The presence of carbon dioxide (CO2) in the gas is not expected because CO2 can reduce heating value and CO2 is the major emission contributor into the atmosphere. Various separation technologies can be used to reduce CO2 content and improve quality of gas. Chemical or reactive absorption is most widely used because it provides higher removal rate. This paper will study the effect of the addition di ethanolamine (DEA) concentration into aqueous 30wt.% potassium carbonate(K2CO3) with reactive absorption method in a reactor packed column at temperature from 40°C to 80°C, DEA concentration range of (1% - 3%) and absorbent flow rate (0.5, 0.75 and 1) L. min1. Contacting the gas and absorbent are countercurrent flow in packed column with 1.5 m high and 50 mm in diameter. The absorption column was randomly packed with a packing material raschig rings 5 mm in diameter. The CO2 loading in the liquid samples was determined by titration. It is found that the best result of CO2 loading is 0.065594 mole/mole K2CO3 and CO2 removal 28%. The result show that the loading capacity (mole CO2/mole K2CO3) and CO2 removal increased with the increase of DEA concentration.

Original languageEnglish
Article number02002
JournalMATEC Web of Conferences
Publication statusPublished - 14 Mar 2018
Event24th Regional Symposium on Chemical Engineering, RSCE 2017 - Semarang, Indonesia
Duration: 15 Nov 201716 Nov 2017


  • Packed column
  • Potassium carbonate
  • Promoted
  • Reactive absorption


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