Fluid Catalytic Cracking Diesel Research Articles

Construction of hierarchical porous carbons with Ph-POSS based polymers for highly efficient adsorption of polycyclic aromatic hydrocarbons

Fluid catalytic cracking (FCC) diesel provides most polycyclic aromatic hydrocarbons (PAHs) in diesel. The removal of PAHs by adsorption and separation method is an efficient way to obtained purified diesel. As a kind of green economy adsorbent, porous carbon materials (PCMs) have been widely used in the adsorption of gases, aromatics and organic pollutions. Here, by direct carbonization, the PCMs are prepared from the novel Ph-POSS based porous organic polymers (POPs) which possessed high BET surface areas (∼1000 m2/g). The PCMs possess abundant microporosity and O atoms in the skeleton. The PCMs exhibit high PAHs adsorption capacity because of the hierarchical micropore size, high degree of graphitization and abundant O atoms. The strategy of construction PCMs with hierarchical micropore and heteroatoms provides an effective method to remove PAHs in the FCC diesel.

Investigation of Ionic Liquids as Extraction Solvents for Separating Bicyclic Aromatic S/N-Compounds from FCC Diesel

To improve the quality of fluid catalytic cracking (FCC) diesel, ionic liquids (ILs) were used as promising neoteric solvents to extract bicyclic S/N-compounds (quinoline and 1-benzothiophene) from FCC model oil. In addition to the thermodynamic properties, including solvent capacity and selectivity, physical properties such as viscosity and thermal stability are also considered as important factors in the IL screening process. 1-Ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C2MIM][NTF2]) was selected as the most suitable extraction solvent by the COSMO-RS model, and the accuracy of this model was verified based on the collected experimental data. Liquid–liquid equilibrium experiments were performed to study the effects of the initial quinoline and 1-benzothiophene concentrations, mass solvent ratio, extraction stages, and the presence of other aromatics on the extraction efficiency. Then, the extraction mechanism and the differences in the extraction effects for the quinoline and 1-benzothiophene systems were explored by quantum chemical calculation and molecular dynamics simulation. The consistency between experiments and theoretical calculation indicates that the electrostatic interaction is the main reason for the difference in the extraction efficiency between the quinoline and 1-benzothiophene systems.

Solvents evaluation for extraction of polycyclic aromatics from FCC diesel: Experimental and computational thermodynamics

The high content of aromatics in fluid catalytic cracking (FCC) diesel, especially bicyclic aromatics, seriously hindered the quality upgrading of FCC diesel. Liquid-Liquid extraction is an effectively method to reduce the content of aromatics in FCC diesel and improve oil quality. In this work, [EMIM][NTF2] (1-Ethyl-3-methylimidazolium Bis(trifluoromethylsulfony)imide) was selected as the most appropriate extractant from 44 ILs candidates, the common organic solvents (i.e., sulfolane (SUF), 1-Methyl-2-pyrrolidinone (NMP)) and [EMIM][NTF2] were used to separate 1-Methylnaphthalene from the model oil of 1-Tetradecene + n-Hexadecane + 1-Methylnaphthalene mixtures. The quaternary liquid–liquid equilibrium experiment was carried out at 303.15 K, and the results indicate that IL [EMIM][NTF2] show the higher selectivity than the common solvents. After recycling for 6 times, the extraction efficiency of [EMIM][NTF2] has hardly decreased. Quantum chemical (QC) calculation were performed to study the interaction mechanism between three different extractants and mixtures at the molecular level. Molecular polarity index (MPI) analysis indicated that 1-Methylnaphthalene was more soluble in extractants because its MPI values was closer to that of the extractants. The common results of energy decomposed, independent gradient model and atoms in molecules analysis showed that the interaction energy between 1-Methylnaphthalene and extractants is dominated by weak hydrogen bond and dispersion (e.g., van der Waals). Compared to aliphatic hydrocarbons (i.e. 1-Hetradecene and n-Texadecane), the interaction energy between extractants and 1-Methylnaphthalene systems are larger because of the existence of C-H⋅⋅⋅π and hydrogen bond interaction.

