Analysis of MTH-System (Methylcyclohexane-Toluene-Hydrogen-System) for hydrogen production as fuel for power plants

Zahid, Abdul Hannan; Amin, Naila; Nisar, Fahid; Saghir, Summaira

doi:10.1016/j.ijhydene.2020.08.248

Cited by 14 publications

(7 citation statements)

References 35 publications

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“…A microspores instrument ASAP 2020 (Micromeritics, Atlanta, GA, USA) and a Bruker D8 FOCUS diffractometer (Bruker, Karlsruhe, Germany) were used to analyze the pore structure and XRD patterns of the materials. The FTIR spectra and XPS profiles were measured by a Vector C 2023, 9, 121 3 of 11 22 Fourier-transform infrared spectrophotometer (Bruker, Fällanden, Switzerland) and a Kratos AXIS-ULTRA DLD multifunctional photoelectron spectrometer (Shimadzu, Kyoto, Japan), respectively. All the XPS peaks were calibrated with the C1s peak binding energy of 284.5 eV.…”

Section: Instrumentationsmentioning

confidence: 99%

“…Liquid organic hydrides (boiling points: 80-200 • C) have emerged as a promising hydrogen carrier owing to their easy achievement of hydrogenation and dehydrogenation, large hydrogen storage capacity (6-8%), high security during transportation, etc. [18][19][20][21] Methylcyclohexane (MCH) has been proposed as a potential and satisfactory candidate for liquid organic hydrides for its high reversibility and the low toxicity of the dehydrogenation product [22,23], which accelerates the dehydrogenation reaction process in the presence of Pt-based catalysts over appropriate supports [24]. It is vital for the supports to improve the activity and stability of the Pt-based catalyst [25][26][27][28][29][30], and carbon materials have been widely applied to promote the dispersion of Pt atoms, due to their large surface area and abundant oxygen-containing groups [31], including activated carbons [32], carbon filters [33], carbon nanotubes [34], and so on.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Carbon Nanotubes Derived from Waste Tire Pyrolytic Carbon and Their Application in the Dehydrogenation of Methylcyclohexane to Produce Hydrogen

Ye,

Liu,

Huang

et al. 2023

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The accumulation of waste tires has resulted in very urgent environmental problems. Pyrolysis has been regarded as a green eco-friendly technology to deal with waste tires, and it is vital to make use of the pyrolysis carbon. Herein, we propose a new way to utilize pyrolysis carbon, to prepare carbon nanotubes with the help of ferrocene. The optimal preparation processes were determined by optimizing the parameters including the solvent, temperature, time, etc. The results of scanning electron microscopy and transmission electron microscopy evidenced the successful formation of carbon nanotubes. Meanwhile, the Brunauer–Emmett–Teller (BET) method and N2-adsorption showed that the yielded carbon nanotubes featured a large surface area and abundant pore structure in comparison with the pyrolytic carbon. Finally, the as-prepared carbon nanotubes were applied as the supports for Pt-based catalysts for the dehydrogenation of methylcyclohexane to produce hydrogen. The results showed that the Pt/carbon-nanotubes catalyst exhibited the highest conversion of methylcyclohexane (28.6%), stability, and hydrogen evolution rate (336.9 mmol/gPt/min) compared to the resulting Pt/commercial-activated-carbon (13.6% and 160.2 mmol/gPt/min) and Pt/pyrolytic-carbon catalysts (0.19% and 2.23 mmol/gPt/min).

