scholarly journals EFFECT OF CONCENTRATION METAL PRECURSOR Co AND Mo ON CHARACTER OF CoMo / USY CATALYST

2016 ◽  
Vol 10 (1) ◽  
pp. 40
Author(s):  
Khoirina Dwi Nugrahaningtyas ◽  
Yuniawan Hidayat ◽  
Tiara Diah Saputri

<p>The preparation and characterization of bimetallic catalysts using impregnation method with a variation of concentration of precursor sequence Co and Mo metal  obtained  catalyst K 1 [Co (0.018 M) - Mo (0.037 M)/USY]. K 2 [Co (0.026 M) - Mo (0.055 M)/USY], K 3 [Co (0.035 M) - Mo (0.074 M)/USY], K 4 [Co (0.05 M) - Mo (0.11 M )/USY] and K 5 [Co (0.107 M) - Mo (0.22 M)/USY].</p><p>Character of the catalyst in terms  of crystallinity was analyzed by XRD. The result shows that there is no cristalinity damage of USY after impregnation but the amorphous cristalin structure was obtained.  Amount of metal content was analyzed by XRF and the catalyst morphology by SEM-EDS. The result shows that the higher the concentration of Co and Mo so that find the higher content of metal in catalyst of the prepared catalyst increase. K 4 shows the best characteristic of catalysts prepared in this research. Analysis of K 4 is proving that Co and Mo are presented in catalyst</p>

2016 ◽  
Vol 10 (1) ◽  
pp. 40 ◽  
Author(s):  
Khoirina Dwi Nugrahaningtyas ◽  
Yuniawan Hidayat ◽  
Tiara Diah Saputri

<p>The preparation and characterization of bimetallic catalysts using impregnation method with a variation of concentration of precursor sequence Co and Mo metal  obtained  catalyst K 1 [Co (0.018 M) - Mo (0.037 M)/USY]. K 2 [Co (0.026 M) - Mo (0.055 M)/USY], K 3 [Co (0.035 M) - Mo (0.074 M)/USY], K 4 [Co (0.05 M) - Mo (0.11 M )/USY] and K 5 [Co (0.107 M) - Mo (0.22 M)/USY].</p><p>Character of the catalyst in terms  of crystallinity was analyzed by XRD. The result shows that there is no cristalinity damage of USY after impregnation but the amorphous cristalin structure was obtained.  Amount of metal content was analyzed by XRF and the catalyst morphology by SEM-EDS. The result shows that the higher the concentration of Co and Mo so that find the higher content of metal in catalyst of the prepared catalyst increase. K 4 shows the best characteristic of catalysts prepared in this research. Analysis of K 4 is proving that Co and Mo are presented in catalyst</p>


2016 ◽  
Vol 6 (12) ◽  
pp. 4327-4336 ◽  
Author(s):  
Y. Kathiraser ◽  
J. Ashok ◽  
S. Kawi

Highly dispersed Ni–Fe bimetallic catalysts supported on mesoporous SBA-15 were synthesized via an incipient wetness impregnation method by impregnation of a small amount of oleic acid mixed with a metal precursor on the SBA-15 support.


2019 ◽  
Vol 17 (1) ◽  
pp. 1061-1070
Author(s):  
Khoirina Dwi Nugrahaningtyas ◽  
Nining Rahmawati ◽  
Fitria Rahmawati ◽  
Yuniawan Hidayat

AbstractThe synthesis of CoMo/Mordenite (CoMo/MOR) catalysts was conducted using a co-impregnation method at a various Co/Mo ratios. The produced catalysts were then characterized by X-ray diffraction, total acidity analysis, and scanning electron microscopy. The activity of the catalyst in a hydrotreatment reaction was evaluated by applying the catalyst as a reduced-catalyst to the hydrocracking (HC) reaction of anisole molecules. Analysis of the diffraction data using the Le Bail refinement technique showed that the metal phase was successfully impregnated into the MOR. In addition, increasing the metal content resulted in an increase in the acidity of the catalysts and changed the morphology of the catalysts from homogeneous to heterogeneous with larger particle size. According to the data of GCMS, it is known that the catalysts successfully removed methyl group of anisole molecules. Hydrotreatment reaction with the prepared-catalyst produced 4.77% of phenols. It is 122 % higher than the reaction with MOR catalyst.


2016 ◽  
Vol 33 (7) ◽  
pp. 419-437 ◽  
Author(s):  
Lidia E. Chinchilla ◽  
Carol Olmos ◽  
Mert Kurttepeli ◽  
Sara Bals ◽  
Gustaaf Van Tendeloo ◽  
...  

1990 ◽  
Vol 59 (1) ◽  
pp. 45-58 ◽  
Author(s):  
M. Shimokawabe ◽  
H. Asakawa ◽  
N. Takezawa
Keyword(s):  

1998 ◽  
Vol 358 (2) ◽  
pp. 177-183 ◽  
Author(s):  
M.J Martı́n ◽  
F Pablos ◽  
A.G González
Keyword(s):  

RSC Advances ◽  
2017 ◽  
Vol 7 (69) ◽  
pp. 43789-43797 ◽  
Author(s):  
Hongcheng Ruan ◽  
Maiko Nishibori ◽  
Tomoki Uchiyama ◽  
Kakeru Ninomiya ◽  
Kazutaka Kamitani ◽  
...  

A HZSM-5 supported Ag nanoparticles catalyst, which has a Si/Al ratio of 1500, is synthesized by a simple impregnation method for soot oxidation.


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