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Título

Combustion and reforming of liquid fossil fuels through chemical looping processes: integration of chemical looping processes in a refinery

AutorGarcía Labiano, Francisco CSIC ORCID ; Diego Poza, Luis F. de CSIC ORCID ; García-Díez, Enrique CSIC; Serrano Oliván, Anabel CSIC; Abad Secades, Alberto CSIC ORCID ; Gayán Sanz, Pilar CSIC ORCID ; Adánez Elorza, Juan CSIC ORCID
Palabras claveChemical looping combustion
Chemical-looping reforming
Fossil fuels
Refinery
Hydrogen
Fecha de publicación18-ago-2017
EditorElsevier
CitaciónEnergy Procedia 114: 324-333 (2017)
ResumenOil refining processes demand and use vast quantities of energy and thus are responsible for the emission of a great deal of CO2. In addition, hydrogen is used in oil refineries for hydrodesulfurization and hydrocraking processes. In this sense, the integration of Chemical Looping technology in an oil refinery using vacuum residues as fuel could drive to significant reductions in CO2 emissions. In this work, Chemical Looping Combustion (CLC) and Chemical Looping Reforming (CLR) experiments have been carried out in a continuously operated 1 kWth unit using a Cu- and Ni-based oxygen carrier, respectively. Diesel, synthetic and mineral lubricant oil were used as fuels as a previous step to the use of low grade residues. Regarding Chemical Looping Combustion conditions, almost 100% of combustion efficiency and full carbon capture were obtained at low oxygen carrier-to-fuel molar ratios (ϕ≥1.6). Regarding Chemical Looping Reforming conditions, a syngas containing a H2 concentration over 50 vol.% in dry basis was obtained with the additional advantage of reaching 100% CO2 capture efficiency in the process. In all cases, syngas composition obtained was close to the given by the thermodynamic equilibrium. These results provide a basis for concluding that the integration of Chemical Looping processes for heat/steam and hydrogen production in an oil refinery is feasible and could lead to significant environmental advantages.
Descripción8 Figures, 2 Tables.-- Work presented at the 13th International Conference on Greenhouse Gas Control Technologies, GHGT-13, 14-18 November 2016, Lausanne, Switzerland.
Versión del editorhttps://doi.org/10.1016/j.egypro.2017.03.1174
URIhttp://hdl.handle.net/10261/159943
DOI10.1016/j.egypro.2017.03.1174
ISSN1876-6102
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