Effect of Pretreatment with Sulfuric Acid on Catalytic Hydrocracking of FeAC Catalysts

Abstract EN

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.