Layout Aspects of Pipeless Batch Plants

Patsiatzis, Dimitrios I.; Xu, Gang; Papageorgiou, Lazaros G.

doi:10.1021/ie040233p

Cited by 14 publications

(8 citation statements)

References 25 publications

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“…It involves the expertise of civil, electrical, industrial, infrastructure and mechanical engineers, as well as architects, consultants in different areas including public acceptance, managers and chemists [24][25][26]. The objectives of the plant layout strategy are to meet: (i) economic aspects: minimal capital investments along with reduced operation and maintenance expenses; (ii) satisfying capacity and quality constraints; (iii) minimal environmental pollution; (iv) reduced production times and maintaining high flexibility for unexpected changes;…”

Section: Desalination Plant Designmentioning

confidence: 99%

The use of computer aided techniques for revere osmosis desalination layout design

Bick

Oron

2011

Desalination and Water Treatment

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ab s t r ac tThis paper presents an efficient solution approach for large-scale, desalination process plant layout problems based on revese osmosis (RO) technology. The final plant layouts (i.e. coordinates and dimensions for each equipment item) are determined from an initial feasible solution followed by an iterative improvement procedure based on computer aided algorithms. The applicability of the solution algorithm is demonstrated through an illustrative example (125,000 m 3 /d). The computational results indicate that the proposed approach successfully achieves good quality solutions based on the objective function (short response time, and flexibility) for seawater desalination plants with modest computational requirements.

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Section: Desalination Plant Designmentioning

confidence: 99%

The use of computer aided techniques for revere osmosis desalination layout design

Bick

Oron

2011

Desalination and Water Treatment

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“…Later works by Huang and Chung and Shaik and Mathur considered the integrated scheduling and routing problem in different layouts. Research has also been carried out taking into account the simultaneous design and operational scheduling of such plants. , …”

Section: Introductionmentioning

confidence: 99%

“…Research has also been carried out taking into account the simultaneous design and operational scheduling of such plants. 11,12 As described earlier, working of pipeless plants assisted by AGVs is different from plants assisted by cranes. Since the movements of AGVs and cranes are different, models used for solving AGV-assisted plants cannot be used for crane-assisted plants.…”

Section: Introductionmentioning

confidence: 99%

A Scheduling Model Framework for Crane-Assisted Pipeless Process Plants

Nallasivam

Patnaikuni

et al. 2021

Ind. Eng. Chem. Res.

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In this work, for the first time, we present a general framework for the scheduling of crane-assisted pipeless batch (and semibatch) process plant operations. Using the framework, we develop a precedence-based continuous-time mixed integer linear programming (MILP) model for the short-term real-time operational scheduling of such plants. Of particular concern is the use of cranes as a resource for vessel-transfer, during which inter-crane collision must be avoided, for which we make a comprehensive presentation. Combined with this are the vessel-transfer restrictions arising due to vessel-carrying capacity limitations and operational requirements at processing equipment of such plants. Also of consideration is the possible utility of intermediate stands for temporary storage of vessels in-between operations, which brings a modeling challenge in the continuous-time framework. We demonstrate the utility of the presented framework by applying it to four different problem settings that arise from operations in crane-assisted pipeless batch process plant environments. We believe that the work will serve the way forward to provide immediately retrievable, safely implementable, operational decision-making capabilities in real-time for crane-assisted pipeless batch process plants, enabling a more productive, automated operation of such volatile environments.

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“…Huang and Chung considered the simultaneous solution of scheduling and routing using constraint-based methodology suitable for different layouts. Patsiatzis et al and Yoo et al incorporated different layout and design aspects into the scheduling problem. Zeballos and Mendez proposed a constraint-programming-based efficient search method for solving the simultaneous scheduling and routing problem.…”

Section: Introductionmentioning

confidence: 99%

Generalization of Scheduling Models for Batch Plants and Pipeless Plants

Shaik

Mathur

2019

Ind. Eng. Chem. Res.

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Unlike in batch operations where significant progress has been made, there is no adequate research work done on optimal operations of pipeless plants. Pipeless plants were initially explored as an alternative production setup with potential applications in production of paints, adhesives, lubricants, food, pharmaceuticals, and fine chemicals. The concept of pipeless plants requires a renewed momentum to explore if they could become competitive. Unlike in the literature, where researchers have presented different aspects of scheduling models for pipeless plants through different models, in this work the focus is to develop a unified/generalized approach whereby the advancements in the batch scheduling literature can be readily extended to pipeless plants. We explore how batch scheduling models can be extended and generalized for the optimal operation of pipeless plants with fixed design, layout, and routing aspects. The important modifications and additions made to the batch scheduling models for handling scheduling of pipeless plants include: (i) modifications in state−task−network representation to bring in vessel, product, and equipment identities, leading to a "generalization" of models for batch and pipeless plants; (ii) treatment of moveable vessels as states, and not as separate resources, which are consumed only by the first unit and subsequently released only by the last unit in the production sequence for each product; and (iii) elimination of material balances and batch size aspects to simplify the models and reduce the problem size. Emphasis has been laid on development of a systematic procedure for effective STN representation for pipeless plants leading to unification of scheduling models for batch plants and pipeless plants. Two scheduling models are presented with varying problem size and complexity to explore the best suitable model for the optimal operation of pipeless plants. The proposed models have been validated on two benchmark problems, drawn from the literature, involving multiproduct and multipurpose plant features.

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Layout Aspects of Pipeless Batch Plants

Cited by 14 publications

References 25 publications

The use of computer aided techniques for revere osmosis desalination layout design

The use of computer aided techniques for revere osmosis desalination layout design

A Scheduling Model Framework for Crane-Assisted Pipeless Process Plants

Generalization of Scheduling Models for Batch Plants and Pipeless Plants

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