Chol Ryong JANG, Vasile MATEI, Viorel VOICU, Anca BORCEA, Dragos CIUPARU<br>Hydrodesulfurization of FCC Gasoline over Ni-Mo Catalyst supported on MCM-41

Chol Ryong JANG, Vasile MATEI, Viorel VOICU, Anca BORCEA, Dragos CIUPARU
Hydrodesulfurization of FCC Gasoline over Ni-Mo Catalyst supported on MCM-41

Abstract:

The applicability of MCM-41 as support for Ni-Mo hydrotreating catalysts of fluid catalytic cracking (FCC) gasoline was tested in a fixed bed reactor under operating parameters similar with the industrial ones. The pure MCM-41 synthesized using a C16 surfactant following the classical mesoporous silica preparation steps, has high specific surface area and uniform pore diameter. X ray diffraction (XRD) patterns of the MCM-41 supported catalysts show good dispersion of the catalytically active components, NiO and MoO3. This good dispersion suggests that MCM-41 can be used for the preparation of supported catalysts with high surface area and high dispersion. Ni-Mo/MCM-41 catalysts showed good activities for HDS and hydrogenation reactions. Increasing the NiO content of the catalyst, higher conversions of thiophene and 1-octene were observed at the same temperature. For hydrofining of FCC gasoline, the HDS activity of the Ni-Mo/MCM-41 catalyst at 350oC, 2.5 MPa, LHSV of 6 h-1 and H2 flow rate of 1 L/min is significantly higher than that of the commercial Ni-Mo/g-Al2O3 catalyst under the same operating conditions. The MCM-41 supported catalyst led to some loss in the octane number of the processed gasoline at temperatures higher than 350oC. Keywords: MCM-41, Ni-Mo/MCM-41 catalyst, XRD, FTIR, hydrotreating, FCC gasoline, HDS

Issue: 2014, Volume 65, Issue 12

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