Extraction of polycyclic aromatic hydrocarbons from fluid catalytic cracking diesel with ionic liquids

AbstractIonic liquids (ILs) as promising green solvents were first proposed to extract polycyclic aromatic hydrocarbons (PAHs) from fluid catalytic cracking (FCC) diesel. The COSMO‐RS model was used for preliminary screening of IL extractants. The liquid–liquid equilibrium (LLE) experiments were performed to show that the IL [BMIM][BF4] has a high selectivity for the model oil system. Further, the LLE experimental results show that the solubility of 1‐methylnaphthalene in [BMIM][BF4] is relatively low, while the IL exhibits a high selectivity of n‐hexadecane to 1‐methylnaphthalene. This means that the use of [BMIM][BF4] can obtain the high‐purity products when considering the almost nonvolatility of IL. Compared to the benchmark process, the multistage countercurrent–reflux extraction process can improve the PAHs purity by about 2% at the expense of 5.06% total annual cost and 6.42% energy consumption, rendering the use of IL to extract PAHs from FCC diesel more feasible in industry.

Research on separation of aromatics from FCC diesel using organic solvent: A combination of experiments and quantum chemical calculations

Fluid catalytic cracking (FCC) diesel is the main contributor of polycyclic aromatic hydrocarbons (PAHs) in diesel, so reducing the content of PAHs in FCC diesel is of great significance to environmental protection and high-value utilization of FCC diesel. To understand the potential separation of dicyclic aromatic from FCC diesel, dimethyl sulfoxide (DMSO), 2-methoxyethanol (EGME), and N,N-dimethylformamide (DMF) were selected as extracting solvents. The liquid-liquid phase behavior of the dodecane + 1-methylnaphthalene + solvent systems was determined to investigate the solvent extraction ability, the values of S were calculated and the high selectivity of DMSO could be confirmed. Then, the quantum chemical calculation found that the extraction mechanism of DMSO and DMF was weak H-bond and van der Waals (VDW) forces, while that of EGME was only VDW force. Additionally, the structure-activity relationship between solvent molecular structure and solvent selectivity was obtained by combining the experimental results and the quantum chemical calculations, which could provide theoretical guidance for the selection of high separation performance solvents in the future. Finally, the binary interaction parameters of NRTL and UNIQUAC models were obtained with the root-mean-square deviation (RMSD) values all less than 0.60%, which provide basic data for the further simulation of aromatics extraction of FCC diesel.

Phosphoric acid modified Al-TUD-1 material to enhance hydrodesulfurization activities of dibenzothiophene and FCC diesel

Al-TUD-1 (AT) material was successfully prepared via sol-gel method and modified by phosphoric acid. A series characterization of NiMoP/AT catalysts results indicated that after the addition of phosphoric acid, the NiMoP/AT-x series catalysts still retained the large specific surface area and pore structure, which accommodated the active metals for better dispersion. Phosphoric acid could effectively ameliorate the acidity of catalyst and modulate metal-support-interaction (MSI), then the molybdenum species were sulfided to transform into octahedral MoS2 active species with higher degree of sulfurization and dispersion degree. Catalytic performances of different catalysts were estimated using Dibenzothiophene (DBT) and Fluid Catalytic Cracking (FCC) diesel as feedstock, The NiMoP/AT-2 exhibited the maximal DBT hydrodesulfurization (HDS) efficiency of 98.6 % and the highest values of HDS (99.1 %) and hydrodenitrogenation (HDN) (98.5 %) efficiencies for FCC diesel.

Tuning of the active phase structure and hydrofining performance of alumina-supported tri-metallic WMoNi catalysts via phosphorus incorporation

The effects of phosphorus on the structure and hydrofining performance of tri-metallic WMoNi/Al2O3 catalysts prepared with W/Mo-based hybrid precursor nanocrystals were investigated. The incorporation of phosphorus weakened the metal-support interactions (MSIs) and facilitated the formation of more synergetic NiWMoS phases with higher stacks. Catalytic tests using a fluid catalytic cracking diesel fuel showed that the changes in the MSIs and the morphology of the active phases had a more positive effect on the hydrodenitrogenation activity than on the hydrodesulfurization activity. In contrast, when phosphorus was incorporated into a tri-metallic WMoNiP/ Al2O3 catalyst prepared by a conventional incipient impregnation method, the MSIs decreased causing aggregation of the metal species which resulted in poorer hydrofining performance of the catalyst. These results show that incorporating phosphorus into a WMoNi/Al2O3 catalyst can finely tune the structure of the active phase to enhance the hydrogenation and hydrodenitrogenation activity of the resulting tri-metallic catalyst.

