DISTILLATION | Azeotropic Distillation

Lee, F.-M.; Wytcherley, Randi Wright

doi:10.1016/b0-12-226770-2/00681-5

Cited by 5 publications

(5 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The relative volatility of the ethylbenzene/styrene mixture decreases with increasing organic solvent/IL ratio for both co-solvents, which can be explained by the lower selectivity of the organic co-solvents for the ethylbenzene/styrene mixture [12]. NMP has a lower selectivity than sulfolane for the ethylbenzene/styrene mixture, which corresponds to literature data [21]. An organic solvent/IL mass ratio of 0.1 was selected for both organic solvents to be able make a first estimate of the heat duty requirements using distillation as the recovery technology.…”

Section: Distillation With Nmp/il and Sulfolane/il Blendsupporting

confidence: 85%

“…The organic co-solvent will lower the selectivity of the IL for the ethylbenzene/styrene mixture and some extra stages should be added to the top of the column to avoid contamination of the top product. In this study, sulfolane and N-methylpyrrolidinone (NMP) have been selected as co-solvents, because sulfolane and NMP increase the relative volatility of the ethylbenzene/styrene mixture up to 2.3 [4] and 1.8-2 [21], respectively. Therefore, both co-solvents do not strongly influence the selectivity of the IL for the ethylbenzene/styrene mixture.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Solute recovery from ionic liquids: A conceptual design study for recovery of styrene monomer from [4-mebupy][BF4]

Jongmans

Trampé

Schuur

et al. 2013

Chemical Engineering and Processing: Process Intensification

View full text Add to dashboard Cite

Section: Distillation With Nmp/il and Sulfolane/il Blendsupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Solute recovery from ionic liquids: A conceptual design study for recovery of styrene monomer from [4-mebupy][BF4]

Jongmans

Trampé

Schuur

et al. 2013

Chemical Engineering and Processing: Process Intensification

View full text Add to dashboard Cite

“…Remarkable, almost every product on the market contains chemicals that went through a distillation column. Along with the conventional distillation of binary and multi‐component mixtures, several additional methods were developed for breaking azeotropes or close boiling mixtures: pressure swing distillation (PSD), azeotropic and extractive distillation – topics covered in several books and reviews …”

Section: Introductionmentioning

confidence: 99%

Distillation technology – still young and full of breakthrough opportunities

Kiss

2013

J of Chemical Tech & Biotech

230

144

View full text Add to dashboard Cite

Throughout history, distillation has been the most widespread separation method. However, despite its simplicity and flexibility, distillation still remains very energy inefficient. Novel distillation concepts based on process intensification, can deliver major benefits, not just in terms of significantly lower energy use, but also in reducing capital investment and improving eco-efficiency. While very likely to remain the separation technology of choice for the next decades, there is no doubt that distillation technology needs to make radical changes in order to meet the demands of the energy-conscious modern society. This article aims to show that in spite of its long age, distillation technology is still young and full of breakthrough opportunities. Moreover, it provides a broad overview of the recent developments in distillation based on process intensification principles, for example heat pump assisted distillation (e.g. vapor compression or compression-resorption), heat-integrated distillation column, membrane distillation, HiGee distillation, cyclic distillation, thermally coupled distillation systems (Petlyuk), dividingwall column, and reactive distillation. These developments as well as the future perspectives of distillation are discussed in the context of changes towards a more energy efficient and sustainable chemical process industry. Several key examples are also included to illustrate the astonishing potential of these new distillation concepts to significantly reduce the capital and operating cost at industrial scale.

show abstract

“…With respect to economic efficiency, it is important that esters can be purified using industrial processes. Lee et al [58] studied the separation of acetic acid, water, and esters through azeotropic distillation. A commercial-scale process was designed, and they reported the separation of high-purity esters using n-heptane as an entrainer.…”

Section: Enzyme Reusementioning

confidence: 99%

Novel and Efficient Synthesis of Phenethyl Formate via Enzymatic Esterification of Formic Acid

et al. 2020

View full text Add to dashboard Cite

Current methods for the production of esters, including chemical synthesis and extraction from natural sources, are hindered by low yields and environmental pollution. The enzymatic synthesis of these compounds could help overcome these problems. In this study, phenethyl formate, a commercially valuable formate ester, was synthesized using commercial immobilized lipases. The effects of specific enzymes, enzyme concentration, formic acid:phenethyl alcohol molar ratio, temperature, and solvent were studied in order to optimize the synthesis conditions, which were identified as 15 g/L of Novozym 435 enzyme, a 1:5 formic acid:phenethyl alcohol molar ratio, a 40 °C reaction temperature, and 1,2-dichloroethane as the solvent. Under these conditions, phenethyl formate was obtained in a conversion yield of 95.92%. In addition, when 1,2-dichloroethane was replaced with toluene as the solvent, the enzyme could be recycled for at least 20 reactions with a steady conversion yield above 92%, testifying to the economic aspects of the process. The enzymatic synthesis of phenethyl formate using the proposed method is more environmentally friendly than methods currently employed in academic and laboratory settings. Moreover, the method has the potential to enhance the value-added properties of formic acid owing to its downstream use in the production of commercially essential esters.

show abstract

DISTILLATION | Azeotropic Distillation

Cited by 5 publications

References 1 publication

Solute recovery from ionic liquids: A conceptual design study for recovery of styrene monomer from [4-mebupy][BF4]

Solute recovery from ionic liquids: A conceptual design study for recovery of styrene monomer from [4-mebupy][BF4]

Distillation technology – still young and full of breakthrough opportunities

Novel and Efficient Synthesis of Phenethyl Formate via Enzymatic Esterification of Formic Acid

Contact Info

Product

Resources

About