Comparison of devotilization rates of Philippine coal under pyrolytic conditions
Date of Publication
1997
Document Type
Master's Thesis
Degree Name
Master of Science in Chemical Engineering
Subject Categories
Chemical Engineering
College
Gokongwei College of Engineering
Department/Unit
Chemical Engineering
Thesis Adviser
Dr. Susan A. Roces
Defense Panel Chair
Alma Bella P. Madrazo
Defense Panel Member
Dr. Carlito M. Salazar
Dr. Alvin Culaba
Abstract/Summary
The effects of coal rank or type, temperature, residence time and reactor type on the devolatilization of Philippine coal samples was investigated and analyzed. Pyrolysis of the coal samples was conducted up to 700 degrees Centigrade using the Closed-Type Thermobalance Reactor and thermogravimetric Analyzer. Results indicated that Cagayan coal showed the highest weight loss followed by Samar coal then Surigao coal and Zamboanga coal, the lowest. This behavior is consistent at all hold temperatures. Faster rate of devolatilization was observed between 0 to 15 minutes at hold temperatures at 500, 600 and 700 degrees Centigrade for all coal samples studied except Zamboanga coal. Also, an increase in volatilization rate occurred when the hold temperature was increased. Further, the Thermogravimetric Analyzer experimental results showed significantly higher weight losses and yield of char than those obtained using the Closed-Type Thermobalance Reactor.
Abstract Format
html
Language
English
Format
Accession Number
TG02692
Shelf Location
Archives, The Learning Commons, 12F Henry Sy Sr. Hall
Physical Description
63 numb. leaves
Keywords
Coal -- Thermal properties; Pyrolysis; Thermogravimetry; Chemistry; Analytic -- Quantitative; Gravimetric analysis
Recommended Citation
Dugos, N. P. (1997). Comparison of devotilization rates of Philippine coal under pyrolytic conditions. Retrieved from https://animorepository.dlsu.edu.ph/etd_masteral/1854
