Abstract
Unlike plastic, biomass can also be converted and produce high quality of biofuel. Co-pyrolysis of coconut husk (CH) and laminated plastic packaging (LPP) were done in this study. Synergy between these two feedstock was calculated by using thermogravimetric (TGA) and derivative thermogravimetry (DTG) analysis. Different activation energies of the reactions in the co-pyrolysis of CH and LPP were evaluated using the Coats-Redfern method. Results showed an activation energy ranging from 8 to 37 kJ/mol in the different percentage composition of the co-pyrolysis. Also, thermal degradation happens in two-stages in the copyrolysis of CH and LPP, in which CH degrades at the temperature range of 210◦C to 390◦C while LPP degrades in temperatures 400◦C–600◦C. Co-pyrolysis of CH and LPP can be an alternative for biofuel production and can also reduce the waste problems in the community
Highlights
Utilizing different sources of waste biomass for possible production of biofuel were studied by different researchers worldwide due to depletion of commonly used of petroleum fuels especially in the transportation sector which comprise the largest portion of the fuel consumption, but the produced fuel yield and its quality were generally low [1,2]
This study focused primarily in the determination of the possible effects of the set temperatures to the percentage composition of the coconut husk and laminated plastic packaging in the output rate synergy by using Coats-Redfern method for which was used in the thermal degradation of biomass and some mixtures of coal [12]
The rate synergy ( ) is defined as the difference between the weight loss rate (R) from the thermogravimetric analysis (TGA) of the coconut husk (CH) and laminated plastic packaging (LPP) (Rmixture) and the sum of the weight loss rates from the individual pyrolysis of the CH (RCH) and plastic (RLPP) each multiplied by their respective weight fractions in the mixture shown in Eq (2) [14]
Summary
Utilizing different sources of waste biomass for possible production of biofuel were studied by different researchers worldwide due to depletion of commonly used of petroleum fuels especially in the transportation sector which comprise the largest portion of the fuel consumption, but the produced fuel yield and its quality were generally low [1,2]. Copyrolysis with plastics were used to enhance yield and quality of biomass in which temperature and percentage composition of feedstock can directly influence the outcome of the process [4]. Temperatures from 400–600◦C in the co-pyrolysis process will produce high percentage and additional oil yields by giving details on the possible interactions via synergy in between the type of feedstock being used [5–7]. Co-pyrolysis between different waste biomass and waste plastics focused primarily with production of percentage oil yield, but not in terms of how the feedstock interact by way of synergy analysis. This study focused primarily in the determination of the possible effects of the set temperatures to the percentage composition of the coconut husk and laminated plastic packaging in the output rate synergy by using Coats-Redfern method for which was used in the thermal degradation of biomass and some mixtures of coal [12]
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