Deakin University
Browse

File(s) not publicly available

Investigations into distribution and characterisation of products formed during hydrothermal carbonisation of paunch waste

journal contribution
posted on 2022-09-29, 04:33 authored by M H Marzbali, J Paz-Ferreiro, S Kundu, M Ramezani, Pobitra HalderPobitra Halder, S Patel, T White, S Madapusi, K Shah
Paunch waste is the wet waste generated from the cattle/sheep yard, paunch material, skin-shed, boning rooms, blood stream and rendering plant in an abattoir. It contains around 3% solids. It mainly consists of grass, grain, grease, fat, protein, blood, intestinal content, manure and cleaning products. In this study, paunch waste was treated under hydrothermal carbonisation conditions at different temperatures (160 to 240°C), residence time (5-150 min) and initial N2 pressure (10-30 bar) in a laboratory scale 600 mL Parr reactor system. The main objective of this study was to quantify the product distribution and further characterise the products produced from the hydrothermal carbonisation of paunch waste. The product distribution results reveal that higher bio-oil yield was obtained at relatively mild hydrothermal carbonisation conditions which is mainly attributed to fragile nature of paunch waste, higher water, volatile matter and carbohydrate content, and lower lignin and ash content. The resultant hydrochar was found to have higher HHV (∼24.48 MJ kg-1) and BET surface area (68.1 m2g-1) which demonstrates their suitability as a coal substitute (in energy generation processes) or a porous medium (in soil conditioning, remediation or catalysts applications). Biodiesel-like compounds were found in the heavy bio-oil with the HHV of around 38 MJ kg-1. Higher bio-oil production and excellent physico-chemical properties of hydrochar at milder hydrothermal carbonisation conditions have demonstrated significant improvement in the commercial viability of hydrothermal carbonisation of the paunch waste.

History

Journal

Journal of Environmental Chemical Engineering

Volume

9

Issue

1

eISSN

2213-3437

Usage metrics

    Research Publications

    Categories

    No categories selected

    Keywords

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC