Modeling downdraft biomass gasification process by restricting chemical reaction equilibrium with Aspen Plus

2017 ◽  
Vol 153 ◽  
pp. 641-648 ◽  
Author(s):  
Jun Han ◽  
Yan Liang ◽  
Jin Hu ◽  
Linbo Qin ◽  
Jason Street ◽  
...  
Keyword(s):  
Chemical Reaction ◽  
Aspen Plus ◽  
Biomass Gasification ◽  
Gasification Process ◽  
Reaction Equilibrium

Simulation of biomass gasification in bubbling fluidized bed reactor using aspen plus®

2021 ◽  
Vol 235 ◽  
pp. 113981
Author(s):  
M. Puig-Gamero ◽  
D.T. Pio ◽  
L.A.C. Tarelho ◽  
P. Sánchez ◽  
L. Sanchez-Silva
Keyword(s):  
Fluidized Bed ◽  
Aspen Plus ◽  
Fluidized Bed Reactor ◽  
Biomass Gasification ◽  
Bubbling Fluidized Bed

Dynamic Modeling for Temperature Prediction in a Fluidized Bed Biomass Gasification Process

2021 ◽  
Author(s):  
Ibtihaj Khurram Faridi ◽  
Evangelos Tsotsas ◽  
Wolfram Heineken ◽  
Marcus Koegler ◽  
Abdolreza Kharaghani
Keyword(s):  
Fluidized Bed ◽  
Dynamic Modeling ◽  
Biomass Gasification ◽  
Temperature Prediction ◽  
Gasification Process

Chemical Reaction Equilibrium

2020 ◽  
pp. 273-306
Author(s):  
Bernardo Carreón-Calderón ◽  
Verónica Uribe-Vargas ◽  
Juan Pablo Aguayo
Keyword(s):  
Chemical Reaction ◽  
Reaction Equilibrium

Energy and Exergy Analysis on Gasification Processes

2015 ◽  
pp. 199-240
Author(s):  
Edgardo Olivares Gómez ◽  
Renato Cruz Neves ◽  
Elisa Magalhães de Medeiros ◽  
Mylene Cristina Alves Ferreira Rezende
Keyword(s):  
Energy Conversion ◽  
Thermodynamic Analysis ◽  
Chemical Reaction ◽  
Exergy Analysis ◽  
Gasification Process ◽  
Efficiency Assessment ◽  
Energy And Exergy ◽  
Thermochemical Processes ◽  
Energy And Exergy Analysis

In recent years, attention has focused on exergy analysis, a type of thermodynamic analysis which is an important tool for the efficiency assessment and the processes optimization when dealing with energy conversion and, particularly, thermochemical processes such as gasification. Thus, this chapter aims to introduce the fundamental concepts of energy and exergy and describe the energy and exergy evaluation tools, elucidating its importance for calculations applied to gasification processes. A case study was performed to show the proposal of energy and exergy analysis. Therefore, a single global gasification chemical reaction was used to represent the gasification process. This analysis can provide a tool to assess and develop models, simulations, calculations, and to optimize real gasification processes. Information and experiences covered in this chapter help to be put into perspective the technology, research and overcoming of challenges.

Energy and Exergy Analysis on Gasification Processes

2017 ◽  
pp. 1613-1646
Author(s):  
Edgardo Olivares Gómez ◽  
Renato Cruz Neves ◽  
Elisa Magalhães de Medeiros ◽  
Mylene Cristina Alves Ferreira Rezende
Keyword(s):  
Energy Conversion ◽  
Thermodynamic Analysis ◽  
Chemical Reaction ◽  
Exergy Analysis ◽  
Gasification Process ◽  
Efficiency Assessment ◽  
Energy And Exergy ◽  
Thermochemical Processes ◽  
Energy And Exergy Analysis

In recent years, attention has focused on exergy analysis, a type of thermodynamic analysis which is an important tool for the efficiency assessment and the processes optimization when dealing with energy conversion and, particularly, thermochemical processes such as gasification. Thus, this chapter aims to introduce the fundamental concepts of energy and exergy and describe the energy and exergy evaluation tools, elucidating its importance for calculations applied to gasification processes. A case study was performed to show the proposal of energy and exergy analysis. Therefore, a single global gasification chemical reaction was used to represent the gasification process. This analysis can provide a tool to assess and develop models, simulations, calculations, and to optimize real gasification processes. Information and experiences covered in this chapter help to be put into perspective the technology, research and overcoming of challenges.

scholarly journals Integrating LCA with Process Modeling for the Energetic and Environmental Assessment of a CHP Biomass Gasification Plant: A Case Study in Thessaly, Greece

Eng ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 2-30
Author(s):  
Ioannis Voultsos ◽  
Dimitrios Katsourinis ◽  
Dimitrios Giannopoulos ◽  
Maria Founti
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Moisture Content ◽  
Process Simulation ◽  
Energy Savings ◽  
Biomass Gasification ◽  
Lower Efficiency ◽  
Technical Parameters ◽  
Gasification Process ◽  
Gasification Plant

The energetic and environmental performance of a cogeneration biomass gasification plant, situated in Thessaly, Greece is evaluated via a methodology combining process simulation and Life Cycle Assessment (LCA). Initially, the gasification process of the most common agricultural residues found in the Thessaly region is simulated to establish the effect of technical parameters such as gasification temperature, equivalence ratio and raw biomass moisture content. It is shown that a maximum gasification efficiency of approximately 70% can be reached for all feedstock types. Lower efficiency values are associated with increased raw biomass moisture content. Next, the gasifier model is up-scaled, achieving the operation of a 1 MWel and 2.25 MWth cogeneration plant. The Life Cycle Assessment of the operation of the cogeneration unit is conducted using as input the performance data from the process simulation. Global Warming Potential and the Cumulative Demand of Non-Renewable Fossil Energy results suggest that the component which had the major share in both impact categories is the self-consumption of electricity of the plant. Finally, the key conclusion of the present study is the quantification of carbon dioxide mitigation and non-renewable energy savings by comparing the biomass cogeneration unit operation with conventional reference cases.

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