Introduction and advancement of a new clean global fuel: The status of DME developments in China and beyond

Fleisch, T. H.; Basu, Arunabha; Sills, R.A.

doi:10.1016/j.jngse.2012.05.012

Cited by 200 publications

(120 citation statements)

References 8 publications

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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].…”

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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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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“…DME can be produced from variety of sources such as natural gas, coal, and biomass. Worldwide DME production capacity and actual market use have been reported to be about 10 million metric tons per year and 3 million metric tons per year, respectively [2]. China is the leader country in DME production and use.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, more than 90% of DME produced in China is used as a LPG blend stock for domestic uses. Other leading markets for DME are; transportation fuel, fuel for power generation, and chemical feedstock for olefins and gasoline [2,3].…”

Section: Introductionmentioning

confidence: 99%

Effects of dimethyl ether on n-butane oxidation

Bekat

İnal

2014

Fuel

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h i g h l i g h t s" Effects of DME addition to n-butane oxidation were studied. " DME was found to decrease the formations of CO, aromatic species and PAHs. " DME addition increased the formations of formaldehyde and acetaldehyde. " Effects of equivalence ratio were investigated in fuel-rich conditions. " Increasing equivalence ratio increased the formations of aromatic and PAH species. a r t i c l e i n f o t r a c tDimethyl ether (DME) is the simplest ether and it is used as an alternative fuel or fuel additive to reduce toxic emissions from combustion processes. The effects of DME on n-butane oxidation were investigated for two different concentrations of DME in the fuel mixture (i.e., 20% and 50%) and two different fuel-rich equivalence ratios (i.e., 2.6 and 3.0) using detailed chemical kinetic modeling. Reactor model was selected as atmospheric-pressure, adiabatic, tubular reactor, operated under laminar flow conditions. The concentration profiles of major, minor, and trace species were obtained for n-butane/DME/oxygen/argon at six different reactor inlet temperatures, and the results were compared with those attained for pure n-butane oxidation case (n-butane/oxygen/argon). Dimethyl ether addition decreased formations of various toxic species such as carbon monoxide, aromatic species, and polycyclic aromatic hydrocarbons, while it increased the formations of formaldehyde and acetaldehyde. Increasing equivalence ratio increased the formations of carbon monoxide, methane, aromatic species, and polycyclic aromatic hydrocarbons, while its effects on formaldehyde and acetaldehyde were not pronounced under the conditions studied.

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“…As a result, DME is considered as an ideal alternative to LPG and diesel fuel in the gas turbines and fuel cell. Furthermore, DME can also be used as LPG blend stock in cooking and heating, as fuels for power generation in combined cycle plants, and as a chemical intermediate for novel pathway to high-value oxygenated compounds (Fleisch et al, 2012;Mbuyi et al, 2012).…”

Section: Dmcmentioning

confidence: 99%

A Review: CO2 Utilization

Huang

Tan

2014

Aerosol Air Qual. Res.

328

134

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Global warming due to the accumulation of atmospheric CO 2 has received widespread attention in recent years. Although various CO 2 capture technologies have been proposed, using the captured CO 2 from power plants is increasingly popular because of concerns with regard to the safety of underground and ocean CO 2 storage. Various techniques related to utilization of CO 2 from the exhausted gas of power plants are discussed in this article. The existing and under-development technologies for CO 2 utilization in the world are briefly reviewed. Two categories, direct utilization of CO 2 and conversion of CO 2 to chemicals and energy products, are used to classify different forms of CO 2 utilization. Regarding the direct utilization of CO 2 , in addition to its use in soft drinks, welding, foaming, and propellants, as well as the use of supercritical CO 2 as a solvent, CO 2 capture via photosynthesis to directly fix carbon into microalgae has also attracted the attention of researchers. The conversion of CO 2 into chemicals and energy products via this approach is a promising way to not only reduce the CO 2 emissions, but also generate more economic value. Since CO 2 is just a source of carbon without hydrogen, a clean, sustainable and cheap source of hydrogen should be developed. This article reviews the literature on the production of biofuel from microalgae cultivated using captured CO 2 , the conversion of CO 2 with hydrogen to chemicals and energy products, and sustainable and clean sources of hydrogen, in order to demonstrate the potential of CO 2 utilization.

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Introduction and advancement of a new clean global fuel: The status of DME developments in China and beyond

Cited by 200 publications

References 8 publications

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

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

Effects of dimethyl ether on n-butane oxidation

A Review: CO2 Utilization

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