Akademik Veri Yönetim Sistemi
Energy Sources, Part A: Recovery, Utilization and Environmental Effects, cilt.33, sa.16, ss.1504-1513, 2011 (SCI-Expanded)
The characterization of apricot pulp char obtained from steam pyrolysis was studied. The char was prepared by pyrolyzing apricot pulp temperatures ranging from 300 to 700° C under steam atmospheres. The chemical composition of char was characterized by Fourier transform infrared spectroscopy. The surface area of the char was measured with the Brunauer-Emmett-Teller method, and surface morphology was obtained with scanning electron microscopy. The char yield in pyrolysis decreased rapidly with an increase in temperature from 39.1% at 300° C to 18.9% at 550° C. The surface area of the char increased with temperature to a maximum of 332 m2/g at 550° C. Scanning electron microscopy analysis indicated that the pyrolysis led to the formation of melt, liquid phase, vesicles, precipitates of inorganic salts, and surface etching. Fourier transform infrared spectroscopy studies showed a gradual decrease in the amounts of OH and CH3 with increasing temperature. Both the H/C and O/C ratios of the char decreased with an increase in temperature. Copyright © Taylor & Francis Group, LLC.