Combustion behavior and soot formation/oxidation of oxygenated fuels in a cylindrical constant volume chamber

Iannuzzi, Stefano; Barro, Christophe; Boulouchos, Konstantinos; Burger, J.

doi:10.1016/j.fuel.2015.11.060

Cited by 115 publications

(57 citation statements)

References 37 publications

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“…Meanwhile, TRI decomposition in CH 2 Cl 2 revealed that TRI conversion was ar esult of the presence of Brønsted acid sites andt hat addition of low-to-moderate Sn concentration did not improve TRI conversion.Additionally,detailed investigation into R1 revealed that, despite their very different activity,t he intermediate/product ratio did not vary during the course of the reaction among the catalysts (i.e.,H -Beta-P,2 -DeAl, and partially dealuminated,S n-modified samples). The possibility that TRI was inserted into OME 1 was also discarded based on the comparison of OME 4 production with OME [2][3][4][5][6][7][8] .…”

Section: Discussionmentioning

confidence: 99%

“…in which rate max is the maximum value of the derivative of [OME [2][3][4][5][6][7][8] versus time [mol L À1 s À1 ], C ac is the acid sites concentration of the catalyst [mol g À1 ], and C cat is the catalyst concentration [g L À1 ].…”

Section: Materials Characterizationmentioning

confidence: 99%

“…Diesel consumption is expected to growbetween 46 and 200 %c omparedt oi ts 2010 level during the next four decades, according to the World EnergyC ouncil. [4][5][6] Moreover,t heir usage in diesel-powered cars only require slight engine modifications. In this context,p olyoxymethylene dimethyl ethers (OME) have recently gained attention as an ew type of Diesel additive or substitute owing to their appealing properties.…”

Section: Introductionmentioning

confidence: 99%

“…[2,3] Upon blending with Diesel fuel they reducet he level of soot emission with ac oncomitanti ncrease in combustion efficiency. [4][5][6] Moreover,t heir usage in diesel-powered cars only require slight engine modifications. [4] Finally,t hey can be produced from methanol (MeOH), which could be af uture platform molecule synthesized from CO 2 or biomass.…”

Section: Introductionmentioning

confidence: 99%

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Nature of Synergy between Brønsted and Lewis Acid Sites in Sn–Beta Zeolites for Polyoxymethylene Dimethyl Ethers Synthesis

et al. 2019

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The role of Lewis and Brønsted acid sites and their potential synergy remains ambiguous for the production of polyoxymethylene dimethyl ethers (OME), which are suitable as a Diesel substitute. Here, this synergistic effect was investigated by using a series of beta polymorph A (BEA) zeolites with various degrees of Brønsted and Lewis acidity. Lewis acidity was introduced in dealuminated zeolites by Sn grafting in dichloromethane. These sites were only active in paraformaldehyde decomposition, OME growth, and acetalization. The Brønsted acid sites arising from bridging hydroxyl groups were active for all reaction steps, and notably for trioxane ring‐opening and dissociation to formaldehyde (FA), which did not occur on the Lewis acid sites. Presence of both Lewis and Brønsted acid sites led to a four‐fold increase in turnover frequency and a significant decrease of byproduct formation compared with the parent zeolite during OME synthesis from dimethoxymethane and trioxane. The synergistic effect between both types of acid sites is explained by FA insertion on Lewis acid sites leading to OME growth. Interaction between tetrahedral Sn and the carbonyl group of FA resulted in an activated carbonyl bond, which was likely the initial step for insertion of FA into OME.

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Section: Discussionmentioning

confidence: 99%

Section: Materials Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nature of Synergy between Brønsted and Lewis Acid Sites in Sn–Beta Zeolites for Polyoxymethylene Dimethyl Ethers Synthesis

et al. 2019

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“…This indeed possible [17] when we use the insights from mechanistic studies [18] of combustion science. A co-condensation product of methanol with formaldehyde known as the family of oxymethylene Ethers (OME) is a perfect surrogate [19] for Diesel with the only disadvantage of having ca. half the energy density than Diesel.…”

Section: -Introductionmentioning

confidence: 99%

Chemical energy storage: Part of a systemic solution

Schlögl

2017

EPJ Web Conf.

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Summary. -This paper is a primer into concepts and opportunities of chemical energy storage. Starting from the quest for decarbonisation we reveal the possibilities of chemical energy storage. We briefly discuss the critical role of catalysis as enabling technology. We concentrate on options of large-scale production of chemicals from CO2 and green hydrogen. We discuss one potential application of fueling future combustion engines that could run with minimal regulated emissions without exhaust purifications and legal tricks.

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Power‐to‐Fuels

2023

Converting Power Into Chemicals and Fuels

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Combustion behavior and soot formation/oxidation of oxygenated fuels in a cylindrical constant volume chamber

Cited by 115 publications

References 37 publications

Nature of Synergy between Brønsted and Lewis Acid Sites in Sn–Beta Zeolites for Polyoxymethylene Dimethyl Ethers Synthesis

Nature of Synergy between Brønsted and Lewis Acid Sites in Sn–Beta Zeolites for Polyoxymethylene Dimethyl Ethers Synthesis

Chemical energy storage: Part of a systemic solution

Power‐to‐Fuels

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