1. Lippe, Dan (2014), “2013 ethylene output rises; growth to continue in early 2014”,
Oi and Gas Journal, March.
2. Worrell, Ernst, Dian Phylipsen, Dan Einstein, and Nathan Martin (2000) “Energy Use and
Energy Intensity of the U.S. Chemical Industry”.
3. Barnett, Dan (2015) consultancy correspondence, BD Energy Systems, LLC.
4. Konijn, Martin (2015), consultancy correspondence, EPS / Triple EEE.
5. Caronno, Giampiero (2005), “Fired Heaters – Enhancing Refinery Profitability”,
5th Russia & CIS Refining Technology Conference.
6. Antonas, Ioannis (2013), consultancy correspondence, VITCOM Engineering.
7. Taler, Jan, Marcin Trojan M & Dawid Taler (2009), “Assessment of ash fouling and
slagging in coal fired utility boilers”, Eurotherm Conf. On Heat Exchanger Fouling and Cleaning VIII, pp103-112.
8. Ibrahim, Hassan Al-Haj and Mourhaf Al-Qassimi (2010), “Simulation of heat transfer in
the convection section of fired process heaters”, Chemical Engineering, 54/1, pp.33-40.
9. Awad, Mostafa M. (2011), “Fouling of Heat Transfer Surfaces”,
Heat Transfer – Theoretical Analysis, Experimental Investigations and Industrial Systems, pp505-542.