Synthesis, application and kinetic modeling of CeOx–Si–CoMo catalysts for the hydrodesulfurization of dibenzothiophene

2019 ◽  
Vol 4 (4) ◽  
pp. 724-737 ◽  
Author(s):  
Abdulkadir Tanimu ◽  
Saheed A. Ganiyu ◽  
Sagir Adamu ◽  
Khalid Alhooshani

CeOx–Si–CoMo catalysts for efficient hydrodesulfurization (HDS) activity of dibenzothiophene: role of ceria in catalyst activity and product selectivity.

Catalysts ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 928
Author(s):  
Micah Flor V. Montefalcon ◽  
Meliton R. Chiong ◽  
Augustus C. Resurreccion ◽  
Sergi Garcia-Segura ◽  
Joey D. Ocon

Arsenic (As) is a naturally occurring element in the environment that poses significant risks to human health. Several treatment technologies have been successfully used in the treatment of As-contaminated waters. However, limited literature has explored advanced electrocoagulation (EC) processes for As removal. The present study evaluates the As removal performance of electrocoagulation, electrochemical peroxidation (ECP), and photo-assisted electrochemical peroxidation (PECP) technologies at circumneutral pH using electroactive iron electrodes. The influence of As speciation and the role of oxidants in As removal were investigated. We have identified the ECP process to be a promising alternative for the conventional EC with around 4-fold increase in arsenic removal capacity at a competitive cost of 0.0060 $/m3. Results also indicated that the rate of As(III) oxidation at the outset of electrochemical treatment dictates the extent of As removal. Both ECP and PECP processes reached greater than 96% As(III) conversion at 1 C/L and achieved 86% and 96% As removal at 5 C/L, respectively. Finally, the mechanism of As(III) oxidation was evaluated, and results showed that Fe(IV) is the intermediate oxidant generated in advanced EC processes, and the contribution of •OH brought by UV irradiation is insignificant.


Nature Energy ◽  
2020 ◽  
Vol 5 (4) ◽  
pp. 317-325 ◽  
Author(s):  
Rosa M. Arán-Ais ◽  
Fabian Scholten ◽  
Sebastian Kunze ◽  
Rubén Rizo ◽  
Beatriz Roldan Cuenya
Keyword(s):  

2016 ◽  
Vol 128 (28) ◽  
pp. 8100-8105 ◽  
Author(s):  
Shyam Kattel ◽  
Weiting Yu ◽  
Xiaofang Yang ◽  
Binhang Yan ◽  
Yanqiang Huang ◽  
...  

PLoS ONE ◽  
2014 ◽  
Vol 9 (3) ◽  
pp. e89975 ◽  
Author(s):  
Panpan Hou ◽  
Rong Zhang ◽  
Yongfeng Liu ◽  
Jing Feng ◽  
Wei Wang ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document