Article
Green & Sustainable Science & Technology
Mohammad Junaid Khan, Khaled Ali Al-attab, Chan Keng Wai
Summary: This study investigated biomass steam gasification in a new annular reactor design with a gas heating jacket. Different injection configurations and fuel types were tested to evaluate their effects on H2% and tar contamination. The results showed that using a top injector and coconut shells charcoal as fuel yielded the highest H2% and reduced tar contamination.
Article
Energy & Fuels
Lola Azancot, Luis F. Bobadilla, Miguel A. Centeno, Jose A. Odriozola
Summary: This study presents a comprehensive investigation on the reforming reaction of a simulated producer gas stream. The results show that the addition of potassium can mitigate carbon formation and minimize carbon deposits under appropriate reaction conditions. Based on experimental evidence, the Ni-K catalyst is proven to be an excellent candidate for obtaining clean syngas from producer gas reforming.
Article
Thermodynamics
Deepak Kumar Singh, Reetu Raj, Jeewan Vachan Tirkey
Summary: This study focuses on the gasification of waste Madhuca longifolia biomass and the use of a triple fuel CI engine. By optimizing the input parameters using response surface methodology (RSM), the study found the best combination of operating variables for optimal performance. The results provide valuable insights for integrated gasification and triple-fuelled mode CI engines.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Energy & Fuels
W. Beno Wincy, M. Edwin, U. Arunachalam, S. Joseph Sekhar
Summary: The utilization of rice husk can enhance the efficiency of the rice parboiling system, while exergy analysis helps reduce fuel requirements and environmental impact. The study highlights the importance of potential improvement and sustainability index in optimizing the system's performance.
Article
Thermodynamics
Antti Pitkaoja, Jouni Ritvanen
Summary: The study investigates the use of H2O staging and cooling in a circulating fluidised bed gasifier to enhance its chemical reactions and allow for direct adjustment of the gasifier's operating parameters, increasing flexibility in tailoring the composition of the producer gas.
Article
Energy & Fuels
Mateusz Kochel, Mateusz Szul, Tomasz Iluk, Jan Najser
Summary: This study investigates the use of fixed-bed, activated carbon adsorbers for cleaning heavily tar-laden producer gas from biomass gasification. The results indicate that dry adsorption systems are an interesting alternative to wet scrubbers, effectively removing organic compounds from the bed.
Article
Thermodynamics
Prabhakar Sharma, Bhaskor J. Bora
Summary: This study utilizes an oxyhydrogen generator to improve the energy density of the producer gas derived from waste biomass, which is used as a fuel for gas-powered engines along with a small amount of diesel as pilot fuel. The combustion parameters of a diesel engine, including engine load, gaseous fuel flow rate, and injection advance, are investigated and optimized. The optimal operating parameters are determined as 29 degrees crank angle advance, 4.88 bar brake mean effective pressure, and 0.825 litres per minute oxyhydrogen flow rate, resulting in improved combustion and reduced engine emissions except for NOx.
Article
Chemistry, Physical
M. Wnukowski, P. Jamoz, L. Niedzwiecki
Summary: This study aims to investigate the impact of hydrogen on other producer gas compounds during microwave plasma valorization. The results show that the addition of hydrogen improves the conversion of methane and toluene, and changes the distribution of the products. The presence of hydrogen inhibits the conversion of H2S, but does not affect CO and NH3.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Suntorn Suttibak, Athika Chuntanapum
Summary: The study compared producer gas production from rice husks and sawdust in a three-stage gasifier, finding that rice husks are more suitable due to higher gas yields and cold gas efficiencies.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2021)
Article
Energy & Fuels
F. Dashtestani, M. Nusheh, V. Siriwongrungson, J. Hongrapipat, V. Materic, S. Pang
Summary: This study investigated the impact of contaminants in biomass gasification producer gas on the CO2 capture performance of a CaO and Fe2O3 based sorbent material. Experimental results showed effective CO2 capture in the initial stages and a catalytic effect of the sorbent material in removing contaminants from the gas.
Article
Multidisciplinary Sciences
A. Jemila Percy, M. Edwin
Summary: In this study, the performance of a variable compression ratio CI engine fuelled with diesel-producer gas combination derived from rice husk, coconut shell, and rubber shell has been investigated. The experimental results show that the rubber shell powered DF engine showed the maximum diesel savings of 48%, with a higher brake thermal efficiency compared to the other feedstocks. The theoretical model based on finite-time thermodynamics is validated with the experimental findings, and the optimized conditions for maximum brake thermal efficiency and diesel savings are predicted.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Prabhakar Sharma, Avdhesh Kr. Sharma, Deepanraj Balakrishnan, Arthi Manivannan, Wen Yi Chia, Mukesh Kumar Awasthi, Pau Loke Show
Summary: This study aimed to improve the emission and combustion parameters of a dual-fuel combustion engine by using biodiesel/diesel and producer gas as fuels, which resulted in reduced exhaust emissions and minimized environmental impact. The experimental data and Artificial Neural Network prediction model confirmed the effectiveness of this hybrid fuel system.
Article
Green & Sustainable Science & Technology
Abhinav Anand Sinha, Sanjay, Mohd Zahid Ansari, Anoop Kumar Shukla, Tikendra Nath Verma, Tushar Choudhary
Summary: This study investigates the combined use of a gas turbine and solid oxide fuel cell (SOFC). Pine sawdust is used as the gasifier's feedstock, and the produced syngas is processed and used in fuel cells. The energy and exergy analysis of the hybrid system is examined using the first and second laws of thermodynamics. The waste heat from the gas turbine is used to minimize the temperature gradient in the SOFC, and the impact of pressure ratio and turbine inlet temperature is discussed. The maximum thermal efficiency of the suggested hybrid system is found to be 62.12% at a pressure ratio of 4 and turbine inlet temperature of 1250K.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Green & Sustainable Science & Technology
Alejandro Lyons Ceron, Alar Konist, Heidi Lees, Oliver Jarvik
Summary: This paper presents research on the composition of producer gas from the gasification of three woody biomass species, showing that the concentration of combustible gases varies with temperature and equivalence ratio. However, all three wood species exhibited very similar producer gas composition. Higher temperatures enhanced the composition of producer gas, promoting endothermic and exothermic gasification reactions.
Article
Energy & Fuels
Rohit Borooah, Daniele Antolini, Stefano Piazzi, Eleonora Cordioli, Francesco Patuzzi, Marco Baratieri
Summary: The increasing cost of traditional feedstocks for biomass gasification, such as wood, has led to the exploration of low-cost alternatives like forest residues. Forest residues, the materials left on the forest floor after harvesting and management activities, were used as feedstock in a downdraft gasifier coupled with a diesel engine-alternator setup. The study found that the use of forest residues had an impact on the flow behaviors of feedstock and air in the reactor, resulting in unpredictability in process parameters and overall performance of the combined heat and power system.
JOURNAL OF THE ENERGY INSTITUTE
(2023)
