Hydroconversion of n -Heptaneover Bifunctional Pt–Ti–MSU/Al–Ti–MSU Catalysts in a Micro Reactor
2021
Cracking and isomerization of n-alkanes,
employing bifunctional catalysts, are vital reactions in various refinery
processes for producing different high-quality fuels. These catalysts consist of
a specific metal component and a specific acid function. The metal component is
used for dehydrogenation and hydrogenation constituted from a specific noble
metal such as palladium and platinum. The acid function, on the other hand, is
used for cracking and isomerization aims. In this work, a number of mesoporous
catalysts with different ratios of Si/Ti based on MSU containing Platinum were
synthesized and characterized with XRF, XRD, NH3–TPD, and
BET tests. These catalysts were applied in n-heptane hydroconversion process in a fixed bed microreactor to see
their performance in an actual process. In the microreactor, the pressure was
constant (atmospheric), and the temperature varies in the range of 250–600°C.
The performance of each of the catalysts was investigated in different ratios of
hydrogen to hydrocarbon (5, 10, 15, 20, and 25) and in two values of Weight Hour
Space Velocity (WHSV) (1.5 and 2.5 h–1). Products
analysis carried out to check out the activity and selectivity of each of the
catalysts. The result showed that all samples have a high surface area,
favorable pore distribution, and high acidity. The outcome of the study showed
that the CAT-D catalyst has the highest activity for normal heptane conversion.
This catalyst also has the highest selectivity for isomerization products at
moderate temperatures (350°C) and WHSV = 1.5
h–1.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
27
References
1
Citations
NaN
KQI