Integrated crude distillation design

Liebmann, K.; Dhole, V.R.

doi:10.1016/0098-1354(95)87025-3

Cited by 19 publications

(13 citation statements)

References 1 publication

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“…Two main types of models are available for design of crude oil distillation units, namely, shortcut models [7][8][9] and rigorous models 14,17 . The shortcut models adapt the Fenske-Underwood-Gilliland design equations for simple columns.…”

Section: Crude Oil Distillation Unit Simulation Modelmentioning

confidence: 99%

“…For example, Suphanit 7 applied the column decomposition strategy of Liebmann and co-workers 1,14 to develop a shortcut model for the crude oil distillation column. This model was then used within an optimization framework together with pinch analysis to simultaneously optimise distillation operating variables and the heat recovery network (utility demand and area) so as to minimize the total annualized cost.…”

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confidence: 99%

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Optimization-Based Design of Crude Oil Distillation Units Using Rigorous Simulation Models

Ibrahim

Jobson

Guillén‐Gosálbez³

2017

Ind. Eng. Chem. Res.

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The complex nature of crude oil distillation units, including their interactions with the associated heat recovery network and the large number of degrees of freedom, makes their optimization a very challenging task. We address here the design of a complex crude oil distillation unit by integrating rigorous tray-by-tray column simulation using commercial process simulation software with an optimization algorithm. While several approaches were proposed to tackle this problem, most of them relied on simplified models that are unable to deal with the whole complexity of the problem. The design problem is herein formulated to consider both structural variables (the number of trays in each column section) and operational variables (feed inlet temperature, pump-around duties and temperature drops, stripping steam flow rates and reflux ratio). A simulation-optimization approach for designing such a complex system is applied, which searches for the best design while accounting for heat recovery opportunities using pinch analysis. The approach is illustrated by its application to a specific distillation unit, in which numerical results demonstrate that the new approach is capable of identifying appealing design options while accounting for industrially relevant constraints.

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Section: Crude Oil Distillation Unit Simulation Modelmentioning

confidence: 99%

mentioning

confidence: 99%

Optimization-Based Design of Crude Oil Distillation Units Using Rigorous Simulation Models

Ibrahim

Jobson

Guillén‐Gosálbez³

2017

Ind. Eng. Chem. Res.

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“…9 Chen 7 develops a framework to perform synthesis, retrofit, and operational optimization of distillation systems. The method applies the column decomposition concept of Liebmann 4 and simplified distillation models based on the Fenske−Underwood−Gilliland (FUG) method developed by Suphanit 10 and extended by Gadalla 11 and Rastogi. 12 The work of Chen 7 extends these simplified models to account for pumparound location on the separation performance of atmospheric units and proposes a new methodology to specify product flow rates and their boiling points in terms of key components and recoveries.…”

Section: Previous Work On Retrofit Of Crude Oil Distillation Systemsmentioning

confidence: 99%

“…Early retrofit approaches 4,5 rely on the use of the grand composite curve (GCC) to evaluate the energy-performance of distillation systems. Liebmann 4 decomposes the crude oil distillation unit into an indirect sequence of simple columns. Then rigorous simulations facilitate the construction of the GCC, which is used to generate retrofit modifications.…”

Section: Previous Work On Retrofit Of Crude Oil Distillation Systemsmentioning

confidence: 99%

Optimization of Heat-Integrated Crude Oil Distillation Systems. Part III: Optimization Framework

Ochoa-Estopier¹,

Jobson²

2015

Ind. Eng. Chem. Res.

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This paper is the third of a three-part series that applies optimization to maximize the productivity and minimize operating costs of heat-integrated crude oil distillation systems. The approach presented in this paper implements simulation models for the distillation process and heat exchanger network (HEN), and HEN retrofit models into the overall optimization framework. The optimization approach is formulated in two levels. In the first level, simulated annealing is used to optimize the operating conditions of the crude oil distillation unit (e.g., distillation products and stripping steam flow rates, pump-around duties and temperature drops, and furnace exit temperatures) and to propose HEN structural modifications (e.g., adding, removing, relocating heat exchangers; adding, removing stream splitters, etc.). The second level is a nonlinear least-squares problem used to enforce HEN constraints. Three case studies illustrate the application of this approach to increase net profit and reduce annualized costs.

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“…In the separation sequence, some columns have good corrosion resistance, whereas others do not. The addition of a new column, such as a post-fractionator or prefractionator, can also provide a process debottlenecking option (Liebman, 1991). Accordingly, the construction material for the new column, which is related directly to the investment cost and corrosion phenomenon, must also be considered.…”

Section: Constraintsmentioning

confidence: 99%

Review of Retrofitting Distillation Columns Using Thermally Coupled Distillation Sequences and Dividing Wall Columns to Improve Energy Efficiency

Long

Lee

2014

J. Chem. Eng. Japan / JCEJ

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Distillation is a common energy-intensive process. Accordingly, it is the rst process to be addressed to improve the energy e ciency over both the short-and long-term. Recent studies and industrial applications have proven that advanced process integration and process intensi cation techniques such as the use of a thermally coupled distillation sequence (TCDS) and a dividing wall column (DWC) require the lowest amount of energy for the separation of mixtures into pure product streams. This paper reviews some energy-e cient distillation technologies that can be used in a retro t design. The research on and implementation of retro ts using a TCDS and DWC are reviewed. This report proposes coupled schemes as alternatives to using a Petlyuk column that do not have the classical problem of controlling the vapor transfer from one column to another and have not previously been proposed for retro ts. These schemes are expected to make signi cant contributions to improving the energy e ciency and mitigating CO 2 emission in the retro tting of distillation systems. The authors evaluated a solution for retro tting azeotropic and extractive distillation systems. Various issues such as the constraints, techno-economic analysis, controllability, and operability are discussed brie y to provide more insight into the application of TCDS and DWC technologies in the retro t.

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Integrated crude distillation design

Cited by 19 publications

References 1 publication

Optimization-Based Design of Crude Oil Distillation Units Using Rigorous Simulation Models

Optimization-Based Design of Crude Oil Distillation Units Using Rigorous Simulation Models

Optimization of Heat-Integrated Crude Oil Distillation Systems. Part III: Optimization Framework

Review of Retrofitting Distillation Columns Using Thermally Coupled Distillation Sequences and Dividing Wall Columns to Improve Energy Efficiency

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