ON THE WAY TO IMPROVE CETANE NUMBER IN DIESEL FUELS: RING OPENING OF DECALIN OVER IR-MODIFIED EMBEDDED MESOPOROUS MATERIALS

Embedded materials prepared from MCM-41 together with BE or TON
were synthesized, characterized and tested in the ring opening of decalin in a temperature range of 523–623 K. The characterization results revealed that both microporous and mesoporous phases were present in the catalyst. Ir-modification did not change the phase purity, affecting, however, the acidity due to metalsupport interactions. The parameters studied in ring opening of decalin were support structure, presence of Ir and temperature. The detailed analysis of 2D/3D isomers and ring opening products showed that the main ring opening products contained ethyl side chain. The Ir-modified embedded mesoporous catalysts were active and relatively selective in the ring opening of decalin, giving 35 % selectivity to the ring opening products at 98 % conversion at 573 K and 6 MPa.

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