The Experts below are selected from a list of 2133 Experts worldwide ranked by ideXlab platform
Donna E. Fennell - One of the best experts on this subject based on the ideXlab platform.
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Methane production from Horse Manure and stall waste with softwood bedding.
Bioresource technology, 2012Co-Authors: Brian A. Wartell, Valdis Krumins, Jeffrey Alt, Kathleen Kang, Bryan J. Schwab, Donna E. FennellAbstract:Substantial stall waste is generated from Horses on softwood bedding. The methane potential (G(pot)) of Horse Manure and constructed mixtures of stall waste with softwood bedding was determined at 35°C. G(pot) of 68, 191 and 273 mL/g volatile solids (VS) were estimated for three separate batches of Horse Manure, indicating variability in the material. Cumulative energy production over 20-40 days ranged from 3.11 ± 0.92 to 8.45 ± 5.42 × 10(5)kJ/metric ton wet weight Horse Manure alone, and from 1.69 ± 0.39 to 3.91 ± 0.47 × 10(5)kJ/metric ton wet weight Horse Manure plus softwood stall bedding (mixed at a 1:1 ratio on a VS basis). Softwood bedding was barely degradable and diluted the energy production of the stall waste; however, it did not cause inhibition of methane production from Manure. Manually separated used softwood bedding contained substantial methane potential.
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Anaerobic Digestion Of Equine Stall Waste
2008 Providence Rhode Island June 29 - July 2 2008, 2008Co-Authors: Brian A. Wartell, Valdis Krumins, Jeffrey Alt, Kathleen Kang, Bryan J. Schwab, Robin George, Donna E. FennellAbstract:The goal of this project is to establish technical parameters for anaerobic digestion of equine stall waste either alone or co-mingled with other biomass with application to on-farm or regional facilities. Anaerobic digesters operated in semi-continuous flow and batch mode were established with Horse Manure or Horse Manure plus softwood (pine chip) stall bedding as a feedstock. Initial results indicated that switching the digester feedstock from Horse Manure alone to Horse Manure mixed with softwood bedding resulted in inhibition of methane production in semi-continuous laboratory-scale digesters that had been pre-acclimated on Horse Manure alone. We examined batch methane production potential of Horse Manure alone and Horse Manure combined with fresh softwood bedding to examine further the potential for inhibition of methanogenesis by the presence of the bedding. Batch reactor experiments were run at softwood bedding to Manure ratios of 0.05 to 4 g softwood volatile solids to Horse Manure volatile solids. Methane production was monitored following inoculation with a methanogenic community and incubation for up to 60 days at 35°C. Batch reactors amended with fresh (unused) softwood bedding plus Horse Manure showed no inhibition of methanogenesis relative to controls receiving Horse Manure alone at any loading. On-going work is examining the effect of aged bedding and comparing microbial community profiles between batch reactors exposed to wood and those not exposed to wood to determine whether acclimation is important in digestion of Horse waste mixed with soft wood.
Cheng Tung Chong - One of the best experts on this subject based on the ideXlab platform.
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Multivariate optimisation study and life cycle assessment of microwave-induced pyrolysis of Horse Manure for waste valorisation and management
Energy, 2021Co-Authors: Guo Ren Mong, William Woei Fong Chong, Cheng Tung Chong, Hwai Chyuan Ong, Manh-vu TranAbstract:Abstract The increasing amount of waste generated globally due to industrialisation and economic activities require a proper and efficient waste management route. Turning waste to energy via pyrolysis pathway is a promising solution to reduce the amount of waste while generating useful end products. In the present study, microwave pyrolysis of Horse Manure for the production of bio-fuels and bio-chemicals is conducted and optimised using a lab-scale reactor. Pyrolytic products derived from optimised parameters show that the energy density of bio-char increased by 38.7% with a surface area of 799.57 m2g-1. The bio-oil was found to be enriched with phenolic content while the gaseous product contained high syngas proportion (67.17 vol%). A life cycle assessment (LCA) on the microwave pyrolysis of Horse Manure for a modelled pyrolysis plant located in Peninsula Malaysia has been conducted to evaluate the energy consumption, operation cost and environmental impact of each unit processes involved. Processing of Horse Manure via microwave-induced pyrolysis is demonstrated to be more advantageous as compared to the conventional pyrolysis of swine Manure from the aspects of higher conversion efficiency, lower energy consumption and reduced environmental risk. Overall, the LCA of Horse Manure on microwave pyrolysis shows positive environmental impact as compared to other biowaste treatment methods such as composting and incineration.
