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Arkharov, A. M.; Glukhov, S. D.; Grekhov, Leonid; Жердев, А. А.; Ivashchenko, Nikolay; Kalinin, D. N.; Sharaburin, A. V.; Aleksandrov, A. A.

doi:10.1023/a:1025691822006

Cited by 36 publications

(11 citation statements)

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“…Dimethyl ether (DME) and fluoro-dimethyl ether are environmentally friendly aerosol sprays and green refrigerants because of their zero ozone depletion potential (ODP) and their lower globe warming potential (GWP) compared with the traditional chlorofluorocarbons (CFCs, Freon) and newer R134a (HFC-134a) [1][2][3][4][5]. At the same time, direct utilization of dimethyl ether fuel instead of diesel-fuel for vehicles gives out lower NOx, and CO and particle concentrations in exhaust even without catalytic treatment [6]. And dimethyl ether (DME) could also be used as a fuel additive and a family cooking gas instead of LPG [6].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of dimethyl ether (DME) on modified HY zeolite and modified HY zeolite-supported Cu–Mn–Zn catalysts

Fei

Hou

Zhu

et al. 2006

Applied Catalysis A: General

150

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Section: Introductionmentioning

confidence: 99%

“…At the same time, direct utilization of dimethyl ether fuel instead of diesel-fuel for vehicles gives out lower NOx, and CO and particle concentrations in exhaust even without catalytic treatment [6]. And dimethyl ether (DME) could also be used as a fuel additive and a family cooking gas instead of LPG [6].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of dimethyl ether (DME) on modified HY zeolite and modified HY zeolite-supported Cu–Mn–Zn catalysts

Fei

Hou

Zhu

et al. 2006

Applied Catalysis A: General

150

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“…Interest in hydrogen production for fuel cell applications is steadily increasing due to environmental concerns [1]. Among the various feed gases, dimethyl ether (DME) has proved to be a good alternative fuel to minimise global greenhouse gas emissions and hazardous components such as SO x , NO x and particulate matter, because DME is similar in nature to liquefied petroleum gas (LPG) [2]. Three reactions take place in the Syngas-To-Dimethyl ether (STD) process:…”

Section: Introductionmentioning

confidence: 99%

Mechanism of reaction of CeO₂–CaO–Pd/HZSM5 catalyst in the Syngas process in the presence of sulfur-containing impurities

Chu

Meng

et al. 2016

Progress in Reaction Kinetics and Mechanism

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CeO2–CaO–Pd/HZSM5 catalyst, prepared using HZSM5 supports, with CeO2–CaO as the additive components, HZSM5 as the acid component and Pd as the hydrogenation component, have been prepared by the impregnation method, and the catalytic and sulfur-tolerant performance in the Syngas-To-Dimethyl ether (STD) reaction with thiophene and H2S as probe sulfur poisons were examined. The prepared catalyst exhibited higher catalytic performance and better sulfur resistance than a conventional catalyst based on Cu/ZnO/Al2O3 and HZSM5. The sulfur content, Pd sulfidity and acid concentration were determined in order to ascertain the adsorption sites of sulfides on the surface of the catalyst, and the products of the STD reaction from sulfur-containing syngas in an autoclave were analysed by GC-MS at different reaction times in order to determine the sulfur-tolerance mechanism of the catalyst. The study confirms that almost no H2S is absorbed on the surface of CeO2–CaO–Pd/HZSM5 catalyst, while thiophene is absorbed and activated on the acid sites of HZSM5, and hydrogen is adsorbed dissociatively on Pd active sites, followed by active hydrogen spillover to the acid sites to promote hydrogenation and thus convert the adsorbed thiophene to hydrocarbons and hydrogen sulfide.

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“…The European Union recently added BioDME to its potential biofuels for 2030 [6] and the VOLVO Group is coordinator of the European project called BioDME. Currently, most DME is produced by methanol dehydration in moderate quantities and applied as aerosol propellantreplacing the environmentally troublesome CFCs-and as a precursor in the chemical industries [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of an Integrated Micro Packed Bed Reactor-Heat Exchanger Configuration for Direct Dimethyl Ether Synthesis

et al. 2011

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The application of an integrated micro packed bed reactor-heat exchanger for highly exothermic syngas conversion to dimethyl ether was investigated by numerical simulation. A three-dimensional pseudo-homogeneous model was developed to describe concentration and temperature distributions inside a single reaction slit. The model was adopted at low Reynolds numbers (small catalyst particles and long residence times). The simulation results reveal that the micro packed reaction slit is close to isothermal, and a negligible temperature gradient is predicted also for a doubling of the critical reaction slit dimension, i.e. the reaction slit height. The flow in the reaction slit was modelled by Brinkman's equation and it was found that the pressure drop in wide range of gas velocity was not significant. The reactor simulation showed good agreement with experimental results and could be further developed to assess the potential of microstructured packed bed reactors to intensify large-scale industrial processes.

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Cited by 36 publications

References 1 publication

Synthesis of dimethyl ether (DME) on modified HY zeolite and modified HY zeolite-supported Cu–Mn–Zn catalysts

Synthesis of dimethyl ether (DME) on modified HY zeolite and modified HY zeolite-supported Cu–Mn–Zn catalysts

Mechanism of reaction of CeO₂–CaO–Pd/HZSM5 catalyst in the Syngas process in the presence of sulfur-containing impurities

Modeling and Simulation of an Integrated Micro Packed Bed Reactor-Heat Exchanger Configuration for Direct Dimethyl Ether Synthesis

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Cited by 36 publications

References 1 publication

Synthesis of dimethyl ether (DME) on modified HY zeolite and modified HY zeolite-supported Cu–Mn–Zn catalysts

Synthesis of dimethyl ether (DME) on modified HY zeolite and modified HY zeolite-supported Cu–Mn–Zn catalysts

Mechanism of reaction of CeO2–CaO–Pd/HZSM5 catalyst in the Syngas process in the presence of sulfur-containing impurities

Modeling and Simulation of an Integrated Micro Packed Bed Reactor-Heat Exchanger Configuration for Direct Dimethyl Ether Synthesis

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Resources

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Mechanism of reaction of CeO₂–CaO–Pd/HZSM5 catalyst in the Syngas process in the presence of sulfur-containing impurities