Ethylene plant scheduling system based on a MINLP formulation

Tjoa, I.B.; Ota, Yasutomo; Matsuo, Hirofumi; Natori, Yukikazu

doi:10.1016/s0098-1354(97)87645-4

Cited by 14 publications

(8 citation statements)

References 5 publications

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“…The development of ROMs for olefin plants attracted interest starting in the 1970s when research works on the optimization and advanced process control (APC) of cracking furnaces were started. There is a large number of researchers who developed and used ROMs for different parts of olefin plants to study topics such as optimization of the operation of tubular reactors, , optimization of cracking furnaces, − flare minimization during start-up and shutdown processes, − control of cracking furnaces, − cyclic scheduling of cracking furnace systems, − production planning, − and RTO. − …”

Section: Olefins Production Plantsmentioning

confidence: 99%

“…Tjoa et al 45 considered in the planning model the feedstock supplies, plant operating conditions, product inventory, and demands; however, the scheduling of the cracking furnaces was not taken into account and the describing mathematical models was not provided. The problem was simply solved as several separated and sequential subproblems associated with a plant's subsystems from upstream cracking furnaces to downstream separation units.…”

Section: Process Operation and Controlmentioning

confidence: 99%

See 1 more Smart Citation

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%

Section: Process Operation and Controlmentioning

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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“…Diaz and Bandoni 17 proposed a mixed integer mathematical planning model for ethylene cracking operation planning, and introduced a program based on a combination of nonlinear optimization and process simulation. Tjoa et al 18 established the MINLP model for on-site operation of the factory according to the operation conditions of ship arrival and storage tank material management as well as solving the scheduling problem of the factory. In addition, Gubitoso et al 19 proposed a nonlinear planning model for ethylene production in combination with operating conditions.…”

Section: Process Synthesis: Intensification Of Ethylene Cracking In I...mentioning

confidence: 99%

Improving the Operational Efficiency of Ethylene Cracking Integrated with Refining by Molecular Management

et al. 2020

Ind. Eng. Chem. Res.

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A new methodology for improving the operational efficiency of ethylene cracking integrated with refining is proposed. In this work, ethylene feedstock optimization was achieved by screening the low-value materials and naphtha in the refinery through the molecular management approach. The process synthesis-intensification model for ethylene production was developed to identify the opportunities for improving operational efficiency. The P-graph method was applied to accelerate problem solving and generate process routes with the objective function of economic gross potential. To determine the optimal process route, the comprehensive operational efficiency index and light hydrocarbon feedstock ratio were further constructed for process route evaluation. A case study of a real ethylene-refining integrated complex indicates that the proposed method could effectively optimize the operational efficiency of ethylene production and that the economic and inherent safety performances could be notably increased by 22.34% and 67.81%, respectively.

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“…However, their planning model is based on a single period with fixed prices and does not incorporate the internal schedules in cracking furnaces. Tjoa et al designed an integration framework for a multi‐period scheduling problem of an ethylene plant by simultaneously considering the feedstock supplies, plant operating conditions, product inventory, and demands . However, the scheduling behaviour of cracking furnaces is not mentioned in their work, nor are the mathematical models provided.…”

Section: Introductionmentioning

confidence: 99%

Integrated short‐term scheduling and production planning in an ethylene plant based on Lagrangian decomposition

Wang

Feng

et al. 2016

Can J Chem Eng

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A cracking furnace, which is the major unit involved in ethylene production, produces various petrochemical products ranging from ethylene to pitch and determines the production yield of an ethylene plant. It is essential to consider the operational performances of the cracking furnaces and to incorporate them into the whole plant's planning problem. Facing this challenge, this paper developed an optimization model, which integrates the scheduling problem of upstream cracking furnaces and the operational planning of the downstream units under a synchronized global time scale. Moreover, a modified Lagrangian decomposition algorithm is proposed for solving the large‐scale mixed integer nonlinear optimization problem. An industrial case study demonstrates the feasibility of the integrated model and the effectiveness of the solution algorithm.

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Ethylene plant scheduling system based on a MINLP formulation

Cited by 14 publications

References 5 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

Improving the Operational Efficiency of Ethylene Cracking Integrated with Refining by Molecular Management

Integrated short‐term scheduling and production planning in an ethylene plant based on Lagrangian decomposition

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