Mechanism of Homogeneous Condensation in Turbulent Flows

Shmidt, Lev; Shmidt, Joseph L.

doi:10.1080/00986448408911117

Cited by 1 publication

(1 citation statement)

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“…Since a homogeneous condensation requires a certain degree of supersaturation [13], it is possible that at low temperatures not enough condensation nuclei are formed which allow a complete condensing out of excess MA. As such oversaturation is not required for heterogeneous condensation on surfaces [13] and the required oversaturation for homogeneous condensation decreases with increasing fluid velocity and turbulence [14], static mixers were introduced into the tubes of the heat exchanger. The resulting improved condensation and better heat exchange made it possible to achieve an MA content that was independent of volume flow, temperature, and filling level of the receiver tank.…”

Section: Maleic Anhydride Dosingmentioning

confidence: 99%

Millistructured Reactor as Tool for Investigating the Kinetics of Maleic Anhydride Synthesis

Müller

Junge

Mestl

et al. 2019

Chemie Ingenieur Technik

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This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.A nearly isothermal millistructured fixed-bed reactor was used to investigate the kinetics of the selective oxidation of n-butane to maleic anhydride. In addition to the investigation of a broad range of industrially relevant conditions, the focus was on the influence of the reaction products on the kinetics. For this purpose, a saturator for the accurate dosing of the target product MA was developed. The experimental data were used to derive a reaction network comprising the by-products acetic and acrylic acid. Additionally, the inhibition of the associated reactions by reactants and products was investigated.

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Section: Maleic Anhydride Dosingmentioning

confidence: 99%