The future of aromatic chemistry

Franck, Heinz‐Gerhard; Stadelhofer, Jürgen Walter

doi:10.1007/978-3-642-73432-8_16

Cited by 8 publications

(8 citation statements)

References 3 publications

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“…A model of pyrolysis gasoline from severe cracking was prepared following the typical composition of this stream published by Franck and Stadelhofer: benzene (33.8 wt %), toluene (19.4 wt %), xylenes (13.0 wt %), and non‐aromatics (33.9 wt %) . The non‐aromatics compounds were represented in the gasoline model by a 11.3 wt % of n ‐hexane, n ‐heptane, and n ‐octane, whereas the xylenes content was represented by a 13.0 wt % of p‐ xylene in the gasoline model to simplify the analytical procedure.…”

Section: Methodsmentioning

confidence: 99%

“…The aromatic content in these streams is higher than 55 wt %. Specifically, the pyrolysis gasoline from the severe cracking has the highest aromatic content with a 66 wt % . The liquid – liquid extraction is used at industrial scale to remove aromatic hydrocarbons from pyrolysis gasoline using organic solvents, being the UOP sulfolane process the most employed .…”

Section: Introductionmentioning

confidence: 99%

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Dearomatization of pyrolysis gasoline with an ionic liquid mixture: Experimental study and process simulation

et al. 2017

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The pyrolysis gasoline is the main source of benzene, toluene, and xylenes. The dearomatization of this stream is currently performed by liquid–liquid extraction using sulfolane. However, the sulfolane process has high operating costs that could be minimized by employing ionic liquids as solvents because of their non‐volatile character. In this work, we proposed a novel process to perform the dearomatization of pyrolysis gasoline using a binary mixture of 1‐ethyl‐3‐methylimidazolium tricyanomethanide ([emim][TCM]) and 1‐ethyl‐4‐methylpyridinium bis(trifluoromethylsulfonyl)imide ([4empy][Tf2N]) ILs. The composition in the IL mixture was optimized considering their extractive and thermophysical properties. The Kremser method was applied using the experimental data to determine the number of equilibrium stages in the liquid–liquid extractor which provides the same extraction yields of aromatics using the IL mixture that those of the sulfolane process. The recovery section was designed and simulated from the experimental vapor–liquid equilibrium between the hydrocarbons and the IL mixture. © 2017 American Institute of Chemical Engineers AIChE J, 63: 4054–4065, 2017

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dearomatization of pyrolysis gasoline with an ionic liquid mixture: Experimental study and process simulation

et al. 2017

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“…1a). 1 However, it is well known that high consumption of fossil resources associated with growing environmental concerns requires the identification of sustainable alternatives for obtaining fuels, chemicals and functional materials. 2,3 In this context, biomass presents itself as a promising and sustainable source of organic carbon, with great potential for substitution and supplementation of fossil resources accordingly to the fundamental principles of green chemistry.…”

Section: Introductionmentioning

confidence: 99%

Nitrogenated aromatics from chitin

et al. 2023

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“…3 The Friedel-Crafts acylation is a vitally important conversion for industry, as it is used to prepare chemical feedstock, synthetic intermediates, and fine chemicals. 4 …”

Section: Introductionmentioning

confidence: 99%

Friedel–Crafts Acylation with Amides

et al. 2012

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Friedel-Crafts acylation has been known since the 1870s and it is an important organic synthetic reaction leading to aromatic ketone products. Friedel-Crafts acylation is usually done with carboxylic acid chlorides or anhydrides while amides are generally not useful substrates in these reactions. Despite being the least reactive carboxylic acid derivative, we have found a series of amides capable of providing aromatic ketones in good yields (55–96%, 17 examples). We propose a mechanism involving diminished C-N resonance through superelectrophilic activation and subsequent cleavage to acyl cations.

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The future of aromatic chemistry

Cited by 8 publications

References 3 publications

Dearomatization of pyrolysis gasoline with an ionic liquid mixture: Experimental study and process simulation

Dearomatization of pyrolysis gasoline with an ionic liquid mixture: Experimental study and process simulation

Nitrogenated aromatics from chitin

Friedel–Crafts Acylation with Amides

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