TGA investigation of CO2 gasification of hydrothermally treated biomass (corn cob-coconut shell mixture)

Ahmad T. Yuliansyah, Chika O. Putri, Britania D. Clarasinta, Moriyasu Nonaka

Research output: Contribution to journalArticle

Abstract

Gasification is one option for producing cleaner fuel from biomass. A gaseous mixture of H2, CO, CH4, and CO2 is produced through the partial oxidation of biomass with a gasifying agent such as air, pure O2, steam, CO2, or a mixture of these. This method is capable of handling a wide range of inhomogeneous biomass (including forest, agricultural, and organic processing residues) and converting them into a homogeneous gas with a considerably higher level of applicability. In this research, the CO2 gasification of hydrothermally treated biomass has been studied using TGDTA analyzer (Bruker TG DTA 2000SA) apparatus. The biomass treated was a mixture of corn cob and coconut shell (weight ratio of 1:1). This raw biomass was firstly subjected to hydrothermal treatment at three different temperatures (200, 240, and 270°C-denoted as H-200, H-240, and H-270) using a batch autoclave prior to being gasified by CO2 under atmospheric pressure in the TGA apparatus. The experimental results show that the weight loss of hydrochar was resulted mostly from the process of devolatilization (82.92-86.16%). Hydrochar obtained from higher hydrothermal temperatures demonstrated a lower reactivity of gasification, due to the lower amount of moisture and volatile matter. In addition, higher-temperature hydrochar contained lower potassium content and thus shifted the conversion of gasification reaction to a higher temperature.

Original languageEnglish
Pages (from-to)1166-1173
Number of pages8
JournalInternational Journal of Technology
Volume10
Issue number6
DOIs
Publication statusPublished - Jan 1 2019

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Gasification
Biomass
Temperature
Autoclaves
Differential thermal analysis
Atmospheric pressure
Potassium
Corn
Co2
Shell
Steam
Moisture
Oxidation
Processing
Air
Gases

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Strategy and Management
  • Management of Technology and Innovation

Cite this

TGA investigation of CO2 gasification of hydrothermally treated biomass (corn cob-coconut shell mixture). / Yuliansyah, Ahmad T.; Putri, Chika O.; Clarasinta, Britania D.; Nonaka, Moriyasu.

In: International Journal of Technology, Vol. 10, No. 6, 01.01.2019, p. 1166-1173.

Research output: Contribution to journalArticle

Yuliansyah, Ahmad T. ; Putri, Chika O. ; Clarasinta, Britania D. ; Nonaka, Moriyasu. / TGA investigation of CO2 gasification of hydrothermally treated biomass (corn cob-coconut shell mixture). In: International Journal of Technology. 2019 ; Vol. 10, No. 6. pp. 1166-1173.
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