Study on biomass derived activated carbons for adsorptive heat pump application

Animesh Pal, Thu Kyaw, Sourav Mitra, Ibrahim I. El-Sharkawy, Bidyut Baran Saha, Hyun Sig Kil, Seong-Ho Yoon, Jin Miyawaki

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Biomasses are renewable resources and suitable precursors for synthesis of activated carbons (ACs). Two biomass sources: (i) Waste Palm Trunk (WPT) and (ii) Mangrove (M) are employed to synthesis activated carbons with huge surface area by chemical activation with potassium hydroxide (KOH). Thermophysical characteristics of the derived activated carbons namely thermal conductivity, particle size distribution, pore size distribution, surface area and pore volume are assessed. The total surface area of WPT-derived AC and mangrove-derived AC are found to be as high as 2927 m2 g−1 and 2924 m2 g−1, respectively. The adsorption capacities of the synthesized biomass-derived ACs for ethanol are evaluated for assorted temperature and pressure conditions. It is observed that WPT-AC shows an ethanol uptake of 1.90 kg kg−1 whilst the M-AC can adsorb up to 1.65 kg kg−1. The isosteric heat of adsorption associated with the present adsorbents/adsorbate (ACs/ethanol) calculated at different coverages showed only marginal difference. For a typical operating condition of adsorption heat pump, both biomass derived ACs showed similar net ethanol uptake which is significantly higher than the net uptake of commercially prevalent Maxsorb III AC.

Original languageEnglish
Pages (from-to)7-19
Number of pages13
JournalInternational Journal of Heat and Mass Transfer
Volume110
DOIs
Publication statusPublished - Jan 1 2017

Fingerprint

heat pumps
activated carbon
biomass
Activated carbon
Biomass
Pumps
Ethanol
ethyl alcohol
Adsorption
adsorption
Hot Temperature
porosity
potassium hydroxides
Potassium hydroxide
Adsorbates
synthesis
adsorbents
particle size distribution
Particle size analysis
Adsorbents

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

Study on biomass derived activated carbons for adsorptive heat pump application. / Pal, Animesh; Kyaw, Thu; Mitra, Sourav; El-Sharkawy, Ibrahim I.; Saha, Bidyut Baran; Kil, Hyun Sig; Yoon, Seong-Ho; Miyawaki, Jin.

In: International Journal of Heat and Mass Transfer, Vol. 110, 01.01.2017, p. 7-19.

Research output: Contribution to journalArticle

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