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Projects / Programmes source: ARIS

Tehnological and ecological optimization of the furfural production

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Research activity

Code Science Field Subfield
2.02.02  Engineering sciences and technologies  Chemical engineering  Separation processes 

Code Science Field
T350  Technological sciences  Chemical technology and engineering 
Keywords
furfural production, optimization of, acidic wastewater, recovery of acetic acid, alternative isolation processes, adsorption of acetic acid from dilute solutions, extraction of acetic acid, Alamine 336 in 1-octanole and kerosene, wastewater treatment
Evaluation (rules)
source: COBISS
Evaluation of bibliographic research performance indicators according to ARIS methodology
Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
source: WoS source: Scopus source: COBISS
Researchers (3)
no. Code Name and surname Research area Role Period No. of publications
1.  06259  PhD Ljudmila Fele Žilnik  Chemical engineering  Head  1999  226 
2.  03586  MSc Muharem Husič  Chemical engineering  Researcher  1999  163 
3.  17284  Bojan Robič    Researcher  1998 - 1999  3 
Organisations (1)
no. Code Research organisation City Registration number No. of publications
1.  0104  National Institute of Chemistry  Ljubljana  5051592000  21,023 
Abstract
A considerable effort has been directed to optimize tehnological and ecological aspects in the steam hydrolysis of pentosans to furfural from the processed chestnut hardwood. The main objective of the study was to increase the furfural yield in Tanin Sevnica production plant. The main requirements of the optimization process were to minimize the investment costs and to increase the acetic acid concentration in wastewater, leaving the bottom of the furfural distillation column. The results of the catalitic hydrolysis in the temperature range between 150°C and 180°C are presented. Three different concentrations of sulfuric (VI) acid with different steam flows are used. The key parameters of the hydrolysis are identified and the improvements of the tehnological process are proposed. The second objective of the study is the recovery of acetic acid from the wastewater in the form of acetate. Two alternative isolation processes are proposed. The first one is the extraction process using Alamine 336 in 1-octanole and kerosene as a solvent, followed by reextraction using the sodium hydroxide solution. The second one is the adsorption process of acetic acid on Lewatit MP 64, followed by the elution with sodium hydroxide solution.
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