Optimization of the ETBE (ethyl tert-butyl ether) production process

Menezes, Eliana Weber de; Cataluña, Renato

doi:10.1016/j.fuproc.2008.05.006

Cited by 47 publications

(35 citation statements)

References 20 publications

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“…A variety of algorithms have been used by previous researchers to optimize the design of azeotropic distillation columns (Menezes and Cataluna, 2008;Pommier et al, 2008;Szitkai et al, 2002). In this study, a particle swarm optimization (PSO) algorithm was used.…”

Section: Process Optimization and Comparison Of Performancesmentioning

confidence: 99%

A semicontinuous approach for heterogeneous azeotropic distillation processes

Tabari

Ahmad

2015

Computers & Chemical Engineering

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Section: Process Optimization and Comparison Of Performancesmentioning

confidence: 99%

A semicontinuous approach for heterogeneous azeotropic distillation processes

Tabari

Ahmad

2015

Computers & Chemical Engineering

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“…Compared to the direct blending of EtOH, it implies far lower volatility, lower solubility in water and less emissions derived risks. Furthermore, ethers presence, especially TAEE, enhances EtOH solubility in fuels [33][34][35] reducing the possibility of phase separation [1]. In addition, the proposed PFD allows a considerably high EtOH usage as raw material (stream 2) and avoids an extra-unit for EtOH recovering.…”

Section: Continuous Process Simulationmentioning

confidence: 99%

Green metrics analysis applied to the simultaneous liquid-phase etherification of isobutene and isoamylenes with ethanol over Amberlyst™ 35

Fité¹,

Ramírez²,

Bringué³

et al. 2014

Green Processing and Synthesis

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A case study of the green metrics analysis of several processes is described. The considered system is the simultaneous etherification of isobutene and isoamylenes with ethanol over Amberlyst TM 35. Experimental results are compared under the green metrics methodology with those for the isolated ethyl tert-butyl ether and tert-amyl ethyl ether syntheses previously reported over acid ionexchange resins using different reaction batch devices and different synthesis pathways, such as the production of both ethers from tertiary alcohols and from ethanol. The best results, from an environmental point of view, were obtained for ether syntheses from olefins and ethanol in terms of the parameters measured in the green metrics analysis. A process allowing the separation of ethers from the product stream and the reactants recirculation has been proposed and simulated. The suggested process depicts a suitable alternative for the simultaneous production of tertiary ethers from pure olefin feed and their downstream implementation as greener fuel additives with environmental benefits. Abbreviations and nomenclature 2M1B2-methyl-1-butene 2M2B 2-methyl-2-butene AE atom economy (MW product ·MW reactants -1 ) bRVP blending Reid vapor pressure (MPa) C factor carbon factor (g CO2(cradle to gate) ·kg product -1

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“…Alcohols and tertiary ethers are the oxygenates used as additives in gasoline with their decent properties such as high octane numbers and low CO emissions. 1 Tertiary ethers have attracted increasing attention with their superior properties compared with alcohols. Among the tert-ethers proposed as octane enhancing gasoline blending compounds, ethanol derived oxygenates, such as ethyl-tert-butyl ether (ETBE) and tert-amyl ethyl ether (TAEE), attracted major attention of researchers and fuel producers due to their better burning properties and their superiority over MTBE on environmental safety basis.…”

Section: Introductionmentioning

confidence: 99%

“…10 Acidity of these catalysts was stated to be higher than mineral acids, such as H 2 SO 4 , HCl, HNO 3 . 11 In a work conducted by Thomas et al, 12 activities of two heteropoly acid catalysts, namely silica supported silicotungstic acid (STA) and tungstophosphoric acid (TPA) were compared by 1 H MAS NMR analysis, in terms of coverage and dehydroxylation temperature. The results of 1 H NMR analysis of TPA after treatment at 300 C, under vacuum indicated disapperance of protons.…”

Section: Introductionmentioning

confidence: 99%

Activated carbon supported silicotungstic acid catalysts for ethyl‐tert‐butyl ether synthesis

2011

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in Wiley Online Library (wileyonlinelibrary.com).Vapor phase ethyl-tert-butyl ether (ETBE) production was conducted in the presence of Cesium salts of silicotungstic acid (Cs-STA), activated carbon supported silicotungstic acid (AC-STA), and activated carbon supported Cesium salts of silicotungstic acid (AC-Cs-STA) catalysts. Isobutene (IB) conversion to ETBE at 373 K were determined as 0.16 and 0.2 for STA and AC-STA catalysts on constant space time basis. This increase of activity is one of the highlights of this study considering that STA loading in AC-STA catalysts had been adjusted to 40%. IB conversion to ETBE obtained at 373 K in the presence of AC-STA catalyst was found to be close to equilibrium. Stability of the synthesized catalysts were tested by applying a washing procedure with ethanol. Repeated ETBE synthesis with thoroughly washed samples indicated quite stable and active catalyts.

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Optimization of the ETBE (ethyl tert-butyl ether) production process

Cited by 47 publications

References 20 publications

A semicontinuous approach for heterogeneous azeotropic distillation processes

A semicontinuous approach for heterogeneous azeotropic distillation processes

Green metrics analysis applied to the simultaneous liquid-phase etherification of isobutene and isoamylenes with ethanol over Amberlyst™ 35

Activated carbon supported silicotungstic acid catalysts for ethyl‐tert‐butyl ether synthesis

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