Kinetics and mechanism of reaction between carbon disulfide and novel aqueous amines solutions

YÜKSEL ORHAN Ö., Cihan F. N., Alper E.

INTERNATIONAL JOURNAL OF GLOBAL WARMING, vol.18, no.3-4, pp.401-409, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 18 Issue: 3-4
  • Publication Date: 2019
  • Doi Number: 10.1504/ijgw.2019.101078
  • Journal Name: INTERNATIONAL JOURNAL OF GLOBAL WARMING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.401-409
  • Keywords: carbon disulfide capture, absorption kinetics, stopped flow, cyclic amines, DIOXIDE, CS2, CO2, ABSORPTION, LIQUIDS, CAPTURE, SULFIDE
  • Hacettepe University Affiliated: Yes

Abstract

The mechanism and kinetics of carbon disulfide (CS2) capture by aqueous solutions of well known alkanolamines ([monoethanolamine (MEA) and diethanolamine (DEA)] and novel cyclic mono- and polyamines [morpholine (MRPH), piperazine (PZ), n-methyl piperazine (NMPZ) and n-hydroxyethyl piperazine (NHEPZ)] were investigated by stopped-flow apparatus with conductivity detection. The observed reaction rate constants were obtained for a temperature range of 298.15-313.15 K and it was found that cyclic amines react much faster than others. A modified termolecular reaction mechanism was used to analyse the experimental kinetic data. The activation energies for all systems were also obtained by evaluating the Arrhenius equation.