Hydroconversion of Oil Vacuum Distillation Residues in the Presence of Iron-Containing Catalysts In Situ Synthesized from Water-Soluble Precursors

The hydroconversion of tars in the presence of in situ synthesized iron-containing catalysts is studied. Water-soluble iron compounds (FeSO 4 , Fe(NO 3 ) 3 , Fe(COOCH 3 ) 2 ) are used as precursors which are introduced into the processed feedstock in the composition of the aqueous phase of an invert...

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Bibliographic Details
Published in:Petroleum chemistry 2018-12, Vol.58 (14), p.1165-1172
Main Authors: Kadiev, Kh. M., Zekel’, L. A., Gyul’maliev, A. M., Dandaev, A. U., Kadieva, M. Kh
Format: Article
Language:English
Subjects:
Catalysis
Catalysts
Catalytic activity
Chemical synthesis
Chemistry
Chemistry and Materials Science
Condensates
Industrial Chemistry/Chemical Engineering
Iron compounds
Iron sulfates
Molybdenum disulfide
Oil sands
Precursors
Tars
Vacuum distillation
Water chemistry
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Summary:The hydroconversion of tars in the presence of in situ synthesized iron-containing catalysts is studied. Water-soluble iron compounds (FeSO 4 , Fe(NO 3 ) 3 , Fe(COOCH 3 ) 2 ) are used as precursors which are introduced into the processed feedstock in the composition of the aqueous phase of an inverted emulsion. The tests are conducted on a flow hydroconversion unit with a vertical hollow reactor. It is found that the catalytic activity of the Fe-containing precursors which, under hydroconversion conditions, form Fe 1– x S nanosized particles, in particular, from Fe(COOCH 3 ) 2 , is close to the catalytic activity of previously studied nanodispersed MoS 2 . A disadvantage of Fe-containing catalysts in situ synthesized from water-soluble iron compounds (FeSO 4 , Fe(NO 3 ) 3 , Fe(COOCH 3 ) 2 ) is a relatively high yield of condensation products (coke) under hydroconversion conditions.
ISSN:0965-5441
1555-6239
DOI:10.1134/S0965544118140025