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

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

scholarly journals Alumina-based Coating for Coke Reduction in Steam Crackers

Materials ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2025
Author(s):  
Stamatis A. Sarris ◽  
Steffen H. Symoens ◽  
Natalia Olahova ◽  
Marie-Françoise Reyniers ◽  
Guy B. Marin ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Base Alloy ◽  
Product Distribution ◽  
X Ray ◽  
Barrier Coating ◽  
Sulfur Addition ◽  
Steam Cracking ◽  
On Line ◽  
Set Up ◽  
Section Analysis

Alumina-based coatings have been claimed as being an advantageous modification in industrial ethylene furnaces. In this work, on-line experimentally measured coking rates of a commercial coating (CoatAlloy™) have pointed out its superiority compared to an uncoated reference material in an electrobalance set-up. Additionally, the effects of presulfiding with 500 ppmw DMDS per H2O, continuous addition of 41 ppmw S per HC of DMDS, and a combination thereof were evaluated during ethane steam cracking under industrially relevant conditions (Tgasphase = 1173 K, Ptot = 0.1 MPa, XC2H6 = 70%, dilution δ = 0.33 kgH2O/kgHC). The examined samples were further evaluated using online thermogravimetry, scanning electron microscopy and energy diffractive X-ray for surface and cross-section analysis together with X-ray photoelectron spectroscopy and wavelength-dispersive X-ray spectroscopy for surface analysis. The passivating coating illustrated a better performance than the reference Ni-Cr Fe-base alloy after application of an improved pretreatment, followed by piddling changes on the product distribution. Presulfiding of the coating affected negatively the observed coking rates in comparison with the reference alloy, so alternative presulfiding and sulfur addition strategies are recommended when using this barrier coating.

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

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

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
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