Assessment of the desulfurization of FCC vacuum gasoil and light cycle oil using ionic liquid 1-butyl-3-methylimidazolium octylsulfate

Increasingly stringent fuel sulfur content requirements/legislations have resulted in intensive quest for alternative desulfurization technologies that will ensure the treatment of fuels to acceptable sulfur levels. In this regard, the extraction of sulfur compounds from gasoline and diesel oil by ionic liquids (ILs) may represent a green alternative to common hydrodesulfurization for deep desulfurization (<10 ppm sulfur). This paper investigates the extraction efficiency as well as the regeneration of the IL, 1-butyl-3-methylimidazolium octylsulfate ([BMIM][OcSO4]) for the desulfurization of the fluid catalytic cracking diesel fuels. The IL was found to be effective in the selective removal of sulfur from FCC light cycle oil than from the FCC vacuum gasoil stream, achieving 96 and 22.1% sulfur removals, respectively. These results suggest that fuel sulfur content and stream composition affects the extraction efficiency and effectiveness of IL. In addition to the fundamental experiments with FCC diesel fuels, the regeneration of sulfur loaded ILs was studied and a preliminary strategy for the integration of an IL-extraction process into an existing refinery structure is briefly discussed. Regenerated [BMIM][OcSO4] IL was used for desulfurization of diesel and achieved highest sulfur removal of 95%. The IL was regenerated up to four times without appreciable decrease in efficiency. The results obtained herein show that ILs may be effective in the desulfurization of real diesel oils.

Hydro-upgrading Performance of Fluid Catalytic Cracking Diesel over Different Crystal Forms of Alumina-Supported CoMo Catalysts

A series of CoMo/Al2O3 catalysts was prepared using different crystal forms of alumina (including γ-Al2O3, δ-Al2O3, θ-Al2O3, and α-Al2O3) as supports for the hydrodesulfurization (HDS) and hydrodenitrogenation (HDN) of fluid catalytic cracking diesel. The physicochemical properties of the supports and the corresponding catalyst were analyzed by various characterization methods. The results showed that δ-Al2O3 possessed a moderate surface area, a concentrated pore size distribution, and less surface hydroxyl groups. The CoMo/δ-Al2O3 catalyst exhibited the highest HDS and HDN efficiencies, 98.4 and 96.1%, respectively. This could be attributed to its reduced metal–support interaction, moderate stacking morphology, and highest sulfidation degree of active phases. The HDS and HDN efficiencies of the catalysts followed the order of CoMo/α-Al2O3 (87.3 and 72.2%) < CoMo/γ-Al2O3 (94.8 and 87.9%) < CoMo/θ-Al2O3 (96.2 and 90.1%) < CoMo/δ-Al2O3 (98.4 and 96.1%).

Spherical mesocellular silica foams: a superior support for hydrodesulfurization of fluid catalytic cracking diesel

High surface area aluminum containing spherical mesocellular silica foams (SMCFs) with ultra-large pore volume and 3D pore size were successfully synthesized through a simple hydrothermal route, and the as-synthesized aluminum containing SMCFs (Al-SMCFs) was applied as the support of NiMo-base catalyst for the hydrodesulfurization (HDS) of fluid catalytic cracking (FCC) diesel. The as-synthesized supports and corresponding catalysts were characterized by powder small X-ray diffraction, nitrogen physisorption, scanning electron microscopy, transmission electron microscopy (TEM), inductively coupled plasma optical emission spectroscopy, and temperature-programmed reduction with H2. The characterization results showed that, compared with other prepared catalysts (NiMo/Al-SBA-15 and NiMo/Al-KIT-6), the NiMo/Al-SMCFs catalyst possessed the most optimal physicochemical parameters, i.e., ultra-large 3D pore size (42.0 nm), high surface area (330.1 m2·g−1), and ultra-large pore volume (1.96 cm3·g−1), resulting in the formation of more homogeneous distribution of octahedral Mo active species and good mass transfer performance. Consequently, the NiMo/Al-SMCFs catalyst displayed the outstanding HDS performance (98.8%) of FCC diesel, confirming that the Al-SMCFs may be a type of promising candidate for oil hydrotreating.

