Hydrodynamics of slurry bubble column during dimethyl ether (DME) synthesis: Gas–liquid recirculation model and radioactive tracer studies

2006 ◽  
Vol 61 (19) ◽  
pp. 6553-6570 ◽  
Author(s):  
P. Chen ◽  
P. Gupta ◽  
M.P. Dudukovic ◽  
B.A. Toseland
Keyword(s):  
Dimethyl Ether ◽  
Synthesis Gas ◽  
Bubble Column ◽  
Radioactive Tracer ◽  
Tracer Studies ◽  
Recirculation Model ◽  
Dme Synthesis ◽  
Liquid Recirculation ◽  
Slurry Bubble Column

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.

Pilot Test of Olefin Synthesis from Dimethyl Ether in a Synthesis Gas Atmosphere

2021 ◽  
Author(s):  
Maria V. Magomedova ◽  
Mikhail I. Afokin ◽  
Anastasiya V. Starozhitskaya ◽  
Ekaterina G. Galanova
Keyword(s):  
Dimethyl Ether ◽  
Synthesis Gas ◽  
Pilot Test ◽  
Olefin Synthesis ◽  
Gas Atmosphere
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