Predicting the adsorption of second generation biofuels by polymeric resins with applications for in situ product recovery (ISPR)

David Nielsen, Gihan S. Amarasiriwardena, Kristala L J Prather

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

The application of hydrophobic polymeric resins as solid-phase adsorbent materials for the recovery and purification of prospective second generation biofuel compounds, including ethanol, iso-propanol, n-propanol, iso-butanol, n-butanol, 2-methyl-1-butanol, 3-methyl-1-butanol, and n-pentanol, has been investigated. A simple, yet robust correlation has been proposed to model the relative equilibrium partitioning behavior of a series of branched and n-alcohols as a function of their relative hydrophobicity, and has been applied to ultimately predict their adsorption potential. The proposed model adequately predicts the adsorption behavior of the entire series of alcohols studied, as well as with six different adsorbent phases composed of three different polymer matrices. Those resins with a non-polar monomeric structure and high specific surface area provided the highest overall adsorption of each of the studied compounds. Meanwhile, longer chain alcohols were subject to greater adsorption due to their increasingly hydrophobic nature. Among the tested series of alcohols, five-carbon isomers displayed the greatest potential for economical recovery in future, multiphase bioprocess designs. The present study provides the first demonstration of the ability of hydrophobic polymer resins to serve as effective in situ product recovery (ISPR) devices for the production of second generation biofuels.

Original languageEnglish (US)
Pages (from-to)2762-2769
Number of pages8
JournalBioresource Technology
Volume101
Issue number8
DOIs
StatePublished - Apr 2010

Fingerprint

Biofuels
Butenes
biofuel
alcohol
resin
Alcohols
Resins
adsorption
Adsorption
Recovery
1-Propanol
Propanol
Adsorbents
polymer
Butanols
1-Butanol
hydrophobicity
Hydrophobicity
Polymer matrix
Specific surface area

Keywords

  • Adsorption
  • Biofuels
  • In situ product recovery

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal

Cite this

Predicting the adsorption of second generation biofuels by polymeric resins with applications for in situ product recovery (ISPR). / Nielsen, David; Amarasiriwardena, Gihan S.; Prather, Kristala L J.

In: Bioresource Technology, Vol. 101, No. 8, 04.2010, p. 2762-2769.

Research output: Contribution to journalArticle

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