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Pyrolysing Horse Manure via Microwave-Induced Heating for Bioenergy Recovery
Chemical engineering transactions, 2020Co-Authors: Guo Ren Mong, William Woei Fong Chong, Su Shiung Lam, Cheng Tung Chong, Farid Nasir AniAbstract:Transforming waste to energy is essential in view of the need to search for greener and more sustainable energy sources. Such transformation of energy is also aligned with the aim of reducing excessive waste generation whilst creating potential biofuel pathways for power generation. In the present study, animal waste in the form of Horse Manure is being used as feedstock to undergo microwave-induced pyrolysis via a fixed-bed pyrolysis rig. The relationship of the pyrolysis parameters such as pyrolysis temperature of 350 and 550 ?C, carrier gas flow rate of 0.5 and 1.5 L/min and ratio of Horse Manure to activated carbon blend of 1:2 and 1:1, with the yield of pyrolysed products is studied. The derived pyrolysis products in the form of solid, liquid and gaseous are characterised and quantified. Result shows that the highest yield of solid, liquid and gaseous products obtained are 78.8 wt%, 24.7 wt% and 34.2 wt%. Solid yield is observed to decrease with increasing pyrolysis temperature while gaseous yield shows a reverse trend. Higher carrier gas flow rate is observed to lower the generation of gaseous and liquid yield while increasing the solid yield. Higher amount of activated carbon within the feedstock is seen to lower the solid yield but increase the gaseous and liquid yields. The liquid yield is found to contain 55.78 wt% of phenolic compounds while gaseous product consists of up to 55 vol% of syngas. The control of the operating conditions in pyrolysis rig enables the production of pyrolysis end products in different phases, generating useful bioenergy and biofertilizer products in the context of circular economy.
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Microwave pyrolysis for valorisation of Horse Manure biowaste
Energy Conversion and Management, 2020Co-Authors: Guo Ren Mong, William Woei Fong Chong, Su Shiung Lam, Cheng Tung Chong, Hwai Chyuan Ong, Farid Nasir AniAbstract:Abstract Biomass-based feedstock is an attractive alternative to fossil fuel due to its sustainability and potential as a clean energy source. The present work focuses on the valorisation of Horse Manure biowaste to produce bioenergy via microwave-assisted pyrolysis technique. The thermal decomposition process is conducted by considering the effects of pyrolysis temperature, catalyst loading and carrier gas flow rate on the yield and quality of end products. The pyrolysed gaseous product contains up to 73.1 vol% of syngas components. The solid biochar obtained contains a heating value of 35.5 MJ/kg with high surface to pore volume ratio. The relatively high specific energy contents of gaseous products and biochar indicate their potential as biofuels. The liquid product is found to contain oxygenated phenolic compound of up to 79.4 wt%. In spite of an overall energy deficit achieved when comparing the total energy of end products with the feedstock, the energy balance analysis indicates the optimum production parameters. The least energy deficit is achieved at the reactive conditions of 350–450 °C and Manure-to-catalyst ratio of 1:1. A reaction mechanism pathway for the pyrolysis of Horse Manure is presented to show the production route for bioenergy and valuable chemicals.
