Techno-economic and greenhouse gas emission analysis of dimethyl ether production via the bi-reforming pathway for transportation fuel

Uddin, Mosleh; Simson, Amanda; Wright, Mark Mba

doi:10.1016/j.energy.2020.119031

Cited by 23 publications

(14 citation statements)

References 41 publications

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“…Another recent work to make the comparison is Uddin et al [ 55 ]. This study described the techno-environmental analysis of dimethyl ether (DME) production via methanol dehydration where methanol was synthesized through bi-reforming of CH 4 from landfill gas.…”

Section: Resultsmentioning

confidence: 99%

Process Simulation and Environmental Aspects of Dimethyl Ether Production from Digestate-Derived Syngas

Giuliano

Catizzone

Freda

2021

IJERPH

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The production of dimethyl ether from renewables or waste is a promising strategy to push towards a sustainable energy transition of alternative eco-friendly diesel fuel. In this work, we simulate the synthesis of dimethyl ether from a syngas (a mixture of CO, CO2 and H2) produced from gasification of digestate. In particular, a thermodynamic analysis was performed to individuate the best process conditions and syngas conditioning processes to maximize yield to dimethyl etehr (DME). Process simulation was carried out by ChemCAD software, and it was particularly focused on the effect of process conditions of both water gas shift and CO2 absorption by Selexol® on the syngas composition, with a direct influence on DME productivity. The final best flowsheet and the best process conditions were evaluated in terms of CO2 equivalent emissions. Results show direct DME synthesis global yield was higher without the WGS section and with a carbon capture equal to 85%. The final environmental impact was found equal to −113 kgCO2/GJ, demonstrating that DME synthesis from digestate may be considered as a suitable strategy for carbon dioxide recycling.

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Section: Resultsmentioning

confidence: 99%

Process Simulation and Environmental Aspects of Dimethyl Ether Production from Digestate-Derived Syngas

Giuliano

Catizzone

Freda

2021

IJERPH

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“…Rostrup-Nielsen and Christiansen also reported that the CH 4 /H 2 O ratio of 1.13 resulted in the onset of carbon formation at 810 °C. Uddin et al also noted that the high operating temperature in the bi-reforming process inhibited the coke formation. In the current study, the bi-reforming reactor operating conditions were 910 °C and a feed ratio CH 4 /H 2 O of 1/2 at which the coke formation could be mostly avoided by reaction conditions.…”

Section: Methodsmentioning

confidence: 99%

“…The reaction is highly exothermic and equilibrium-controlled. , Integrating the downstream methanol synthesis process with the upstream reforming, product separation and energy optimization are critical aspects in technoeconomic feasibility of methanol synthesis using bi-reforming. Several processes for methanol production using syngas from different reforming processes have been proposed by previous studies. − A brief review of a few recent studies is summarized in Table .…”

Section: Introductionmentioning

confidence: 99%

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Simulations and Optimization of a Reduced CO₂ Emission Process for Methanol Production Using Syngas from Bi-reforming

Acquarola

Bhatelia

et al. 2021

Energy Fuels

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A low CO2 emission process for methanol production using syngas generated by combined H2O and CO2 reforming with CH4 (bi-reforming) is proposed in this work. A detailed process model was developed using Aspen Plus. The operating conditions of the bi-reforming and methanol synthesis were derived from a detailed sensitivity analysis using plug flow reactor models with Langmuir–Hinshelwood–Hougen–Watson (LHHW) kinetics. A molar feed ratio of CH4:CO2:H2O of 1:1:2, instead of conventional 3:1:2 in the bi-reforming was found to be optimum and resulted in ∼99% conversion of CH4, 44% conversion of CO2, and a H2/CO ratio of 1.78 at 910 °C and 7 bar. A higher methane conversion eliminated the need for cryogenic separation of CH4. The optimum feed ratio of 1:1:2 resulted in an ∼33% higher consumption of CO2 per mole of CH4 required than the conventional process. An acid gas removal process using MDEA was used for CO2 separation, and a network of heat exchangers was configured for heat recovery. The proposed process resulted in ∼0.37 tonne of CO2 per tonne of methanol, which is ∼2–4 times lower than several published data and commercial methanol processes.

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“…Coal and biomass wastes are processed through gasification into syngas [3]. Natural gas is converted into syngas through the reforming process, steam reforming, partial oxidation, and auto-thermal reforming [4], [5]. The partial oxidation reaction is more efficient than the steam reforming process due to the energy surplus.…”

Section: Introductionmentioning

confidence: 99%

Effect of Dimethyl Ether (Dme) as LPG Substitution on Household Stove: Mixture Stability, Stove Efficiency, Fuel Consumption, and Materials Testing

Murti

Priyanto

Masfuri

et al. 2023

Majalah Ilmiah Pengkajian Industri

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DME has characteristics similar to LPG so that the storage and handling are not so different from LPG. DME could be used as a solvent that can extract typical types of rubber/polymer material. The aims and objectives of this study are to determine the effect of DME/LPG (100/0, 80/20, 50/50, 30/70, 20/80) on the stability of the DME/LPG mixture on the stove and also to observe the effect on several rubber materials/polymers on stove accessories. The study reveals that the usage of a DME/LPG mixture between 20/80 - 30/70 does not require a replacement of any substitute materials but only requires minor modifications to the stove. However, at a higher DME composition, the use of the fuel needs to replace the seal that is resistant to DME. It occurs due to the change of the gas composition when it is used.

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Techno-economic and greenhouse gas emission analysis of dimethyl ether production via the bi-reforming pathway for transportation fuel

Cited by 23 publications

References 41 publications

Process Simulation and Environmental Aspects of Dimethyl Ether Production from Digestate-Derived Syngas

Process Simulation and Environmental Aspects of Dimethyl Ether Production from Digestate-Derived Syngas

Simulations and Optimization of a Reduced CO₂ Emission Process for Methanol Production Using Syngas from Bi-reforming

Effect of Dimethyl Ether (Dme) as LPG Substitution on Household Stove: Mixture Stability, Stove Efficiency, Fuel Consumption, and Materials Testing

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Techno-economic and greenhouse gas emission analysis of dimethyl ether production via the bi-reforming pathway for transportation fuel

Cited by 23 publications

References 41 publications

Process Simulation and Environmental Aspects of Dimethyl Ether Production from Digestate-Derived Syngas

Process Simulation and Environmental Aspects of Dimethyl Ether Production from Digestate-Derived Syngas

Simulations and Optimization of a Reduced CO2 Emission Process for Methanol Production Using Syngas from Bi-reforming

Effect of Dimethyl Ether (Dme) as LPG Substitution on Household Stove: Mixture Stability, Stove Efficiency, Fuel Consumption, and Materials Testing

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Simulations and Optimization of a Reduced CO₂ Emission Process for Methanol Production Using Syngas from Bi-reforming