The method may also include using {HEAD ~ multiple successive extruded bodies}, optionally with different heat exchange feeds, and further optionally with varying reactant feeds for {TAIL ~ each} 
The method may also include using { HEAD ~ multiple successive extruded bodies } , optionally with different heat exchange feeds , and further optionally with varying reactant feeds for { TAIL ~ each }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL