Promoting Effect of Pd Addition to Ni0.2Mg0.8Al2O4in Oxidative Steam Reforming of Methane

2006 ◽  
Vol 35 (9) ◽  
pp. 1072-1073 ◽  
Author(s):  
Mohammad Nurunnabi ◽  
Yuya Mukainakano ◽  
Shigeru Kado ◽  
Kimio Kunimori ◽  
Keiichi Tomishige
Keyword(s):  
Steam Reforming ◽  
Promoting Effect ◽  
Steam Reforming Of Methane ◽  
Effect Of Pd

scholarly journals Glycerol Hydrogenolysis with In Situ Hydrogen Produced via Methanol Steam Reforming: The Promoting Effect of Pd on a Cu/ZnO/Al2O3 Catalyst

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 110
Author(s):  
Yuanqing Liu ◽  
Chau T. Q. Mai ◽  
Flora T. T. Ng
Keyword(s):  
Steam Reforming ◽  
Catalyst Activity ◽  
Promoting Effect ◽  
Glycerol Conversion ◽  
Glycerol Hydrogenolysis ◽  
Glycerol Dehydration ◽  
Effect Of Pd ◽  
Al2o3 Catalyst ◽  
Reaction Equilibrium

The glycerol hydrogenolysis to produce 1,2-propanediol without using externally supplied hydrogen was investigated using methanol present in crude glycerol to provide in situ hydrogen via its steam reforming reaction. This paper focuses on the promoting effect of Pd on the reactivity of a Cu/Zn/Al2O3 catalyst. Adding 2 wt% Pd onto a Cu/ZnO/Al2O3 catalyst significantly improved the selectivity to 1,2-propanediol from 63.0% to 82.4% and the glycerol conversion from 70.2% to 99.4%. This enhancement on the catalytic activity by Pd is mainly due to the improved hydrogenation of acetol, which is the intermediate formed during the glycerol dehydration. The rapid hydrogenation of acetol can shift the reaction equilibrium of glycerol dehydration forward resulting in a higher glycerol conversion. The improved reducibility of the catalyst by Pd allows the catalyst to be reduced in situ during the reaction preventing any loss of catalyst activity due to any potential oxidation of the catalyst. The catalyst was slightly deactivated when it was firstly recycled resulting in a 5.4% loss of glycerol conversion due to the aggregation of Cu and the deactivation became less noticeable upon further recycling.

Promoting Effect of CeO2 Addition on Activity and Catalytic Stability in Steam Reforming of Methane over Ni/Al2O3

2011 ◽  
Vol 324 ◽  
pp. 153-156 ◽  
Author(s):  
Abdelmajid Rakib ◽  
Cédric Gennequin ◽  
Thierry Dhainaut ◽  
Sylvain Ringot ◽  
Antoine Aboukaïs ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Reaction Temperature ◽  
Steam Reforming ◽  
Metal Content ◽  
Catalytic Performance ◽  
Methane Steam Reforming ◽  
Impregnation Method ◽  
Promoting Effect ◽  
Methane Steam ◽  
Steam Reforming Of Methane

Hydrogen production by steam reforming of methane was studied over Ni catalysts supported on CeO2, Al2O3 and CeO2-Al2O3. These catalysts were prepared using the impregnation method and characterized by XRD. The effect of CeO2 promoter on the catalytic performance of Ni/Al2O3 catalyst for methane steam reforming reaction was investigated. In fact, CeO2 had a positive effect on the catalytic activity in this reaction. Experimental results demonstrated that Ni/CeO2-Al2O3 catalyst showed excellent catalytic activity and high reaction performance. In addition, the effects of reaction temperature and metal content on the conversion of CH4 and H2/CO ratio were also investigated. Results indicated that CH4 conversion increased significantly with the increase of the reaction temperature and metal content.

Promoting Effect of Pt on Self-activation over NiO–MgO Solid Solution in Oxidative Steam Reforming of Methane

2005 ◽  
Vol 103 (3-4) ◽  
pp. 277-281 ◽  
Author(s):  
Mohammad Nurunnabi ◽  
Baitao Li ◽  
Kimio Kunimori ◽  
Kimihito Suzuki ◽  
Ken-ichiro Fujimoto ◽  
...  
Keyword(s):  
Solid Solution ◽  
Steam Reforming ◽  
Promoting Effect ◽  
Steam Reforming Of Methane

Carbon monoxide formation as an intermediate product in photocatalytic steam reforming of methane with lanthanum-doped sodium tantalate

2021 ◽  
Author(s):  
Wirya Sarwana ◽  
Akihiko Anzai ◽  
Daichi Takami ◽  
Akira Yamamoto ◽  
Hisao Yoshida
Keyword(s):  
Carbon Monoxide ◽  
Solar Energy ◽  
Steam Reforming ◽  
Intermediate Product ◽  
Room Temperature ◽  
Carbon Monoxide Formation ◽  
Steam Reforming Of Methane

Photocatalytic steam reforming of methane (PSRM) has been studied as an attractive method to produce hydrogen by utilizing photoenergy like solar energy around room temperature with metal-loaded photocatalysts, where methane...

scholarly journals Syngas Production from CO2Reforming and CO2-steam Reforming of Methane over Ni/Ce-SBA-15 Catalyst

2017 ◽  
Vol 206 ◽  
pp. 012017
Author(s):  
J S Tan ◽  
H T Danh ◽  
S Singh ◽  
Q D Truong ◽  
H D Setiabudi ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Syngas Production ◽  
Steam Reforming Of Methane
Sign in / Sign up

Export Citation Format

Share Document