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Noemie van Garderen Frank J. Clemens Christos G. Aneziris Thomas Graule 《Ceramics International》2012,38(7):5481-5492
γ-Alumina extrudates for chemical-looping combustion in fluidized bed reactors were shaped by varying acetic acid concentrations between 0.07 and 3.76 M. Influence of pseudo-boehmite peptization on structural properties, microstructure, chemical phases and attrition resistance was determined. With addition of acetic acid, the d90 of boehmite agglomerates after 1 h kneading decreased from 134 to 40 μm at pH 4. Due to this, the extrusion diameter was reduced from 1500 to 200 μm, as well as median pore radii (from 30.1 to 5.3 nm). Porosity was about 70%. Addition of more than 1.87 M acid lead to a slight increase in mesopore sizes caused by some pore blocking caused by the formation of aluminium acetate salts. A small micropore surface was determined with t-layer model from Harkins and Jura. Higher attrition resistance was observed for samples peptized with lower acid concentration because of the closer contact between particles after decomposition. 相似文献
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Determination of oleanolic acid in human plasma and its association with olive oil intake in healthy Spanish adults within the EPIC Spain cohort study
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Genevieve Buckland Antoni Pastor Leila Lujan‐Barroso Carlos Alberto Gonzalez Noemie Travier Pilar Amiano José María Huerta Antonio Agudo Carmen Navarro María Dolores Chirlaque Maria‐José Sánchez Miguel Rodríguez‐Barranco Aurelio Barricarte Eva Ardanaz Miren Dorronsoro Amaia Molinuevo José Ramón Quirós Rafael de la Torre 《Molecular nutrition & food research》2017,61(8)
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