scholarly journals Modelling and Environmental Aspects of Direct or Indirect Dimethyl Ether Synthesis Using Digestate as Feedstock

2021 ◽  
Vol 8 (5) ◽  
pp. 780-786
Author(s):  
Aristide Giuliano ◽  
Enrico Catizzone
Keyword(s):  
Anaerobic Digestion ◽  
Dimethyl Ether ◽  
Process Simulation ◽  
Organic Waste ◽  
Added Value ◽  
Target Product ◽  
Environmental Aspects ◽  
Dimethyl Ether Synthesis ◽  
Ether Synthesis

The conversion of waste and residues towards high added value products has receiving a growing attention, as a reliable strategy to improve sustainability of emergent processes. Anaerobic digestion converts organic waste into biogas and digestate. While biogas may be used for energetic purpose, digestate has limited uses and with a low profitability. In this paper, dimethyl ether (DME) is adopted as target product which may be produced from digestate-derived syngas. Process simulation is carried out for both direct and indirect synthesis of DME and environmental aspects are assessed.

Process simulation of bio-dimethyl ether synthesis from tri-reforming of biogas: CO2 utilization

Energy ◽  
2019 ◽  
Vol 175 ◽  
pp. 36-45 ◽  
Author(s):  
Dang Saebea ◽  
Suthida Authayanun ◽  
Amornchai Arpornwichanop
Keyword(s):  
Dimethyl Ether ◽  
Process Simulation ◽  
Co2 Utilization ◽  
Dimethyl Ether Synthesis ◽  
Ether Synthesis

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

2021 ◽  
Vol 18 (2) ◽  
pp. 807
Author(s):  
Aristide Giuliano ◽  
Enrico Catizzone ◽  
Cesare Freda
Keyword(s):  
Dimethyl Ether ◽  
Process Simulation ◽  
Carbon Capture ◽  
Energy Transition ◽  
Process Conditions ◽  
Co2 Absorption ◽  
Environmental Aspects ◽  
Dme Synthesis ◽  
Water Gas ◽  
Synthesis Of Dimethyl Ether

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.

Dimethyl Ether Synthesis Catalysts, Processes and Reactors

2013 ◽  
Vol 2 (1) ◽  
pp. 68-81 ◽  
Author(s):  
Grigore Bozga ◽  
Ioan T. Apan ◽  
Raluca E. Bozga
Keyword(s):  
Dimethyl Ether ◽  
Dimethyl Ether Synthesis ◽  
Synthesis Catalysts ◽  
Ether Synthesis

scholarly journals Intrinsic Kinetics Study of Dimethyl Ether Synthesis from Methanol on γ-Al2O3Catalysts

2008 ◽  
Vol 47 (18) ◽  
pp. 7130-7130 ◽  
Author(s):  
Majid Mollavali ◽  
Fereydoon Yaripour ◽  
Hossein Atashi ◽  
Saeed Sahebdelfar
Keyword(s):  
Dimethyl Ether ◽  
Kinetics Study ◽  
Intrinsic Kinetics ◽  
Dimethyl Ether Synthesis ◽  
Ether Synthesis

Dimethyl ether synthesis via methanol dehydration over Ta-supported catalysts

2019 ◽  
Vol 582 ◽  
pp. 117088 ◽  
Author(s):  
Concepción Herrera ◽  
Marina Cortés-Reyes ◽  
M. Ángeles Larrubia ◽  
M. Vanesa Domínguez-Barroso ◽  
M. Rocío Díaz-Rey ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Supported Catalysts ◽  
Methanol Dehydration ◽  
Dimethyl Ether Synthesis ◽  
Ether Synthesis
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