Molecular Simulation of Naphthenic Acid Removal on Acidic Catalyst II. Experimental results of catalytic decarboxylation over acidic catalysts

Theenergybarriersofthermaldecarboxylationreactionsofpetroleumacidsandcatalyticdecar-boxylationreactionsofBrnstedacidandLewisacidwereanalyzedusingmolecularsimulationtechnology.Comparedwiththermaldecarboxylationreactionsofpetroleumacids,thedecarboxylationreactionsbyacidcatalystswereeasiertooccur.ThedecarboxylatoneffectbyLewisacidwasbetterthanBrnstedacid.Themechanismsofcatalyticdecarboxylationoveracidcatalystwerealsoverifiedbyexperimentsonafixedbedandafluidizedbed,theexperimentalresultsshowedthattherateofacidremovalcouldreachupto97%overtheacidiccatalystatatemperatureabove400.