Torrefaction of organic municipal solid waste to high calorific value solid fuel using batch reactor with helical screw induced rotation
Document Type
Article
Publication Date
11-1-2022
Abstract
The potential of producing high calorific value (CV) solid fuel was investigated in a helical screw rotation-induced (HSRI) fluidized bed reactor based on mechanical fluidization. The study revealed that the HSRI torrefaction improved the torrefied product properties. For the 40 and 0 rpm conditions, the CV, fixed carbon, and ash contents of torrefied solid fuel increased with an increase in temperature. In contrast, volatile matter, moisture content, mass and energy yields decreased. The CV of torrefied solid fuel increased by a factor of 1.43 and 1.58 at 280 ? for the 40 and 0 rpm conditions, respectively. HSRI torrefaction enhanced the removal of hydroxyl functional group. HSRI torrefaction improved the hydrophobicity of the torrefied solid fuel. Therefore, the HSRI fluidized bed reactor promotes uniform temperature distribution, a higher heat transfer rate within the sample particles in the reactor, and a homogenous torrefied solid product compared to the fixed bed reactor.
Keywords
Torrefaction, Calorific value, Helical screw fluidized bed reactor, Waste valorization, Municipal solid waste, Mechanical fluidization technology
Divisions
sch_che
Funders
Universiti Malaya (IIRG003A-2020FNW)
Publication Title
Bioresource Technology
Volume
363
Publisher
Elsevier
Publisher Location
THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND