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Title: Devolatilization Behavior and Pyrolysis Kinetics of Rice Husk
Authors: Garba, M.U.
Musa, U
Mohammed, Alhassan
Isah, A. G
Mohammed, I. A
Gambo, S
Keywords: rice husk, pyrolysis, thermogravimetric analysis, kinetics, kas, kisinger
Issue Date: 6-Feb-2017
Publisher: proceedings Of The 2nd Africa International Renewable Energy Conference (Solar Africa 2017) Udu Sokoto- Nigeria
Abstract: This study presents the pyrolysis process of rice husk using a thermogravimetric analyzerin nitrogen atmosphere. The samples were heated over a range of temperature from 29 to 906 oc with three different heating rates of 10, 20 and 30 oc min-1. the results of thermal decomposition process show three main stages such as water removal, main devolatilization and continuous slight devolatilization. it isalso showed that as the heating rates increases from 10-30oc/min, maximum weight loss shifted to higher peak temperatures. the model free methods of kissinger akahira-sonuse (kas) and kissinger were applied to the experimental data, generating kinetic parameters such as activation energy and pre-exponential factor.the average activation energy and pre-exponential factor calculated from kas method are 73.64 kj/mol and 9.10×106 min-1, respectively while the activation energy and pre-exponential obtained for kissinger method are 67.12 and 2.54×105 kj mol-1, respectively. thetga kinetic results can be used for better understanding of the composition of the devolatilization process at different temperatures thereby providing data for effective design of a pilot plant which can be effectively scale up.
Description: Conference Proceeding
Appears in Collections:Chemical Engineering

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