(77a) Production of Dimethyl Carbonate Via Reactive Distillation Process | AIChE

(77a) Production of Dimethyl Carbonate Via Reactive Distillation Process


Dada, E. A. - Presenter, ChemProcess Technologies (CPT), LLC
Panchal, C. - Presenter, Argonne National Laboratory
Doctor, R. D. - Presenter, Argonne National Laboratory

Carbonate (DMC) is an environmentally benign and biodegradable product. Because
of its high oxygen content, DMC is an idea additive for gasoline to replace methyl
tert-butyl ether (MTBE). DMC has many applications in the synthesis of
polycarbonates, production of methyl isocyanate and as a replacement of halogenated
solvents.  It is extensively used as a methylating and carbonylating agent. Dimethyl
Carbonate has recently becomes an important solvent in the lithium ion battery
solutions and other electrochemical and coating sectors.

early commercial production of DMC via phosgenation of methanol has many draw
backs especially the toxicity of phosgene and is being phased out and replaced by
other methods. Among these new routes of producing DMC are the oxidative carbonylation
of methanol involving CO, transesterification using propylene carbonate or
ethylene carbonate to co-produce DMC and propylene glycol or ethylene glycol,
and methanolysis of urea.  The merits of each of the new routes of producing
DMC will be presented especially the systematic choice of entrainers in the extractive
distillation step to separate the DMC-Methanol azeotrope common to all the
three routes.


This paper has an Extended Abstract file available; you must purchase the conference proceedings to access it.


Do you already own this?



AIChE Pro Members $150.00
AIChE Graduate Student Members Free
AIChE Undergraduate Student Members Free
AIChE Explorer Members $225.00
Non-Members $225.00