Mapping and optimization of an industrial steam methane reformer by the design of experiments (DOE)

Quirino, Poliana P.S.; Amaral, André Furtado; Manenti, Flavio; Pontes, Karen Valverde

doi:10.1016/j.cherd.2022.05.035

Cited by 16 publications

(4 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Detailed information about the temperature and concentration allows one to understand transport phenomena in the reactor. 69,70 The pressure greatly affects the temperature and concentration in the reactor. Variations of the temperature and concentration will lead to the transport of energy and species present.…”

Section: Resultsmentioning

confidence: 99%

“…The study of the effect of pressure on the temperature and concentration is important to understand and control the reactions involved in the oxidation and reforming processes. Detailed information about the temperature and concentration allows one to understand transport phenomena in the reactor. , The pressure greatly affects the temperature and concentration in the reactor. Variations of the temperature and concentration will lead to the transport of energy and species present.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Investigation of the Transport Phenomena in Microchannel Steam Reforming Reactors for Hydrogen Production

Chen

2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The fundamental transport phenomena in microchannel steam reforming reactors for hydrogen production are studied using dimensionless numbers. Numerical simulations are performed using chemical kinetics coupled with fluid mechanics to study different phenomena that lead to transport. The dimensionless numbers in transport phenomena are principally analyzed to provide insight into the reaction behaviors and characteristics. The effects of reaction pressure, catalyst porosity, and inlet Reynolds number are evaluated to understand the physical and chemical processes involved in the systems. The results indicate that hydrogen productivity is favored kinetically at higher pressures, but high process efficiency is difficult to achieve. Momentum diffusivity dominates the diffusion behavior, and heat diffuses slowly. Catalyst porosity is vital to ensuring effective operation. Higher levels of porosity allow more efficient hydrogen production and may resolve the problem of mass-transfer limitation. Convective rates dominate mass transfer, and diffusion contributes insignificantly. The tortuous Reynolds number depends heavily on the level of porosity. The Nusselt and Sherwood numbers depend heavily on the pressure but do not vary significantly with the Reynolds number.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Numerical Investigation of the Transport Phenomena in Microchannel Steam Reforming Reactors for Hydrogen Production

Chen

2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…-15 - The quadratic polynomial model can be used to approximate the function [40,41], which can be written as:…”

Section: Modeling Of the Relationship Between The Temperature And The...mentioning

confidence: 99%

Construction of digital twin of the space furnace based on thermal simulation and data-driven thermophysical parameter identification technology

Huang,

2023

J. Inst.

View full text Add to dashboard Cite

This study aims to demonstrate the construction of a simulation-based digital twin of a space furnace. During simulation processes, uncertainties in the results can arise from variations in parameter inputs and the utilization of different simulation models. Moreover, simulating complex models often demands substantial computational resources. To effectively achieve the desired digital twin effect, it is crucial to employ specific measures that address these challenges. In this paper, we propose a layered meshing strategy that aims to strike a balance between simulation accuracy and computational costs. By implementing this strategy, we can optimize the mesh design and achieve accurate results while efficiently managing computational resources. The performance of the meshing strategy is evaluated based on three indices: orthogonal quality, skewness, and aspect ratio. To enhance the repeatability of simulation results, we employ two key methods: model selection and thermophysical parameter identification. Laminar and discrete ordinate (DO) models are selected by comparing simulation results from different model combinations. A data-driven method is proposed to identify the thermophysical parameters when prior knowledge is lacking. To assess the validity of the proposed method, simulation results are compared with state-of-art methods. Results show satisfactory agreement between measured temperatures and simulated temperatures, with the relative error being approximately 1% at the temperature control thermocouples. The proposed thermophysical identification method achieves equivalent or better error performance compared to cumbersome manual adjustment and instrument measurement methods, which reduces experimental risks and costs.

show abstract

“…Several studies show that the Ni-Cu alloy presents better results when compared to Ni monometallic catalysts [119][120][121][122][123], and like Ni, Cu has low costs compared to noble metals. Ni and Cu have a face-centered cubic (fcc) crystalline structure and a similar atomic radius with lattice parameters a = 3.524 Å and 3.615 Å, respectively.…”

Section: Ni and Transition Metalsmentioning

confidence: 99%

Overview of Ni-Based Catalysts for Hydrogen Production from Biogas Reforming

Manfro,

Souza

2023

Catalysts

View full text Add to dashboard Cite

The environmental impact and the forecasted scarcity of fossil fuels have intensified research on renewable energy sources. Hydrogen is a versatile energy carrier that can be produced from renewable sources and plays a key role in achieving global decarbonization targets. Biogas, produced by anaerobic digestion of organic compounds, is rich in methane and carbon dioxide and can be used to produce renewable hydrogen by dry reforming. This review focuses on the recent advances in Ni-based catalysts for biogas reforming. The effect of supports and promoters on catalyst activity, stability, and resistance to carbon deposition will be systematically discussed. This review provides a better understanding of the influence of the synthesis method, metal-support interaction, acid/base sites, and oxygen mobility on catalytic activity. Special emphasis will be given to the development of core-shell structure catalysts and bimetallic catalysts of Ni with other transition metals and noble metals.

show abstract

Mapping and optimization of an industrial steam methane reformer by the design of experiments (DOE)

Cited by 16 publications

References 49 publications

Numerical Investigation of the Transport Phenomena in Microchannel Steam Reforming Reactors for Hydrogen Production

Numerical Investigation of the Transport Phenomena in Microchannel Steam Reforming Reactors for Hydrogen Production

Construction of digital twin of the space furnace based on thermal simulation and data-driven thermophysical parameter identification technology

Overview of Ni-Based Catalysts for Hydrogen Production from Biogas Reforming

Contact Info

Product

Resources

About