These results indicate that there is an optimum addition
amount for each pore-forming agent in the extruded catalyst. For
CaO/Al2O3(polya, 3), CaO/Al2O3(actc, 5), and CaO/Al2O3(polyg, 1)
catalysts, the GL conversion can reach 95.39%, 86.88%, and
97.37%, respectively.