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CO2 capture using activated carbon synthesized from date stone: breakthrough, equilibrium, and mass-transfer zone

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2021, 31(6), pp.1261-1272
  • DOI : 10.1007/s42823-021-00249-y
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : November 11, 2020
  • Accepted : April 12, 2021
  • Published : December 1, 2021

Danish Mohd 1 Parthasarthy Vijay 1 Al Mesfer Mohammed K. 1

1King Khalid University

Accredited

ABSTRACT

Global warming and climate changes are the ultimate consequences of increased CO2 volume in the air. Physical activation was used to prepare high-throughput activated carbon from a low-cost date stone. The adsorption performance of activated carbon using fxed bed for CO2 separation was studied. The reliance of temperature, fow rate, and initial CO2 concentration levels on breakthrough behaviour was analysed. The adsorption response was explored in terms of breakthrough and saturation points, adsorption capacity, temperature profles, utilization factor, and length of mass-transfer zone. Increased temperatures lead to vary the breakthrough periods notably. The vastly steep breakthrough curves reveal satisfactory utilization of bed capacity. LMTZ is varied positively with increased feed rates and temperatures. The high utilization factor of 0.9738 with 1.66 mmol/g CO2 uptake was acquired at 298 K and 0.25 bars. The fndings recommend that the carbon prepared from date stone is encouraging to capture CO2 from CO2/N2 mixture.

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