What will happen to HZSM-5 if excess sodium ion introduced? Will the HZSM-5 be completely deactivated during the reaction of CO2 hydrogenation to DME, because the acid sites were blocked or replaced?
If an excess of sodium ion is introduced into HZSM-5, you will obtain a modified catalyst, ie, a basic catalyst and in this case it will not be used for your reaction of hydrogenation of CO2 in DME .