학술논문
Comparison Study on the Water-to-Biomass Ratio in Hydrothermal Carbonization of Fresh Seaweed
Document Type
Academic Journal
Source
Processes. April 2023, Vol. 11 Issue 4
Subject
Language
English
ISSN
2227-9717
Abstract
Author(s): Sepideh Soroush [1,2]; Frederik Ronsse [2]; Jihae Park [3]; Philippe M. Heynderickx (corresponding author) [1,2,*] 1. Introduction Hydrothermal carbonization (HTC) is an energy-efficient thermochemical conversion process to convert biowaste [...]
Upgrading wet biomass to char via hydrothermal carbonization is a promising method to produce valuable resources for adsorption of organic impurities. In this work, a fresh green seaweed, Ulva pertusa, was investigated to demonstrate the effects of pre-drying and pre-washing on the process and the hydrochar production. Surface moisture and bound moisture were found to affect this process. Hydrochar produced from fresh seaweed with additional water showed similar adsorption capacity to fresh seaweed without additional water and 38% higher than hydrochar from soaked dry seaweed. This was supported by FTIR spectra analysis, which showed that these hydrochars produced from fresh seaweed without additional water have the highest proportion of carboxyl functional groups.
Upgrading wet biomass to char via hydrothermal carbonization is a promising method to produce valuable resources for adsorption of organic impurities. In this work, a fresh green seaweed, Ulva pertusa, was investigated to demonstrate the effects of pre-drying and pre-washing on the process and the hydrochar production. Surface moisture and bound moisture were found to affect this process. Hydrochar produced from fresh seaweed with additional water showed similar adsorption capacity to fresh seaweed without additional water and 38% higher than hydrochar from soaked dry seaweed. This was supported by FTIR spectra analysis, which showed that these hydrochars produced from fresh seaweed without additional water have the highest proportion of carboxyl functional groups.