Experimental and predicted adsorption isotherms of 2,2,4-trimethylpentane and toluene on activated carbon for industrial applications

Experimental and predicted adsorption isotherms of 2,2,4-trimethylpentane and toluene on... Adsorption isotherms for low concentrations (25–100 ppm) of 2,2,4-trimethylpentane (TMP) on activated carbon were measured at different temperatures (303, 323, and 348 K). In addition, experimental adsorption isotherms for toluene were measured at a single temperature (298 K) and for a wider range of concentrations (5–35,000 ppm) by use of two different gravimetric methods. Because experimental measurements for TMP at low concentrations are time consuming and expensive, it is important to use accurate predictive models capable of taking into account temperature and concentration. In this work, characteristic potential curves for TMP were predicted on the basis of the Polanyi–Dubinin (P–D) model. The curves for TMP were determined by use of a single toluene adsorption isotherm measured at 298 K. For comparison purposes, characteristic curves for TMP were also predicted by use of experimental data for TMP and adsorption isotherms measured at 303, 323, and 348 K. From the characteristic curves, the adsorption isotherms for TMP were then generated at several temperatures (298, 303, 323, and 348 K). The accuracy of the predicted adsorption isotherms were verified by comparison with experimentally measured TMP isotherms. Although the polarity and size of TMP and toluene are slightly different, and despite the different temperatures of the experiments, the P–D model enabled highly accurate prediction of the amount of TMP adsorbed on activated carbon at different temperatures and concentrations. The Langmuir equation was evaluated and shown to work well when used to make predictions within the experimental concentration and temperature ranges. It provided noticeably different estimates when applied to very low concentrations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Experimental and predicted adsorption isotherms of 2,2,4-trimethylpentane and toluene on activated carbon for industrial applications

Loading next page...
Springer Netherlands
Copyright © 2013 by Springer Science+Business Media Dordrecht
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
Publisher site
See Article on Publisher Site


You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.



billed annually
Start Free Trial

14-day Free Trial