Effect of pretreatment with sulfuric acid on catalytic hydrocracking of Fe/AC catalysts

Activated carbon (ac) was modified by h2so4 and used as a support for catalyst. the fe2s3/ac-t catalyst was prepared by deposition-precipitation method and used to catalyze hydrocracking of coal-related model compound,di(1-naphthyl)methane (dnm). the properties of catalyst were studied by n2 adsorption-desorption,x-ray diffraction,and scanning electron microscopy. the result showed that ferric sulfate and acidic centers had synergetic effect on hydrocracking of dnm when using fe2s3/ac-t as catalyst,the optimal loading of fe is 9 wt.%. hydroconversion of the extraction residue from guizhou bituminous coal was also studied using fe2s3/ac-t as the catalyst. the reaction was conducted in cyclohexane under 0.8 mpa of initial hydrogen pressure at 310°c. the reaction mixture was extracted with petroleum ether and analyzed by gc/ms. amounts of organic compounds which fall into the categories of homologues of benzene and naphthalene were detected. it suggested that the catalyst could effectively catalyze the cleavage of c-c-bridged bonds. © 2017 ruiyu wang et al.