scholarly journals Reversible Segregation of Ni in LaFe 0.8 Ni 0.2 O 3± δ During Coke Removal

ChemCatChem ◽  
2018 ◽  
Vol 10 (19) ◽  
pp. 4456-4464 ◽  
Author(s):  
Patrick Steiger ◽  
Maarten Nachtegaal ◽  
Oliver Kröcher ◽  
Davide Ferri
Keyword(s):  
Coke Removal

Assessment of atomic force and scanning electron microscopes for characterization of commercial and electrospun nylon membranes for coke removal from wastewater

2013 ◽  
Vol 52 (34-36) ◽  
pp. 6611-6619 ◽  
Author(s):  
Elham Mirtalebi ◽  
Mohammad Mahdi A. Shirazi ◽  
Ali Kargari ◽  
Meisam Tabatabaei ◽  
Seeram Ramakrishna
Keyword(s):  
Atomic Force ◽  
Electron Microscopes ◽  
Scanning Electron Microscopes ◽  
Coke Removal ◽  
Scanning Electron

Coke removal of the HZSM-12 zeolite with different silica/alumina ratio

2004 ◽  
Vol 75 (2) ◽  
pp. 699-704 ◽  
Author(s):  
A. O. S. Silva ◽  
M. J. B. Souza ◽  
J. M. F. B. Aquino ◽  
V. J. Fernandes Jr. ◽  
A. S. Araújo
Keyword(s):  
Silica Alumina ◽  
Coke Removal ◽  
Silica Alumina Ratio

Effective Coke Removal in Methane to Benzene (MTB) Reaction on Mo/HZSM-5 Catalyst by H2 and H2O Co-addition to Methane

2005 ◽  
Vol 104 (1-2) ◽  
pp. 63-66 ◽  
Author(s):  
Hongtao Ma ◽  
Ryoichi Kojima ◽  
Satoshi Kikuchi ◽  
Masaru Ichikawa
Keyword(s):  
Co Addition ◽  
Coke Removal

Ultrahigh-Pressure Waterjets for Coke Removal in Jet Engine Fuel Tubes, with Laser-Optic Inspection

1996 ◽  
Author(s):  
D. E. Steele ◽  
J. L. Doyle ◽  
D. O. Monserud ◽  
P. J. Miles
Keyword(s):  
Ultrahigh Pressure ◽  
Engine Fuel ◽  
Jet Engine ◽  
Coke Removal ◽  
Laser Optic

scholarly journals Impact of the Framework Type on the Regeneration of Coked Zeolites by Non-Thermal Plasma in a Fixed Bed Dielectric Barrier Reactor

Catalysts ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 985
Author(s):  
Amir Astafan ◽  
Alexander Sachse ◽  
Catherine Batiot-Dupeyrat ◽  
Ludovic Pinard
Keyword(s):  
Thermal Plasma ◽  
Fixed Bed ◽  
Three Dimensional ◽  
Shape Selectivity ◽  
Acid Sites ◽  
Dielectric Barrier ◽  
Fau Zeolite ◽  
Ring Channel ◽  
Non Thermal Plasma ◽  
Coke Removal

The formation of coke as a result of propene transformation at 623 K on zeolites results from a product shape selectivity mechanism of which the products are polyaromatic molecules, such as pyrene on MFI, anthracene on MOR, pyrene and coronene on FAU. Zeolite regeneration can be achieved by using non-thermal plasma (NTP), with decreased energy consumption, employing a fixed bed dielectric barrier reactor. The efficiency of this alternative regeneration process depends on the coke toxicity. On MFI and FAU (featuring three-dimensional 10 and 12 ring channel systems, respectively) coking occurs by poisoning the Brønsted acid sites; on MOR, (presenting a one-dimensional 12 ring channel system) pore blocking takes place, leading to higher coke toxicity. A complete coke removal is achieved on MFI and FAU zeolites using NTP within 3 h, while for MOR coke, removal proceeds slower and is incomplete after 3 h on stream. Hence, the efficiency of regeneration is impacted by the accessibility of active oxygenated species generated under plasma (e.g., O*, O2+) to coke molecules.

Coke removal from petrochemical oily wastewater using γ-Al2O3 based ceramic microfiltration membrane

Desalination ◽  
2012 ◽  
Vol 293 ◽  
pp. 87-93 ◽  
Author(s):  
Sayed Siavash Madaeni ◽  
Hossein Ahmadi Monfared ◽  
Vahid Vatanpour ◽  
Ahmad Arabi Shamsabadi ◽  
Ehsan Salehi ◽  
...  
Keyword(s):  
Oily Wastewater ◽  
Microfiltration Membrane ◽  
Coke Removal

scholarly journals Advanced oxidation process for coke removal: A systematic study of hydrogen peroxide and OH-derived-Fenton radicals of a fouled zeolite

2018 ◽  
Vol 562 ◽  
pp. 215-222 ◽  
Author(s):  
María V. Morales ◽  
Kinga Góra-Marek ◽  
Hermen Musch ◽  
Antonio Pineda ◽  
Blaine Murray ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Systematic Study ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Advanced Oxidation ◽  
Coke Removal
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