Health & Environmental Research Online (HERO)


tert-Amyl methyl ether (TAME) (994-05-8)


278 References Were Found:

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Thermophysical properties for the binary mixtures of tert-amyl methyl ether with n-hexane, cyclopentane, benzene and m-xylene at different temperatures

Authors: Vakili-Nezhaad, GR; Al-Mammari, R; Gujarathi, AM; Ahmad, W (2018) HERO ID: 4662483

[Less] Densities (rho), viscosities (eta), refractive indices (n(D)) and speeds of sound (u) for binary mixtures . . . [More] Densities (rho), viscosities (eta), refractive indices (n(D)) and speeds of sound (u) for binary mixtures of tert-amyl methyl ether (TAME) with n-hexane, cyclopentane, benzene and m-xylene were measured over entire range of composition at atmospheric pressure and several temperatures (293.15, 303.15 and 313.15 K). Excess molar volume (V-E), deviation in refractive index (Delta n(D)), excess isentropic compressibility (K-S(E)), partial molar volume ((V) over bar), excess speed of sound (u(E)), excess free length (L-f(E)), isentropic compressibility (K-S) and deviation in viscosity (Delta ln eta) were calculated from the experimental data. The speeds of sound in present mixtures were estimated using Jacobson free length theory (FLT) and Schaffs collision factor theory (CFT) to determine the precision for their predicting ability relative to experimentally determined values of speed of sound. The viscosity data has been analyzed on the basis of corresponding states approach. A Redlich-Kister type polynomial equation was used to fit the excess/deviation parameters to derive the binary coefficients and standard deviations. A qualitative analysis of these parameters reveals the presence of specific molecular interactions and predicts the mixing behavior of solution components. (C) 2018 Elsevier B.V. All rights reserved.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Cyclopentyl methyl ether, tert-amyl methyl ether and tert-butyl methyl ether: density, dynamic viscosity, surface tension and refractive index

Authors: Randova, A; Vopicka, O; Bartovska, L; Friess, K (2018) HERO ID: 4662342


The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Vapor intrusion risk of fuel ether oxygenates methyl tert-butyl ether (MTBE), tert-amyl methyl ether (TAME) and ethyl tert-butyl ether (ETBE): A modeling study

Authors: Ma, J; Xiong, D; Li, H; Ding, Y; Xia, X; Yang, Y (2017) Journal of Hazardous Materials 332:10-18. HERO ID: 3865112

[Less] Vapor intrusion of synthetic fuel additives represents a critical yet still neglected problem at sites . . . [More] Vapor intrusion of synthetic fuel additives represents a critical yet still neglected problem at sites contaminated by petroleum fuel releases. This study used an advanced numerical model to investigate the vapor intrusion potential of fuel ether oxygenates methyl tert-butyl ether (MTBE), tert-amyl methyl ether (TAME), and ethyl tert-butyl ether (ETBE). Simulated indoor air concentration of these compounds can exceed USEPA indoor air screening level for MTBE (110μg/m(3)). Our results also reveal that MTBE has much higher chance to cause vapor intrusion problems than TAME and ETBE. This study supports the statements made by USEPA in the Petroleum Vapor Intrusion (PVI) Guidance that the vertical screening criteria for petroleum hydrocarbons may not provide sufficient protectiveness for fuel additives, and ether oxygenates in particular. In addition to adverse impacts on human health, ether oxygenate vapor intrusion may also cause aesthetic problems (i.e., odour and flavour). Overall, this study points out that ether oxygenates can cause vapor intrusion problems. We recommend that USEPA consider including the field measurement data of synthetic fuel additives in the existing PVI database and possibly revising the PVI Guidance as necessary.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Extinction limits and flame structures of ETBE, DIPE and TAME non-premixed flames

Authors: Hashimoto, Jun; Hosono, Jun; Shimizu, K; Urakawa, R; Tanoue, K (2017) HERO ID: 4662269

