4 documents found, page 1 of 1
An innovative approach to develop microporous activated carbons in oxidising at...
Suhas; Carrott, P. J. M.; Ribeiro Carrott, M. M. L.; Singh, R.; Singh, L. P.; Choudhary, M.The aim of the study was to investigate a rather oxidising atmosphere such as air for the development of a microporous activated carbon from demineralised kraft lignin. Demineralisation of lignin makes the precursor low in reactivity and hence can allow the use of more oxidising atmospheres. Control of the activation conditions allowed development of microporous activated carbons with type I N2 adsorption isoth...
An innovative approach to develop microporous activated carbons in oxidising at...
Suhas; Carrott, P. J. M.; Ribeiro Carrott, M. M. L.; Singh, R.; Singh, L. P.; Chaudhary, M.The aim of the study was to investigate a rather oxidising atmosphere such as air for the development of a microporous activated carbon from demineralised kraft lignin. Demineralisation of lignin makes the precursor low in reactivity and hence can allow the use of more oxidising atmospheres. Control of the activation conditions allowed development of microporous activated carbons with type I N2 adsorption isoth...
Methylcyclohexane transformation over HMCM22 zeolite: Mechanism and location of...
Matias, P.; Lopes, J. M.; Laforge, S.; Magnoux, P.; Russo, P. A.; Ribeiro Carrott, M. M. L.; Guisnet, M.; Ramôa Ribeiro, F.At 350 ◦C, over a HMWW zeolite (Si/Al = 14.5), methylcyclohexane (mch) transforms into four types of products: isomers (I), C1–C8 aliphatic hydrocarbons (C), benzenic hydrocarbons (A), and trapped carbonaceous compounds (coke). The role played by the various micropores was established through a two-step method: deactivation of supercages by coking and poisoning of the outer hemicage sites by 2,4-dimethylquinoli...
Adsorption of n-Pentane and iso-Octane for the Evaluation of the Porosity of De...
Ribeiro Carrott, M. M. L.; Russo, P. A.; Carvalhal, C.; Carrott, P. J. M.; Marques, J. P.; Lopes, J. M.; Gener, I.; Guisnet, M.; Ramôa Ribeiro, F.Adsorption of n-pentane and 2,2,4-trimethylpentane at 298 K was carried out in order to characterize the porosity of a series of HBEA dealuminated zeolites. The HBEA samples were prepared from a calcined parent sample by steaming, by treatment with hydrochloric acid and by treatment with ammonium hexafluorosilicate (HFS) solutions. The comparison of the adsorption results with those previously obtained by nitro...