Cracking of Heavy Oils Using Catalytic Additives Based on Coal Fly Ash Ferrospheres | Научно-инновационный портал СФУ

Cracking of Heavy Oils Using Catalytic Additives Based on Coal Fly Ash Ferrospheres

Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1134/S2070050415040078

Ключевые слова: heavy oils, oil residue, coal fly ash ferrospheres, initiated cracking, Carbon, Catalyst activity, Catalysts, Catalytic cracking, Coal, Coal ash, Coal combustion, Cracks, Crude oil, Fly ash, Gasoline, Heavy oil production, Paraffin oils, Paraffins, Sulfur compounds, Carbon compounds, Catalytic additives, Coal fly ash, Gasoline fractions, Low cost catalysts, Oil residues, Structural characteristics, Thermal cracking, Cracking (chemical)

Аннотация: Finding new low-cost catalysts, especially ones that can be used in cracking, is a problem of great interest in the refining of heavy oils. The activity of redox catalysts based on coal fly ash ferrospheres is examined for the cracking of two types of heavy oils (paraffin and asphaltenic), and for paraffin oil residue under autoclave conditions. It is established that at 450 degrees C and with 10 wt % of ferrospheres, the selectivity of the formation of liquid products can be as high as 95-96% for paraffin oil and 72% for asphaltenic oil. The content of light products and the gasoline fraction increases in liquid products in comparison to thermal cracking. The effect of ferrospheres is most pronounced in the cracking of paraffin oil: the light fraction in the oil cracking products grows by approximately 20% relative to those obtained after thermal cracking, reaching almost 67%; the gasoline fraction in the light products of oil residue cracking grow by 14 times. The phase composition and structural characteristics of ferrospheres change during cracking, carbon compounds with different combustion reactivity are deposited on their surfaces, and concentrated sulfur compounds from heavy oils are observed.

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Издание

Журнал: CATALYSIS IN INDUSTRY

Выпуск журнала: Vol. 7, Is. 4

Номера страниц: 293-300

ISSN журнала: 20700504

Место издания: MOSCOW

Издатель: MAIK NAUKA-INTERPERIODICA

Авторы

  • Golovko A.K. (Institute of Petroleum Chemistry,Siberian Branch,Russian Academy of Sciences)
  • Kopytov M.A. (Institute of Petroleum Chemistry,Siberian Branch,Russian Academy of Sciences)
  • Sharonova O.M. (Institute of Chemistry and Chemical Technology,Siberian Branch,Russian Academy of Sciences)
  • Kirik N.P. (Institute of Chemistry and Chemical Technology,Siberian Branch,Russian Academy of Sciences)
  • Anshits A.G. (Siberian Federal University)

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