It is further contemplated that {TAIL ~ the zeolite Y catalyst} may be modified with cerium in the same manner as the modification of {HEAD ~ zeolite beta} 
It is further contemplated that { TAIL ~ the zeolite Y catalyst } may be modified with cerium in the same manner as the modification of { HEAD ~ zeolite beta }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD