) of 12 000 mL/gcat/h. TOFMeOHs of CZAZr(1), CZAZr (2), CZAZr(3), and CZAZr(4) were 0.64, 0.90, 0.99, and 1.08 μmol/m2Cu/s at the same reaction condition, respectively. TOFMeOHs of CZAZr catalysts increased with increasing ZrO2 content, indicating that high TOFMeOH of CZAZr catalysts came from ZrO2 as compared with CZAZr(0) catalysts. These kinetic data on CZAZr catalysts in the practical reaction condition proved the suggestion from previous infrared (IR) study on Cu/Zr catalysts. ZrO2 afforded the adsorption sites for CO and CO2 insertion into Zr-OH and Cu supplied active hydrogen to ZrO2 for hydrogenating formate and hydroxycarbonate to methanol on ZrO2 in addition to methanol synthesis on Cu/ZnO/Al2O3.",

keywords = "Cu/ZnO/AlO/ZrO catalyst, Hydrogen spillover, Methanol synthesis, Structure sensitivity",

author = "Heon Jung and Yang, {Dae Ryook} and Jung, {Kwang Deog}",

note = "Publisher Copyright: {\textcopyright} 2015 Korean Chemical Society, Seoul & Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim .",

year = "2015",

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doi = "10.1002/bkcs.10587",

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T1 - Role of ZrO2 on Cu/ZnO/Al2O3/ZrO2 in methanol synthesis

AU - Jung, Heon

AU - Yang, Dae Ryook

AU - Jung, Kwang Deog

PY - 2015/12/1

Y1 - 2015/12/1

N2 - Cu/ZnO/Al2O3/ZrO2 (CZAZr) catalysts were prepared by a coprecipitation method. CO2 was introduced into aging solution to get CZAZr precusors with malachite phase. The x value inCZAZr(x) is the metallic ratio of the Zr component at a fixed metallic ratio of Cu:Zn:Al of 6:3:1. TOFMeOH of CZAZr(0) was 0.56 μmol/m2Cu/s at 250 °C, 50 atm and a gas hourly space velocity (GHSV) of 12 000 mL/gcat/h. TOFMeOHs of CZAZr(1), CZAZr (2), CZAZr(3), and CZAZr(4) were 0.64, 0.90, 0.99, and 1.08 μmol/m2Cu/s at the same reaction condition, respectively. TOFMeOHs of CZAZr catalysts increased with increasing ZrO2 content, indicating that high TOFMeOH of CZAZr catalysts came from ZrO2 as compared with CZAZr(0) catalysts. These kinetic data on CZAZr catalysts in the practical reaction condition proved the suggestion from previous infrared (IR) study on Cu/Zr catalysts. ZrO2 afforded the adsorption sites for CO and CO2 insertion into Zr-OH and Cu supplied active hydrogen to ZrO2 for hydrogenating formate and hydroxycarbonate to methanol on ZrO2 in addition to methanol synthesis on Cu/ZnO/Al2O3.

AB - Cu/ZnO/Al2O3/ZrO2 (CZAZr) catalysts were prepared by a coprecipitation method. CO2 was introduced into aging solution to get CZAZr precusors with malachite phase. The x value inCZAZr(x) is the metallic ratio of the Zr component at a fixed metallic ratio of Cu:Zn:Al of 6:3:1. TOFMeOH of CZAZr(0) was 0.56 μmol/m2Cu/s at 250 °C, 50 atm and a gas hourly space velocity (GHSV) of 12 000 mL/gcat/h. TOFMeOHs of CZAZr(1), CZAZr (2), CZAZr(3), and CZAZr(4) were 0.64, 0.90, 0.99, and 1.08 μmol/m2Cu/s at the same reaction condition, respectively. TOFMeOHs of CZAZr catalysts increased with increasing ZrO2 content, indicating that high TOFMeOH of CZAZr catalysts came from ZrO2 as compared with CZAZr(0) catalysts. These kinetic data on CZAZr catalysts in the practical reaction condition proved the suggestion from previous infrared (IR) study on Cu/Zr catalysts. ZrO2 afforded the adsorption sites for CO and CO2 insertion into Zr-OH and Cu supplied active hydrogen to ZrO2 for hydrogenating formate and hydroxycarbonate to methanol on ZrO2 in addition to methanol synthesis on Cu/ZnO/Al2O3.

KW - Cu/ZnO/AlO/ZrO catalyst

KW - Hydrogen spillover

KW - Methanol synthesis

KW - Structure sensitivity

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