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Synthesis of iso‐hydrocarbons mixture from CO 2 and H 2 on hybrid catalysts
Author(s) -
Lunev N. K.,
Shmyrko Yu. I.,
Pavlenko N. V.,
Norton B.
Publication year - 2001
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/1099-0739(200102)15:2<99::aid-aoc95>3.0.co;2-1
Subject(s) - chemistry , selectivity , catalysis , diesel fuel , hydrocarbon , fraction (chemistry) , gasoline , mass fraction , carbon number , chemical engineering , organic chemistry , alkyl , engineering
The activity and selectivity of hybrid catalysts of the content α(Zn a Cr b Cu c K d –O x )/β[Fe 3+ /ZSM‐11] have been studied in the reaction of hydrogenation of CO 2 to hydrocarbons, where α, β, a, b, c, d , and x are variables. The process was carried out in a flowing‐type reactor with the fixed layer of the catalyst at 3 MPa within the temperature interval 613–653 K and the volumetric rate of the gaseous mixture was 1325–5000 h −1 . For the most selective catalyst the degree of CO 2 into hydrocarbons conversion was 64.2% (653 K, 3.0 MPa, 1500 h −1 ) at the ratio of the hydrocarbons (C 5 –C 11 ) of iso‐structure to the hydrocarbons of normal structure equal to 3.91. As the temperature of the process increased, the content of the products changed: in hydrocarbons with the same carbon numbers the iso‐structure products content rises. As the volumetric rate increases, the selectivity for hydrocarbons of petrol fraction C 5 –C 11 decreases, and for the diesel fraction C 12 –C 18 and cerezines C 19 –C 24 it increases. The maximum selectivity for hydrocarbons of the petrol fraction is up to 57.3%. Copyright © 2001 John Wiley & Sons, Ltd.