An optimization-based operability framework for process design and intensification of modular natural gas utilization systems

Carrasco, Juan C.; Lima, Fernando V.

doi:10.1016/j.compchemeng.2016.12.010

Cited by 28 publications

(41 citation statements)

References 40 publications

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“…The functions

{boldh}_{1}

and

{boldh}_{2}

include the process constraints, for example, associated with production and safety specifications. The model structure M can be defined by first‐principles or process simulator runs (e.g., in Aspen Plus ® ) to obtain the relationships between input and output spaces …”

Section: Process Operability Backgroundmentioning

confidence: 99%

“…Process operability was proposed as a method that can verify the ability of an available input set (AIS) to reach an achievable output set (AOS) that considers production targets, through a linear/nonlinear mapping determined by first‐principles models . Recent efforts in process operability have been focused on the calculation of the desired input set (DIS) for process design and intensification of natural gas utilization processes toward modular designs . However, there is still a gap in terms of problem dimensionality that nonlinear operability methods can handle, due to the computational time limitations associated with operability calculations that increase with system dimensionality.…”

Section: Introduction and Prior Workmentioning

confidence: 99%

“…A laboratory‐scale membrane reactor (MR) for the direct methane aromatization (DMA) and a simulated large‐scale natural gas combined cycle (NGCC) system are addressed in order to produce design conditions to enable process intensification toward modularity. The main contributions of this article correspond to: (1) the improvement of the bilevel optimization framework previously introduced, in terms of computational efficiency, by performing mathematical manipulations in the objective function; (2) the development of an operability framework employing parallel programing tools to efficiently tackle computational time challenges; and (3) the production and assessment of intensified/modular designs for natural gas utilization processes.…”

Section: Introduction and Prior Workmentioning

confidence: 99%

“…In process operability, bilevel optimization concepts were introduced to enable operability calculations in a single nested optimization problem, considering defined process design constraints, target specifications, performance levels, and intensification targets . This bilevel optimization‐based operability framework allowed the calculation of the feasible input points in the DIS* from any DOS employing first‐principles models or process simulator runs to obtain the relationship between input and output spaces.…”

Section: Introduction and Prior Workmentioning

confidence: 99%

“…The connection between process integration and process intensification at the design stage was established using reaction‐separation‐recycle processes . An optimization‐based operability framework employing process intensification concepts toward modularity of natural gas utilization systems was also proposed . This framework was applied to low‐dimensional case studies related to a DMA‐MR and an NGCC plant; however, there is still a gap related to the extension of the nonlinear operability calculations from low‐dimensional to high‐dimensional systems.…”

Section: Introduction and Prior Workmentioning

confidence: 99%

See 4 more Smart Citations

Bilevel and parallel programing‐based operability approaches for process intensification and modularity

Carrasco

Lima

2018

AIChE Journal

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Process operability emerged in the last decades as a powerful tool for the design and control of chemical processes. Recent efforts in operability have been focused on the calculation of the desired input set for process design and intensification of natural gas utilization applications described by nonlinear models. However, there is still a gap in terms of problem dimensionality that nonlinear operability methods can handle. To fill this gap, in this article, the incorporation of bilevel and parallel programing approaches into classical process operability concepts is discussed. Results on the implementation of the proposed method show a reduction in computational time up to two orders of magnitude, when compared to the original results without parallelization. These results could be extrapolated for use in a supercomputer as presented in the computational time analysis performed. In terms of intensification, the proposed approach can produce a natural gas combined cycle plant modular design with a dramatic reduction in size, from the original 400 to 0.11 MW, while still keeping the high net plant efficiency. This approach thus provides a computationally efficient framework for process intensification of high-dimensional nonlinear energy systems toward modularity. The proposed approach also enables the verification of a modular design and conditions that can be obtained according to economic and physical constraints associated with a specific natural gas well production.

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“…The functions

{boldh}_{1}

and

{boldh}_{2}

Section: Process Operability Backgroundmentioning

confidence: 99%

Section: Introduction and Prior Workmentioning

confidence: 99%

Section: Introduction and Prior Workmentioning

confidence: 99%

Section: Introduction and Prior Workmentioning

confidence: 99%

Section: Introduction and Prior Workmentioning

confidence: 99%

See 3 more Smart Citations

Bilevel and parallel programing‐based operability approaches for process intensification and modularity

Carrasco

Lima

2018

AIChE Journal

Self Cite

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Computer‐aided process intensification: Challenges, trends and opportunities

2019

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Computer‐aided process intensification of natural gas to methanol process

Monjur

Hasan

2022

AIChE Journal

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The recent revolution in shale gas has presented opportunities for distributed manufacturing of key commodity chemicals, such as methanol, from methane. However, the conventional methane‐to‐methanol process is energy intensive which negatively affects the profitability and sustainability. We report an intensified process configuration that is both economically attractive and environmentally sustainable. This flowsheet is systematically discovered using the building block‐based representation and optimization methodology. The new process configuration utilizes membrane‐assisted reactive separations and can have as much as 190% higher total annual profit compared to a conventional configuration. Additionally, it has 57% less CO2‐equivalent greenhouse gas emission. Such drastic improvement highlights the advantages of building block‐based computer‐aided process intensification method.

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An optimization-based operability framework for process design and intensification of modular natural gas utilization systems

Cited by 28 publications

References 40 publications

Bilevel and parallel programing‐based operability approaches for process intensification and modularity

Bilevel and parallel programing‐based operability approaches for process intensification and modularity

Computer‐aided process intensification: Challenges, trends and opportunities

Computer‐aided process intensification of natural gas to methanol process

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