[Less] In this study, extinction limits measurements for Ethyl tert-butyl ether (ETBE), Diisopropyl ether (DIPE) . . . [More] In this study, extinction limits measurements for Ethyl tert-butyl ether (ETBE), Diisopropyl ether (DIPE) and tert-Amyl methyl ether (TAME) non-premixed flames were carried out by using a counterflow burner. Studies were carried out by supplying a fuel diluted with nitrogen from one duct and an oxidizer stream made up of oxygen and nitrogen from the other duct. Flame structures were also measured. Concentrations of sta-ble species were measured by removing gas samples from the reaction zone by using a quartz microprobe and by analyzing them in a gas chromatograph. Temperature profiles were measured by using a thermocouple. Numerical calculations were performed under the same conditions with experiments to validate chemical kinetics and clarify the peculiarity of ether flames. Experimental results for ETBE, DIPE and TAME flames showed almost the same strain rate at extinction, a 2, E, at same stoichiometric mixture fraction, Z st, and an equilibrium temperature. Comparisons among ether flames having a different carbon number showed that the larger the number of carbon atoms is, the smaller the extinction limit is. a 2, E for ether flames decrease once with an increase of Z st at low Z st conditions. After that, they start to increase. Z st expressing the min-imum value of a 2, E becomes smaller with an increase of carbon atom number. The measured profiles of the temperature and major species showed a similar structure for each fuel. Calculated profiles agreed well with experimental data except for minor species. The reproducibility of chemical kinetic computations and variations in extinction limits with Z st were discussed. (C) 2016 by The Combustion Institute. Published by Elsevier Inc.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Optimal Design and Effective Control of the tent-Amyl Methyl Ether Production Process Using an Integrated Reactive Dividing Wall and Pressure Swing Columns

Authors: Yang, Ao; Lv, L; Shen, W; Dong, L; Li, Jie; Xiao, Xin (2017) HERO ID: 4662554

[Less] Design of the tert-amyl methyl ether (TAME) production process has received much attention because TAME . . . [More] Design of the tert-amyl methyl ether (TAME) production process has received much attention because TAME is an important oxygenated gasoline additive with much fewer environmental and health issues than methyl tert-butyl ether. Although a reactive dividing wall column where reaction and separation take place in one vessel has been developed with less capital and operating cost, little work on its application to TAME production has been reported. In this paper, we propose a new overall procedure for optimal design of the TAME production process through an integrated reactive dividing wall and pressure swing columns, which includes screening of the best dividing wall configuration, thermodynamic feasible insight, and process simulation and optimization using the sensitivity analysis tool in Aspen Plus. The computational results demonstrate that the optimal design of the TAME production process through an integrated reactive dividing wall and pressure swing column is successfully obtained to achieve desired TAME purity of 99.958 mol %, significantly reducing the total annualized cost by 43.58% and decreasing the exergy loss by 48.24% compared to the existing TAME production process using reactive distillation. Finally, an effective control strategy including tray temperature control is proposed to ensure the operating conditions are well controlled at or close to their set points in a desired time when disturbances occur.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Speed of sound measurement in ethyl tert-butyl ether and tert-amyl methyl ether by Brillouin light scattering

Authors: Zheng, X; Zhang, Y; He, M (2016) HERO ID: 3486705

[Less] Ethyl tert-butyl ether (ETBE) and tert-amyl methyl ether (TAME) have been considered as the potential . . . [More] Ethyl tert-butyl ether (ETBE) and tert-amyl methyl ether (TAME) have been considered as the potential fuel additives as the replacement of methyl tert-butyl ether (MTBE). Now it is necessary to supplement and perfect the thermophysical properties of oxygenates, including acoustic property. In this paper, speed of sound in ETBE and TAME were measured by Brillouin light scattering from 293.15 K to 680 K and from saturated vapor pressure to 10 MPa, including saturated liquid/vapor, compressed liquid and supercritical region. It is estimated that u (T) = 0.01 K under saturated condition; u (T) = 0.02 K, u (p) = 0.015 MPa for p < 5.5 MPa, u (p) = 0.03 MPa for p > 5.5 MPa under compressed liquid and supercritical conditions; and the relative expended uncertainty in the speed of sound is estimated to be less than 0.5% with coverage factor of k to be 2. Moreover, the reference relations of the speed of sound for saturated liquid, vapor and compressed state are presented for interpolation with the average absolute deviation of 0.23%, 0.07% and 0.33% for ETBE and 0.34%, 0.24% and 0.29% for TAME, respectively. (C) 2015 Elsevier B.V. All rights reserved.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

High-octane additives for automobile gasoline based on D-1 and D-2 alcohols and butane-divinyl fraction from the pyrolysis process