Trimetallic WMoNi diesel ultra-deep hydrodesulfurization catalysts with enhanced synergism prepared from inorganic–organic hybrid nanocrystals

Supported WMoNi diesel ultra-deep hydrodesulfurization (HDS) catalysts with enhanced synergetic effects among metal species were prepared with W- and Mo-based hybrid inorganic–organic nanocrystals (HNCs) as the W/Mo precursors. The W- and Mo-based HNCs are monodispersed particles with similar structure. The thus-obtained supported WMoNi catalyst has superior hydrogenation and direct desulfurization activities for dibenzothiophene HDS and dramatically higher fluid catalytic cracking diesel HDS performance than WMoNi/Al2O3 prepared by the impregnation method. This benefits from the bimetallic catalyst precursor WMo/Al2O3, which has highly dispersed W and Mo species and high sulfidability and thus generates a large number of metal sulfide slabs after sulfidation. The highly dispersed W/Mo sulfide slabs provide abundant edge sites for dispersing Ni species, facilitating both textural and chemical synergisms among the sulfide phases and yielding more synergetic NiWMoS active phases. The approach opens a novel route to optimizing the synergetic effects among metal species in supported WMoNi catalysts for diesel ultra-deep HDS.

Fast pyrolysis oil from pinewood chips co-processing with vacuum gas oil in an FCC unit for second generation fuel production

Raw bio-oil produced from fast pyrolysis of pine woodchips was co-processed with standard Brazilian vacuum gasoil (VGO) and tested in a 200kg⋅h−1 fluid catalytic cracking (FCC) demonstration-scale unit using a commercial FCC equilibrium catalyst. Two different bio-oil/VGO weight ratios were used: 5/95 and 10/90.Co-processing of raw bio-oil in FCC was shown to be technically feasible. Bio-oil could be directly co-processed with a regular gasoil FCC feed up to 10wt%. The bio-oil and the conventional gasoil were cracked into valuable liquid products such as gasoline and diesel range products.Most of the oxygen present in the bio-oil was eliminated as water and carbon monoxide as these yields were always higher than that of carbon dioxide. Product quality analysis shows that trace oxygenates, primarily alkyl phenols, in FCC gasoline and diesel products are present with or without co-processing oxygenated intermediates. The oxygenate concentrations increase with co-processing, but have not resulted in increased concerns with quality of fuel properties.The presence of renewable carbon was confirmed in gasoline and diesel cuts through 14C isotopic analysis, showing that renewable carbon is not only being converted into coke, CO, and CO2, but also into valuable refining liquid products. Thus, gasoline and diesel could be produced from lignocellulosic raw materials through a conventional refining scheme, which uses the catalytic cracking process. The bio-oil renewable carbon conversion into liquid products (carbon efficiency) was approximately 30%, well above the efficiency found in literature for FCC bio-oil upgrading.

Hierarchically Structured Porous Silica Spheres by Microemulsion/Vesicle Templating for Hydrodesulfurization of Fluid Catalytic Cracking Diesel

A series of hierarchically structured porous silica sphere (HSPSS) materials are successfully fabricated by a facile, one‐step microemulsion/vesicle bimodal method in a multicomponent microemulsion system of P123/n‐butanol/1,3,5‐trimethylbenzene/KCl/H2O (surfactant/cosurfactant/oil/salt/water). The pore structures of the obtained HSPSS products consist of mesocellular foam and mesostructured vesicles. In contrast to the traditional porous silica materials the new structures combine two separate, distinct mesophases with different‐sized mesovoids in a single porous sphere. Moreover, the proportion of every mesophase in obtained HSPSS can be easily adjusted by tuning the initially added amount of n‐butanol or KCl in this multicomponent microemulsion system. When the molar ratio of KCl/tetraethoxysilane is 2.15, the obtained HSPSS material is turned into uniform mesostructured vesicle silica spheres, which consist of many small diameter vesicle particles. The hydrodesulfurization (HDS) activity of fluid catalytic cracking diesel over the HSPSS was tested. HSPSS‐0.75‐1.43 catalyst support with multiple mesoporous structures shows the highest HDS efficiency (98.5%) among all the studied catalysts.

