Feedstock Effects on Selecting the Appropriate Coil Configuration for Cracking Furnaces
In the present research, steam cracking of two types of
feedstocks i.e., naphtha and ethane is simulated for Pyrocrack1-1 and
2/2 coil configurations considering two key parameters of coil outlet
temperature (COT) and coil capacity using a radical based kinetic
model. The computer model is confirmed using the industrial data
obtained from Amirkabir Petrochemical Complex. The results are in
good agreement with performance data for naphtha cracking in a
wide range of severity (0.4-0.7), and for ethane cracking on various
conversions (50-70). It was found that Pyrocrack2-2 coil type is an
appropriate choice for steam cracking of ethane at reasonable
ethylene yield while resulting in much lower tube wall temperature
while Pyrocrack1-1 coil type is a proper selection for liquid
feedstocks i.e. naphtha. It can be used for cracking of liquid
feedstocks at optimal ethylene yield whereas not exceeding the
allowable maximum tube temperature.
[1] Z. Renjun, "Fundamentals of Pyrolysis", Lewis Pub (1993).
[2] B. P. Ennis, H. B. Boyd, R. Orriss, "Olefin manufacture via millisecond
pyrolysis" Chemtech, November, 693-703, (1975)
[3] J. L. de. Blieck, A. G. Goossens, "Optimize Olefin Cracking Coils",
Hydrocarbon Processing, March, 76-80, (1971)
[4] L. F. Albright, B. L. Crynes, "Industrial and Laboratory Pyrolysis", ACS
Symposium Series, (1976)
[5] P. M. Plehiers, G. F. Froment, "Reversed Split Coil improves ethylene
yields", Oil and Gas Journal-Technology, 41-49, (1987)
[6] A. K. Parameswaran, V. K. Sharma, D. Kunzru, "Modeling of Naphtah
pyrolysis in swaged coils" The Canadian Journal of Chemical
Engineering, 66, 957-963, (1988)
[7] G. J. Heynderickx, G. F. Froment, P. S. Broutin, C. R. Busson, J. E.
Weill, "Modeling and simulation of a honeycomb Reactor for High-
Severity Thermal cracking", AICHE Journal, 37, 1354-1364, (1991)
[8] P. M. Plehiers, G. F. Froment, "The Uno-Quattro Coil: High Severities
for Increased Ethylene selectivity", Ind. Eng. Chem. Res., 30, 1081-
1086, (1991)
[9] G. J. Heyderickx, G. F. Froment, G. H. Martin, "A shell and Tube.
Pyrolysis Reactor for Olefin Production", Ind. Eng. Chem. Res., 31,
2080-2087, (1992)
[10] R. Karimzadeh , M. Ghashgaee, "Design of a flexible pilot plant reactor
for the steam cracking process" , Chem. Eng. Tech., 31, No.2, 278-286,
(2008)
[11] R Karimzadeh, A. Hematian, M. R. Omidkhah, "The Effect Of Coil
Configuration On Run Length Of Thermal Cracking Reactors",
International Journal Of Chemical Reactor Engineering, Vol. 5, Article
A118, (2007)
[12] J. Fernandez, "Factors Affecting Pyrolysis Heater selectivity", A.I.Ch.E.
Journal, Vol. 18, 18-31, (1972)
[13] J. E. Gwyn, "Universal yield models for the steam pyrolysis of
hydrocarbons to Olefins", Fuel Processing Technology, vol 701, 1.7,
(2001)
[14] P.M. Plehiers, G. C. Reyniers, G. F. Froment, "Simulation of The Run
Length of An Ethane Cracking Furnace", Ind. Eng. Chem. Res.,
(Vol.29), 636-644, (1990)
[1] Z. Renjun, "Fundamentals of Pyrolysis", Lewis Pub (1993).
[2] B. P. Ennis, H. B. Boyd, R. Orriss, "Olefin manufacture via millisecond
pyrolysis" Chemtech, November, 693-703, (1975)
[3] J. L. de. Blieck, A. G. Goossens, "Optimize Olefin Cracking Coils",
Hydrocarbon Processing, March, 76-80, (1971)
[4] L. F. Albright, B. L. Crynes, "Industrial and Laboratory Pyrolysis", ACS
Symposium Series, (1976)
[5] P. M. Plehiers, G. F. Froment, "Reversed Split Coil improves ethylene
yields", Oil and Gas Journal-Technology, 41-49, (1987)
[6] A. K. Parameswaran, V. K. Sharma, D. Kunzru, "Modeling of Naphtah
pyrolysis in swaged coils" The Canadian Journal of Chemical
Engineering, 66, 957-963, (1988)
[7] G. J. Heynderickx, G. F. Froment, P. S. Broutin, C. R. Busson, J. E.
Weill, "Modeling and simulation of a honeycomb Reactor for High-
Severity Thermal cracking", AICHE Journal, 37, 1354-1364, (1991)
[8] P. M. Plehiers, G. F. Froment, "The Uno-Quattro Coil: High Severities
for Increased Ethylene selectivity", Ind. Eng. Chem. Res., 30, 1081-
1086, (1991)
[9] G. J. Heyderickx, G. F. Froment, G. H. Martin, "A shell and Tube.
Pyrolysis Reactor for Olefin Production", Ind. Eng. Chem. Res., 31,
2080-2087, (1992)
[10] R. Karimzadeh , M. Ghashgaee, "Design of a flexible pilot plant reactor
for the steam cracking process" , Chem. Eng. Tech., 31, No.2, 278-286,
(2008)
[11] R Karimzadeh, A. Hematian, M. R. Omidkhah, "The Effect Of Coil
Configuration On Run Length Of Thermal Cracking Reactors",
International Journal Of Chemical Reactor Engineering, Vol. 5, Article
A118, (2007)
[12] J. Fernandez, "Factors Affecting Pyrolysis Heater selectivity", A.I.Ch.E.
Journal, Vol. 18, 18-31, (1972)
[13] J. E. Gwyn, "Universal yield models for the steam pyrolysis of
hydrocarbons to Olefins", Fuel Processing Technology, vol 701, 1.7,
(2001)
[14] P.M. Plehiers, G. C. Reyniers, G. F. Froment, "Simulation of The Run
Length of An Ethane Cracking Furnace", Ind. Eng. Chem. Res.,
(Vol.29), 636-644, (1990)
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:53651", author = "Ramin Karimzadeh and Nazi Rahimi and Mohammad Ghashghaee", title = "Feedstock Effects on Selecting the Appropriate Coil Configuration for Cracking Furnaces", abstract = "In the present research, steam cracking of two types of
feedstocks i.e., naphtha and ethane is simulated for Pyrocrack1-1 and
2/2 coil configurations considering two key parameters of coil outlet
temperature (COT) and coil capacity using a radical based kinetic
model. The computer model is confirmed using the industrial data
obtained from Amirkabir Petrochemical Complex. The results are in
good agreement with performance data for naphtha cracking in a
wide range of severity (0.4-0.7), and for ethane cracking on various
conversions (50-70). It was found that Pyrocrack2-2 coil type is an
appropriate choice for steam cracking of ethane at reasonable
ethylene yield while resulting in much lower tube wall temperature
while Pyrocrack1-1 coil type is a proper selection for liquid
feedstocks i.e. naphtha. It can be used for cracking of liquid
feedstocks at optimal ethylene yield whereas not exceeding the
allowable maximum tube temperature.", keywords = "Coil configuration, Ethane, Naphtha, Steamcracking.", volume = "4", number = "2", pages = "172-4", }