Article
Energy & Fuels
Armin Okati, Mohammad Reza Khani, Babak Shokri, Eliseu Monteiro, Abel Rouboa
Summary: This article introduces the process of using plasma gasification technology to convert biomass and coal into syngas. A restricted model was developed to accurately predict the amount of methane in the syngas, and various parameters were examined for their effects on the quality of syngas and hydrogen production.
Article
Energy & Fuels
M. Shahabuddin, Sankar Bhattacharya
Summary: The study evaluated the entrained flow co-gasification of coal and biomass through thermodynamic equilibrium modeling. It was observed that the lower heating value (LHV) and cold gas efficiency (CGE) increase with temperature until reaching steady state, and pressure has a dominant effect on syngas composition at non-steady state conditions. A blend of 50% biomass showed a higher LHV and CGE compared to pure coal, indicating that biomass blending up to 50% favors gasification performance.
Article
Chemistry, Physical
Armin Okati, Mohammad Reza Khani, Babak Shokri, Abel Rouboa, Eliseu Monteiro
Summary: The plasma gasification process is an innovative approach for waste management. This study developed a model based on Gibbs free energy minimization to evaluate the impact of various parameters on gas composition and hydrogen production. The results are particularly relevant for countries with coal reserves.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Thermodynamics
Nabila Aprianti, Muhammad Faizal, Muhammad Said, Subriyer Nasir, Ahmad Fudholi
Summary: Understanding the kinetics and thermodynamics of fine coal gasification is crucial for improving design and optimizing clean energy production. Thermogravimetric analysis was performed to determine the activation energy and thermodynamic parameters. The gasification process followed second-order reaction kinetics and was endothermic. This analysis provides valuable guidance for optimizing the fine coal gasification process.
Article
Agricultural Engineering
J. V. Tirkey, Deepak Kumar Singh
Summary: This study investigates the processing of waste poultry litter pellet biomass for the generation of enriched hydrogen syngas using biomass gasifier. Model validation and sensitivity analysis were performed, and multi-objectives optimization of gasification parameters was carried out using RSM. The results show good agreement and optimized values of key parameters.
BIOMASS & BIOENERGY
(2022)
Article
Energy & Fuels
Maria Pilar Gonzalez-Vazquez, Fernando Rubiera, Covadonga Pevida, Daniel T. Pio, Luis A. C. Tarelho
Summary: This study assessed two thermodynamic equilibrium models for gasification process, indicating that the stoichiometric model provides more accurate predictions of gas composition and gasification efficiency.
Article
Chemistry, Physical
Pali Rosha, Sandeep Kumar, Shruti Vikram, Hussameldin Ibrahim, Ala'a H. Al-Muhtaseb
Summary: This study explores the co-gasification of algae-plastic waste and its impact on syngas composition and carbon conversion efficiency. The simulation results demonstrate that increasing gasifier temperature promotes the formation of H-2 and CO, while plastic loading enhances H-2 production. However, a higher equivalence ratio reduces the yield of H-2 and CO, leading to increased CO2 formation. The synergistic effect of biomass and plastic waste significantly improves the H-2 content and heating value of the gaseous product, making it an energy-efficient renewable fuel.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Thermodynamics
Pali Rosha, Hussameldin Ibrahim
Summary: This study introduces an innovative simulation method for effectively utilizing paper-mill sludge in the production of energy-enriched renewable fuel through co-gasification. A co-gasification model based on Aspen Plus was developed to examine the synergetic effects of biomass and paper-mill sludge co-gasification. The model was validated against experimental data and showed good agreement. Sensitivity analysis revealed optimal conditions for maximum H2, CO, LHV, and CCE content in biomass gasification. The model also showed that co-gasification enhanced the H2 proportion and reduced CO content.
