Applicability of dimethyl ether (DME) in a compression ignition engine as an alternative fuel

Park, Su Han; Lee, Chang Sik

doi:10.1016/j.enconman.2014.06.051

Cited by 330 publications

(109 citation statements)

References 120 publications

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“…As an alternative fuel, DME can be used to address energy security, energy conservation, and environmental concerns about the need for low carbon emissions (Thomas et al, Feng, 2014;Semelsberger et al, 2006). On the other hand, the value of the vapor pressure of DME is almost same with LPG, and DME can be handled as a liquid phase fuel when lightly pressurized (Park & Lee, 2014). The application of Saputra et al…”

Section: Introductionmentioning

confidence: 99%

Degradation Characteristics of Vulcanized Natural Rubber by Dimethyl Ether through Filler and Plasticizer Composition Variations

Saputra¹,

Johan

Sari

et al. 2016

IJTech

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Dimethyl ether (DME) is a type of renewable energy that could replace the use of fossil fuel in Indonesia. Nevertheless, DME can cause degradation of rubber-based materials. Therefore, the performance of rubber that has been degraded by DME must be improved. This research study aims are to determine the degradation characteristics of modified vulcanized natural rubber in a DME environment. The effect of the filler (carbon black) and plasticizer (minarex-B) components of vulcanized natural rubber was examined. The vulcanized rubber samples were comprised of 10, 30, and 60 parts per hundred rubbers (phr) of filler and 0, 10 and 20 phr of plasticizer. The degradation of the mass and mechanical properties of the rubber were investigated. Degradation testing was conducted by immersing the samples inside a pressure vessel that was filled with the liquid phase of DME. The results indicate that the increasing of the filler composition reduces the impact of degradation, while the increasing of the plasticizer composition has the opposite effect. The plasticizer is needed to distribute the filler to all parts of the rubber. Consequently, a filler composition of 30 phr and a plasticizer composition of 10 phr provide a vulcanized natural rubber with optional protection against the degradation caused by DME. The characteristics of natural rubber, as measured by Fourier Transform Infra-Red Spectroscopy (FTIR) proved that DME does not damage the structure of the polymer chains, although DME may react with some ingredients in the rubber that have a similar polarity.

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Section: Introductionmentioning

confidence: 99%

Degradation Characteristics of Vulcanized Natural Rubber by Dimethyl Ether through Filler and Plasticizer Composition Variations

Saputra¹,

Johan

Sari

et al. 2016

IJTech

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“…Over the past few decades, DME usage has grown remarkably by its introduction as an LPG substitute/blendstock for household applications [1]. The pioneering collaborative research efforts by Haldor Topsøe, Amoco and Navistar International Corp. in the 1990s [2,3], drew a lot of attention to DME as a promising alternative fuel for compression ignition engines, due to the high cetane number and low particulate matter emissions, which in turn enable achieving somewhat lower NO x emissions [4,5]. The conventional DME production route, i.e.…”

Section: Introductionmentioning

confidence: 99%

Direct dimethyl ether synthesis from synthesis gas: The influence of methanol dehydration on methanol synthesis reaction

et al. 2016

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Direct dimethyl ether (DME) synthesis from synthesis gas is studied with regard to potential effects of methanol dehydration on methanol formation and copperbased catalyst performance. For this, the influence of the operating conditions (space velocity, temperature, pressure, time-on-stream and syngas composition) on activity, selectivity and stability of the catalyst was studied and compared for methanol synthesis and direct DME synthesis. The advantage of the direct over the two-step DME synthesis is apparent at conditions where syngas conversion to methanol is thermodynamically limited. However, under the applied operating conditions, results suggest that combining methanol synthesis and dehydration has a negative effect on the methanol formation kinetics. The origin of the observed phenomena is investigated by varying dehydration catalyst and by introducing dehydration products (DME and water) into the methanol synthesis feed. Choice of the solid acid catalyst does not seem to affect methanol formation, and DME is also found to be practically inert over the methanol synthesis catalysts. Water injection, on the other hand, led to a significant decrease in the methanol synthesis rate. Thus, formation of an additional amount of water through methanol dehydration might be an explanation for the lower methanol formation rate in the direct DME synthesis.

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“…Park and Lee [6,10], Thomas et al. [11], and Arcoumanis et al [12] summarized the overall characteristics of DME combustion and emissions in a diesel engine, including fuel properties, spray and atomization.…”

Section: Introductionmentioning

confidence: 99%

Injection strategy for simultaneous reduction of NOx and soot emissions using two-stage injection in DME fueled engine

Park

Yoon²

2015

Applied Energy

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Applicability of dimethyl ether (DME) in a compression ignition engine as an alternative fuel

Cited by 330 publications

References 120 publications

Degradation Characteristics of Vulcanized Natural Rubber by Dimethyl Ether through Filler and Plasticizer Composition Variations

Degradation Characteristics of Vulcanized Natural Rubber by Dimethyl Ether through Filler and Plasticizer Composition Variations

Direct dimethyl ether synthesis from synthesis gas: The influence of methanol dehydration on methanol synthesis reaction

Injection strategy for simultaneous reduction of NOx and soot emissions using two-stage injection in DME fueled engine

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