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Kinetic Study of Horse Manure through Thermogravimetric Analysis
Chemical engineering transactions, 2019Co-Authors: Guo Ren Mong, William Woei Fong Chong, Farid Nasir Ani, Su Shiung Lam, Cheng Tung ChongAbstract:Horse Manure contains potential source of bioenergy that can be pyrolysed to obtain bio-oil and synthesis gas. In the present work, Horse Manure samples collected from the Horse stable in Universiti Teknologi Malaysia were analysed through thermogravimetric analysis (TGA) to determine the Arrhenius parameters and thermodynamics properties. TGA was conducted on the Horse Manure at heating rates of 1, 2, 5, 10 °C/min in a nitrogen-filled reactor. The TGA data was analysed by using three different model-free, non-isothermal methods, namely Flynn-Wall-Ozawa (FWO), Kissinger-Akahira-Sunose (KAS) and Kissinger methods. Result shows the temperature for highest conversion of Horse Manure is within the range of 290.2-329.6 K. The Kissinger method shows the overall average activation energy of 148.47 kJ/mol, whereas FWO and KAS methods show the activation energy at different conversional fractions throughout the process with the range of 176.2-293.6 kJ/mol and 175.6-300.1 kJ/mol. Thermodynamic properties including the pre-exponential factor, enthalpy change, free Gibbs energy and entropy of Horse Manure during pyrolysis were also determined.
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pyrolysis characteristics and kinetic studies of Horse Manure using thermogravimetric analysis
Energy Conversion and Management, 2019Co-Authors: Cheng Tung Chong, Guo Ren Mong, William Woei Fong Chong, Farid Nasir Ani, Su Shiung Lam, Hwai Chyuan OngAbstract:Horse Manure is a biowaste with bioenergy recovery potential for heat and power generation. However, there is no kinetics data in literature to date. In this work, a kinetic study of the pyrolysis process of Horse Manure is investigated through the use of thermogravimetric analyses. The samples were heated over a range of temperature from 298 to 927 K with four different heating rates of 1, 2, 5 and 10 K/min. The weight loss was measured by a thermogravimetric analyser in an inert atmosphere. The differential thermal gravimetric (DTG) thermogram shows that the highest reaction rate occurred at between 290.2 and 329.6 °C where the devolatilisation process was initiated to overcome the activation energy barrier of the Manure. The activation energy and pre-exponential factor obtained by the Kissinger method, assumed to be constant throughout the whole pyrolysis process are 149 kJ/mol and 3.3 × 1012 s−1, respectively. The activation energy calculated from the non-isothermal Flynn-Wall-Ozawa (FWO), Kissinger-Akahira-Sunose (KAS) and Friedman methods are 199.3, 200.2 and 194.6 kJ/mol, whereas the pre-exponential values are 9.3 × 1018, 1.8 × 1019 and 3.6 × 1020 s−1, respectively. The kinetic parameters determined based on interval conversional fraction shows good agreement. The high volatile and low ash content in Horse Manure indicates the potential for bioenergy recovery. The results of the kinetic study can be used for modelling devolatilisation and designing thermochemical conversion processes.
Herman Van Den Weghe - One of the best experts on this subject based on the ideXlab platform.
