Activated carbon prepared by physical activation of olive stones for the removal of NO2 at ambient temperature

Development of a new model of olives de-stoner machine: Evaluation of electric consumption and kernel characterization

“…Literature reports on the uses of olive stone as an alternative to energy production such as activated carbon [22,23], an additive in cement lime mortar to improve thermal insulation [24] and an additive for resins [25].…”

The Potential of Activated Carbon Made of Agro-Industrial Residues in NOx Immissions Abatement

“…Figure 8 shows the measured downstream volumetric contents of NO during the experiments on the three activated carbons. At this step, it is important to mention that, in a previous study performed in similar conditions, we have shown that NO2 is reduced to NO but no N2 is produced during the contact between NO2 and the different activated carbons [10,11]. For AC-CO2 and AC-H2O, the measured volumetric concentration of NO regularly increases during the first half of the experiment, reaching up to the 20% of the supplied concentration of NO2 for AC-CO2 and AC-H2O.…”

“…The targeted temperature was maintained to 750 • C for 6 h. Further details about physical activation procedure could be found in a previous work [10].…”

“…One approach to counteract both problems is the development of an efficient sorbent for the separation of NO x from a locally available raw precursor; in this case, the agro-industrial residue olive stones have interesting potential for activated carbons preparation [22]. Ghouma et al [10] have prepared activated carbon based on olive stones by water vapor activation. The adsorption tests with 500 ppm NO 2 have shown that the prepared activated carbon has a capacity as high as the ones available in literature.…”

“…However, studies on activated carbons (AC) performance for NO x removal showed promising results in term of adsorption efficiencies [7][8][9][10][11][12]. Several lignocellulosic precursors were used for the preparation of activated carbons dedicated to the NO 2 removal at ambient temperature [7][8][9][10][11][12].…”