Iminodiacetic acid synthesis over Cu/ZrO2 catalyst in a microchannel flow reactor

D. V. Andreev, E. E. Sergeev, A. G. Gribovskii, L. L. Makarshin, S. A. Prikhod'ko, N. Yu Adonin, Z. P. Pai, V. N. Parmon

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Flow microchannel reactor was used to study the synthesis of iminodiacetic acid (IDA) via the catalytic oxidative dehydrogenation of diethanolamine (DEA) over catalyst Cu/ZrO2 (containing copper in amount of 10 mass%) at various residence times, reaction temperature ranging within 160–190 °C. IDA was shown to form in the course of two consecutive reactions through intermediate compound N-(2-hydroxyethyl)glycine (HEG). DEA conversion and IDA yield were found to increase as residence time and reaction temperature grow, meanwhile HEG concentration maximum on kinetic curves shifts towards shorter residence times. Effective reaction rate constants were determined according to the suggested scheme of IDA synthesis. Calculated activation energies for two consecutive stages of IDA synthesis were found to be 73.7 and 67.2 kJ/mol, respectively.

Original languageEnglish
Pages (from-to)899-905
Number of pages7
JournalChemical Engineering Journal
Volume330
DOIs
Publication statusPublished - 15 Dec 2017

Keywords

  • Copper-zirconia catalyst
  • Effective reaction rate constant
  • Iminodiacetic acid
  • Microchannel flow reactor
  • Oxidative dehydrogenation of diethanolamine

Fingerprint

Dive into the research topics of 'Iminodiacetic acid synthesis over Cu/ZrO<sub>2</sub> catalyst in a microchannel flow reactor'. Together they form a unique fingerprint.

Cite this