Anonymous
it is depend how mush regenerated cat, slide valve how much passing if slightly passing and the valve are free not got stuck you can start normally during start up the reactor press. is higher than reg, so it will be passing steam only and while loading catalyst it will be stand pipe sealed then you can heat up the reactor via that passing and you can maintian temp. by torch oil flow rate remmber i told if slightly passing by my practice when temperature increase the slide valve may be you can close it i mean passing will stop may some coke around the slide valve guide or grove try to strok it when reg. temp.above 500c by opening and closing fast or try by handwheel
best regards
salam