scholarly journals Supported cobalt catalysts for the selective hydrogenation of ethyl levulinate to various chemicals

RSC Advances ◽  
2018 ◽  
Vol 8 (17) ◽  
pp. 9152-9160 ◽  
Author(s):  
Youliang Cen ◽  
Shanhui Zhu ◽  
Jing Guo ◽  
Jiachun Chai ◽  
Weiyong Jiao ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Cobalt Catalyst ◽  
Cobalt Catalysts ◽  
Ethyl Levulinate ◽  
Supported Cobalt Catalysts ◽  
Excellent Selectivity

Biomass-derived ethyl levulinate can flexibly convert to GVL, EHP, 1,4-PDO and 2-MTHF with excellent selectivity on a supported cobalt catalyst.

Fischer–Tropsch synthesis over alumina-supported cobalt catalysts: effects of different spray temperature of aluminum slurry

2016 ◽  
Vol 94 (5) ◽  
pp. 515-522
Author(s):  
Yan Liu ◽  
Litao Jia ◽  
Bo Hou ◽  
Debao Li
Keyword(s):  
Cobalt Catalyst ◽  
Tropsch Synthesis ◽  
Cobalt Catalysts ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
High Conversion Rate ◽  
Supported Cobalt Catalysts ◽  
Aluminum Precursor ◽  
Excellent Stability ◽  
Aluminum Precursors

Aluminum slurry was obtained by precipitating Al(NO3)3·9H2O and ammonium carbonate, and the slurry was dried by adopting spray means. The effects of different spray temperature on the as-synthesised aluminum precursors, calcined alumina, and the supported cobalt catalysts were investigated by the characterizations of SEM, XRD, TG-DTA, H2-TPD, H2-TPR, etc., and the activity and stability of the as-prepared catalysts for Fischer–Tropsch synthesis were also studied. It indicated that the aluminum precursor spray dried at 250 °C exhibited homogeneous microspheres, the calcined alumina exhibited single-particle size distribution and monomodal pore distribution, and the corresponding supported cobalt catalyst possessed proper cobalt particles (6.4 nm), which was benefitial for acquiring a high conversion rate (the turnover frequency is 17.2 × 10−3/s) and excellent stability (the deactivation rate is 0.31%) for Fischer–Tropsch synthesis.

Hydrodeoxygenation of sulfoxides into sulfides under mild conditions over a heterogeneous cobalt catalyst

2021 ◽  
Author(s):  
Yanxin Wang ◽  
Kaiyue Yao ◽  
Duan-Jian Tao ◽  
Nian Xiang ◽  
Wei Wang ◽  
...  
Keyword(s):  
Cobalt Catalyst ◽  
Cobalt Catalysts ◽  
Nitrogen Doped ◽  
Mild Conditions ◽  
One Step ◽  
Supported Cobalt Catalysts ◽  
The One ◽  
Nitrogen Doped Carbon

In this study, the Al2O3/nitrogen-doped carbon supported cobalt catalysts (Co-NC/Al2O3-T, where T represents the pyrolysis temperatures) were successfully prepared by the one-step pyrolysis step and studied for the hydrodeoxygenation of...

Efficient selective hydrogenation of cinnamaldehyde over zeolite supported cobalt catalysts in water

2015 ◽  
Vol 115 (1) ◽  
pp. 283-292 ◽  
Author(s):  
Xin Bo Zhang ◽  
Ya Juan Zhang ◽  
Feng Chen ◽  
Yi Zhi Xiang ◽  
Bin Zhang ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Cobalt Catalysts ◽  
Supported Cobalt Catalysts

Cobalt catalysts: very efficient for hydrogenation of biomass-derived ethyl levulinate to gamma-valerolactone under mild conditions

2014 ◽  
Vol 16 (8) ◽  
pp. 3870-3875 ◽  
Author(s):  
Huacong Zhou ◽  
Jinliang Song ◽  
Honglei Fan ◽  
Binbin Zhang ◽  
Yingying Yang ◽  
...  
Keyword(s):  
Cobalt Catalyst ◽  
Cobalt Catalysts ◽  
Mild Conditions ◽  
Ethyl Levulinate

A cobalt catalyst is very efficient and stable for hydrogenation of biomass-derived ethyl levulinate to gamma-valerolactone under mild conditions.

A carbonized cobalt catalyst supported by acid-activated clay for the selective hydrogenation of acetylene

2021 ◽  
Author(s):  
Aizat Aitugan ◽  
Sandugash Tanirbergenova ◽  
Yerbol Tileuberdi ◽  
Onuralp Yucel ◽  
Dildara Tugelbayeva ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Cobalt Catalyst ◽  
Selective Hydrogenation Of Acetylene ◽  
Acid Activated Clay
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