Influence of the Reactor Material Composition on Coke Formation during Ethane Steam Cracking

2014 ◽  
Vol 53 (15) ◽  
pp. 6358-6371 ◽  
Author(s):  
Andrés E. Muñoz Gandarillas ◽  
Kevin M. Van Geem ◽  
Marie-Françoise Reyniers ◽  
Guy B. Marin
Keyword(s):  
Coke Formation ◽  
Material Composition ◽  
Reactor Material ◽  
Steam Cracking

scholarly journals Evaluation of a Ti–Base Alloy as Steam Cracking Reactor Material

Materials ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 2550 ◽  
Author(s):  
Stamatis A. Sarris ◽  
Kim Verbeken ◽  
Marie-Françoise Reyniers ◽  
Kevin M. Van Geem
Keyword(s):  
Base Alloy ◽  
Coke Formation ◽  
Surface Oxidation ◽  
Reactor Material ◽  
X Ray ◽  
Stirred Reactor ◽  
Initiation And Propagation ◽  
Steam Cracking ◽  
Temperature Pretreatment ◽  
Temperature Scanning

Low-coking reactor material technologies are key for improving the performance and sustainability of steam crackers. In an attempt to appraise the coking performance of an alternative Ti–base alloy during ethane steam cracking, an experimental study was performed in a jet stirred reactor under industrially relevant conditions using thermogravimetry (Tgasphase = 1173 K, Ptot = 0.1 MPa, XC2H6 = 70%, and dilution δ = 0.33 kgH2O/kgHC). Initially, a typical pretreatment used for Fe–Ni–Cr alloys was utilized and compared with a pretreatment at increased temperature, aiming at better surface oxidation and thus suppressing coke formation. The results revealed a decrease in coking rates upon high temperature pretreatment of the Ti–base alloy, however, its coking performance was significantly worse compared to the typically used Fe–Ni–Cr alloys, and carbon oxides formation increased by a factor of 30 or more. Moreover, the analyzed coupons showed crack propagation after coking/decoking and cooling down to ambient temperature. Scanning electron microscopy combined with energy-dispersive X-ray spectroscopy indicated that the prompt and unsystematic oxidation of the surface and bulk caused observable crack initiation and propagation due to alloy brittleness. Hence, the tested Ti–base alloy cannot be considered an industrially noteworthy steam cracking reactor alloy.

Crude to Olefins: Effect of Feedstock Composition on Coke Formation in a Bench-Scale Steam Cracking Furnace

2020 ◽  
Vol 59 (7) ◽  
pp. 2849-2859
Author(s):  
Moreno Geerts ◽  
Nenad Ristic ◽  
Marko Djokic ◽  
Syam Ukkandath Aravindakshan ◽  
Guy B. Marin ◽  
...  
Keyword(s):  
Coke Formation ◽  
Bench Scale ◽  
Steam Cracking

Thermal Decomposition of Sulfur Compounds and their Role in Coke Formation during Steam Cracking of Heptane

2016 ◽  
Vol 39 (11) ◽  
pp. 2096-2106 ◽  
Author(s):  
Natalia Olahova ◽  
Marko R. Djokic ◽  
Ruben Van de Vijver ◽  
Nenad D. Ristic ◽  
Guy B. Marin ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Coke Formation ◽  
Sulfur Compounds ◽  
Steam Cracking

Coke Formation in the Transfer Line Exchanger during Steam Cracking of Hydrocarbons

2009 ◽  
Vol 48 (23) ◽  
pp. 10343-10358 ◽  
Author(s):  
Kevin M. Van Geem ◽  
Inge Dhuyvetter ◽  
Serge Prokopiev ◽  
Marie-Françoise Reyniers ◽  
Dominique Viennet ◽  
...  
Keyword(s):  
Coke Formation ◽  
Transfer Line ◽  
Steam Cracking

CoatAlloy Barrier Coating for Reduced Coke Formation in Steam Cracking Reactors: Experimental Validation and Simulations

2018 ◽  
Vol 57 (3) ◽  
pp. 897-907 ◽  
Author(s):  
Natália Olahová ◽  
Steffen H. Symoens ◽  
Marko R. Djokic ◽  
Nenad D. Ristic ◽  
Stamatis A. Sarris ◽  
...  
Keyword(s):  
Experimental Validation ◽  
Coke Formation ◽  
Barrier Coating ◽  
Steam Cracking

Reply to Comments on “Kinetic Modeling of Coke Formation during Steam Cracking”

2002 ◽  
Vol 41 (24) ◽  
pp. 6213-6214 ◽  
Author(s):  
Marie-Françoise S. G. Reyniers ◽  
Sandra Wauters ◽  
Guy B. Marin
Keyword(s):  
Kinetic Modeling ◽  
Coke Formation ◽  
Steam Cracking

Coke Formation During Hydrocarbons Pyrolysis. Part One: Steam Cracking

1992 ◽  
Vol 47 (4) ◽  
pp. 537-549 ◽  
Author(s):  
J. Weill ◽  
P. Broutin ◽  
F. Billaud ◽  
C. Gueret
Keyword(s):  
Coke Formation ◽  
Steam Cracking

Relative rates of coke formation from hydrocarbons in steam cracking of naphtha. 2. Paraffins, naphthenes, mono-, di-, and cycloolefins, and acetylenes

1993 ◽  
Vol 32 (1) ◽  
pp. 56-61 ◽  
Author(s):  
Frank Dieter Kopinke ◽  
Gerhard Zimmermann ◽  
Geerd C. Reyniers ◽  
Gilbert F. Froment
Keyword(s):  
Coke Formation ◽  
Steam Cracking
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