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Upflow anaerobic solid-state (UASS) digestion of Horse Manure: Thermophilic vs. mesophilic performance
Bioresource technology, 2014Co-Authors: Janina Böske, Benjamin Wirth, Felix Garlipp, Jan Mumme, Herman Van Den WegheAbstract:Energetic use of complex lignocellulosic wastes has gained global interest. Thermophilic digestion of Horse Manure based on straw was investigated using the upflow anaerobic solid-state (UASS) process. Increasing the organic loading rate from 2.5 to 5.5 gvs L
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Characteristics of Gas Generation (NH3, CH4, N2O, CO2, H2O) From Horse Manure Added to Different Bedding Materials Used in Deep Litter Bedding Systems
Journal of Equine Veterinary Science, 2011Co-Authors: Felix Garlipp, Engel F. Hessel, Herman Van Den WegheAbstract:The aim of this study was to analyze the influence of Horse Manure added to different bedding materials on the generation of gases (ammonia (NH3), nitrous oxide, carbon dioxide, methane, water vapor) from deep litter bedding under standardized laboratory conditions. Two different types of straw (wheat and rye) and wood shavings were analyzed. The deep litter (substrate) was made of 25 kg of the respective bedding material, 60 kg Horse feces, and 60 L ammonium chloride solution (urea), and spread out in identical chambers over 19 days (n = 3). On days 1, 8, 15, and 19, total nitrogen, total carbon, and dry matter content of the substrate, as well as the pH in 500-g samples, were measured along with. At the end of each test period, the nitrite nitrogen, nitrate nitrogen, and ammonium nitrogen contents of the leachate were analyzed. The wheat straw substrate emitted the highest concentration of NH3 (4.31 mg/m3; P < .0001) and the wood shavings substrate emitted the lowest (1.73 mg/m3; P < .0001); the rye straw substrate generated 3.05 mg/m3. In addition, significant differences occurred during days 1 to 3 with respect to the generation of the gases NH3, methane, nitrous oxide, carbon dioxide, and water vapor, and after the opening of the chamber on day 15. The nitrogen losses through the leachate occurred mainly in the form of nitrate, where the leachate from the wheat straw substrate had a significantly higher amount of nitrate nitrogen (44.56 mg) as compared with the leachates of the rye straw (14.49 mg; P ≤ .0001) and the wood shaving substrates (22.62 mg; P = .0010).
Guo Ren Mong - One of the best experts on this subject based on the ideXlab platform.
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Multivariate optimisation study and life cycle assessment of microwave-induced pyrolysis of Horse Manure for waste valorisation and management
Energy, 2021Co-Authors: Guo Ren Mong, William Woei Fong Chong, Cheng Tung Chong, Hwai Chyuan Ong, Manh-vu TranAbstract:Abstract The increasing amount of waste generated globally due to industrialisation and economic activities require a proper and efficient waste management route. Turning waste to energy via pyrolysis pathway is a promising solution to reduce the amount of waste while generating useful end products. In the present study, microwave pyrolysis of Horse Manure for the production of bio-fuels and bio-chemicals is conducted and optimised using a lab-scale reactor. Pyrolytic products derived from optimised parameters show that the energy density of bio-char increased by 38.7% with a surface area of 799.57 m2g-1. The bio-oil was found to be enriched with phenolic content while the gaseous product contained high syngas proportion (67.17 vol%). A life cycle assessment (LCA) on the microwave pyrolysis of Horse Manure for a modelled pyrolysis plant located in Peninsula Malaysia has been conducted to evaluate the energy consumption, operation cost and environmental impact of each unit processes involved. Processing of Horse Manure via microwave-induced pyrolysis is demonstrated to be more advantageous as compared to the conventional pyrolysis of swine Manure from the aspects of higher conversion efficiency, lower energy consumption and reduced environmental risk. Overall, the LCA of Horse Manure on microwave pyrolysis shows positive environmental impact as compared to other biowaste treatment methods such as composting and incineration.
