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Title: Dimethyl ether synthesis from CO{sub 2}-rich syngas in the LPDME process

Abstract

The liquid phase dimethyl ether, LPDME, synthesis process was developed by the University of Akron and EPRI team as a means to overcome the chemical equilibrium involved in the synthesis of methanol from a syngas feed. This process alleviates the methanol synthesis equilibrium limitation by converting the product into dimethyl ether. The conversion is performed in a slurry reactor and involves the use of a dual catalyst mixture for the single-stage conversion of syngas to DME. As with the LPMeOH{trademark}, the LPDME process utilizes an inert mineral oil to facilitate heat transfer as well as provide a medium for catalyst mixing. The reaction typically takes place at 250 C and 7.0 MPa and makes use of Cu/ZnO/Al{sub 2}O{sub 3} and {gamma}-Alumina as the methanol synthesis and DME synthesis catalysts respectively. As with LPMeOH{trademark}, the water gas shift reaction plays an important role on final DME productivity, reaction rate and selectivity. The emphasis in this paper is to examine the effect of varying CO{sub 2} concentrations on the reaction kinetics. DME productivity, reaction rate, and selectivity as a function of CO{sub 2} concentration in syngas was examined. Concentrations of CO{sub 2} in syngas ranging from 4% to 13% were used.

Authors:
; ; ;  [1]
  1. Univ. of Akron, OH (United States)
Publication Date:
OSTI Identifier:
257131
Report Number(s):
CONF-950952-
TRN: IM9631%%337
Resource Type:
Conference
Resource Relation:
Conference: 12. annual international Pittsburgh coal conference, Pittsburgh, PA (United States), 11-15 Sep 1995; Other Information: PBD: 1995; Related Information: Is Part Of Twelfth annual international Pittsburgh coal conference: Proceedings. Coal -- Energy and the environment; PB: 1248 p.
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 10 SYNTHETIC FUELS; ETHERS; SYNTHESIS; COPPER OXIDES; CATALYTIC EFFECTS; ZINC OXIDES; ALUMINIUM OXIDES; METHANOL; DEHYDRATION; SYNTHESIS GAS; LIQUID PHASE METHANOL PROCESS; MODIFICATIONS; CHEMICAL REACTION YIELD; CHEMICAL REACTION KINETICS; CONCENTRATION RATIO

Citation Formats

Gunda, A, Tartamella, T, Gogate, M, and Lee, S. Dimethyl ether synthesis from CO{sub 2}-rich syngas in the LPDME process. United States: N. p., 1995. Web.
Gunda, A, Tartamella, T, Gogate, M, & Lee, S. Dimethyl ether synthesis from CO{sub 2}-rich syngas in the LPDME process. United States.
Gunda, A, Tartamella, T, Gogate, M, and Lee, S. 1995. "Dimethyl ether synthesis from CO{sub 2}-rich syngas in the LPDME process". United States.
@article{osti_257131,
title = {Dimethyl ether synthesis from CO{sub 2}-rich syngas in the LPDME process},
author = {Gunda, A and Tartamella, T and Gogate, M and Lee, S},
abstractNote = {The liquid phase dimethyl ether, LPDME, synthesis process was developed by the University of Akron and EPRI team as a means to overcome the chemical equilibrium involved in the synthesis of methanol from a syngas feed. This process alleviates the methanol synthesis equilibrium limitation by converting the product into dimethyl ether. The conversion is performed in a slurry reactor and involves the use of a dual catalyst mixture for the single-stage conversion of syngas to DME. As with the LPMeOH{trademark}, the LPDME process utilizes an inert mineral oil to facilitate heat transfer as well as provide a medium for catalyst mixing. The reaction typically takes place at 250 C and 7.0 MPa and makes use of Cu/ZnO/Al{sub 2}O{sub 3} and {gamma}-Alumina as the methanol synthesis and DME synthesis catalysts respectively. As with LPMeOH{trademark}, the water gas shift reaction plays an important role on final DME productivity, reaction rate and selectivity. The emphasis in this paper is to examine the effect of varying CO{sub 2} concentrations on the reaction kinetics. DME productivity, reaction rate, and selectivity as a function of CO{sub 2} concentration in syngas was examined. Concentrations of CO{sub 2} in syngas ranging from 4% to 13% were used.},
doi = {},
url = {https://www.osti.gov/biblio/257131}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {12}
}

Conference:
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