Abstract��
Kaolin treated by NaOH and HCl solution respectively was tested by pyridine-TPD and activity of catalytic cracking.The effects of acid type and surface acidity on cracking and desulphurization activity of the treated Kaolin were studied.It was shown that the alkali-modified Kaolin was better than acid-modified Kaolin in respect of yield of gasoline and desulphurization,the acid site distribution on the surface was the main effect on desulphurization through the pyridine-TPD test.The effect of n(SiO_2)/n(Al_2O_3) of the alkali-modified Kaolin on the yield of gasoline and desulphurization was analyzed.It is important to reduce sulfur content of gasoline and to decrease environmental pollution.
SONG Chun-ying,MA Zhi,QIN Yong-ning,ZHAO Chen.Application of Kaolin in Catalytic Cracking Desulphurization[J]. Chemcial Industry and Engineering, 2009,26(1): 28-31
2009, Vol. 26 
