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Carbon Capture and Utilization Technology to Upgrading Biogas Using Bubble Column Reactor: Effect of Concentration of Ca(OH)2 Solution on CO2 Removal

  • Institut Teknologi Sepuluh Nopember

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

Abstract

The CO2 content in biogas has several effects that need to be considered, such as affecting its calorific value or energy value. The higher the CO2 content, the lower the heating value of the biogas. One way to absorb CO2 is by carbonation using a solution of Ca(OH)2 to become CaCO3. Synthesis of CaCO3 by carbonation to obtain high quality products is still being carried out in terms of phase, morphology, and particle size. Ca(OH)2 slurry was prepared with various concentrations, namely 0.05 M, 0.07 M, and 0.1 M. Scanning Electron Microscopy/Energy Dispersive Spectroscopy (SEM–EDS) and X-Ray Diffraction (XRD) test carried out to analyze the properties of CaCO3. The Precipitated Calcium Carbonate (PCC) crystalline phase at all concentrations is all calcite with scalenohedral morphology. The difference in the concentration of Ca(OH)2 has a significant effect to CO2 absorption and the morphology of PCC. The higher the concentration of Ca(OH)2 slurry, the higher the percentage of CO2 absorption in biogas, but with the effect of likely forming scalenohedral morphology that are commonly used in the paper industry to enhance opacity.

Original languageEnglish
Title of host publicationSmart Innovation in Green and Sustainable Energy - Select Proceedings of ICOME 2023
EditorsSuwarno Suwarno, Triyogi Yuwono, Mohan Kolhe, Muhammad Aziz
PublisherSpringer Science and Business Media Deutschland GmbH
Pages161-170
Number of pages10
ISBN (Print)9789819781966
DOIs
Publication statusPublished - 2025
Event6th International Conference on Mechanical Engineering, ICOME 2023 - Bali, Indonesia
Duration: 30 Aug 202331 Aug 2023

Publication series

NameLecture Notes in Electrical Engineering
Volume1279
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference6th International Conference on Mechanical Engineering, ICOME 2023
Country/TerritoryIndonesia
CityBali
Period30/08/2331/08/23

Keywords

  • Absorption
  • Bubble column
  • CO Reduction
  • Ca(OH) Concentration
  • Precipitated calcium carbonate

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