Catalytic Deacidification of Vacuum Gas Oil by ZnO/Al2O3 and Its Modification with Fe2O3

Bai, He; Fu, Xue; Lian, Xin; Jiang, Songshan; Xu, Peng; Deng, X.-M.; He, Changxuan; Chen, Changguo

doi:10.3390/catal9060499

Cited by 6 publications

(2 citation statements)

References 25 publications

(27 reference statements)

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“…A reason for this could be the particle sintering or agglomeration on the catalyst surface, which resulted in weak catalytic activity after a longer calcination duration [39]. Besides, a longer calcination time could deactivate the catalyst's acidic sites [40]. Thus, an optimum calcination time of 2 h was essential to synthesise an EFB supported magnetic acid catalyst.…”

Section: Single Factor Optimisationmentioning

confidence: 99%

Effect of Chemical Pre-Treatment on the Catalytic Performance of Oil Palm EFB Fibre Supported Magnetic Acid Catalyst

2023

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The development of heterogenous catalysts using renewable materials has received wide attention. A heterogenous catalyst has been a preferred choice as it evades the disadvantages of homogeneous catalysts, nevertheless, heterogenous catalysts has limited activity and a longer separation process. The current study emphasises the preparation of a new magnetic catalyst using oil palm empty fruit bunch (EFB) fibre as a carbon-based support material. The effect of different alkaline pre-treatments over the methyl ester conversion rate were investigated. The catalyst preparation parameters were studied by using the single factor optimisation approach, including the fibre loading, impregnation time, calcination temperature, and calcination time. Their effects in the esterification of oleic acid were investigated in this study. The optimisation study shows that the Na2CO3-treated(T)-EFBC magnetic catalyst had the highest esterification rate of 93.5% with 7 g EFB fibre loading, a 2 h impregnation time and a calcination temperature of 500 °C for 2 h. The catalyst possessed a good acidity of 3.5 mmol/g with excellent magnetism properties. This study showed that the catalysts are magnetically separable and exhibited good stability with 82.1% after five cycles. The oil palm EFB supported magnetic acid catalyst indicates it as a potential option to the existing solid catalysts that is economical and environmentally friendly for the esterification process.

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Section: Single Factor Optimisationmentioning

confidence: 99%

Effect of Chemical Pre-Treatment on the Catalytic Performance of Oil Palm EFB Fibre Supported Magnetic Acid Catalyst

2023

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“…The NAs that contain in crude oil may cause serious equipment failures, lead to high maintenance costs, reduce product quality and pose environmental issue [4]. To overcome the problem various methods has been discovered for the removal of NAs from crude oil for example ion exchange, adsorption, catalytic decarboxylation, catalytic esterification, and liquid-liquid extraction [5,6].…”

Section: Introductionmentioning

confidence: 99%

Total Acid Number Reduction of Acidic Petroleum Crude Oil by Using 2-Methylimidazole in Polyethylene Glycol and Ca/Al<sub>2</sub>O<sub>3</sub> Catalyst

Harun

Shohaimi

Daud

2021

MSF

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The Naphthenic Acid (NA) found in the acidic crude oil is one of the main challenges that can lead to corrosion problem in oil refinery equipment and reduces the quality of the oil. In this study, catalytic neutralization reaction was investigated in order to lowering Total Acid Number (TAN) in crude oil to less than one mg KOH/g utilizing 2-Methylimidazole in Polyethylene Glycol (PEG) with aid of Ca/Al2O3 catalyst. The catalyst were supported on the alumina beads through Incipient Wetness Impregnation (IWI) methods and heated in an oven for 24 hours at 80-90°C then calcined at calcination temperatures of 800, 900 and 1000°C. The result showed that Ca/Al2O3 catalyst successfully reduced to 0.52 mg KOH/g from original TAN value 4.22 mg KOH/g by using a catalyst at calcination temperature 1000°C, 0.39 wt % (7 beads) of catalyst loading and 1000 ppm of 2-Methylimidazole in PEG. It can be concluded that catalytic deacidification method was effective method in reducing NAs from the crude oil and can lowered the TAN value to less than 1 mg KOH/g.

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Enhanced Thermophysical Properties and Productive Yield of Pyramid Solar Still Combined with Shallow Solar Pond by Incorporating ZnO/Al2O3 Nanocomposites

Selvakumar¹,

Shanmugapriya²,

Amudha³

et al. 2022

Lecture Notes in Electrical Engineering

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Catalytic Deacidification of Vacuum Gas Oil by ZnO/Al2O3 and Its Modification with Fe2O3

Cited by 6 publications

References 25 publications

Effect of Chemical Pre-Treatment on the Catalytic Performance of Oil Palm EFB Fibre Supported Magnetic Acid Catalyst

Effect of Chemical Pre-Treatment on the Catalytic Performance of Oil Palm EFB Fibre Supported Magnetic Acid Catalyst

Total Acid Number Reduction of Acidic Petroleum Crude Oil by Using 2-Methylimidazole in Polyethylene Glycol and Ca/Al<sub>2</sub>O<sub>3</sub> Catalyst

Enhanced Thermophysical Properties and Productive Yield of Pyramid Solar Still Combined with Shallow Solar Pond by Incorporating ZnO/Al2O3 Nanocomposites

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