Hydrogen production by methane decomposition over Ni–Cu–SiO2 catalysts: effect of temperature on catalyst deactivation

RSC Advances ◽  
2016 ◽  
Vol 6 (57) ◽  
pp. 52154-52163 ◽  
Author(s):  
Jiamao Li ◽  
Chao Xiao ◽  
Liangping Xiong ◽  
Xiaojun Chen ◽  
Linjie Zhao ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Catalyst Deactivation ◽  
Methane Decomposition ◽  
Effect Of Temperature

The activities of 65% Ni–10% Cu–SiO2 catalysts under different reaction temperatures using route I and route II.

Statistical Modeling of Hydrogen Production Via Carbonaceous Catalytic Methane Decomposition

2018 ◽  
Vol 140 (7) ◽  
Author(s):  
Vidyasagar Shilapuram ◽  
Bishwadeep Bagchi ◽  
Nesrin Ozalp ◽  
Richard Davis
Keyword(s):  
Hydrogen Production ◽  
Statistical Modeling ◽  
Catalyst Deactivation ◽  
Catalyst Activity ◽  
Decomposition Reaction ◽  
Initial Reaction Rate ◽  
Methane Decomposition ◽  
Quadratic Model ◽  
Initial Reaction ◽  
Statistical Regression

Hydrogen production via carbonaceous catalytic methane decomposition is a complex process with simultaneous reaction, catalyst deactivation, and carbon agglomeration. Conventional reaction and deactivation models do not predict the progress of reaction accurately. Thus, statistical modeling using the method of design of experiments (DoEs) was used to design, model, and analyze experiments of methane decomposition to determine the important factors that affect the rates of reaction and deactivation. A variety of statistical models were tested in order to identify the best one agreeing with the experimental data by analysis of variance (ANOVA). Statistical regression models for initial reaction rate, catalyst activity, deactivation rate, and carbon weight gain were developed. The results showed that a quadratic model predicted the experimental findings. The main factors affecting the dynamics of the methane decomposition reaction and the catalyst deactivation rates for this process are partial pressure of methane, reaction temperature, catalytic activity, and residence time.

Integrating Catalysis of Methane Decomposition and Electrocatalytic Hydrogen Evolution with Ni/CeO 2 for Improved Hydrogen Production Efficiency

ChemSusChem ◽  
2019 ◽  
Vol 12 (5) ◽  
pp. 1000-1010 ◽  
Author(s):  
Cai Zhang ◽  
Wei Zhang ◽  
Nicholas E. Drewett ◽  
Xiyang Wang ◽  
Seung Jo Yoo ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Production Efficiency ◽  
Methane Decomposition
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