Synthesis And Characterization Of CoMo/Mordenite Catalyst For Hydrotreatment Of Lignin Compound Models

Abstract

The 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.

Hydrocracking Rubber Seeds Oil for Biofuel Production Using Bifunctional Sarulla‐Derived Natural Zeolite–Ni and Ni–Mo/SNZ Catalyst

“…[14] In light of this, Subsadsana et al elucidated that the amalgamation of metals conferred bifunctional attributes to the catalyst, facilitating multifarious reactions and consequently, amplifying hydrocarbon production. [15,16] Complementarily, Kumar et al evinced that CuNi/zeolite catalysts outperformed their monometallic counterparts, attributing their efficiency to elevated acidity levels that fostered active deoxygenation sites. [17] An ancillary study by Sihombing et al explored hydrocracking of rubber seed oil using a Sarulla natural zeolite (SNZ) catalyst loaded with Co and Co-Mo metals, yielding a gas product fraction of 64 wt% at 500 °C and a laudable 83 wt% gasoline selectivity.…”

Influence of Natural Mordenite Activation Mode on Its Efficiency as Support of Nickel Catalysts for Biodiesel Upgrading to Renewable Diesel

“…The exploitation of abundant minerals as catalytic supports is of great importance from both economic and environmental points of view. Natural mordenite could be a very promising mineral, as it is characterized by rather large micropores (~7 Å), enhanced thermal stability up to 900 °C and a texture that makes it suitable as a catalyst [ 16 , 17 , 18 ] or a catalytic support [ 5 , 19 , 20 , 21 ]. The main channels of mordenite are connected by tortuous pores that are too small, which are not accessible for the most organic molecules, resulting in mass transport limitations and rapid deactivation.…”