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Methanol steam reforming over Cu supported on SiO2, amorphous SiO2-Al2O3, and Al2O3 catalysts: Influence of support nature
International Journal of Energy Research ( IF 4.3 ) Pub Date : 2021-10-06 , DOI: 10.1002/er.7363 Masoumeh Khanchi 1 , Seyed Mohammad Ali Mousavian 1 , Saeed Soltanali 2
International Journal of Energy Research ( IF 4.3 ) Pub Date : 2021-10-06 , DOI: 10.1002/er.7363 Masoumeh Khanchi 1 , Seyed Mohammad Ali Mousavian 1 , Saeed Soltanali 2
Affiliation
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SiO2-, Al2O3-, and SiO2-Al2O3-based catalysts containing different Si/Al ratios have been prepared to study the effect of the support nature on the methanol steam reforming process catalyst. Methanol steam reforming reaction was carried out using each of the catalysts in the temperature range of 150°C to 300°C, weight hourly space velocity (WHSV) of 1.8 h−1, and atmospheric conditions in a quartz reactor. The properties of the synthesized catalysts were determined by the X-ray powder diffraction (XRD), Brunauer-Emmett-Teller (BET), field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR), H2-temperature-programmed reduction (TPR), and temperature-programmed desorption (TPD) techniques. SiO2-Al2O3-based catalysts showed better performance (yield @300°C: 87.2% (Si/Al = 0.01); 82.4% (Si/Al = 0.05); 76.6% (Si/Al = 0. 1); 69.1% (Si/Al = 0.2)) compared to SiO2 (59.3%)- and Al2O3 (49.5%)-based catalysts. In addition, the γ-Al2O3-based catalyst produced a relatively large amount of CO (6.8% @ 150°C and 9.9% @300°C), whereas those supported on amorphous SiO2-Al2O3 yielded much less CO. In SiO2-Al2O3-based catalysts, increasing Si/Al ratio decreased the catalyst reductivity. In addition, the SiO2-Al2O3-based catalyst with the least Si/Al ratio, which had maximum reductivity and minimum number of total acid sites, performed much better than other SiO2-Al2O3-based catalysts (yield: 28.3% @ 150°C and 87.2% @300°C).
中文翻译：
SiO2、无定形 SiO2-Al2O3 和 Al2O3 催化剂负载 Cu 的甲醇蒸汽重整：载体性质的影响
制备了不同Si/Al比的SiO 2 -、Al 2 O 3 -和SiO 2 -Al 2 O 3基催化剂，研究了载体性质对甲醇蒸汽重整工艺催化剂的影响。甲醇水蒸气重整反应使用各催化剂在150℃～300℃的温度范围、1.8h -1的重时空速(WHSV) 、大气条件下在石英反应器中进行。合成催化剂的性质通过X射线粉末衍射(XRD)、Brunauer-Emmett-Teller(BET)、场发射扫描电子显微镜(FESEM)、傅里叶变换红外光谱(FTIR)、H 2-程序升温还原（TPR）和程序升温解吸（TPD）技术。SiO 2 -Al 2 O 3基催化剂表现出更好的性能（产率@300°C：87.2% (Si/Al = 0.01); 82.4% (Si/Al = 0.05); 76.6% (Si/Al = 0. 1 ); 69.1% (Si/Al = 0.2)) 与基于 SiO 2 (59.3%) 和 Al 2 O 3 (49.5%) 的催化剂相比。此外，基于γ-Al 2 O 3的催化剂产生相对大量的CO（6.8%@150°C 和9.9%@300°C），而负载在无定形SiO 2 -Al 2 O 3上的催化剂产生较多的CO。较少的CO。在SiO 2 -Al 2 O3基催化剂，增加Si/Al比会降低催化剂的还原性。此外，具有最小Si/Al比的SiO 2 -Al 2 O 3基催化剂具有最大的还原性和最少的总酸位点数，其性能远优于其他SiO 2 -Al 2 O 3基催化剂（产率：28.3% @ 150°C 和 87.2% @300°C)。
更新日期：2021-10-06
中文翻译：
SiO2、无定形 SiO2-Al2O3 和 Al2O3 催化剂负载 Cu 的甲醇蒸汽重整：载体性质的影响
制备了不同Si/Al比的SiO 2 -、Al 2 O 3 -和SiO 2 -Al 2 O 3基催化剂，研究了载体性质对甲醇蒸汽重整工艺催化剂的影响。甲醇水蒸气重整反应使用各催化剂在150℃～300℃的温度范围、1.8h -1的重时空速(WHSV) 、大气条件下在石英反应器中进行。合成催化剂的性质通过X射线粉末衍射(XRD)、Brunauer-Emmett-Teller(BET)、场发射扫描电子显微镜(FESEM)、傅里叶变换红外光谱(FTIR)、H 2-程序升温还原（TPR）和程序升温解吸（TPD）技术。SiO 2 -Al 2 O 3基催化剂表现出更好的性能（产率@300°C：87.2% (Si/Al = 0.01); 82.4% (Si/Al = 0.05); 76.6% (Si/Al = 0. 1 ); 69.1% (Si/Al = 0.2)) 与基于 SiO 2 (59.3%) 和 Al 2 O 3 (49.5%) 的催化剂相比。此外，基于γ-Al 2 O 3的催化剂产生相对大量的CO（6.8%@150°C 和9.9%@300°C），而负载在无定形SiO 2 -Al 2 O 3上的催化剂产生较多的CO。较少的CO。在SiO 2 -Al 2 O3基催化剂，增加Si/Al比会降低催化剂的还原性。此外，具有最小Si/Al比的SiO 2 -Al 2 O 3基催化剂具有最大的还原性和最少的总酸位点数，其性能远优于其他SiO 2 -Al 2 O 3基催化剂（产率：28.3% @ 150°C 和 87.2% @300°C)。
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