Gas and soot formed in the dimethoxymethane pyrolysis. Soot characterization

Alexandrino De Freitas, Katiuska Ferbel (Universidad de Zaragoza) ; Millera Peralta, Ángela (Universidad de Zaragoza) ; Bilbao Duñabeitia, Rafael (Universidad de Zaragoza) ; Alzueta Anía, María Ujué (Universidad de Zaragoza)

Resumen: The many simultaneous processes occurring within in a diesel engine make difficult a thorough understanding of the mechanisms responsible for reduction of soot and/or NOX when an oxygenated compound is added to diesel fuel. Thus, in order to explore the use of oxygenated compounds as biofuels/additives, it is interesting to study their conversion under well-controlled laboratory conditions, together with kinetic studies that help to interpret and understand the reaction schemes that occur during such processes. The aim of this work has been to contribute to the knowledge of the dimethoxymethane (DMM) pyrolysis, one of the oxygenated compounds proposed in literature as alternative fuel. In this way, the influence of pyrolysis temperature (1075–1475¿K) and inlet fuel concentration (33,333 and 50,000¿ppm DMM) on the sooting propensity of DMM, soot reactivity and its properties is analyzed. Therefore, this work includes pyrolysis experiments under different experimental conditions, focusing on the gas-phase analysis and the soot formation, together with a gas-phase model. Additionally, the interaction of soot with O2 and with NO has been studied, and since soot properties are important on the oxidation rate, selected soot samples have been characterized by different instrumental techniques (elemental analysis, physical adsorption with N2, Transmission Electron Microscopy (TEM), X-Ray Diffraction (XRD), and Raman spectroscopy).

Idioma: Inglés

DOI: 10.1016/j.fuproc.2018.07.021

Año: 2018

Publicado en: Fuel Processing Technology 179 (2018), 369-377
ISSN: 0378-3820

Factor impacto JCR: 4.507 (2018)

Categ. JCR: CHEMISTRY, APPLIED rank: 11 / 71 = 0.155 (2018) - Q1 - T1
Categ. JCR: ENGINEERING, CHEMICAL rank: 19 / 138 = 0.138 (2018) - Q1 - T1
Categ. JCR: ENERGY & FUELS rank: 27 / 103 = 0.262 (2018) - Q2 - T1

Factor impacto SCIMAGO: 1.415 - Chemical Engineering (miscellaneous) (Q1) - Fuel Technology (Q1) - Energy Engineering and Power Technology (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/GPT
Financiación: info:eu-repo/grantAgreement/ES/MINECO/BES-2013-063049
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.)