Reaction Kinetics And Reactor Modelling For Crude Glycerol Autothermal Reforming To Hydrogen Rich Gas

Download or read book Reaction Kinetics and Reactor Modelling For Crude Glycerol Autothermal Reforming to Hydrogen Rich Gas written by Anita Ninson Odoom and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomass as a source of hydrogen production has gained great cognizance amongst researchers. The growing trend of energy is geared towards renewable energy sources for which crude glycerol serves as a viable source for hydrogen production. The most widely studied feedstock for hydrogen production is methane (CH4). In this work, crude glycerol which is a bi product in biodiesel production is considered because it produces higher number of moles of hydrogen than methane and also, adds up to the effective use of crude glycerol as a source of hydrogen. The kinetics for this system was studied over S/C ratio of 2.6 and O2/C 0.125 using 5% Ni/CeZrCa. Both power law and mechanistic kinetic models were studied. The overall power law model for crude glycerol autothermal reforming process was investigated with a pre-exponential factor of 4.3×1010 mol/gcat.min and activation energy of 8.78×104 J/mol. The reaction orders with respect to crude glycerol, water and oxygen are 1.04, 0.54 and 1.78 respectively. The absolute average deviation of 5.84 % which showed a good correlation between the predicted and experimental rate. Afterwards, both power and mechanistic models were developed for steam reforming, total oxidation and CO2 Methanation. For steam reforming, Eley Rideal approach best described the rate with for the surface reaction step being the rate determining step (AAD