Influence of flue gas parameters on conversion rates of honeycomb catalysts

Ryšavý, Jiří; Horák, Jiří; Hopan, František; Kuboňová, Lenka; Krpec, Kamil; Molchanov, Oleksandr; Garba, Martin; Ochodek, Tadeáš

doi:10.1016/j.seppur.2021.119491

Cited by 12 publications

(5 citation statements)

References 24 publications

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“…Catalyst caused a decrease by 83% in comparison to the methanol combustion (with and without the catalyst) and also caused a decrease by 90% in comparison to the ethanol/water mixture (80/20) combustion (with and without the catalyst). The reached values of so-called conversion rates, caused by the presence of the catalyst, corresponds with the conversion rates obtained by similar, precious-metal-based catalysts application in the FG formed during the solid biomass combustion purification, as was present by Ryšavý et al [22], Klauser et al [30] and Reichert et al [31].…”

Section: Resultssupporting

confidence: 84%

“…Apart from fuel conversion [19], nitrous oxide decomposition [20] or CO 2 reduction [21], catalytic substances can be also applied for FG purification from the products of incomplete combustion as well, making any burner design improvement unnecessary. As was proved by Ryšavý et al [22], conversion rates of the CO by Pt and Pd based catalyst in real FG formed during the wood combustion are strongly connected with FG parameters, especially the FG temperature. According to results achieved by Ryšavý et al [5], there is a presumption that the FG temperature of the EB will be sufficient for an oxidation catalyst operation.…”

Section: Introductionmentioning

confidence: 72%

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Influence of fuel mixture and catalyst on the ethanol burner flue gas composition

Ryšavý

Horák²,

Krpec³

et al. 2022

Energy Reports

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Section: Resultssupporting

confidence: 84%

Section: Introductionmentioning

confidence: 72%

Influence of fuel mixture and catalyst on the ethanol burner flue gas composition

Ryšavý

Horák²,

Krpec³

et al. 2022

Energy Reports

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“…Extensive research on catalytic promoter´s effect on the FTS conversion was done by Barrios et al [25]. Apart from the FTS, catalysts are also applied in denitrification [26] or flue gas purification processes [27,28]. During the FTS process, numerous chemical reactions take place, defined mainly by the following equations ( 1…”

Section: Introductionmentioning

confidence: 99%

Long-term performance of Co catalyst and Fischer-Tropsch synthesis setup under realistic conditions

Čespiva,

Charvát,

Skřínský

et al. 2023

Preprint

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Background Despite the sufficient description of the various catalytic processes, the data sets often lack a long-term oriented approach, thus examining unstable and temporary processes. Results In this study, an Al2O3-supported Co catalyst was applied in a small-scale Fischer-Tropsch synthesis under realistic conditions. A long-term performance was examined and evaluated. A tedious stabilisation regime was observed, taking around 78 hours of time-on-stream before the process was stabilised on a greater magnitude. The quantitative analysis showed significant differences in liquid production, where unstable process provided more excellent gas-to-liquid conversion, however, the selectivity of water was significant. The stabilised regime, on the other hand, performed well in terms of hydrocarbon production with 35%wt. share in the product. Conclusions This study points out the importance of proper stabilisation in the catalytic processes, which may require reasonable time in pilot and industrial-scale appliances.

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“…Produced chars find application in a fluidized bed combustor, generating the heat necessary for the process. CaO has been used as a catalyst in many different applications, such as oxidation of unburned pollutants in the flue gas [24], Fisher Tropsch synthesis [25], gasification [26], production of syngas from pyrolysis [27], and fast pyrolysis [22,[28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Influence of Hydrothermal Carbonization on Catalytic Fast Pyrolysis of Agricultural Biomass

et al. 2023

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Fast pyrolysis has been a subject of intensive research thanks to its ability to produce high yields of liquid products, known as pyrolysis oil. This is an important renewable intermediate which could be used for the subsequent production of fuels and chemicals. For fossil-based materials, pyrolysis oil can provide circular building blocks. Furthermore, direct use of pyrolysis oil in gas turbines has also been proven feasible. However, a relatively high oxygen content in raw biomass has detrimental effects on the quality of such oil. This work proposes hydrothermal carbonization as a valorization technique, beneficial from the point of view of subsequent fast pyrolysis. Within the scope of this work, the influence of the parameters of hydrothermal carbonization (HTC) on the kinetics of fast pyrolysis of agricultural biomass (miskanthus), as well as the influence of in situ use of a CaO catalyst, is investigated. Kinetics is investigated using a novel type of thermogravimetric analyzer (TGA) called Cyclonic TGA, which is able to achieve heating rates similar to a real fast pyrolysis process. Moreover, the influence of HTC on the removal of part of its inorganic constituents is determined within the scope of this work.

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Influence of flue gas parameters on conversion rates of honeycomb catalysts

Cited by 12 publications

References 24 publications

Influence of fuel mixture and catalyst on the ethanol burner flue gas composition

Influence of fuel mixture and catalyst on the ethanol burner flue gas composition

Long-term performance of Co catalyst and Fischer-Tropsch synthesis setup under realistic conditions

Influence of Hydrothermal Carbonization on Catalytic Fast Pyrolysis of Agricultural Biomass

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