2010
DOI: 10.1016/j.cattod.2009.09.010
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Dependence of chemical composition of calcined hydrotalcite-like compounds for SOx reduction

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Cited by 41 publications
(16 citation statements)
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“…It was reported before that the interlayer distance is also affected by the introduction of copper [18,19]. Basal spacing depends on the interlayer water content, the amount, size, orientation, and charge of the anion located between the brucite-like layers [17]. The values obtained in the study of about 2.3 nm are typical for hydrotalcites containing carbonate as the interlayer anion; however, parameter c increases for small Cu-concentrations (Mg 2 Cu 0.5 Fe 1 ).…”
Section: Resultsmentioning
confidence: 99%
“…It was reported before that the interlayer distance is also affected by the introduction of copper [18,19]. Basal spacing depends on the interlayer water content, the amount, size, orientation, and charge of the anion located between the brucite-like layers [17]. The values obtained in the study of about 2.3 nm are typical for hydrotalcites containing carbonate as the interlayer anion; however, parameter c increases for small Cu-concentrations (Mg 2 Cu 0.5 Fe 1 ).…”
Section: Resultsmentioning
confidence: 99%
“…Pasado el tiempo de exposición a la radiación microonda, el gel resultante se dejó enfriar para filtrar, lavar y secar el sólido obtenido. El horno microondas utilizado fue de tipo doméstico modelo The Genius Sensor 1250 W marca Panasonic; el equipo no permite tener un registro y control de la temperatura durante la digestión; sin embargo, se fijó la potencia de funcionamiento del horno en el primer nivel que equivale a 125 W. La síntesis de las hidrotalcitas Ni-Fe se desarrolla según lo establecido para el método por coprecipitación [11][12][13]. En el método por radiación de microondas se revisaron algunas investigaciones [2,[13][14][15][16]] para establecer las condiciones de síntesis.…”
Section: Parte Experimentalunclassified
“…Meanwhile, the scientific community is actively exploring different approaches to minimise SO x emission. [2][3][4] The strategies are varied, depending on the emission source. SO x are mostly produced by combustion of sulphur-containing fossil fuels.…”
Section: Introductionmentioning
confidence: 99%
“…Given the complexity of the FCC process, SO x removal catalysts must possess an extensive set of characteristics. The main catalytic requirements are: 3,4,18,19 i) promote the oxidation of SO 2 to SO 3 in the regenerator; ii) chemisorb SO 3 to produce a metallic sulphate that remains stable at the conditions prevailing in the regenerator, iii) the metallic sulphate must be readily transformed to the corresponding metallic sulphide at the reductive conditions (H 2 /hydrocarbons atmosphere) of the riser, and iv) the metallic sulphide should then be hydrolyzed, by steam injected to the stripper, to restore the original metal oxide catalyst and produce H 2 S (Scheme 1). 20 Additionally, the catalyst must not modify significantly the feed conversion nor the products distribution.…”
Section: Introductionmentioning
confidence: 99%