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Pyrolysing Horse Manure via Microwave-Induced Heating for Bioenergy Recovery
Chemical engineering transactions, 2020Co-Authors: Guo Ren Mong, William Woei Fong Chong, Su Shiung Lam, Cheng Tung Chong, Farid Nasir AniAbstract:Transforming waste to energy is essential in view of the need to search for greener and more sustainable energy sources. Such transformation of energy is also aligned with the aim of reducing excessive waste generation whilst creating potential biofuel pathways for power generation. In the present study, animal waste in the form of Horse Manure is being used as feedstock to undergo microwave-induced pyrolysis via a fixed-bed pyrolysis rig. The relationship of the pyrolysis parameters such as pyrolysis temperature of 350 and 550 ?C, carrier gas flow rate of 0.5 and 1.5 L/min and ratio of Horse Manure to activated carbon blend of 1:2 and 1:1, with the yield of pyrolysed products is studied. The derived pyrolysis products in the form of solid, liquid and gaseous are characterised and quantified. Result shows that the highest yield of solid, liquid and gaseous products obtained are 78.8 wt%, 24.7 wt% and 34.2 wt%. Solid yield is observed to decrease with increasing pyrolysis temperature while gaseous yield shows a reverse trend. Higher carrier gas flow rate is observed to lower the generation of gaseous and liquid yield while increasing the solid yield. Higher amount of activated carbon within the feedstock is seen to lower the solid yield but increase the gaseous and liquid yields. The liquid yield is found to contain 55.78 wt% of phenolic compounds while gaseous product consists of up to 55 vol% of syngas. The control of the operating conditions in pyrolysis rig enables the production of pyrolysis end products in different phases, generating useful bioenergy and biofertilizer products in the context of circular economy.
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Microwave pyrolysis for valorisation of Horse Manure biowaste
Energy Conversion and Management, 2020Co-Authors: Guo Ren Mong, William Woei Fong Chong, Su Shiung Lam, Cheng Tung Chong, Hwai Chyuan Ong, Farid Nasir AniAbstract:Abstract Biomass-based feedstock is an attractive alternative to fossil fuel due to its sustainability and potential as a clean energy source. The present work focuses on the valorisation of Horse Manure biowaste to produce bioenergy via microwave-assisted pyrolysis technique. The thermal decomposition process is conducted by considering the effects of pyrolysis temperature, catalyst loading and carrier gas flow rate on the yield and quality of end products. The pyrolysed gaseous product contains up to 73.1 vol% of syngas components. The solid biochar obtained contains a heating value of 35.5 MJ/kg with high surface to pore volume ratio. The relatively high specific energy contents of gaseous products and biochar indicate their potential as biofuels. The liquid product is found to contain oxygenated phenolic compound of up to 79.4 wt%. In spite of an overall energy deficit achieved when comparing the total energy of end products with the feedstock, the energy balance analysis indicates the optimum production parameters. The least energy deficit is achieved at the reactive conditions of 350–450 °C and Manure-to-catalyst ratio of 1:1. A reaction mechanism pathway for the pyrolysis of Horse Manure is presented to show the production route for bioenergy and valuable chemicals.
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Kinetic Study of Horse Manure through Thermogravimetric Analysis
Chemical engineering transactions, 2019Co-Authors: Guo Ren Mong, William Woei Fong Chong, Farid Nasir Ani, Su Shiung Lam, Cheng Tung ChongAbstract:Horse Manure contains potential source of bioenergy that can be pyrolysed to obtain bio-oil and synthesis gas. In the present work, Horse Manure samples collected from the Horse stable in Universiti Teknologi Malaysia were analysed through thermogravimetric analysis (TGA) to determine the Arrhenius parameters and thermodynamics properties. TGA was conducted on the Horse Manure at heating rates of 1, 2, 5, 10 °C/min in a nitrogen-filled reactor. The TGA data was analysed by using three different model-free, non-isothermal methods, namely Flynn-Wall-Ozawa (FWO), Kissinger-Akahira-Sunose (KAS) and Kissinger methods. Result shows the temperature for highest conversion of Horse Manure is within the range of 290.2-329.6 K. The Kissinger method shows the overall average activation energy of 148.47 kJ/mol, whereas FWO and KAS methods show the activation energy at different conversional fractions throughout the process with the range of 176.2-293.6 kJ/mol and 175.6-300.1 kJ/mol. Thermodynamic properties including the pre-exponential factor, enthalpy change, free Gibbs energy and entropy of Horse Manure during pyrolysis were also determined.
