The catalyst carrier 15, wherein {HEAD ~ the outermost peripheral cell wall} has a thickness in a range of approximately 0.25 mm through {TAIL ~ approximately 0.50 mm} 
The catalyst carrier 15 , wherein { HEAD ~ the outermost peripheral cell wall } has a thickness in a range of approximately 0.25 mm through { TAIL ~ approximately 0.50 mm }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL