Abstract
AbstractThe synthesis of CoMo/Mordenite (CoMo/MOR) catalysts was conducted using a co-impregnation method at a various Co/Mo ratios. The produced catalysts were then characterized by X-ray diffraction, total acidity analysis, and scanning electron microscopy. The activity of the catalyst in a hydrotreatment reaction was evaluated by applying the catalyst as a reduced-catalyst to the hydrocracking (HC) reaction of anisole molecules. Analysis of the diffraction data using the Le Bail refinement technique showed that the metal phase was successfully impregnated into the MOR. In addition, increasing the metal content resulted in an increase in the acidity of the catalysts and changed the morphology of the catalysts from homogeneous to heterogeneous with larger particle size. According to the data of GCMS, it is known that the catalysts successfully removed methyl group of anisole molecules. Hydrotreatment reaction with the prepared-catalyst produced 4.77% of phenols. It is 122 % higher than the reaction with MOR catalyst.
Highlights
Hydrotreatment is a reaction of various hydrogenation processes, such as a reaction to change double/triple bonds into saturated hydrocarbons, a reaction to convert heavyTransition metals can be used as catalysts in both mono-metal and bimetal form
Many porous materials have been widely utilized as catalyst supports such as γ-alumina [6, 7], activated carbon [8], natural zeolites [9,10,11], ZSM-5 [12,13,14,15], and MOR [10, 14, 16, 17]
The results show that MOR was successfully modified with Co and Mo metals which is shown by the increase of the Co and Mo metal content in the CoMo / MOR catalyst
Summary
Hydrotreatment is a reaction of various hydrogenation processes, such as a reaction to change double/triple bonds into saturated hydrocarbons, a reaction to convert heavyTransition metals can be used as catalysts in both mono-metal and bimetal form. The catalytic properties of metals can be developed by the use of supported catalyst. Many porous materials have been widely utilized as catalyst supports such as γ-alumina [6, 7], activated carbon [8], natural zeolites [9,10,11], ZSM-5 [12,13,14,15], and MOR [10, 14, 16, 17]. MOR has quite large pores (± 7Å), high thermal stability and has cavities and channels that make it suitable as an adsorbent, ion-exchange medium and a catalyst [18]. The high thermal stability of MOR is shown by its ability to maintain its structure to a temperature of 800-900°C [18]
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