Packed-Bed Microreactor for Continuous-Flow Adipic Acid Synthesis from Cyclohexene and Hydrogen Peroxide

2013 ◽  
Vol 36 (6) ◽  
pp. 1001-1009 ◽  
Author(s):  
M. Shang ◽  
T. Noël ◽  
Q. Wang ◽  
V. Hessel
2017 ◽  
Vol 148 (2) ◽  
pp. 612-620 ◽  
Author(s):  
Lynda Mouheb ◽  
Leila Dermeche ◽  
Tassadit Mazari ◽  
Siham Benadji ◽  
Nadine Essayem ◽  
...  

Author(s):  
Geoffroy Lesage ◽  
Isariebel Quesada Peñate ◽  
Patrick Cognet ◽  
Martine Poux

Abstract Adipic acid was synthesized by the oxidation of cyclohexene using 30% hydrogen peroxide in a microemulsion in the presence of sodium tungstate as catalyst. The proposed green process is environmentally friendly since catalyst and surfactant are recycled and pure adipic acid is produced in high yield (70% to 79%). Microemulsions are used as a “green solvent” and give a better contact between the phases. Alkyldimethylbenzylammonium chloride (C12-C14) was used as a surfactant for the generation of the microemulsion since it enables the use of harmful organic solvents and phase-transfer catalysts to be avoided. Optimised operating conditions (temperature, reaction time, separation process) have been defined and applied to evaluate the industrial practicability. The main interest of the present work is the easy recovery of pure adipic acid and the reuse of the reaction media (surfactant and catalyst). This shows promise for developing a future green industrial process that will enable greenhouse gas emissions (N2O), among others, to be reduced.


ChemSusChem ◽  
2013 ◽  
Vol 6 (6) ◽  
pp. 978-982 ◽  
Author(s):  
Markus Damm ◽  
Bernhard Gutmann ◽  
C. Oliver Kappe

1985 ◽  
Vol 50 (10) ◽  
pp. 2122-2133 ◽  
Author(s):  
Jindřich Zahradník ◽  
Marie Fialová ◽  
Jan Škoda ◽  
Helena Škodová

An experimental study was carried out aimed at establishing a data base for an optimum design of a continuous flow fixed-bed reactor for biotransformation of ammonium fumarate to L-aspartic acid catalyzed by immobilized cells of the strain Escherichia alcalescens dispar group. The experimental program included studies of the effect of reactor geometry, catalytic particle size, and packed bed arrangement on reactor hydrodynamics and on the rate of substrate conversion. An expression for the effective reaction rate was derived including the effect of mass transfer and conditions of the safe conversion-data scale-up were defined. Suggestions for the design of a pilot plant reactor (100 t/year) were formulated and decisive design parameters of such reactor were estimated for several variants of problem formulation.


2021 ◽  
Vol 510 ◽  
pp. 111705
Author(s):  
Peng Jin ◽  
Huijuan Wei ◽  
Limin Zhou ◽  
Donghui Wei ◽  
Yiqiang Wen ◽  
...  

2020 ◽  
Author(s):  
João Carlos S. Soares ◽  
Arthur Henrique A. Gonçalves ◽  
Fátima M.Z. Zotin ◽  
Lucia R. Raddi de Araújo ◽  
Alexandre B. Gaspar
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document