Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10547551 | Journal of Analytical and Applied Pyrolysis | 2005 | 13 Pages |
Abstract
Co-processing of petroleum vacuum residue (BVR) with plastics (polypropylene, bakelite), coal (Samla coal), and biomass (bagasse, Calotropis procera) was carried out in a thermogravimetric analyzer (TGA) reaction system in nitrogen atmosphere with a view to comparing the process of the mixture with those of the individual components. Experiments were conducted at heating rate of 40 °C/min, in the temperature range of 30-900 °C. Based on the results obtained, three temperature regimes were selected for studying the non-isothermal kinetics of TGA of individual BVR, plastics, coal, biomass as well as of the co-processing of these with BVR, i.e., below 400 °C, between 400 and 500 °C and above 500 °C. The kinetic studies were performed using Coats and Redfern kinetic-modeling equations. The overall activation energies were 60.83 kJ/mole for petroleum residue, 99.41 kJ/mole for polypropylene, 21.08 kJ/mole for coal, 22.68 kJ/mole for C. procera and 31.9 kJ/mole for the mixture of these four materials. Thus, it has been found that there exists an overall synergy, when four materials were co-processed together. The overall orders and activation energies change during co-processing of two, three or four different macromolecules including petroleum residue as observed presently. The results obtained are being reported.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
M. Ahmaruzzaman, D.K. Sharma,