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Section: Instrumentationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication of Carbon Nanotubes Derived from Waste Tire Pyrolytic Carbon and Their Application in the Dehydrogenation of Methylcyclohexane to Produce Hydrogen

Ye,

Liu,

Huang

et al. 2023

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“…The Aspen HYSYS simulation model is used to determine the effect of various operating conditions on the performance of the packed-bed reactor and membrane reactor (Kim et al, 2018). Moreover, it is used to determine the future risk and uncertainty in prediction (Zahid et al, 2020). Techno-economic assessment is a methodological framework for examining the technical and economic performance of a process, product, or service and includes the study of the economic impact of technology.…”

Section: Techno-economic Performance Indicatormentioning

confidence: 99%

“…NPC was reduced by 0.9% due to the high cost of the electricity component. The output electricity cost is highly sensitive to the efficiency of the power plant (Zahid et al, 2020). Furthermore, lesser by-product yield is substantial from an economical perspective.…”

Section: Sensitivity Analysismentioning

confidence: 99%

A systematic review of the techno-economic assessment of various hydrogen production methods of power generation

et al. 2022

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Hydrogen is a low or zero-carbon energy source that is considered the most promising and potential energy carrier of the future. In this study, the energy sources, feedstocks, and various methods of hydrogen production from power generation are comparatively investigated in detail. In addition, this study presents an economic assessment to evaluate cost-effectiveness based on different economic indicators, including sensitivity analysis and uncertainty analysis. Proton exchange membrane fuel cell (PEMFCs) technology has the most potential to be developed compared to several other technologies. PEMFCs have been widely used in various fields and have advantages (i.e., start-up, zero-emissions, high power density). Among the various sources of uncertainty in the sensitivity analysis, the cost estimation method shows inflationary deviations from the proposed cost of capital. This is due to the selection process and untested technology. In addition, the cost of electricity and raw materials, as the main factors that are unpredictable.

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“…A variety of liquid organic hydrides have been developed with cyclohexane, methylcyclohexane (MCH), 1, 4-dimethylcyclohexane, decalin, and so on. Among them, MCH is the most promising LOH for its high reversibility, favorable theoretical hydrogen-storage capacity (6.2 wt%), and low toxic dehydrogenation product (i.e., toluene) with respect to benzene [10]. The dehydrogenation of MCH can be accelerated in the presence of catalysts with the active components (e.g., Pt and Pd) over appropriate supports.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Pt-Loaded Catalysts Supported on the Functionalized Pyrolytic Activated Carbon Derived from Waste Tires for the High Performance Dehydrogenation of Methylcyclohexane and Hydrogen Production

Wang

Liu

et al. 2022

Catalysts

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The pyrolytic activated carbon derived from waste tires (PTC) was functionalized to fabricate the high performance of Pt-based catalysts in the dehydrogenation of methylcyclohexane and hydrogen production. Structural characterizations evidenced that the modification partially influenced the surface area, the pore structure, and the oxygen-containing functional groups of the supports. The techniques of CO pulse, transmission electron microscopy, and hydrogen temperature-programmed reduction were utilized to investigate the dispersion degrees and particle sizes of the active component Pt, and its interaction with the various functionalized supports, respectively. The results manifested that Pt particles loaded on the functionalized PTC-S had the largest dispersion degree and the smallest size among those loaded on PTC and other functionalized PTC (i.e., PTC-K and PTC-NH). Finally, the Pt-based catalysts were successfully applied in the dehydrogenation reaction of methylcyclohexane to yield hydrogen. The results revealed that the Pt catalyst over the functional PTC-S support exhibited a more excellent conversion of methylcyclohexane (84.3%) and a higher hydrogen evolution rate (991.5 mmol/gPt/min) than the other resulting Pt-based catalysts.

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Analysis of MTH-System (Methylcyclohexane-Toluene-Hydrogen-System) for hydrogen production as fuel for power plants

Cited by 14 publications

References 35 publications

Fabrication of Carbon Nanotubes Derived from Waste Tire Pyrolytic Carbon and Their Application in the Dehydrogenation of Methylcyclohexane to Produce Hydrogen

Fabrication of Carbon Nanotubes Derived from Waste Tire Pyrolytic Carbon and Their Application in the Dehydrogenation of Methylcyclohexane to Produce Hydrogen

A systematic review of the techno-economic assessment of various hydrogen production methods of power generation

Fabrication of Pt-Loaded Catalysts Supported on the Functionalized Pyrolytic Activated Carbon Derived from Waste Tires for the High Performance Dehydrogenation of Methylcyclohexane and Hydrogen Production

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