Intrinsic Reaction Kinetics of Higher Alcohol Synthesis from Synthesis Gas over a Sulfided Alkali-Promoted Co−Rh−Mo Trimetallic Catalyst Supported on Multiwalled Carbon Nanotubes (MWCNTs)

2010 ◽  
Vol 24 (8) ◽  
pp. 4130-4137 ◽  
Author(s):  
Venkateswara Rao Surisetty ◽  
Ajay Kumar Dalai ◽  
Janusz Kozinski
Keyword(s):  
Carbon Nanotubes ◽  
Reaction Kinetics ◽  
Multiwalled Carbon Nanotubes ◽  
Synthesis Gas ◽  
Higher Alcohol Synthesis ◽  
Multiwalled Carbon ◽  
Higher Alcohol ◽  
Alcohol Synthesis ◽  
Trimetallic Catalyst ◽  
Kinetics Of

scholarly journals Novel Ni-Co-Mo-K Catalysts Supported on Multiwalled Carbon Nanotubes for Higher Alcohols Synthesis

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Venkateswara Rao Surisetty ◽  
Janusz Kozinski ◽  
Ajay Kumar Dalai
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Synthesis Gas ◽  
Space Velocity ◽  
Molar Ratio ◽  
Higher Alcohols ◽  
Multiwalled Carbon ◽  
Ni Content ◽  
Trimetallic Catalyst ◽  
Higher Alcohols Synthesis

Alkali-promoted Ni-Co-Mo catalysts supported on multiwalled carbon nanotubes (MWCNTs) were prepared using 9 wt% K, 4.5 wt% Co, and 15 wt% Mo, whereas Ni content was varied from 0 to 6 wt%. The catalysts were extensively characterized and studied for higher alcohols synthesis from synthesis gas. Alkali-promoted trimetallic catalyst with 3 wt% Ni showed the highest total alcohols yield of 0.284 gm/(gm of cat./h), ethanol selectivity of 20%, and higher alcohols selectivity of 32% at 330°C and 9.0 MPa using gas hourly space velocity (GHSV) of 3.8 m3 (STP)/kg of catalyst/h and H2 to CO molar ratio of 1.25.

AMIDE FUNCTIONALIZATION OF MULTIWALLED CARBON NANOTUBES AND THEIR EVALUATION FOR Hg(II) REMOVAL FROM WATER

2011 ◽  
Vol 10 (01n02) ◽  
pp. 205-208 ◽  
Author(s):  
R. K. MISRA ◽  
S. K. JAIN ◽  
THOMAS N. ABRAHAM ◽  
P. K. KHATRI
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Chemical Interaction ◽  
Mercury Removal ◽  
Multiwalled Carbon ◽  
Kinetics Of Adsorption ◽  
Reaction Rate Constants ◽  
Hydrophilic Character ◽  
Short Time ◽  
Kinetics Of

This paper deals with the amide functionalization of multiwalled carbon nanotubes (MWNTs) and its evaluation for mercury removal from water. The functionalized MWNTs were characterized using FTIR for structural modification. The properties of MWNTs such as hydrophilic character, nature of surface, selective chemical interaction with mercury, etc., were significantly improved after functionalization making them promising adsorbents for mercury removal. The equilibrium is achieved in short time of 5 h resulting in up to 80% removal of Hg (II). Kinetics of adsorption was established and found to follow first-order reversible kinetics with forward and backward reaction rate constants 0.6648 and 0.1662, respectively.

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