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Pyrolysis kinetics of biomass

Pyrolysis kinetics of biomass / Muhammad Imran Afifi Mohd Mahzan
Objektif kerja ini adalah untuk menilai kinetik kimia biojisim yang digunakan iaitu hampas tebu dengan parameter kadar pemanasan dan kepekatan bahan kimia yang berlainan. Bahan tambahan kimia yang digunakan untuk eksperimen ini adalah asid fosforik kerana ia merupakan salah satu ejen dehidrasi terbaik untuk membuang kandungan lembapan biojisim. Proses pirolisis dilakukan dengan menggunakan Penganalisa Gravimetritermal (TGA-7) sehingga suhu maksimum 750 ° C. Hampas tebu mengalami tiga langkah penurunan berat. Penguraian hemiselulosa, selulosa dan lignin adalah tiga langkah penurunan berat untuk biojisim yang digunakan. Perubahan dalam keadaan operasi (kadar pemanasan) memberikan sedikit kesan terhadap kinetik proses dan juga tiga langkah penurunan berat bahan. Untuk penambahan bahan kimia tambahan, dapat disimpulkan bahawa dengan enap jerap biojisim dengan bahan tambahan kimia tersebut memberikan kesan yang signifikan terhadap kinetik biojisim. _______________________________________________________________________________________________________ The objective of this work was to evaluate the chemical kinetics of the biomass used which was sugarcane bagasse with parameters namely heating rates and chemical additives concentration. The chemical additive used for this experiment was phosphoric acid as it one of the best dehydrating agent to remove moisture content of the biomass. The pyrolysis process was carried out using a Thermal Gravimetric Analyzer (TGA-7) until a maximum temperature of 750°C. Sugarcane bagasse experienced three steps of weight loss. The decomposition of hemicellulose, cellulose and lignin are the three steps of weight loss for the biomass used. A change in the operational condition (heating rate) gives very little impact of the kinetics of the process and also the three steps weight loss. For the addition of chemical additives, it can be concluded that by impregnating the biomass with the mentioned chemical additives gives significant impact on the kinetics of the biomass.
Contributor(s):
Muhammad Imran Afifi Mohd Mahzan - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875007538
Language:
English
Subject Keywords:
chemical kinetics; biomass; sugarcane bagasse
First presented to the public:
6/1/2018
Original Publication Date:
7/18/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 54
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-07-31 15:42:19.57
Date Last Updated
2019-01-07 11:24:32.9118
Submitter:
Mohd Jasnizam Mohd Salleh

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