Amelioration of catalytic activity in steam catalytic cracking of vacuum residue with ZrO2-impregnated macro–mesoporous red mud

Nguyen‐Huy, Chinh; Shin, Eun Woo

doi:10.1016/j.fuel.2016.03.062

Cited by 21 publications

(16 citation statements)

References 36 publications

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“…Iron oxide-based catalyst showed excellent usability for oil sand bitumen upgrading as approximately 10 % of coke was removed by air calcination after 6 h of bitumen cracking and the catalyst was reused 17) . The activity of zirconia-impregnated macro-mesoporous red mud was maintained over repeated reaction and regeneration cycles 18) . In the present study, VR conversion was maintained for 6 h of AR cracking.…”

Section: Characterization Of Catalystsmentioning

confidence: 99%

Upgrading of Heavy Oil with Steam Using Iron Oxide-based Catalyst

Fumoto

2018

J. Jpn. Petrol. Inst.

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Heavy oil, such as petroleum residual oil, requires upgrading for use in the production of transportation fuels in the petroleum industry. Heavy oil has low hydrogen to carbon (H/C) ratio and high viscosity, and contains impurities such as sulfur and metals. Various conventional upgrading processes including coking, visbreaking, hydrotreating, hydrocracking, residue fluid catalytic cracking (RFCC), and deasphalting have been developed 1). Hydrogen addition is useful to convert heavy oil to light fractions with high H/C ratio and low sulfur content, resulting in lower coke yield, but hydrogen is expensive. Water has good potential as a hydrogen source for the upgrading of heavy oil. Upgrading of heavy oil with water requires the following catalyst properties: high activity to decompose heavy oil, stable activity under severe hydrothermal or steam conditions, and resistance to deposition of coke, sulfur, and metals. Upgrading of heavy oil with water has been reported using various catalysts, such as nickel potassium 2) 4) , cerium oxide 5),6) , titania _ zirconia 7) , and iron oxide 8) 21). Iron oxide is inexpensive and is a candidate catalyst for industrial upgrading of heavy oil with water. We previously developed a zirconia-supporting iron oxide catalyst to decompose petroleum residual oil under a steam atmosphere 8). The physical durability of the catalyst was enhanced by addition of aluminum to iron oxide 9),10). Upgrading of oil sand bitumen was investigated with iron oxide-based catalysts using suband super-critical water 17). Catalytic cracking of petroleum residual oil can be achieved with silicasupported iron oxide catalysts in supercritical water 16). Steam catalytic cracking of petroleum residual oil is possible using zirconia-impregnated macro-mesoporous red mud, which contains iron oxide and alumina 18),19). This review examines catalytic cracking of heavy oil using iron oxide-based catalysts containing zirconium and aluminum under a steam atmosphere. 2. Catalytic Cracking of Heavy Oil with Steam 2. 1. Oxidative Cracking of Heavy Oil Catalytic cracking of atmospheric residual oil (AR) with steam was conducted at 748 K under atmospheric pressure using a fixed-bed reactor. Figure 1 shows the schematic experimental apparatus 11). A complex metal oxide catalyst was prepared by a coprecipitation method using a water solution of iron chloride, aluminum chloride, and zirconium oxychloride. The catalyst was treated at 873 K for 1 h under a steam atmosphere and sieved to obtain particles of 300-850 μm. The molar composition of the catalyst was Zr/Fe 0.063, Al/Fe 0.13, abbreviated as Zr _ Al _ FeOx. The obtained cata-323

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Section: Characterization Of Catalystsmentioning

confidence: 99%

Upgrading of Heavy Oil with Steam Using Iron Oxide-based Catalyst

Fumoto

2018

J. Jpn. Petrol. Inst.

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“…But most of the commercial catalytic cracking process is carried out using silica alumina and zeolite catalysts type [7]. Even so, research on catalysts in the process of catalytic cracking residues continues to grow until now such as the development of zeolite catalysts [5,16], catalysts of metal oxide nanoparticles [17], zirconia catalysts impregnated in red mud [18,19], and rare earth catalyst [20,21]. Table 2 shows the variates of catalysts and feeds for the RCC unit equipped with the operation condition and conversion value.…”

Section: The Catalyst Of Residue Catalytic Crackingmentioning

confidence: 99%

Recent Catalyst Technology Development in Residue Catalytic Cracking Unit: A Mini Review

Suhendra

Laksana

Widiastuti

et al. 2019

CHEMICA: Jurnal Teknik Kimia

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“…Модифицирование катализаторов диоксидом церия улучшает их свойства, а проведение Железооксидные катализаторы на основе красного шлама (отхода, образующегося при переработке боксита в процессе Байера), модифицированные ZrO 2 , могут быть более эффек-тивны, чем синтетические катализаторы схожего состава [99,122]. Было показано, что в случае использования таких катализаторов, обладающих макромезопористой текстурой, возможно достижение конверсии гудрона 80 % и увеличение соотношения H/C в жидких продуктах до 1,91 (в исходном сырье -1,34) при сохранении стабильности и способности к регенерации ис-пользуемых катализаторов с выходом кокса менее 3 мас.…”

Section: каталитический паровой крекинг тяжелого нефтяного сырья в реunclassified

“…Было показано, что в случае использования таких катализаторов, обладающих макромезопористой текстурой, возможно достижение конверсии гудрона 80 % и увеличение соотношения H/C в жидких продуктах до 1,91 (в исходном сырье -1,34) при сохранении стабильности и способности к регенерации ис-пользуемых катализаторов с выходом кокса менее 3 мас. % [122].…”

Section: каталитический паровой крекинг тяжелого нефтяного сырья в реunclassified