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pyrolysis characteristics and kinetic studies of Horse Manure using thermogravimetric analysis
Energy Conversion and Management, 2019Co-Authors: Cheng Tung Chong, Guo Ren Mong, William Woei Fong Chong, Farid Nasir Ani, Su Shiung Lam, Hwai Chyuan OngAbstract:Horse Manure is a biowaste with bioenergy recovery potential for heat and power generation. However, there is no kinetics data in literature to date. In this work, a kinetic study of the pyrolysis process of Horse Manure is investigated through the use of thermogravimetric analyses. The samples were heated over a range of temperature from 298 to 927 K with four different heating rates of 1, 2, 5 and 10 K/min. The weight loss was measured by a thermogravimetric analyser in an inert atmosphere. The differential thermal gravimetric (DTG) thermogram shows that the highest reaction rate occurred at between 290.2 and 329.6 °C where the devolatilisation process was initiated to overcome the activation energy barrier of the Manure. The activation energy and pre-exponential factor obtained by the Kissinger method, assumed to be constant throughout the whole pyrolysis process are 149 kJ/mol and 3.3 × 1012 s−1, respectively. The activation energy calculated from the non-isothermal Flynn-Wall-Ozawa (FWO), Kissinger-Akahira-Sunose (KAS) and Friedman methods are 199.3, 200.2 and 194.6 kJ/mol, whereas the pre-exponential values are 9.3 × 1018, 1.8 × 1019 and 3.6 × 1020 s−1, respectively. The kinetic parameters determined based on interval conversional fraction shows good agreement. The high volatile and low ash content in Horse Manure indicates the potential for bioenergy recovery. The results of the kinetic study can be used for modelling devolatilisation and designing thermochemical conversion processes.
Farid Nasir Ani - One of the best experts on this subject based on the ideXlab platform.
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Pyrolysing Horse Manure via Microwave-Induced Heating for Bioenergy Recovery
Chemical engineering transactions, 2020Co-Authors: Guo Ren Mong, William Woei Fong Chong, Su Shiung Lam, Cheng Tung Chong, Farid Nasir AniAbstract:Transforming waste to energy is essential in view of the need to search for greener and more sustainable energy sources. Such transformation of energy is also aligned with the aim of reducing excessive waste generation whilst creating potential biofuel pathways for power generation. In the present study, animal waste in the form of Horse Manure is being used as feedstock to undergo microwave-induced pyrolysis via a fixed-bed pyrolysis rig. The relationship of the pyrolysis parameters such as pyrolysis temperature of 350 and 550 ?C, carrier gas flow rate of 0.5 and 1.5 L/min and ratio of Horse Manure to activated carbon blend of 1:2 and 1:1, with the yield of pyrolysed products is studied. The derived pyrolysis products in the form of solid, liquid and gaseous are characterised and quantified. Result shows that the highest yield of solid, liquid and gaseous products obtained are 78.8 wt%, 24.7 wt% and 34.2 wt%. Solid yield is observed to decrease with increasing pyrolysis temperature while gaseous yield shows a reverse trend. Higher carrier gas flow rate is observed to lower the generation of gaseous and liquid yield while increasing the solid yield. Higher amount of activated carbon within the feedstock is seen to lower the solid yield but increase the gaseous and liquid yields. The liquid yield is found to contain 55.78 wt% of phenolic compounds while gaseous product consists of up to 55 vol% of syngas. The control of the operating conditions in pyrolysis rig enables the production of pyrolysis end products in different phases, generating useful bioenergy and biofertilizer products in the context of circular economy.
