Premium
Management of printed circuit boards by newly designed thermal pyrolytic process: Process optimization by RSM approach
Author(s) -
Jayapradha A.,
AbbasMohaideen J.,
Senthil Kumar P.,
Kavitha V.,
Narendrakumar G.
Publication year - 2018
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.13002
Subject(s) - pyrolytic carbon , char , yield (engineering) , liquefaction , heat of combustion , endothermic process , materials science , process (computing) , chemical engineering , process engineering , chemistry , pyrolysis , engineering , composite material , computer science , organic chemistry , adsorption , combustion , operating system
The present research focuses on evaluating the kinetics for the liquefaction process and optimizing the process variable using Design expert software to maximize oil yield and by suppressing by‐products like gas and char. Optimum conditions for the maximum yield of oil (25.04%) was calculated as375°C, 45 min retention time, 3–5 mm particle size and at a constant heating rate of 15 °C min −1 . Coats Redfern's approach showed maximum R 2 of 0.9459 which requires less activation energy of 61.44 kJ kg −1 mol −1 . The endothermic heat required for liquefaction was 20.91 MJ kg −1 . The calorific value of oil was measured as 6.502 MJ kg −1 . © 2018 American Institute of Chemical Engineers Environ Prog, 38: 489–499, 2019