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Development of Direct DME Synthesis Process  

Mo, Yong-Gi (DME Research Project, Korea Gas Corporation R&D Division)
Cho, Won-Jun (DME Research Project, Korea Gas Corporation R&D Division)
Baek, Young-Soon (DME Research Project, Korea Gas Corporation R&D Division)
Publication Information
Journal of the Korean Institute of Gas / v.14, no.3, 2010 , pp. 41-45 More about this Journal
Abstract
The physical properties of DME(Dimethyl Ether) are very similar to LPG and well-mixed. As cetane number of DME is similar to diesel fuel that can replace diesel fuel and alternative energy. DME is a clean energy source that can be manufactured from various raw materials such as natural gas, CBM(Coal Bed Methane) and biomass. DME has no carbon-carbon bond in its molecular structure and its combustion essentially generates no soot as well as no SOx. The development of DME process in KOGAS have 4 section. First, syngas section can be manufactured various syngas ratio. This completes the tri-reforming process for the synthesis gas ratio of approximately 4.0 to 1.0 range can be adjusted. Second, $CO_2$ is removed from the $CO_2$ removal section of about 92~99%, so the maximum concentration of $CO_2$ entering the DME synthesis reactor should not exceed 8%. Third, in the DME synthesis section, if the temperature of DME reactor increases, the activity of DME catalyst increased. but for the long-term activity is desirable to maintain the proper temperature. Finally, the purity of DME in the DME purification section is over 99.6%.
Keywords
DME; Dimethyl Ether; syngas; synthesis gas; $CO_2$; carbon dioxide; tri-reforming; trireformer; DME synthesis; catalyst; KOGAS DME process;
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