Thermodynamic characterization of bio-fuels: Excess functions for binary mixtures containing ETBE and hydrocarbons

Segovia, José J.; Villamañán, Rosa M.; Martín, M. Carmen; Chamorro, César R.; Villamañán, Miguel A.

doi:10.1016/j.energy.2009.09.025

Cited by 8 publications

(2 citation statements)

References 12 publications

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“…The first studies were focused on different ethers MTBE (methyl tert -butyl ether), DIPE (di-isopropyl ether), and TAME ( tert -amyl methyl ether), and then we continue with biocompounds, those of vegetable origin, that can be considered as biofuels, ETBE (ethyl tert -butyl ether), or alcohols such as propanol isomers or 1-pentanol. As an example only a few papers are referenced. − …”

Section: Introductionmentioning

confidence: 99%

Vapor–Liquid Equilibria of Binary Mixtures Containing 2-Butanol and Hydrocarbons at 313.15 K

Belabbaci¹,

Villamañán²,

Négadi³

et al. 2012

J. Chem. Eng. Data

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The paper reports the isothermal vapor−liquid equilibria (VLE) of five binary mixtures containing 2-butanol + heptane, + 2,2,4-trimethylpentane, + dodecane, + cyclohexane, and + methylbenzene at 313.15 K. A static technique has been used for the measurements. Data reduction by Barker's method provides the parameters of G E models. The six-parameter Margules equation, Wilson, nonrandom two-liquid (NRTL), and universal quasichemical activity coefficient (UNIQUAC) models have been used for the correlation of the experimental data. Good results have been obtained for all. The five investigated mixtures exhibit a positive deviation from ideality, and four of them show a maximum pressure azeotrope. Only the mixture 2-butanol + dodecane does not present an azeotrope.

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Section: Introductionmentioning

confidence: 99%

Vapor–Liquid Equilibria of Binary Mixtures Containing 2-Butanol and Hydrocarbons at 313.15 K

Belabbaci¹,

Villamañán²,

Négadi³

et al. 2012

J. Chem. Eng. Data

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“…In the industry, ETBE is produced using liquid phase isobutene and ethanol as the reactants and is usually catalyzed by macroporous sulfonic acid resins at a temperature below 80 °C under pressurized conditions of 6 atm. A series of separation processes are applied to obtain a higher-purity ETBE, while excess ethanol is recycled [324, 325]. Ethanol can come from a renewable source, such as wheat, beet, or lignocellulose, while isobutene is derived from crude oil or natural gas (Fig.…”

Section: Opportunities To Produce Bio-based Chemicals Alongside Cellumentioning

confidence: 99%

A review on commercial-scale high-value products that can be produced alongside cellulosic ethanol

Rosales-Calderon

Arantes

2019

Biotechnol Biofuels

381

255

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The demand for fossil derivate fuels and chemicals has increased, augmenting concerns on climate change, global economic stability, and sustainability on fossil resources. Therefore, the production of fuels and chemicals from alternative and renewable resources has attracted considerable and growing attention. Ethanol is a promising biofuel that can reduce the consumption of gasoline in the transportation sector and related greenhouse gas (GHG) emissions. Lignocellulosic biomass is a promising feedstock to produce bioethanol (cellulosic ethanol) because of its abundance and low cost. Since the conversion of lignocellulose to ethanol is complex and expensive, the cellulosic ethanol price cannot compete with those of the fossil derivate fuels. A promising strategy to lower the production cost of cellulosic ethanol is developing a biorefinery which produces ethanol and other high-value chemicals from lignocellulose. The selection of such chemicals is difficult because there are hundreds of products that can be produced from lignocellulose. Multiple reviews and reports have described a small group of lignocellulose derivate compounds that have the potential to be commercialized. Some of these products are in the bench scale and require extensive research and time before they can be industrially produced. This review examines chemicals and materials with a Technology Readiness Level (TRL) of at least 8, which have reached a commercial scale and could be shortly or immediately integrated into a cellulosic ethanol process.

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Sorption characteristics of ethyl tert-butyl ether to Chinese reference soils

Zhu

2011

Environ Earth Sci

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As a gasoline additive, ethyl tert-butyl ether (ETBE) has great market potential and its utilization might cause groundwater contamination problem. However, little research has been done on its sorption in soil. In this study, the sorption characteristics of ETBE to Chinese reference soils were studied in batch experiments. The results showed that the ETBE sorption to six soils can be described by linear sorption isotherm. The temperature influences the sorption process of ETBE to soils. The negative sorption enthalpy (DH \ 0) indicated that the sorption process was exothermic. Furthermore, DH is in a range from -8 to -32 kJ/mol. This showed that van der Waals forces and other specific interactions happened simultaneously in the sorption process. With the increasing ionic strength, content of ETBE sorption to all soils decreased, which is probably also an indication of other sorption mechanisms besides ETBE partitioning into soil organic carbon.

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Thermodynamic characterization of bio-fuels: Excess functions for binary mixtures containing ETBE and hydrocarbons

Cited by 8 publications

References 12 publications

Vapor–Liquid Equilibria of Binary Mixtures Containing 2-Butanol and Hydrocarbons at 313.15 K

Vapor–Liquid Equilibria of Binary Mixtures Containing 2-Butanol and Hydrocarbons at 313.15 K

A review on commercial-scale high-value products that can be produced alongside cellulosic ethanol

Sorption characteristics of ethyl tert-butyl ether to Chinese reference soils

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