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Optimization of KOGAS DME Process From Demonstration Long-Term Test

KOGAS DME 공정의 실증 시험을 통한 최적화 기술개발

  • 정종태 (한국가스공사 연구개발원 자원기술연구센터) ;
  • 조원준 (한국가스공사 연구개발원 자원기술연구센터) ;
  • 백영순 (한국가스공사 연구개발원 자원기술연구센터) ;
  • 이창하 (연세대학교 화공생명공학과)
  • Received : 2012.08.27
  • Accepted : 2012.10.26
  • Published : 2012.10.31

Abstract

Dimethyl ether (DME) is a new clean fuel as an environmentally-benign energy resource. DME can be manufactured from various energy sources including natural gas, coal, and biomass. In addition to its environmentally friendly properties, DME has similar characteristics to those of LPG. The aim of this article is to represent the development of new DME process with KOGAS's own technologies. KOGAS has investigated and developed new innovative DME synthesis process from synthesis gas in gaseous phase fixed bed reactor. DME has been traditionally produced by the dehydration of methanol which is produced from syngas, a product of natural gas reforming. This traditional process is thus called the two-step method of preparing DME. However, DME can also be manufactured directly from syngas (single-step). The single-step method needs only one reactor for the synthesis of DME, instead of two for the two-step process. It can also alleviate the thermodynamic limitations associated with the synthesis of methanol, by converting the produced methanol into DME, thereby potentially enhancing the overall conversion of syngas into DME. KOGAS had launched the 10 ton/day DME demonstration plant project in 2004 at Incheon KOGAS LNG terminal. In the mid of 2008, KOGAS had finished the construction of this plant and has successively finished the demonstration plant operation. And since 2008, we have established the basic design of commercial plant which can produce 3,000 ton/day DME.

Keywords

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