Preparation, characterization, and hydrodesulfurization properties of binary transition-metal sulfide catalysts

Abstract Binary NiMo, CoMo, NiW, and CoW transition-metal oxide catalyst precursors, were synthesized through a hydrothermal reaction, and highly-loaded hydrodesulfurization (HDS) catalysts were prepared by mixing the precursors with an alumina gel, calcination and sulfidation. The transition-metal oxide catalyst precursors and highly-loaded sulfide catalysts were characterized by XRD, N 2 adsorption–desorption, XRF, and HRTEM. Dibenzothiophene and fluid catalytic cracking (FCC) diesel were employed to evaluate the HDS performance. The crystalline phases of ammonium nickel (or cobalt) molybdate were detected in the NiMo (or CoMo) oxide catalyst precursors, while quasi-amorphous phases were observed for the CoW and NiW oxide precursors. In the sulfided HDS catalysts, typical MoS 2 or WS 2 phases were observed by TEM, while XRD demonstrated that Ni and Co sulfides were present, in accordance with HRTEM results. The catalytic results showed that the binary transition-metal CoMo sulfide catalyst exhibited high direct desulfurization activity and that the NiMo sulfide catalyst had higher HDS and hydrodenitrogenation activities toward the FCC diesel than the other catalysts, with conversions of higher than 99.1% and 99.7%, respectively.

TiO2–SiO2-Composite-Supported Catalysts for Residue Fluid Catalytic Cracking Diesel Hydrotreating

Composites of TiO2–SiO2 oxides (CTS) with various Ti/Si atomic ratios were prepared by the sol–gel method, and the CO2 supercritical fluid extraction method was used to remove solvent in the gel. The effects of the Ti/Si atomic ratio and calcination temperature on the specific surface area, pore structure, acidity, and coordination status of the Ti atoms were investigated by N2 desorption, pyridine adsorption, X-ray diffraction (XRD), and X-ray absorption fine structure (XAFS), respectively. Hydrotreating catalysts were prepared with cobalt (Co)–molybdenum (Mo) and nickel (Ni)–tungsten (W) as active metal components supported on CTS-1 and CTS-4, respectively. The hydrotreating activities of the catalysts were tested by processing residue fluid catalytic cracking (RFCC) diesel on a fixed-bed reactor. It was found that hydrodesulfurization (HDS), hydrodenitrogenation (HDN), and hydrodearomatization (HDA) were affected by the acidity of the support and/or catalyst, which was related to the Ti/Si atomic ratio. The catalysts with strong Lewis acidity had better hydrotreating activities for HDS, HDN, and HDA. The study provides insight into a fundamental understanding of the relationship between the Ti/Si atomic ratio of the support and acidity of catalysts and the effect of acidity on the hydrotreating activity of the catalyst.

Interaction of coupled titanium and phosphorous on USY to tune hydrodesulfurization of 4,6-DMDBT and FCC LCO over NiW catalyst

There is growing interest in modifying USY in hydrotreating catalysts to obtain higher activity. This study provides a preliminary investigation of the interaction of titanium-phosphorus modification on USY (TiPY) and their influence on NiW-based catalyst containing USY and hydrodesulfurization (HDS) performances of 4,6-DMDBT (4,6-dimethyldibenzothiophene) and FCC LCO (fluid catalytic cracking diesel oil). Single titanium (TiY) and single phosphorus (PY) modified USY are studied simultaneously to provide further insight into how the interaction influence performance. The interaction between titanium and phosphorus on USY significantly enriched surface aluminum, and promoted the acidity and framework dealumination compared to TiY, PY and parent USY. NiW-based catalyst containing TiPY (NiW/TiPYA) had higher WS2 stacking numbers and more acidity than the catalysts containing TiY or PY. The higher HDS performance was observed with NiW/TiPYA due to the synergistic effect of WS2 stacking numbers and acidity among the catalysts, where the conversion of 4,6-DMDBT and sulfur in FCC LCO was 74.3% and 98.3%, respectively. The results can provide further insight into USY modification and its influence on hydrotreating catalysts.

A Characterization of Bacterium for FCC Diesel Oil Desulfurization

Fluid catalytic cracking (FCC) diesel oil has a high sulfur content, which exists mainly as thiophene, dibenzothiophene, and their derivatives. These kinds of sulfur compounds are not easy to be removed by hydrogenation and other desulfurization methods. HT1 strain, which has high desulfurization ability by using dibenzonthiophene as the sole source of sulfur, was screened. Best conditions of conservation reagent were studied by orthogonal test and analyzed the sequence of the factors. The optimal fermented conditions, which are obtained by using the orthogonal, are following: temperature 30°C, dibenzonthiophene 102.0 mg/L, NH4NO3 2.0 g/L, glycerol 5 g/L, cultivation time four days, and pH 7.0. The sulfur source has no obvious effect on the growth of strains. But the best desulfurization results can be achieved by using dibenzonthiophene as the sole source of sulfur. The desulfurization effect of other sulfur compounds is related to the structure of sulfur compounds. However, the desulfurization ability of the HT1 strain for FCC diesel oil is weak, which means the next step would focus on improving the desulfurization ability.

Synthesis, characterization and hydrodesulfurization properties of nickel–copper–molybdenum catalysts for the production of ultra-low sulfur diesel

A series of nickel–copper–molybdenum catalyst precursors was synthesized through chemical precipitation method, and highly loaded catalysts were prepared by mixing the precursors with alumina sol. The nickel–copper–molybdenum catalysts were tested in the hydrodesulfurization (HDS) of the model compound 4,6-dimethyldibenzothiophene (4,6-DMDBT) and fluid catalytic cracking (FCC) diesel. The catalysts were characterized by means of N2-physisorption, XRD, FT-IR, SEM, TG–DSC–MS, TPR and HRTEM. The characterizations results indicated that nickel–copper–molybdenum catalyst precursors could be synthesized due to the similarities of the lattice parameters and ionic radii of nickel and copper, and the HRTEM micrographs and XRD results of the sulfided nickel–copper–molybdenum catalysts revealed that the introduction of copper affected the particle sizes of the stacked MoS2 and sulfided nickel-containing compounds. The catalytic results showed that the Ni9.5Cu0.5Mo10 catalyst exhibited high catalytic activity in the HDS of 4,6-DMDBT and FCC diesel, and might be suitable for the production of ultra-low sulfur diesel.

Effect of morphology properties of NiW catalysts on hydrodesulfurization for individual sulfur compounds in fluid catalytic cracking diesel

Three catalysts NiW/Al2O3, NiW–P/Al2O3 and NiW–CA/Al2O3 with different morphologies but similar pore structures and acidity properties were prepared for studying the effect of morphology properties on the hydrodesulfurization (HDS) activity for individual sulfur compounds in fluid catalytic cracking (FCC) diesel. The morphology properties of the selected catalysts in oxidation and sulfidation states were characterized and the contents of individual sulfur compounds were determined by gas chromatography–pulse flame photometric detector (GC–PFPD). The results showed that NiW–P/Al2O3 possessed the highest edge density of WS2 phase and NiW–CA/Al2O3 had the highest stacking degree of multilayered WS2 phase. The HDS assessment showed that NiW–CA/Al2O3 demonstrated positive effects on the HDS of refractory sulfur compounds like 4,6-dimethyldibenzothiophene (4,6-DMDBT) or dibenzothiophene (DBT) with alkyl substitutes containing 3 carbons (C3DBT) but slight negative effects on the HDS of simple sulfur compounds such as benzothiophene (BT) with alkyl substitutes containing 1~5 carbons (C1~C5BT) and DBT with alkyl substitutes containing 1 carbon (C1DBT); while NiW–P/Al2O3 favored for the HDS of simple sulfur compounds. The present results indicated that the morphology of WS2 phase has a great influence on the HDS selectivity for different structured sulfur compounds.

Synthesis and catalytic performance of novel hierachically porous material beta-MCM-48 for diesel hydrodesulfurization

Novel hierachically porous material Beta-MCM-48 was successfully synthesized from Beta zeolite seeds by two-step hydrothermal crystallization method using Cetyltrimethylammonium Bromide as the mesostructure directing agent. Beta-MCM-48 composite synthesized at the optimization conditions possessed Beta microporous structure and cubic Ia\( \overline{ 3} \)d mesoporous structure simultaneously. Meanwhile, the acidity of Beta-MCM-48 was similar to Beta zeolite and higher than MCM-48 mesoporous material. A series of Al2O3-Beta-MCM-48 supported NiMo catalysts with different Beta-MCM-48 contents were prepared by the incipient-wetness impregnation method. The catalytic performances were evaluated using DaQing Fluid Catalytic Cracking diesel as feedstock in a high pressure microreactor. Hydrodesulfurization results indicated that NiMo/Al2O3-Beta-MCM-48 catalyst exhibited better activities than that of NiMo/Al2O3 traditional catalyst. NiMo/Al2O3-Beta-MCM-48 catalyst obtained the highest activity as the Beta-MCM-48 content in the support was 20 wt %, and the corresponding sulfur content of the hydrotreated product reached to 23.02 μg g−1.