Synthesis of dimethyl carbonate from methanol and supercritical carbon dioxide

Authors
Hong, Seung TaePark, Hyung SangLim, Jong SungLee, Youn-WooAnpo, MasakazuKim, Jae-Duck
Issue Date
2006-10
Publisher
SPRINGER
Citation
RESEARCH ON CHEMICAL INTERMEDIATES, v.32, no.8, pp.737 - 747
Abstract
The synthesis of dimethyl carbonate (DMC) from methanol and supercritical carbon dioxide over various base catalysts has been studied. Compounds of group-I elements (Li, Na and K) were used as base catalysts. The promoter and the dehydrating agent were also used to enhance the yield of DMC. The effects of the catalysts, promoter and dehydrating agent on the yield of DMC were investigated. By-products such as dimethyl ether (DME) and C-1-C-2 hydrocarbons were formed with the DMC as a main product. The yield of DMC with different alkali metal catalysts ranked in the following order: K > Na > Li. The catalysts of the metal-CO3 compounds were more effective than the metal-OH compounds in DMC synthesis. The maximum DMC yield reached up to about 12 mol% in the presence of K2CO3 (catalyst), CH3I (promoter) and 2,2-dimethoxypropane (dehydrating agent) at 130-140 degrees C and 200 bar. The reaction mechanism of DMC synthesis from methanol and supercritical carbon dioxide was proposed.
Keywords
OXIDATIVE CARBONYLATION; CATALYTIC-PROPERTIES; OXIDATIVE CARBONYLATION; CATALYTIC-PROPERTIES; dimethyl carbonate; supercritical carbon dioxide; base catalyst; reaction mechanism
ISSN
0922-6168
URI
https://pubs.kist.re.kr/handle/201004/135065
DOI
10.1163/156856706778606552
Appears in Collections:
KIST Article > 2006
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE