Kinetic, energetic and exergetic approach to the methane tri-reforming process

Díez-Ramírez, J.; Dorado, Fernando; Martínez-Valiente, A.; García-Vargas, Jesús Manuel; Sánchez, Paula

doi:10.1016/j.ijhydene.2016.04.229

Cited by 38 publications

(11 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The study of the tri-reforming has also been carried out from the point of view of the chemical process simulators by different authors. In a previous work [18], we reported energetic and exergetic analyses that were applied to the methane tri-reforming process in order to assess the suitability of this reaction for the production of syngas. It was observed that the reactor was the component where most of the exergy was destroyed.…”

Section: Introductionmentioning

confidence: 99%

Process simulation and economic feasibility assessment of the methanol production via tri-reforming using experimental kinetic equations

Borreguero

Dorado

Capuchino-Biezma

et al. 2020

International Journal of Hydrogen Energy

Self Cite

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Process simulation and economic feasibility assessment of the methanol production via tri-reforming using experimental kinetic equations

Borreguero

Dorado

Capuchino-Biezma

et al. 2020

International Journal of Hydrogen Energy

Self Cite

View full text Add to dashboard Cite

“…The main advantages of this kind of reforming are as follows 29‐31 : It can reduce or even eliminate the need for energy to drive the reforming reactions. It decreases carbon deposition on the catalyst due to the presence of H 2 O and O 2 in the reforming process. It is possible to utilize the CO 2 contained in the plant exhaust gases without consuming energy for its separation. …”

Section: Tri‐reforming Process Analysismentioning

confidence: 99%

Thermoeconomic analysis and multi‐objective optimization of a solid‐oxide fuel cell plant coupled with methane tri‐reforming: Effects of thermochemical recuperation

et al. 2021

View full text Add to dashboard Cite

Summary An 80‐kW solid‐oxide fuel cell (SOFC)‐based power plant coupled with methane tri‐reforming is proposed and analyzed from the viewpoint of thermoeconomics. In order to integrate the SOFC power generation section with the external reformer, part of the exhaust gases from the afterburner is recycled and utilized as a reformer agent in the reactor. The main challenge in performing the economic analysis is the determination of the costs associated with the tri‐reforming process, in particular the reactor cost. To accomplish this, a mathematical procedure is suggested and applied for a fixed‐bed reactor based on both the chemical equilibrium and chemical kinetics describing the tri‐reforming process. The effects on system performance of important design parameters, including current density, SOFC operating temperature, and exhaust gas recirculation (EGR) percentage, are investigated. The results indicate that system performance is enhanced by using lower values of current density and higher values of SOFC operating temperature. In addition, considering the thermal and environmental performance of system as criteria, the use of EGR is not recommended. However, as the EGR percentage increases, the product unit cost decreases, making EGR advantageous from an economic perspective.

show abstract

“…In particular, some authors also performed this kind of analysis in steam methane reforming. Martínez-Valiente et al [10] developed a kinetic, energetic and exergetic approach to tri-reform methane. They found that the chemical reactors in the process were the units in which most exergy was destroyed.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, an energetic analysis of the simulation process could provide an insight as to what the optimal values are for some key variables [5][6][7][8][9][10]. In this respect, a sensitivity and optimization analysis of the most important variables-the steam-to-carbon molar ratio and the reformer temperature-were performed.…”

Section: Introductionmentioning

confidence: 99%

Exergetic and Economic Improvement for a Steam Methane-Reforming Industrial Plant: Simulation Tool

2020

Self Cite

View full text Add to dashboard Cite

Steam methane reforming (SMR) for hydrogen production was studied by simulating the reformer and pre-reformer sections. This simulation was validated by using available data taken from a real industrial plant, which enabled precise correlations with the real industrial process to be found. Moreover, the influence of the molar ratio between the raw materials (steam-to-carbon molar ratio, S/C) and the reformer outlet temperature (Tcc) was studied. The energy requirements for the reforming reaction increased with the S/C ratio. The energy needed for developing the reforming reaction also increased with Tcc, but the hydrogen yield when operating with a high S/C ratio and Tcc increased. In addition, an exergetic analysis was carried out to identify exergy losses in the SMR process, and most were destroyed in the chemical reactors. Increasing the combustion air flow was proposed for finding an optimum value for exergetic efficiency in the process, thereby reducing fuel consumption. Finally, there was a study into the economic viability of this investment, with a reduction of 22% in utility costs with the optimum exergetic value.

show abstract

Kinetic, energetic and exergetic approach to the methane tri-reforming process

Cited by 38 publications

References 18 publications

Process simulation and economic feasibility assessment of the methanol production via tri-reforming using experimental kinetic equations

Process simulation and economic feasibility assessment of the methanol production via tri-reforming using experimental kinetic equations

Thermoeconomic analysis and multi‐objective optimization of a solid‐oxide fuel cell plant coupled with methane tri‐reforming: Effects of thermochemical recuperation

Exergetic and Economic Improvement for a Steam Methane-Reforming Industrial Plant: Simulation Tool

Contact Info

Product

Resources

About