A study on CO2 and CH4 conversion to synthesis gas and higher hydrocarbons by the combination of catalysts and dielectric-barrier discharges

Zhang, Kui; Mukhriza, Teuku; Liu, Xiaoteng; Greco, Pierpaolo; Chiremba, Elijah

doi:10.1016/j.apcata.2015.06.002

Cited by 46 publications

(48 citation statements)

References 56 publications

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“…Similar discrepancies have been observed for DRM in packed bed DBD plasma reactors. For instance, adding a packing has been reported to increase the conversion [17][18][19][20][21][22][23][24], while several other report a decrease in conversion of both CO 2 and CH 4 [24][25][26] and still other papers show only an effect on one of the two reacting gasses [12,23,27,28] (see Table 2). Moreover, also vast differences in selectivity are being described, even for similar packing materials, as detailed in Table 2.…”

Section: Of 32mentioning

confidence: 99%

“…Furthermore, very often catalytically activated packing materials are being introduced and discussed, without evaluating the impact of the non-activated packing on the DRM process [17][18][19][20][23][24][25]30,31], even though the latter can be expected to have an influence on the conversion and selectivity as well [12,13,32]. Indeed, in those papers where the packing materials are being studied with and without catalytic activation, an influence of the packing material itself can be observed [21,26,27,29,32].…”

Section: Of 32mentioning

confidence: 99%

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Altering Conversion and Product Selectivity of Dry Reforming of Methane in a Dielectric Barrier Discharge by Changing the Dielectric Packing Material

et al. 2019

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We studied the influence of dense, spherical packing materials, with different chemical compositions, on the dry reforming of methane (DRM) in a dielectric barrier discharge (DBD) reactor. Although not catalytically activated, a vast effect on the conversion and product selectivity could already be observed, an influence which is often neglected when catalytically activated plasma packing materials are being studied. The α-Al2O3 packing material of 2.0–2.24 mm size yields the highest total conversion (28%), as well as CO2 (23%) and CH4 (33%) conversion and a high product fraction towards CO (~70%) and ethane (~14%), together with an enhanced CO/H2 ratio of 9 in a 4.5 mm gap DBD at 60 W and 23 kHz. γ-Al2O3 is only slightly less active in total conversion (22%) but is even more selective in products formed than α-Al2O3. BaTiO3 produces substantially more oxygenated products than the other packing materials but is the least selective in product fractions and has a clear negative impact on CO2 conversion upon addition of CH4. Interestingly, when comparing to pure CO2 splitting and when evaluating differences in products formed, significantly different trends are obtained for the packing materials, indicating a complex impact of the presence of CH4 and the specific nature of the packing materials on the DRM process.

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Section: Of 32mentioning

confidence: 99%

Section: Of 32mentioning

confidence: 99%

Altering Conversion and Product Selectivity of Dry Reforming of Methane in a Dielectric Barrier Discharge by Changing the Dielectric Packing Material

et al. 2019

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“…DBD has been a subject of extensive research in plasma including ozone production [24] [25], ammonia decomposition [26], methane dry reforming [27], degradation of toluene [28]. The research on DBD plasma assisted FTS, however, is still limited.…”

Section: Fischer-tropsch Synthesis Performancementioning

confidence: 99%

The Application of Dielectric Barrier Discharge Plasma on Fischer-Tropsch Synthesis: A Review

Mukhriza

Oktarina

2021

JSE

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Fischer-Tropsch (FT) Synthesis has been widely known for centuries as the process of converting syngas to liquid fuels. Several reactors including Slurry bubble column, fluidized-bed, and fixed bed reactors have been used for FTS on an industrial scale. Although science has seen remarkable development in technology for FT synthesis, the industry still faces challenges in optimizations of process parameters and achieved desired selectivity. Extensive research has been continuously conducted to seek the best FT reactor offering heat uniformity and efficient heat transfer across the reactor to increase the catalytic activity and its lifetime. Dielectric Barrier Discharge (DBD) plasma has become one of the options to deal with these issues. This reactor work under low temperature delivers a synergistic effect between plasma and catalyst to break H2 and CO bond. DBD plasma is also suitable for feedstock with high H2/CO molar ratios. It is also found that FT catalyst such as cobalt catalyst used in DBD plasma was well dispersed on the support which in turn favour the selectivity toward liquid hydrocarbon.

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“…The combination of O ad and CO ad on the Ni catalyst could lead to CO 2 formation. The other reactions, including the reaction between CO and O ad , and the reaction between CO ad and O, may lead to the formation of CO 2[330]. Spencer et al[244] reported that the recombination of O radicals to O 2 prevails over the combination of CO with O radicals on various solid surfaces at low temperatures.Zeng et al[51] and Sentek et al[324] carried out DRM using a DBD reactor.…”

mentioning

confidence: 99%

A Review of Non-Thermal Plasma Technology: A novel solution for CO2 conversion and utilization

Adwek

Shen

Craven

et al. 2021

Renewable and Sustainable Energy Reviews

316

136

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Recently, carbon dioxide (CO 2 ) conversion into higher-value platform chemicals and synthetic fuels has drawn great attention as a result of global warming. Non-thermal plasma (NTP)-catalytic CO 2 conversion has emerged to significantly reduce the reaction temperature. However, this technology requires a paradigm shift in process design to enhance plasma-catalytic performance. CO 2 conversion using NTP and catalysts has great potential to increase reaction efficiencies due to the synergetic effects between the plasma and catalysts that can provide mutual improvement in their performances. It is crucial to present the recent progress in CO 2 conversion and utilization whilst specifying a research prospects framework and providing future research directions in both industries and laboratories.Herein, a review of encouraging research achievements in CO 2 conversion and utilization using NTP in recent years is provided. The topics reviewed in this work are recent progress in different NTP sources in relation to product selectivity, conversion, and energy efficiency; plasma-based CO 2 reactions and applications; CO 2 conversion integrated with CO 2 capture; and process development of NTP in terms of potential large-scale applications processes. The high market value of the possible products from the NTP process, including chemicals and fuels, make the commercialization of the process feasible. Developing a suitable catalyst with effective sensitivities and performance under intricate conditions can improve the selectivity of these carbon-based liquid chemicals. There is a need for more studies to be performed in this field.

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A study on CO2 and CH4 conversion to synthesis gas and higher hydrocarbons by the combination of catalysts and dielectric-barrier discharges

Cited by 46 publications

References 56 publications

Altering Conversion and Product Selectivity of Dry Reforming of Methane in a Dielectric Barrier Discharge by Changing the Dielectric Packing Material

Altering Conversion and Product Selectivity of Dry Reforming of Methane in a Dielectric Barrier Discharge by Changing the Dielectric Packing Material

The Application of Dielectric Barrier Discharge Plasma on Fischer-Tropsch Synthesis: A Review

A Review of Non-Thermal Plasma Technology: A novel solution for CO2 conversion and utilization

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