The Activity and Stability of Promoted Cu/ZnO/Al2O3 Catalyst for CO2 Hydrogenation to Methanol

被引：3

作者：

Berahim, Nor Hafizah ^{[1
,2
]}

Zabidi, Noor Asmawati Mohd ^{[2
]}

Ramli, Raihan Mahirah ^{[3
]}

Suhaimi, Nur Amirah ^{[2
]}

机构：

[1] PETRONAS Res Sdn Bhd, Grp Res & Technol, Carbon Capture Utilizat & Storage Dept, Kajang 43000, Selangor, Malaysia

[2] Univ Teknol PETRONAS, Inst Contaminant Management Oil & Gas, Ctr Contaminant Control & Utilizat CenCoU, Dept Fundamental & Appl Sci, Seri Iskandar 32610, Perak, Malaysia

[3] Univ Teknol PETRONAS, Ctr Innovat Nanostruct & Nanodevices COINN, Dept Chem Engn, Seri Iskandar 32610, Perak, Malaysia

来源：

PROCESSES | 2023年 / 11卷 / 03期

关键词：

Cu; ZnO; Al2O3; catalyst; methanol synthesis; stability; activity; SULFUR TOLERANCE; CARBON-DIOXIDE; DEACTIVATION; ADSORPTION; INTERFACE; SURFACE; SYNGAS; SITES; SIZE; XPS;

D O I：

10.3390/pr11030719

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Cu/ZnO/Al2O3 catalyst with the addition of tri-promoters (Mn/Nb/Zr) was investigated with respect to their catalytic activity and stability in a prolonged reaction duration in methanol synthesis. Spent catalysts were characterized using N-2 adsorption-desorption, FESEM/EDX, TEM, N2O chemisorption, and XPS for their physicochemical properties. The catalyst longevity study was evaluated at two days, seven days, and 14 days at 300 degrees C, 31.25 bar, 2160 mL/g.hr GHSV, and H-2:CO2 at 10:1. The CO2 conversion and methanol yield decreased by about 5.7% and 7.7%, respectively, when the reaction duration was prolonged to 14 days. A slight reduction in catalytic activity under prolonged reaction duration was found due to thermal degradation.

引用

页数：14

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