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Microwave pyrolysis for valorisation of Horse Manure biowaste
Energy Conversion and Management, 2020Co-Authors: Guo Ren Mong, William Woei Fong Chong, Su Shiung Lam, Cheng Tung Chong, Hwai Chyuan Ong, Farid Nasir AniAbstract:Abstract Biomass-based feedstock is an attractive alternative to fossil fuel due to its sustainability and potential as a clean energy source. The present work focuses on the valorisation of Horse Manure biowaste to produce bioenergy via microwave-assisted pyrolysis technique. The thermal decomposition process is conducted by considering the effects of pyrolysis temperature, catalyst loading and carrier gas flow rate on the yield and quality of end products. The pyrolysed gaseous product contains up to 73.1 vol% of syngas components. The solid biochar obtained contains a heating value of 35.5 MJ/kg with high surface to pore volume ratio. The relatively high specific energy contents of gaseous products and biochar indicate their potential as biofuels. The liquid product is found to contain oxygenated phenolic compound of up to 79.4 wt%. In spite of an overall energy deficit achieved when comparing the total energy of end products with the feedstock, the energy balance analysis indicates the optimum production parameters. The least energy deficit is achieved at the reactive conditions of 350–450 °C and Manure-to-catalyst ratio of 1:1. A reaction mechanism pathway for the pyrolysis of Horse Manure is presented to show the production route for bioenergy and valuable chemicals.
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Kinetic Study of Horse Manure through Thermogravimetric Analysis
Chemical engineering transactions, 2019Co-Authors: Guo Ren Mong, William Woei Fong Chong, Farid Nasir Ani, Su Shiung Lam, Cheng Tung ChongAbstract:Horse Manure contains potential source of bioenergy that can be pyrolysed to obtain bio-oil and synthesis gas. In the present work, Horse Manure samples collected from the Horse stable in Universiti Teknologi Malaysia were analysed through thermogravimetric analysis (TGA) to determine the Arrhenius parameters and thermodynamics properties. TGA was conducted on the Horse Manure at heating rates of 1, 2, 5, 10 °C/min in a nitrogen-filled reactor. The TGA data was analysed by using three different model-free, non-isothermal methods, namely Flynn-Wall-Ozawa (FWO), Kissinger-Akahira-Sunose (KAS) and Kissinger methods. Result shows the temperature for highest conversion of Horse Manure is within the range of 290.2-329.6 K. The Kissinger method shows the overall average activation energy of 148.47 kJ/mol, whereas FWO and KAS methods show the activation energy at different conversional fractions throughout the process with the range of 176.2-293.6 kJ/mol and 175.6-300.1 kJ/mol. Thermodynamic properties including the pre-exponential factor, enthalpy change, free Gibbs energy and entropy of Horse Manure during pyrolysis were also determined.
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pyrolysis characteristics and kinetic studies of Horse Manure using thermogravimetric analysis
Energy Conversion and Management, 2019Co-Authors: Cheng Tung Chong, Guo Ren Mong, William Woei Fong Chong, Farid Nasir Ani, Su Shiung Lam, Hwai Chyuan OngAbstract:Horse Manure is a biowaste with bioenergy recovery potential for heat and power generation. However, there is no kinetics data in literature to date. In this work, a kinetic study of the pyrolysis process of Horse Manure is investigated through the use of thermogravimetric analyses. The samples were heated over a range of temperature from 298 to 927 K with four different heating rates of 1, 2, 5 and 10 K/min. The weight loss was measured by a thermogravimetric analyser in an inert atmosphere. The differential thermal gravimetric (DTG) thermogram shows that the highest reaction rate occurred at between 290.2 and 329.6 °C where the devolatilisation process was initiated to overcome the activation energy barrier of the Manure. The activation energy and pre-exponential factor obtained by the Kissinger method, assumed to be constant throughout the whole pyrolysis process are 149 kJ/mol and 3.3 × 1012 s−1, respectively. The activation energy calculated from the non-isothermal Flynn-Wall-Ozawa (FWO), Kissinger-Akahira-Sunose (KAS) and Friedman methods are 199.3, 200.2 and 194.6 kJ/mol, whereas the pre-exponential values are 9.3 × 1018, 1.8 × 1019 and 3.6 × 1020 s−1, respectively. The kinetic parameters determined based on interval conversional fraction shows good agreement. The high volatile and low ash content in Horse Manure indicates the potential for bioenergy recovery. The results of the kinetic study can be used for modelling devolatilisation and designing thermochemical conversion processes.