CO2 reforming of CH4 over Ni/SBA-15 prepared by surfactant-assisted impregnation method: Comparative study of surfactant types

2018 ◽  
Vol 5 (10) ◽  
pp. 21644-21651 ◽  
Author(s):  
C.C. Chong ◽  
A.H.K. Owgi ◽  
N. Ainirazali ◽  
S.Y. Chin ◽  
H.D. Setiabudi
2021 ◽  
Vol 10 (1) ◽  
pp. 104-108
Author(s):  
Phuong Phan Hong ◽  
Anh Nguyen Phung ◽  
Huy Tran Anh ◽  
Tri Nguyen ◽  
Loc Luu Cam

A series of 10%wtNiO/CeO2-nanorod catalyst without and with Cr2O3 additive was prepared by simultaneous impregnation method. Several techniques, including N2 physisorption measurements, X-ray powder diffraction (XRD), temperature-programmed reduction using H2 (H2-TPR), CO2 temperature-programmed desorption (CO2-TPD), scanning electron microscope (SEM) and transmission electron microscopy (TEM) were used to investigate catalysts’ physico-chemical properties. The activity of the catalysts in combined steam and CO2 reforming of CH4 (BRM) was investigated at temperature range of 550-800 °C. The results showed that 10%NiO0.1%Cr2O3/CeO2 catalyst had the best catalytic performance due to a better reducibility and basicity. At 700 °C and CH4:CO2:H2O molar ratio in feed stream of 3:1.2:2.4, both conversion of CH4 and CO2 on this catalyst reached 98.5%.


2018 ◽  
Vol 55 (1B) ◽  
pp. 49
Author(s):  
Phuong P. H.

A series of 10 wt% Ni/Al2O3–MO (M = Mg, Ca, Ba) catalyst was prepared by impregnation method for applying in the combined steam and carbon dioxide reforming of methane (CSCRM). In this study, five supported nickel catalysts were impregnated on different supports. All of the supports have been obtained by co–precipitation method and also have been investigated. Several techniques, including N2 physisorption measurements, X–ray powder diffraction (XRD), temperature–programmed reduction using H2 (H2–TPR), and transmission electron microscopy (TEM) were used to investigate catalysts’ physicochemical properties. The results showed that MgO was the most suitable promoter comparing with CaO and BaO in CSCRM. The presence of MgO in Ni/Al2O3 changed catalysts’ characteristics leading to an increase in the catalytic activity and stability with time on stream (TOS). It was found that the suitable catalyst was Ni–based on Al2O3–MgO of mass ratio 2:1 which showed a high metal dispersion as well as dominated spinel structure. The CH4 and CO2 conversion at 800 °C reached 99.8 % and 51.7 %, respectively. Catalytic stability of this catalyst with TOS at 800 °C could reach to more than 20 hours until it started decreasing.


Author(s):  
Ngoc Thang Tran ◽  
P. Senthil Kumar ◽  
Quyet Van Le ◽  
Nguyen Van Cuong ◽  
Pham T. T. Phuong ◽  
...  

2010 ◽  
Vol 385 (1-2) ◽  
pp. 92-100 ◽  
Author(s):  
Ruiqin Yang ◽  
Chuang Xing ◽  
Chengxue Lv ◽  
Lei Shi ◽  
Noritatsu Tsubaki

ACS Catalysis ◽  
2016 ◽  
Vol 6 (7) ◽  
pp. 4330-4339 ◽  
Author(s):  
Kaidi Yuan ◽  
Jian-Qiang Zhong ◽  
Xiong Zhou ◽  
Leilei Xu ◽  
Susanna L. Bergman ◽  
...  

RSC Advances ◽  
2017 ◽  
Vol 7 (44) ◽  
pp. 27689-27698 ◽  
Author(s):  
Weiwei Shen ◽  
Dongsen Mao ◽  
Zhimin Luo ◽  
Jun Yu

A series of mesoporous SBA-15 supported CuO–CeO2 catalysts were prepared by a surfactant-assisted impregnation method with PEG 200 as the surfactant.


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