Abstract
BACKGROUND: 5-hydroxymethylfurfural (5-HMF), the major by-product in hydrolyzates from lignocelluloses and algal biomass, is known as an inhibitor of several microorganisms as well as a promising precursor for biorefinery. In this study, the feasibility of 5-HMF sequestration was investigated using granular activated carbon (GAC) as the adsorbent. RESULTS: Equilibria for the 5-HMF adsorption onto GAC were derived. Positive isosteric heat values showed the reaction was exothermic and favored at low temperature. The pseudo-second order dynamics and the estimated activation energy, 227.4 kJ mol-1, implied that the removal mechanism would be chemical adsorption. The adsorption was not interfered with by the presence of sugar and sugar compounds were not adsorbed onto GAC. CONCLUSION: Batch and column tests on dilute acid hydrolyzate of red algal biomass showed that GAC adsorption would be a feasible option for sequestration of 5-HMF in hydrolyzate for the biofuel and biorefinery industries.
| Original language | English |
|---|---|
| Pages (from-to) | 1157-1163 |
| Number of pages | 7 |
| Journal | Journal of Chemical Technology and Biotechnology |
| Volume | 91 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2016 Apr 1 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2016 Society of Chemical Industry.
Keywords
- Adsorption
- Algae
- Biomass
- Char
- Detoxification
- Pretreatment
ASJC Scopus subject areas
- Biotechnology
- General Chemical Engineering
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Waste Management and Disposal
- Pollution
- Organic Chemistry
- Inorganic Chemistry
