On the Use of Active Pre-chambers and Bio-hybrid Fuels in Internal Combustion Engines

Burkardt, Patrick; Fleischmann, M.; Wegmann, Tim; Braun, Marius; Knoll, J. M.; Schumacher, Leif; Lehn, Florian vom; Lehrheuer, Bastian; Meinke, Matthias; Pitsch, Heinz; Kneer, Reinhold; Schröder, Wolfgang; Pischinger, Stefan

doi:10.1007/978-981-16-8717-4_9

Cited by 11 publications

(5 citation statements)

References 52 publications

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“…The combination of bio‐ and chemocatalysis to integrate the conversion of biomass and CO 2 for low‐carbon, low‐emission fuels and “bio‐hybrid” 44, 45 production routes is explored 46, i.a., as part of the cluster of excellence The Fuel Science Center at RWTH Aachen University (FSC) 47, 48.…”

Section: Integrated Conversion Of Biomass and Co2 With A Combination ...mentioning

confidence: 99%

“…The combination of bio-and chemocatalysis to integrate the conversion of biomass and CO 2 for low-carbon, low-emission fuels and ''bio-hybrid'' [44,45] production routes is explored [46], i.a., as part of the cluster of excellence The Fuel Science Center at RWTH Aachen University (FSC) [47,48]. The production of bioethanol is fast with > 1 g L -1 h -1 , efficient with > 90 % theoretical yield, and the product can accumulate up to 150 g L -1 , facilitating production [49].…”

Section: Integrated Conversion Of Biomass and Co 2 With A Combination...mentioning

confidence: 99%

“…Thus, by combining different catalytic strategies, novel production routes can open up, minimizing downstream costs and making green biomanufacturing more attractive. These biofuels can be developed even further, by widening the scope to incorporate CO 2 and CO 2 -derived molecules [48]. As described above, organometallic catalysis with CO 2 integration is a longstanding concept [13].…”

Section: Integrated Conversion Of Biomass and Co 2 With A Combination...mentioning

confidence: 99%

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Three Sides of the Same Coin: Combining Microbial, Enzymatic, and Organometallic Catalysis for Integrated Conversion of Renewable Carbon Sources

Mengers

Guntermann

Westarp

et al. 2022

Chemie Ingenieur Technik

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All catalysts have unique abilities. This is especially true for microbial, enzymatic, and organometallic catalysis, which are often seen as competitive approaches preventing the exploitation of their complementarity. An increasing number of examples show, how using the complete catalytic spectrum can open roads from new substrates to new products. C1‐compounds such as formate, formaldehyde, methanol, or methane from CO2 in combination with green H2 are likely to be future sources of carbon feedstock. This short review highlights how combinations of different catalyst types can facilitate integrated reaction sequences with biogenic substrates to form “bio‐hybrid” fuels and products.

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Section: Integrated Conversion Of Biomass and Co2 With A Combination ...mentioning

confidence: 99%

Section: Integrated Conversion Of Biomass and Co 2 With A Combination...mentioning

confidence: 99%

Section: Integrated Conversion Of Biomass and Co 2 With A Combination...mentioning

confidence: 99%

See 1 more Smart Citation

Three Sides of the Same Coin: Combining Microbial, Enzymatic, and Organometallic Catalysis for Integrated Conversion of Renewable Carbon Sources

Mengers

Guntermann

Westarp

et al. 2022

Chemie Ingenieur Technik

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“…4,5 Sustainably produced fuels, i.e., e-fuels, biofuels, or biohybrid fuels, can prot from the current fuel infrastructure and eet, while maintaining the benecial high energy content of the fossil counterparts. [6][7][8][9] Industrial biotechnology has the potential to enable the transformation of traditional petroleum-based value chains to a sustainable bioeconomy relying on biomass, CO 2 , green H 2 , and industrial side streams as carbon sources. [10][11][12][13] Catalysts such as microorganisms can utilize these renewable, non-edible feedstocks to synthesize valueadded substances such as biofuels, bioplastics, organic solvents, and biosurfactants in the declining order of the market size.…”

Section: Introductionmentioning

confidence: 99%

Methyl ketones: a comprehensive study of a novel biofuel

Grütering,

Honecker,

Hofmeister

et al. 2024

Sustainable Energy Fuels

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“…These results are in good agreement with earlier investigations. [5][6][7] Thus, if ultra-lean engine operation is targeted with new combustion concepts, 8 which could be further extended with alternative fuels, 9 then solutions must be found to mitigate the increasing hydrocarbon emissions according to achieve future emission limits. 10 This applies in particular to the higher alkane emissions at lean engine operation conditions.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the near-wall gas composition in SI-engines using fast gas sampling

Fischer

Lehrheuer

Pischinger

2023

International Journal of Engine Research

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Future internal combustion engines using novel fuels and combustion systems have the potential to achieve ultra-high efficiency and lowest pollutant emissions to comply with future regulatory requirements. Realizing indicated efficiencies over 50% with ultra-lean low temperature combustion face new challenges. To meet this goal, hydrocarbon (HC) and carbon monoxide (CO) emissions need to be reduced significantly further. To do this, knowledge must be gained about how the operation regime of the engine affects the HC and CO emissions. Since these emissions partly originate from areas where flame quenching occurs, an investigation of the gases near the wall is of interest. To this end a fast gas sampling method is being developed to extract and analyze the gas from the combustion chamber. The used fast gas sampling valve from Kistler enables sampling durations of less than 1 ms. Fourier-transform-infrared spectroscopy and a fast mass spectroscopy allow the determination of the sample composition. The valve is positioned inside the cylinder head of a single cylinder engine between intake and exhaust valves. In order to assess the effects of engine operating conditions on the formation of HC and CO at the cylinder walls, the measurement uncertainty of the setup must be evaluated. Since the combustion process is subject to cyclic variations, the evaluation of only a few individual measurements is not meaningful. Therefore, mean values are determined from the evaluation of several measurements not performed consecutively. By examining the mean and standard deviation of these measurements for each species, one can determine a measurement error. In comparison, lean operation with RON95E10 fuel at an IMEP = 12 bar and an engine speed of n = 2000 1/min shows a significant reduction in intermediate hydrocarbon species such as acetylene and a significant increase in fuel species such as ethanol compared to stoichiometric operation.

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On the Use of Active Pre-chambers and Bio-hybrid Fuels in Internal Combustion Engines

Cited by 11 publications

References 52 publications

Three Sides of the Same Coin: Combining Microbial, Enzymatic, and Organometallic Catalysis for Integrated Conversion of Renewable Carbon Sources

Three Sides of the Same Coin: Combining Microbial, Enzymatic, and Organometallic Catalysis for Integrated Conversion of Renewable Carbon Sources

Methyl ketones: a comprehensive study of a novel biofuel

Evaluation of the near-wall gas composition in SI-engines using fast gas sampling

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