Kinetic Analysis on Pyrolysis Characteristics of Butene Isomer Fuels with CO2 Additions

Chen, Chen; Zhao, Rui; Ying, Yaoyao; Liu, Dong

doi:10.1007/s11630-022-1665-y

Cited by 3 publications

(1 citation statement)

References 27 publications

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“…Nevertheless, the cracking of this feedstock, which may contain tens of percent of unsaturated hydrocarbons, has not been completely studied under industrially relevant conditions yet, although kinetics studies for some representatives of the C4 fraction were published in other context [ 4 , 5 , 6 , 7 , 8 ], which includes the mechanistic studies of 1- and 2-butenes pyrolysis and C4 pyrolysis reactions that are related to their fuel usage and combustion. At the same time, this feedstock deserves special attention, due to its atypical behavior in comparison with conventional saturated streams.…”

Section: Introductionmentioning

confidence: 99%

Co-Pyrolysis of Unsaturated C4 and Saturated C6+ Hydrocarbons—An Experimental Study to Evaluate Steam-Cracking Performance

et al. 2023

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Unsaturated C4 hydrocarbons are abundant in various petrochemical streams. They can be considered as a potential feedstock for the steam-cracking process, where they must be co-processed with C6 and higher (C6+) hydrocarbons of primary naphtha fractions. Co-pyrolysis experiments aiming at the comparison of different C4 hydrocarbon performances were carried out in a laboratory micro-pyrolysis reactor under standardized conditions: 820 °C, 400 kPa, and 0.2 s residence time in the reaction zone. C4 hydrocarbons were co-pyrolyzed with different co-pyrolysis partners containing longer hydrocarbon chain to study the influence of the co-pyrolysis partner structure on the behavior of C4 hydrocarbons. The yields of the pyrolysis products and the conversion of C4 hydrocarbons were used as the performance factors. A regression model was developed and used as a valuable tool for quantifying the inhibition or acceleration effect of co-pyrolysis on the conversion of co-pyrolyzed hydrocarbons. It was found that the performance of different C4 hydrocarbons in co-pyrolysis is substantially different from the separate pyrolysis of the individual components.

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