Abstract
The Direct Dimethyl Ether (DME) Synthesis Process from Carbon-Based Feed Stocks: Current -Status and Future Prospects II. Kinetic Studies and Catalyst Deactivation
Highlights
In Part I of this series; we illustrated the process feasibility of the LPMeOHtm and LPDMEtm processes and shed an illuminating light on the chemical synergy and role of the water gas shift reaction in the overall process chemistry
Kinetic Studies on LPMEOHtm and LPDMEtm Processes. In this Part II; we focus on the kinetic studies of the liquid phase methanol; LPMeOHtm and direct one-step Dimethyl Ether (DME) synthesis from syngas; the LPDMEtm process
Summary In Part I of this Series; we illustrated the chemical synergy in the LPDMEtm process; and saw how the combination of an equilibriumlimited reaction; methanol synthesis; and an equilibrium-unlimited one; methanol dehydration to form dimethyl ether; can help lift the chemical equilibrium limitation on methanol synthesis alone
Summary
In Part I of this series; we illustrated the process feasibility of the LPMeOHtm and LPDMEtm processes and shed an illuminating light on the chemical synergy and role of the water gas shift reaction in the overall process chemistry. These 2 processes have been illustrative examples of how a mature technology on a commercial scale (ICI low temperature methanol synthesis process) can be successfully adapted to a liquid phase operation. Some of the key advantages of the LPMEOHtm process include better heat transfer characteristics and isothermal operation; use of the CO-rich syngas (from low-cost coal sources); and a very high chemical selectivity to methanol. Copyright © All rights are reserved by Makarand R Gogate
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