Kinetic study of carbon dioxide absorption into glycine promoted diethanolamine (DEA)

Lily Pudjiastuti, Susianto*, Ali Altway, Maria Hestia Ic, Kartika Arsi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

In industry, especially petrochemical, oil and natural gas industry, required separation process of CO2 gas which is a corrosive gas (acid gas). This characteristic can damage the plant utility and piping systems as well as reducing the caloric value of natural gas. Corrosive characteristic of CO2 will appear in areas where there is a decrease in temperature and pressure, such as at the elbow pipe, tubing, cooler and injector turbine. From disadvantages as described above, then it is important to do separation process in the CO2 gas stream, one of the method for remove CO2 from the gas stream is reactive absorption using alkanolamine based solution with promotor. Therefore, this study is done to determine the kinetics constant of CO2 absorption in diethanolamine (DEA) solution using a glycine promoter. Glycine is chosen as a promoter because glycine is a primary amine compound which is reactive, moreover, glycine has resistance to high temperatures so it will not easy to degradable and suitable for application in industry. The method used in this study is absorption using laboratory scale wetted wall column equipment at atmospheric of pressure. This study will to provide the reaction kinetics data information in order to optimize the separation process of CO2 in the industrialized world. The experimental results show that rising temperatures from 303,15 - 328,15 K and the increase of concentration of glycine from 1% - 3% weight will increase the absorption rate of carbon dioxide in DEA promoted with glycine by 24,2% and 59,764% respectively, also the reaction kinetic constant is 1.419 × 1012 exp (-3634/T) (m3/kmol.s). This result show that the addition of glycine as a promoter can increase absorption rate of carbon dioxide in diethanolamine solution and cover the weaknesses of diethanolamine solution.

Original languageEnglish
Title of host publicationInternational Conference of Chemical and Material Engineering, ICCME 2015
Subtitle of host publicationGreen Technology for Sustainable Chemical Products and Processes
EditorsFerry Iskandar, Hadiyanto, Arief Budiman, Hadi Nur, Suryadi Ismadji
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413467
DOIs
Publication statusPublished - 29 Dec 2015
Event2nd International Conference of Chemical and Material Engineering: Green Technology for Sustainable Chemical Products and Processes, ICCME 2015 - Semarang, Indonesia
Duration: 29 Sept 201530 Sept 2015

Publication series

NameAIP Conference Proceedings
Volume1699
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2nd International Conference of Chemical and Material Engineering: Green Technology for Sustainable Chemical Products and Processes, ICCME 2015
Country/TerritoryIndonesia
CitySemarang
Period29/09/1530/09/15

Keywords

  • CO2
  • absorption
  • promoter
  • wetted wall column

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