Preparation and characterization of H3PW12O40/ZrO2 catalyst for carbonation of methanol into dimethyl carbonate

2018 ◽  
Vol 44 (6) ◽  
pp. 3797-3811 ◽  
Author(s):  
Chao Lung Chiang ◽  
Kuen Song Lin ◽  
Ssu-Han Yu
2011 ◽  
Vol 401 (1-2) ◽  
pp. 220-225 ◽  
Author(s):  
Fidelis Stefanus Hubertson Simanjuntak ◽  
Tae Kyung Kim ◽  
Sang Deuk Lee ◽  
Byoung Sung Ahn ◽  
Hoon Sik Kim ◽  
...  

2008 ◽  
Vol 8 (1 & 2) ◽  
pp. 19
Author(s):  
Anton Purnomo ◽  
Susan Gellardo ◽  
Leonila Abella ◽  
Hirofumi Hinode ◽  
Chris Salim

Catalytic performance and characterization of Ni/CeO2/ZrO2 and commercial catalyst from Indonesia were investigated in steam reforming of methane. Ni/CeO2/ZrO2 catalyst was prepared using co-impregnation of cerium nitrate and nickel nitrate onto zirconia support material. BET, SEM, EDS, XRD, TPD, TG, and ICP analyses were employed for the characterization of the catalysts. Remarkable catalytic performance of Ni/CeO2/ZrO2 catalyst at 600oC operating temperature and atmospheric pressure of about 74.9% methane conversion was obtained compared to 55.9% using the commercial catalyst. In addition, the presence of cerium in Ni/CeO2/ZrO2 was effective in improving the stability and resistance to coke formation. Less carbon formation was confirmed from the thermo-gravimetric analysis. These results showed that the prepared catalyst is promising in the industrial application which can be used at lower operation temperature for energy saving.


1997 ◽  
Vol 93 (20) ◽  
pp. 3721-3727 ◽  
Author(s):  
Yasushi Yamamoto ◽  
Tokuo Matsuzaki ◽  
Shuji Tanaka ◽  
Keigo Nishihira ◽  
Kyoji Ohdan ◽  
...  

Author(s):  
M. Alhassan ◽  
U. Z. Faruq ◽  
A. Galadima ◽  
M. Suleiman ◽  
Y. Nasiru ◽  
...  

Solid heterogeneous CuO-MoO3/ZrO2 catalyst was prepared by impregnation using suitable precursor materials supported over zirconia. Upon calcination at 450°C for 2 hours, available techniques were employed for the characterization. The available oxides and minerals in the catalyst were revealed by the XRF and XRD profiles respectively. The catalyst crystallite size (131.6nm) was obtained using the Bragg’s equation from the latter. Thermal analysis showed three weight loss stages between (49.25-152.06°C), (152.06-559.47°C) and (559.47-752.0°C) while presence of sulphate and zirconia oxides was revealed by the FTIR analysis due to appearance of absorption bands around 1225-980cm-1 and 700-600 cm-1 respectively.


2015 ◽  
Vol 119 (17) ◽  
pp. 4057-4064 ◽  
Author(s):  
R. Boussessi ◽  
S. Guizani ◽  
M. L. Senent ◽  
N. Jaïdane

2018 ◽  
Vol 42 (10) ◽  
pp. 8253-8260 ◽  
Author(s):  
Petr Švec ◽  
Hélène Cattey ◽  
Zdeňka Růžičková ◽  
Josef Holub ◽  
Aleš Růžička ◽  
...  

NovelC,N-chelated organotin(iv) complexes bearing weakly coordinating carborane moieties were prepared and used as a catalyst precursor for the direct synthesis of dimethyl carbonate (DMC) from CO2and methanol.


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