Kinetic and Equilibrium Adsorption Studies for Removal of Naphthenic Acids Present in Model Mixture of Aviation Kerosene

2016 ◽  
Vol 204 (1) ◽  
pp. 105-110 ◽  
Author(s):  
Graziele E. Do Nascimento ◽  
Marta M. M. B. Duarte ◽  
Deivson C. S. Sales ◽  
Celmy M. B. De M. Barbosa
Keyword(s):  
Naphthenic Acids ◽  
Equilibrium Adsorption ◽  
Model Mixture ◽  
Adsorption Studies ◽  
Aviation Kerosene

scholarly journals Removal of naphthenic acids using activated charcoal: Kinetic and equilibrium studies

2018 ◽  
Vol 36 (7-8) ◽  
pp. 1405-1421 ◽  
Author(s):  
Natália F Campos ◽  
Celmy MBM Barbosa ◽  
Joan M Rodríguez-Díaz ◽  
Marta MMB Duarte
Keyword(s):  
Activated Charcoal ◽  
Naphthenic Acid ◽  
Naphthenic Acids ◽  
Model Mixture ◽  
Adsorptive Capacity ◽  
Order Kinetic ◽  
Equilibrium Studies ◽  
Aviation Kerosene ◽  
Equilibrium Study ◽  
Pseudo Second Order

This study proposes the use of activated charcoal made from Umbaúba wood as an adsorbent for the removal of naphthenic acid in an aviation kerosene model mixture. The activated charcoal was characterised as mesoporous with a carbon graphite profile and presented pHpzc equal to 10.5. The best working conditions were obtained for activated charcoal levels of <0.09 mm and 300 r min−1. The system reached the equilibrium after 360 min, without significant statistical difference for the pseudo-first- and pseudo-second-order kinetic models. The Weber–Morris and Boyd models corroborated the conclusion that adsorption is not controlled only by the intraparticle diffusion step. For the equilibrium study, the adsorptive capacity obtained was of 1.1 g g−1, with the Brunauer–Emmett–Teller model better correlating with the experimental data. Given the results obtained, the activated charcoal demonstrated to have a remarkable potential for removing naphthenic acid in an aviation kerosene model mixture.

scholarly journals Removing polycyclic aromatic hydrocarbons from water using granular activated carbon: kinetic and equilibrium adsorption studies

2018 ◽  
Vol 25 (14) ◽  
pp. 13511-13524 ◽  
Author(s):  
Dinushika Eeshwarasinghe ◽  
Paripurnanda Loganathan ◽  
Mahatheva Kalaruban ◽  
Danious Pratheep Sounthararajah ◽  
Jaya Kandasamy ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Activated Carbon ◽  
Aromatic Hydrocarbons ◽  
Granular Activated Carbon ◽  
Equilibrium Adsorption ◽  
Adsorption Studies ◽  
Polycyclic Aromatic

Equilibrium Adsorption Studies of CO2, CH4, and N2on Amine Functionalized Polystyrene

2014 ◽  
Vol 49 (15) ◽  
pp. 2376-2388 ◽  
Author(s):  
Kalpesh M. Khot ◽  
Parminder Kaur K. S. Heer ◽  
Rajesh B. Biniwale ◽  
Vilas G. Gaikar
Keyword(s):  
Equilibrium Adsorption ◽  
Adsorption Studies ◽  
Amine Functionalized
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