Pre-drying of 2-Phase Olive Pomace by Drum Dryer to Improve Processability

Baysan U., Koc M., Gungor A., ERTEKİN F.

WASTE AND BIOMASS VALORIZATION, vol.12, no.5, pp.2495-2506, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 12 Issue: 5
  • Publication Date: 2021
  • Doi Number: 10.1007/s12649-020-01202-2
  • Journal Name: WASTE AND BIOMASS VALORIZATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, CAB Abstracts, Compendex, INSPEC, Veterinary Science Database
  • Page Numbers: pp.2495-2506
  • Keywords: 2-Phase olive pomace, Waste valorization, Drum dryer, Energy efficiency, Optimization
  • Dokuz Eylül University Affiliated: No

Abstract

In this study, the minimum quality loss of 2-phase olive pomace and the maximum system's energy efficiency is targeted during pre-drying of olive pomace in a drum dryer. Vapor pressure and valse rotational speed were selected as the independent variables of drum dryer. For each vapor pressure value (1, 2, 3, 3.5 and 4 bar), drying of 2-phase olive pomace was performed at different valse rotational speeds (0.5, 1, 2, 3, 4.5 and 6 rpm). Drum dryer conditions were optimized with desirability function approach by targeting the moisture content range as 30-50%, minimum peroxide value and maximum specific moisture extraction rate (SMER). The optimum drum dryer conditions were determined as 3.27 bar for vapor pressure and 6 rpm for valse rotational speed. Moreover, the effects of vapor pressure and valse rotational speed on the physical and chemical properties of pre-dried 2-phase olive pomace and the system's energy efficiency were examined. [GRAPHICS] .