A5075527852- Thermochemical Biomass Conversion Processes
- Biodiesel Production and Applications
- Coal Combustion and Slurry Processing
- Energy and Environment Impacts
- Catalysis and Hydrodesulfurization Studies
- Biofuel production and bioconversion
- Vehicle emissions and performance
- Advanced Combustion Engine Technologies
- Subcritical and Supercritical Water Processes
- Anaerobic Digestion and Biogas Production
- Advanced Power Generation Technologies
- Combustion and flame dynamics
- Lignin and Wood Chemistry
- Bioenergy crop production and management
- Catalytic Processes in Materials Science
- Municipal Solid Waste Management
- Environmental Impact and Sustainability
- Fiber-reinforced polymer composites
- Catalysis for Biomass Conversion
- Phosphorus and nutrient management
- Forest Biomass Utilization and Management
- Hybrid Renewable Energy Systems
- Zeolite Catalysis and Synthesis
- Adsorption and biosorption for pollutant removal
- Algal biology and biofuel production
University of Leeds
2018-2025
Hydrothermal carbonisation (HTC) can be integrated with anaerobic digestion (AD) for the treatment of digestate, resulting in a solid hydrochar or bio-coal and process water, which recirculated back into AD to produce biogas. The properties digestate-derived hydrochars do not lend themselves producing high quality blending lignocellulosic feedstocks improve its properties. This study investigates co-processing sewage sludge (SS) digestate three biomass (grass, privet hedge, woodchip)....
Abstract The present study addresses the production of hydrochars from brown seaweed ( Fucus serratus ) (FS-HCs), coconut shell (CS-HCs), and oak (Oak-HCs) as potential adsorbents using hydrothermal carbonisation (HTC). effect HTC processing temperature on physicochemical adsorbent characteristics is investigated at different temperatures (200, 220, 250 °C) a batch reactor. Increasing causes formation many spheres in CS-HCs Oak-HCs, increasing their porosity, except FS-HCs. surface area...
Tanzania has a high rural population, of which many rely on off-grid diesel generators to produce electricity. The focus this paper is assess if the waste biomass residues in have sufficient energy potential renewable electrical for small-scale electricity generation using coupled with anaerobic digestion (AD) and/or gasification. gaseous fuel produced can then be used substitute dual gen-sets; thus, providing more affordable whilst reducing dependency fossil fuels. streams estimated are...
This study assesses and characterizes six woody biomass (WB) species commonly harvested in the Republic of Congo: Millettia laurentii (WB1), eetveldeana (WB2), Hymenocardia ulmoides (WB3), Markhamia tomentosa (WB4), Pentaclethra (WB5), acida (WB6). Characterization was performed using proximate analysis with a Thermo Gravimetric Analyser (TGA), ultimate CHNS Analyser, higher heating value (HHV) determination, metal content by X-ray fluorescence (XRF), aboveground (AGB) estimation. The...
The integration of hydrothermal carbonisation (HTC) and anaerobic digestion (AD) can overcome some the disadvantages thermal or biological processing alone. This study aims to investigate integrated HTC-AD across a range strategies HTC temperatures (150 °C, 200 °C 250 °C) improve energy conversion efficiency (ECE) grass, compared AD separation hydrochars (HCs) for combustion process waters (PWs) appears be most energetically feasible strategy, HC HTC-slurry AD. Hydrochars represent greater...
The presence of inorganic salts either as part the substrate or added to reaction medium are known significantly affect pathways during hydrothermal carbonisation (HTC) biomass. This work aims understand influence on by processing cellulose in one more with different valency. Batch experiments and Differential Scanning Calorimetry were used investigate change conversion. effect rate HTC can be correlated Lewis acidity cation basicity anion. anion was pH-dependent than because it protonate...
This study assesses the bioenergy potential of two types aquatic biomass found in Republic Congo: green macroalgae Ulva lactuca (UL) and Ledermanniella schlechteri (LS). Their combustion behaviour was assessed using elemental biochemical analysis, TGA, bomb calorimetry metal analysis. anaerobic digestion determined methane (BMP) tests. The average HHV for LS is 14.1 MJ kg−1, whereas UL lower (10.5 kg−1). Both biomasses have high ash contents would be problematic during thermal conversion due...
Small diesel engines are a common primer for micro and mini-grid systems, which can supply affordable electricity to rural remote areas, especially in developing countries.These generators have no exhaust after-treatment system thus emissions high.This paper investigates the potential of introducing simulated synthetic gas (syngas) small engine explore opportunities widening fuel choices reducing using 5.7kW single cylinder direct injection generator engine.Three different syngas blends...