Deoxygenation of non-edible fatty acid for green diesel production: Effect of metal loading amount over Ni/MgO–Al2O3 on the catalytic performance and reaction pathway

Jeon, Kyung-Won; Park, Ho-Ryong; Lee, Yeol-Lim; Kim, Jee‐Eun; Jang, Won-Jun; Shim, Jae-Oh; Roh, Hyun Seog

doi:10.1016/j.fuel.2021.122488

Cited by 23 publications

(5 citation statements)

References 64 publications

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“…To be more specific, Nugrahaningtyas et al [ 46 ] prepared a nickel/mordenite catalyst following the wet impregnation method combined with two reflux steps and evaluated these catalysts for the hydrotreatment of WCO, achieving a 56.6% green diesel yield at 350 °C. Jeon et al [ 47 ] studied the deoxygenation of oleic acid for green diesel production over Ni/MgO-Al 2 O 3 catalysts prepared by incipient wetness impregnation. They found that a catalyst containing 20 wt.…”

Section: Resultsmentioning

confidence: 99%

Nickel—Alumina Catalysts for the Transformation of Vegetable Oils into Green Diesel: The Role of Preparation Method, Activation Temperature, and Reaction Conditions

et al. 2023

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Two nickel alumina catalysts containing 60 wt. % Ni were synthesized by wet impregnation and co-precipitation in order to study the effect of preparation methods on the catalytic efficiency concerning the transformation of sunflower oil into green diesel. The effect of activation temperature on the catalytic efficiency of the most active catalyst was also studied. The catalysts were characterized using various techniques and which were evaluated in the aforementioned reaction using a semi-batch reactor. The catalyst prepared by co-precipitation exhibited a higher specific surface area and smaller mean crystal size of the nickel nanoparticle (higher nickel metallic surface). These justify its higher efficiency with respect to the corresponding catalyst synthesized by wet impregnation. The increase in the activation temperature from 400 to 600 °C increased the size of the nickel nanoparticles through sintering, thus destroying the small pores. These led to a decrease in the nickel surface and specific surface area and, thus, to a decrease in the catalytic efficiency. The optimization of the reaction conditions over the most active catalyst (prepared by co-precipitation and activated at 400 °C) leads to the complete transformation not only of the sunflower oil (edible oil) but also of waste cooking oil (non-edible oil) into green diesel. The liquid produced after the hydrotreatment for these two feedstocks for 7 h, at H2 pressure 40 bar and temperature 350 °C using 100 mL of oil and 1 g of catalyst was composed of 97 and 96 wt. % of green diesel, respectively.

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Section: Resultsmentioning

confidence: 99%

Nickel—Alumina Catalysts for the Transformation of Vegetable Oils into Green Diesel: The Role of Preparation Method, Activation Temperature, and Reaction Conditions

et al. 2023

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“…Apart from that, the active site of Ni metal accommodated the hydrogen split and C–C cleavage. 108 Interestingly, Ni also directed the reaction route to DCO/DCO 2 in the deoxygenation of stearic acid at 250 °C and 3 MPa. It was claimed that metal area of Ni was responsible for the high heptadecane selectivity of 90%.…”

Section: Influence Of Catalystmentioning

confidence: 99%

Selectivity of reaction pathways for green diesel production towards biojet fuel applications

et al. 2023

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“…This condition is also reinforced by the even distribution of Ni particles on the RM surface to maximize the contact between reactants and Ni. Jeon et al (2022) varied the Ni concentration (5, 10, 15, 20, 30%) with MG70 support (70% MgO in Al2O3) on HDO of oleic acid extracted from PFAD. The greater the Ni loading, the greater the resulting conversion.…”

Section: Effect Of Nickel Active Phasementioning

confidence: 99%

Synthesis of Green Diesel from Palm Oil Using Nickel-based Catalyst: A Review

Aziz

Sugita

Darmawan

et al. 2023

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Petroleum is the primary energy that is generally used throughout the world. Its non-renewable nature and exhaust gas emissions that can damage the environment are a concern for developing environmentally friendly renewable energy. Green diesel is an alternative energy to replace diesel fuel (diesel) from petroleum which has the potential to be developed. The raw material in palm oil has great potential for development due to its relatively high production. Green diesel synthesis can be carried out using the catalytic deoxygenation method. The type of raw material, catalyst, and process conditions influences this method. The catalyst is the most influential factor in catalytic deoxygenation. Transition metal catalysts like nickel are inexpensive and have good catalytic activity like precious metals. Catalytic activity can be increased by modifying the catalyst components and optimizing the process. Modification of the catalyst can increase the surface area, Lewis and Bronsted sites, and crystal size so that the resulting green diesel can be maximized, such as Ni-Co, Ni-Zn, and Ni-Mo bimetallic catalysts.

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Deoxygenation of non-edible fatty acid for green diesel production: Effect of metal loading amount over Ni/MgO–Al2O3 on the catalytic performance and reaction pathway

Cited by 23 publications

References 64 publications

Nickel—Alumina Catalysts for the Transformation of Vegetable Oils into Green Diesel: The Role of Preparation Method, Activation Temperature, and Reaction Conditions

Nickel—Alumina Catalysts for the Transformation of Vegetable Oils into Green Diesel: The Role of Preparation Method, Activation Temperature, and Reaction Conditions

Selectivity of reaction pathways for green diesel production towards biojet fuel applications

Synthesis of Green Diesel from Palm Oil Using Nickel-based Catalyst: A Review

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