Please cite this article as: Juan A. ConesaJulia MoltóJosé ArizaMaría ArizaAgustín García-Barneto Study of the thermal decomposition of petrochemical sludge in a pilot plant reactor (2014), http://dx.doi. org/10.1016/j.jaap.2014.02.009 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.
Page 1 of 18A c c e p t e d M a n u s c r i p t
HIGHLIGHTS• Pyrolysis of oil refinery sludge has been studied in a pilot plant reactor.• Temperatures in the range 350-530 ºC were used in a nitrogen atmosphere.• Gas, liquid and char fractions were characterized.• An increase of liquid fraction is observed when increasing the temperature.• Light hydrocarbon yields increase with temperature.
Page 2 of 18A c c e p t e d M a n u s c r i p t 2 Prepared for submission to J. Anal. Appl. Pyrol.
STUDY OF THE THERMAL DECOMPOSITION OF PETROCHEMICAL SLUDGE IN A PILOT PLANT REACTOR
ABSTRACTThe pyrolysis of a sludge produced in the waste water treatment plant of an oil refinery was studied in a pilot plant reactor provided with a system for condensation of semivolatile matter. The study comprises experiments at 350, 400, 470 and 530 ºC in nitrogen atmosphere. Analysis of all the products obtained (gases, liquids and chars) are presented, with a thermogravimetric study of the char produced and analysis of main components of the liquid. In the temperature range studied, the composition of the gas fraction does not appreciably vary. In the liquids, the light hidrocarbon yield increases with increasing temperature, whereas the aromatic compounds diminish. The decomposition of the solid fraction has been analysed, finding a material that reacts rapidly with oxygen regardless of the conditions it is formed.