scholarly journals Scrap waste automotive converters as efficient catalysts for the continuous-flow hydrogenations of biomass derived chemicals

2020 ◽  
Vol 22 (4) ◽  
pp. 1414-1423
Author(s):  
Camilla Maria Cova ◽  
Alessio Zuliani ◽  
Roberta Manno ◽  
Victor Sebastian ◽  
Rafael Luque
Keyword(s):  
Catalytic Activity ◽  
Continuous Flow ◽  
Catalytic Converters ◽  
Automotive Catalytic Converters

The catalytic activity of scrap ceramic-cores of automotive catalytic converters (SCATs) was investigated in the continuous-flow hydrogenation of different biomass-derived chemicals.

scholarly journals Catalytic Hydrodechlorination of Chlorophenols in a Continuous Flow Pd/CNT-Ni Foam Micro Reactor Using Formic Acid as a Hydrogen Source

Catalysts ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 77 ◽  
Author(s):  
Jun Xiong ◽  
Ying Ma
Keyword(s):  
Catalytic Activity ◽  
Formic Acid ◽  
Continuous Flow ◽  
Catalyst Surface ◽  
Reactor System ◽  
Packed Bed Reactor ◽  
Pd Catalyst ◽  
Ni Foam ◽  
Catalytic Hydrodechlorination ◽  
Micro Reactor

Catalytic hydrodechlorination (HDC) has been considered as a promising method for the treatment of wastewater containing chlorinated organic pollutants. A continuous flow Pd/carbon nanotube (CNT)-Ni foam micro reactor system was first developed for the rapid and highly efficient HDC with formic acid (FA) as a hydrogen source. This micro reactor system, exhibiting a higher catalytic activity of HDC than the conventional packed bed reactor, reduced the residence time and formic acid consumption significantly. The desired outcomes (dichlorination >99.9%, 4-chlorophenol outlet concentration <0.1 mg/L) can be obtained under a very low FA/substrate molar ratio (5:1) and short reaction cycle (3 min). Field emission scanning electron microcopy (FESEM) and deactivation experiment results indicated that the accumulation of phenol (the main product during the HDC of chlorophenols) on the Pd catalyst surface can be the main factor for the long-term deactivation of the Pd/CNT-Ni foam micro reactor. The catalytic activity deactivation of the micro reactor could be almost completely regenerated by the efficient removal of the absorbed phenol from the Pd catalyst surface.

Automotive catalytic converters: current status and some perspectives

2003 ◽  
Vol 77 (4) ◽  
pp. 419-449 ◽  
Author(s):  
Jan Kašpar ◽  
Paolo Fornasiero ◽  
Neal Hickey
Keyword(s):  
Current Status ◽  
Catalytic Converters ◽  
Automotive Catalytic Converters

scholarly journals Simultaneous leaching of Pt, Pd and Rh from automotive catalytic converters in chloride-containing solutions

2017 ◽  
Vol 786 ◽  
pp. 012042
Author(s):  
M Hasani ◽  
A Khodadadi ◽  
S M J Koleini ◽  
A H Saeedi ◽  
A M Meléndez
Keyword(s):  
Catalytic Converters ◽  
Automotive Catalytic Converters
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