Polycyclic aromatic hydrocarbons (PAHs) and soot formation in the pyrolysis of the butanol isomers

Viteri, F. ; Gracia, S. ; Millera, Á. (Universidad de Zaragoza) ; Bilbao, R. (Universidad de Zaragoza) ; Alzueta, M. U. (Universidad de Zaragoza)

Resumen: The formation of polycyclic aromatic hydrocarbons (PAHs) and soot from the pyrolysis of the four butanol isomers: 1-butanol, 2-butanol, iso-butanol and tert-butanol, at three reaction temperatures (1275, 1375 and 1475 K) has been studied. The identification and quantification of the sixteen PAHs, classified by the Environmental Protection Agency (EPA) as priority pollutants, were done using the gas chromatography–mass spectrometry (GC–MS) technique. The soot formed was collected at the reactor outlet. Light gases formed were also quantified. The harmful potential of the PAHs through the benzoa]pyrene equivalent, Ba]P-eq amount, has been evaluated. The main results show that the highest formation of light gases was obtained from the pyrolysis of iso-butanol at 1275 K. The formation of H2 increases significantly as the temperature increases, following the Hydrogen abstraction carbon addition (HACA) route that leads to form PAHs which subsequently form soot. The tendency to soot formation, under the experimental conditions of the present study, is ranked as follows: tert-butanol, 2-butanol, 1-butanol and iso-butanol. The highest PAHs amount and the highest toxic potential, expressed as Ba]P-eq amount, were found in the pyrolysis of all butanol isomers at 1275 K.

Idioma: Inglés

DOI: 10.1016/j.fuel.2017.02.026

Año: 2017

Publicado en: Fuel 197 (2017), 348-358
ISSN: 0016-2361

Factor impacto JCR: 4.908 (2017)

Categ. JCR: ENGINEERING, CHEMICAL rank: 13 / 137 = 0.095 (2017) - Q1 - T1
Categ. JCR: ENERGY & FUELS rank: 19 / 97 = 0.196 (2017) - Q1 - T1

Factor impacto SCIMAGO: 1.891 - Chemical Engineering (miscellaneous) (Q1) - Organic Chemistry (Q1) - Fuel Technology (Q1) - Energy Engineering and Power Technology (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/GPT
Financiación: info:eu-repo/grantAgreement/EC/H2020/654623/EU/Sustainable production of next generation biofuels from waste streams/WASTE2FUELS
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2015-65226

Tipo y forma: Artículo (PostPrint)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)
Área (Departamento): Área Tecnologi. Medio Ambiente (Dpto. Ing.Quím.Tecnol.Med.Amb.)