Catalytic cracking of Swida wilsoniana oil for hydrocarbon biofuel over Cu-modified ZSM-5 zeolite

Li, Changzhu; Ma, Jiangshan; Xiao, Zhihong; Hector, Stanton B.; Liu, Rukuan; Zuo, Shuangmiao; Xie, Xinfeng; Zhang, Aihua; Wu, Hao; Liu, Qiang

doi:10.1016/j.fuel.2018.01.026

Cited by 77 publications

(41 citation statements)

References 38 publications

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“…The decrease in surface area, pore volume and pore diameter may be attributed to the diffusion of oxygen carriers into the ECat pores. As decreasing trend in BET surface area and pore volume with the modification of transition metals on zeolite catalysts have been observed previously [28][29][30][31][32].…”

Section: N2 Adsorption-desorption Analysissupporting

confidence: 75%

Demonstrating the applicability of chemical looping combustion for the regeneration of fluid catalytic cracking catalysts

Güleç

Meredith

Snape

2020

Chemical Engineering Journal

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Section: N2 Adsorption-desorption Analysissupporting

confidence: 75%

Demonstrating the applicability of chemical looping combustion for the regeneration of fluid catalytic cracking catalysts

Güleç

Meredith

Snape

2020

Chemical Engineering Journal

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“…Liquid yield increased from 48 wt.% to 59 wt.% with increasing Co loading from 2.5 wt.% to 10 wt.% and then reduced to 55 wt.% with higher Co loading (>10 wt.%) for Co/AC catalysts. This can be related to increased coke yield (>4 wt.%) in the presence of more Co oxide which blocked access of triglycerides to the active sites for reaction [19]. However, the lowest fatty acid concentration was detected in liquid product by 12.5-Co/AC for the Co/AC catalysts.…”

Section: Co Loadingmentioning

confidence: 98%

Performance of Activated Carbon Supported Cobalt Oxides and Iron Oxide Catalysts in Catalytic Cracking of Waste Cooking Oil

Thangadurai

Tye

2021

Period. Polytech. Chem. Eng.

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This work studied the catalyst activity of activated carbon (AC) supported Co, Fe and Co-Fe oxides in catalytic cracking of waste cooking oil. Reactions were carried out in a fixed bed reactor at 450 °C with WHSV 9 hr–1. Single metal Co/AC and Fe/AC catalysts with different metal loading (2.5–15 wt.%) and bimetal xCo-yFe/AC (x, y = 2.5 to 12.5 wt.%; x + y =15 wt.%) catalysts were investigated. Co/AC and Fe/AC catalysts both contributed to significant liquid yield with high selectivity towards C15 and C17 hydrocarbons. Fe/AC catalysts gave high C5 – C20 hydrocarbon yield whereas Co/AC attained more palmitic (C16) and oleic (C18) acid conversion. Synergistic effect in two metals Co-Fe/AC catalysts had further improved the liquid hydrocarbon yield (up to ~93 %) and fatty acid conversion (up to 94 %). The best catalyst, 10Co-5Fe/AC had been further tested under the effect of reaction temperature, feed flow rate (WHSV) and deactivation for its catalytic performance.

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“…Zr-modified beta zeolite catalyst was prepared exactly the same experimental conditions with using 2.027 gm of zirconium (IV) oxynitrate hydrate and was labeled as ZrBZ. The studies demonstrated that zirconium (IV) oxynitrate hydrate decomposed to the tetragonal phase of ZrO 2 (Š tefanić et al 1999), and copper (II) nitrate trihydrate decomposed to CuO under the experimental conditions that used in this study (Li et al 2018).…”

Section: Catalyst Preparationmentioning

confidence: 58%

Catalytic performance of Cu- and Zr-modified beta zeolite catalysts in the methylation of 2-methylnaphthalene

2018

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2,6-Dimethylnaphthalene (2,6-DMN) is a commercially important chemical for the production of polyethylenenaphthalate and polybutylene naphthalate. However, its complex synthesis procedure and high production cost significantly reduce the use of 2,6-DMN. In this study, the synthesis of 2,6-DMN was investigated with methylation of 2-methylnaphthalene (2-MN) over metal-loaded beta zeolite catalysts including beta zeolite, Cu-impregnated beta zeolite and Zr-impregnated beta zeolite. The experiments were performed in a fixed-bed reactor at atmospheric pressure under a nitrogen atmosphere. The reactor was operated at a temperature range of 400-500°C and varying weight hourly space velocity between 1 and 3 h -1 . The results demonstrated that 2,6-DMN can be synthesized by methylation of 2-MN over beta type zeolite catalysts. Besides 2,6-DMN, the product stream also contained other DMN isomers such as 2,7-DMN, 1,3-DMN, 1,2-DMN and 2,3-DMN. The activity and selectivity of beta zeolite catalyst were remarkably enhanced by Zr impregnation, whereas Cu modification of beta zeolite catalyst had an insignificant effect on its selectivity. The highest conversion of 2-MN reached 81%, the highest ratio of 2,6-DMN/2,7-DMN reached 2.6 and the highest selectivity of 2,6-DMN was found to be 20% by using Zr-modified beta zeolite catalyst.

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Catalytic cracking of Swida wilsoniana oil for hydrocarbon biofuel over Cu-modified ZSM-5 zeolite

Cited by 77 publications

References 38 publications

Demonstrating the applicability of chemical looping combustion for the regeneration of fluid catalytic cracking catalysts

Demonstrating the applicability of chemical looping combustion for the regeneration of fluid catalytic cracking catalysts

Performance of Activated Carbon Supported Cobalt Oxides and Iron Oxide Catalysts in Catalytic Cracking of Waste Cooking Oil

Catalytic performance of Cu- and Zr-modified beta zeolite catalysts in the methylation of 2-methylnaphthalene

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