Article
Energy & Fuels
Soumitra Pati, Sudipta De, Ranjana Chowdhury
Summary: This study developed a steady state process simulation of co-gasification of mixed Indian LBs using Aspen plus, and found the optimal combinations for energy and exergy efficiency.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Thermodynamics
Wenqi Zhang, Jianbiao Chen, Hua Fang, Guoxu Zhang, Zhibing Zhu, Wenhao Xu, Lin Mu, Yuezhao Zhu
Summary: In this study, the co-gasification process of bituminous coal and industrial sludge in the downdraft fixed bed gasifier was modeled using Aspen Plus software. The effects of gasification temperature, air equivalent ratio, and steam to BC-IS blends ratio on the gasification characteristics were investigated. The results showed that increasing the gasification temperature improved the syngas content and gasification performance.
Article
Thermodynamics
Changyifan Ren, Dianqi Hu, Yunan Chen, Liejin Guo
Summary: An auto-thermal supercritical water co-gasification system was developed for H2 and heat production from sewage sludge and coal. Thermodynamic analysis and life cycle environmental impact assessment were performed, showing the sensitivity of H2 yield to the proportion of preheated water and dry coal to dry sewage sludge. Adding 21% dry coal was necessary when the system was energy self-sufficient to treat sewage sludge directly.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Biotechnology & Applied Microbiology
Sherif Ishola Mustapha, Usman Aliyu Mohammed, Faizal Bux, Yusuf Makarfi Isa
Summary: This study investigates the hydrothermal gasification of Scenedesmus obliquus microalgae and their derivatives, revealing that temperature, biomass concentration, and feedstock composition significantly impact the composition of gaseous products. Low temperature and high biomass concentration are favorable for methane-rich gas production, while high temperature and low biomass concentration favor hydrogen-rich gas production.
BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
(2021)
Article
Thermodynamics
Mojtaba Ajorloo, Maryam Ghodrat, Jason Scott, Vladimir Strezov
Summary: In this study, an Aspen Plus model was developed to investigate the thermodynamics of plastic/biomass co-gasification. The results showed that steam co-gasification outperforms air and oxygen-gasified processes in terms of gas composition and lower heating value (LHV). Temperature and steam to fuel ratio were found to be the most influential parameters, affecting hydrogen production, gas yield, and carbon conversion efficiency.
Article
Energy & Fuels
Zhongya Kong, Zhihang Zheng, Dongying Tang, Jiayuan Zhang
Summary: A kinetic model of coal gasification in a Texaco gasifier was developed and validated using experimental data. The study evaluated the effects of gasification temperature, gasification agent type, and gasification agent/carbon molar ratio on the composition and characteristics of the resulting syngas. The results provide guidance for optimizing entrained flow gasification and the application of H2O and CO2 gasification technology.
JOURNAL OF ENERGY ENGINEERING
(2022)
Article
Thermodynamics
Mayra Recalde, Amogh Amladi, Vikrant Venkataraman, Theo Woudstra, Purushothaman Vellayani Aravind
Summary: The low cost of electricity in some areas has led to a trend in large-scale storage using high-temperature electrolysis plants, while supercritical water gasification (SCWG) is a promising method for syngas production. By integrating SCWG with reversible solid oxide fuel cells (rSOC), it is possible to simultaneously generate syngas or power and convert wet biomass efficiently.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Energy & Fuels
Laura L. Trinkies, Marlene Crone, Michael Tuerk, Manfred Kraut, Roland Dittmeyer
Summary: In this study, mono- and bimetallic Pd and Pt catalysts were deposited via supercritical fluid reactive deposition (SFRD) on TiO2 coated additively manufactured substrates. The focus of this work was to evaluate the suitability of these catalysts for the direct synthesis of H2O2 in the liquid phase. The results showed that all catalysts exhibited high activity and productivity, with PdPt bimetallic catalysts showing the highest productivity and an increase in Pd loading leading to a decrease in productivity. Comparison with literature data demonstrated the high suitability of the SFRD method for the proposed application, with the added benefits of simplicity and environmental friendliness in catalyst production.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2024)
Article
Energy & Fuels
Xiongbao Hu, Zuguo Shen, Yu Wang
Summary: It is impossible to control the outer wall temperature of the micro-combustor below the maximum allowable temperature of commercial thermoelectric generators simply through increasing the equivalent heat transfer coefficient. Three simple strategies were developed to improve temperature uniformity, yet none of them could ensure full temperature control.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2024)