Author: Yunusov, SH (2016) HERO ID: 4662550

[Less] Coalkylation of the the butane-divinyl pyrolysis fraction with C-1 and C-2 monohydroc alcohols has been . . . [More] Coalkylation of the the butane-divinyl pyrolysis fraction with C-1 and C-2 monohydroc alcohols has been studied. The product composition of the alkylation has been determined. It has been shown that the products can be used as high-octane components of motor gasoline along with methyl tert-butyl ether, tert-amyl methyl ether, and other oxygenates.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Methodology for Design of Reactive Distillation Column and Kinetics for Isoamylene Etherification Catalysed by Amberlyst 35

Authors: Wu Yanli; Li Wenying; Li Qiang; Feng Jie (2016) HERO ID: 4662470

[Less] Isoamylene from the Fischer-Tropsch syncrude can be transformed to valuable fuel oxygenate additives . . . [More] Isoamylene from the Fischer-Tropsch syncrude can be transformed to valuable fuel oxygenate additives through an equilibrium limited etherification reaction with methanol. A reactive distillation process is established to increase isoamylene conversion. Facing the challenge of improving product purity at the same time, an equilibrium stage model based design methodology is proposed and illustrated step-by-step for converting the Fischer-Tropsch C-5 olefins to tert-amyl methyl ether (TAME) process by using Aspen Plus. Under the guide of the proposed methodology, the design leads to a TAME product purity of higher than 95% and an isoamylene conversion of higher than 90%. The etherification kinetics over Amberlyst 35 is also studied within a temperature range of 60 degrees C to 75 degrees C to shed more light on the feasibility of process development. The methodology provides an effective reactive distillation column design to achieve the target reactant conversion and product purity simultaneously.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Quaternary, Ternary and Binary LLE Measurements for 2-Methoxy-2-methylbutane plus Furfural plus Acetic Acid plus Water at Temperatures between 298 and 341 K

Authors: Mannisto, M; Pokki, JP; Haapaniemi, H; Alopaeus, V (2016) HERO ID: 4662308

[Less] Measured quaternary and ternary liquid-liquid equilibrium for 2-methoxy-2-methylbutane (tert-amyl methyl . . . [More] Measured quaternary and ternary liquid-liquid equilibrium for 2-methoxy-2-methylbutane (tert-amyl methyl ether, TAME) with furfural, acetic acid, and water are presented in the temperature range between 298 and 341 K. In addition, binary pairs for TAME + water and furfural + water were measured in the range between 298 and 341 K. Results were modeled with UNIQUAC-HOC (Hayden-O'Connell) activity coefficient model and corresponding binary interaction parameters are presented along with measurement data. Solvent suitability for industrial use was assessed for 2-methoxy-2-methylbutane and compared to 2-methoxy-2-methylpropane and other industrial solvents.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Synthesis of tert-amyl methyl ether (TAME) over modified activated carbon catalysts

Authors: Rechnia, P; Malaika, A; Kozlowski, M (2015) HERO ID: 4379666

[Less] Industrial production of ether antiknock substances (e.g. ETBE or TAME) involves the use of catalysts . . . [More] Industrial production of ether antiknock substances (e.g. ETBE or TAME) involves the use of catalysts based mainly on acidic ion-exchange resins. However, the use of such resins causes certain drawbacks leading to technological difficulties and for this reason the search for other catalysts suitable for the purpose is continued. Our studies were focused on the synthesis of tert-amyl methyl ether (TAME) in which different modified activated carbons were tested as catalysts. The modifications were undertaken to introduce sulphonic groups on the surface of activated carbon, as a result of reactions with such reagents as concentrated or fuming sulphuric acid, in situ generated diazonium salt of 4-aminobenzenesulphonic acid or sodium sulphide and hydrogen peroxide. For the sake of comparison, the activated carbon with P-containing and/or O-containing groups on the surface and the commercial catalyst Amberlyst-15 were used. The most effective method of -SO3H groups introduction has been proved to be the reaction of activated carbon with in situ generated diazonium salt. The majority of catalysts obtained were active in tertamyl methyl ether synthesis, however, significant differences in yields of TAME were observed, depending on the method of activated carbon modification. (C) 2015 Elsevier Ltd. All rights reserved.