1D Model for Coupled Simulation of Steam Cracker Convection Section with Improved Evaporation Model

Verhees, Pieter; Amghizar, Ismaël; Goemare, Jühl; Akhras, Abdul Rahman; Marin, Guy; Heynderickx, Geraldine

doi:10.1002/cite.201600059

Cited by 9 publications

(13 citation statements)

References 54 publications

(73 reference statements)

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“…The hot section includes firebox, tubular reactors, convection section, and TLE, which are interconnected as illustrated in Figures and . Rigorous mathematical models are developed by various researchers to estimate the behaviors of firebox, , tubular reactors, TLE and quench section, , and convection section. , For more references, the reader is referred to our survey on the mathematical modeling and simulation of the olefins production plants . Depending on the scale of the models, they are very useful for detailed understanding and investigation of either the units operations or the whole plant.…”

Section: Olefins Production Plantsmentioning

confidence: 99%

Thermal Cracking of Hydrocarbons for the Production of Light Olefins; A Review on Optimal Process Design, Operation, and Control

Fakhroleslam

Sadrameli

2020

Ind. Eng. Chem. Res.

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Olefins production plants are large-scale plants, in most of which gaseous and liquid hydrocarbons are cracked to produce light olefins. The complex and large-scale nature of these plants makes it an utmost necessity to design and operate them with the use of computer-aided optimization and control methods. This review paper provides an overview of the reported research works on the optimization and control of different parts of olefin plants. The main research studies are discussed in two main sections: Optimal Design and Process Operation and Control. In the Optimal Design section, the state of the optimal design of cracking furnace systems, cold-end separation systems, and separation columns have been studied. Then in the Process Operation and Control section, the control of cracking furnaces, the control of cold-end separation systems, real-time optimization of olefin plants, cyclic scheduling of cracking furnace systems, production planning of olefin plants, and finally, start-up and shutdown operations in these plants have been extensively reviewed. This paper is a continuation of the three review articles published previously entitled Thermal and Catalytic Cracking of Hydrocarbons for the Production of Light Olefins, the last of which focused on process modeling and simulation.

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Section: Olefins Production Plantsmentioning

confidence: 99%

Thermal Cracking of Hydrocarbons for the Production of Light Olefins; A Review on Optimal Process Design, Operation, and Control

Fakhroleslam

Sadrameli

2020

Ind. Eng. Chem. Res.

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“…The process gas side of the convection section is modeled using the model recently introduced by Verhees et al [11]. Based on the study of Mahulkar et al [8], it is assumed that droplets suspended in the vapor flow deposit in the first, adiabatic bend of HTC-1.…”

Section: Modelmentioning

confidence: 99%

“…Almost a decade later, Hu et al [10] applied this model to a more complex convection section, with an increased number of steam overheaters, aiming at an increased thermal efficiency. Verhees et al [11]…”

Section: Introductionmentioning

confidence: 98%

Fouling in a Steam Cracker Convection Section Part 1: A Hybrid CFD-1D Model to Obtain Accurate Tube Wall Temperature Profiles

Verhees

Akhras

Heynderickx

2019

Heat Transfer Engineering

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To study fouling in steam cracker convection section tubes, accurate tube wall temperature profiles are needed. In this work, tube wall temperature profiles are calculated using a hybrid model, combining a one-dimensional (1D) process gas side model and a computational fluid dynamics (CFD) flue gas side model. The CFD flue gas side model assures the flue gas side accuracy, accounting for local temperatures, while the 1D process gas side model limits the computational cost. Flow separation in the flue gas side at the upper circumference of each tube suggests the need for a compartmentalized 1D approach. A considerable effect is observed. The hybrid CFD-1D model provides accurate tube wall temperature profiles in a reasonable simulation time, a first step towards simulation-based design of more efficient steam cracker convection sections.

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“…The governing equations and closure models are only briefly described. For a more detailed discussion on the furnace− reactor simulations, the reader is referred to Zhang et al 16 For further details on the convection section simulations, the reader is referred to Verhees et al 23 2.1. Tubular Reactors.…”

Section: Mathematical Modelsmentioning

confidence: 99%

Computational Fluid Dynamics-Based Study of a High Emissivity Coil Coating in an Industrial Steam Cracker

Vangaever

Reyniers

Visser

et al. 2018

Ind. Eng. Chem. Res.

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To assess the effect of applying a high emissivity coating to the reactor coils in a steam cracking furnace, a complete energy balance was made for two cases based on simulations of the radiant section, reactors, convection section, and transfer line exchanger. A base case with a typical emissivity spectrum for a generic high-alloy steel was compared to a case with an artificially increased emissivity corresponding to a high emissivity coating. At the same cracking severity, coating the radiant coils increases the radiant section efficiency by 0.70% absolute, reduces the required furnace firing rate by 1.73%, and reduces the flue gas bridge wall temperature by 14 K. Minor changes to the convection section layout are required to compensate for the shift in duty to the radiant section: the reactor feed is still fully preheated to the targeted crossover temperature, but the production of high pressure steam is reduced.

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1D Model for Coupled Simulation of Steam Cracker Convection Section with Improved Evaporation Model

Cited by 9 publications

References 54 publications

Thermal Cracking of Hydrocarbons for the Production of Light Olefins; A Review on Optimal Process Design, Operation, and Control

Thermal Cracking of Hydrocarbons for the Production of Light Olefins; A Review on Optimal Process Design, Operation, and Control

Fouling in a Steam Cracker Convection Section Part 1: A Hybrid CFD-1D Model to Obtain Accurate Tube Wall Temperature Profiles

Computational Fluid Dynamics-Based Study of a High Emissivity Coil Coating in an Industrial Steam Cracker

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