Preparation and adsorption denitrogenation from model fuel or diesel oil of heteroatoms mesoporous molecular sieve Co-MCM-41

ABSTRACT

The MCM-41 and Co-MCM-41 molecular sieves were confirmed by characterization with XRD, FTIR, nitrogen adsorption, and NH₃-TPD. Denitrogenation of model fuel containing about 1,737.35 μg (nitrogen)/g or diesel oil was studied over the samples. The molecular size of quinoline, calculated by using density functional theory, was 7.116 × 5.002 Å, implying that it easy access to mesoscale pores of molecular sieves. The adsorption denitrogenation capacity of Co-MCM-41 was clearly more effective than MCM-41 due to its strong acidity and chemisorption. The basic nitrogen removal of diesel oil on MCM-41 or Co-MCM-41 was 68.22 and 65.91%, respectively.

KEYWORDS:

• Characterization
• Co-MCM-41
• denitrogenation
• density functional theory
• molecular sieve

Acknowledgment

We are grateful to professor SONG Lijuan who works in the Key Laboratory of Petrochemical Catalytic Science and Technology for the geometry optimization of quinoline.

Funding

This study was supported by the Liaoning Provincial Natural Science Foundation of China (2014020113).

Additional information

Funding

This study was supported by the Liaoning Provincial Natural Science Foundation of China (2014020113).