scholarly journals Development of new technology for coal gasification purification and research on the formation mechanism of pollutants

2021 ◽  
Author(s):  
Shu Zheng ◽  
Yixiang Shi ◽  
Zhiqi Wang ◽  
Pengjie Wang ◽  
Gang Liu ◽  
...  
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Power Systems ◽  
Formation Mechanism ◽  
Transition Metal Oxides ◽  
Coal Gasification ◽  
Removal Rate ◽  
New Technology ◽  
Coal Particles ◽  
Gasification Reaction

AbstractCoal-fired power generation is the main source of CO2 emission in China. To solve the problems of declined efficiency and increased costs caused by CO2 capture in coal-fired power systems, an integrated gasification fuel cell (IGFC) power generation technology was developed. The interaction mechanisms among coal gasification and purification, fuel cell and other components were further studied for IGFCs. Towards the direction of coal gasification and purification, we studied gasification reaction characteristics of ultrafine coal particles, ash melting characteristics and their effects on coal gasification reactions, the formation mechanism of pollutants. We further develop an elevated temperature/pressure swing adsorption rig for simultaneous H2S and CO2 removals. The results show the validity of the Miura-Maki model to describe the gasification of Shenhua bituminous coal with a good fit between the predicted DTG curves and experimental data. The designed 8–6–1 cycle procedure can effectively remove CO2 and H2S simultaneously with removal rate over 99.9%. In addition, transition metal oxides used as mercury removal adsorbents in coal gasified syngas were shown with great potential. The techniques presented in this paper can improve the gasification efficiency and reduce the formation of pollutants in IGFCs.

scholarly journals Development of new technology for coal gasification purification and research on the formation mechanism of pollutants

2021 ◽  
Author(s):  
Shu Zheng ◽  
Yixiang Shi ◽  
Zhiqi Wang ◽  
Pengjie Wang ◽  
Gang Liu ◽  
...  
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Power Systems ◽  
Formation Mechanism ◽  
Transition Metal Oxides ◽  
Coal Gasification ◽  
Removal Rate ◽  
New Technology ◽  
Coal Particles ◽  
Gasification Reaction

Abstract Coal-fired power generation is the main source of CO2 emission in China. To solve the problems of declined efficiency and increased costs caused by CO2 capture in coal-fired power systems, an integrated gasification fuel cell (IGFC) power generation technology was developed. The interaction mechanisms among coal gasification and purification, fuel cell and other components are further studied for IGFCs. Towards the direction of coal gasification and purification, we studied gasification reaction characteristics of ultrafine coal particles, ash melting characteristics and their effects on coal gasification reactions, the formation mechanism of pollutants. We further develop an elevated temperature/pressure swing adsorption rig for simultaneous H2S and CO2 removals. The results show the validity of the Miura-Maki model to describe the gasification of Shenhua bituminous coal with a good fit between the predicted DTG curves and experimental data. The designed 8-6-1 cycle procedure can effectively remove CO2 and H2S simultaneously with removal rate over 99.9%. In addition, transition metal oxides used as mercury removal adsorbents in coal gasified syngas were shown with great potential. The techniques presented in this paper can improve the gasification efficiency and reduce the formation of pollutants in IGFCs.

scholarly journals Development of new technology for coal gasification purification and research on the formation mechanism of pollutants

2020 ◽  
Author(s):  
Shu Zheng ◽  
Yixiang Shi ◽  
Zhiqi Wang ◽  
Gang Liu ◽  
Huaichun Zhou
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Formation Mechanism ◽  
Transition Metal Oxides ◽  
Coal Gasification ◽  
Removal Rate ◽  
New Technology ◽  
Interaction Mechanism ◽  
Coal Particles ◽  
Gasification Reaction

Abstract Coal-fired power generation is the main source of CO2 emission in China. To solve the problem of efficiency decline and cost increase caused by CO2 capture of coal-fired power generation, Prof. Peng (Peng and Han 2009) proposed an integrated gasification fuel cell (IGFC) power generation technology. The interaction mechanism of coal gasification purification, fuel cell and other components need to be further study in the IGFC. To develop new technology for coal gasification and purification, we studied gasification reaction characteristics of ultrafine coal particles, ash melting characteristics and effects on coal gasification reaction, the formation mechanism of pollutants and developed an elevated temperature pressure swing adsorption rig for H2S and CO2 simultaneous removal. The results show that the Miura-Maki model appropriate to perform gasification kinetics of Shenhua bituminous coal and the predicted DTG curves fit the experimental data well. The designed 8-6-1 cycle procedure can effectively remove CO2 and H2S simultaneously, and the removal rate is over 99.9%. In addition, the transition metal oxides used as mercury removal adsorbents in coal gasification syngas has great potential. The technique presented in this paper can improve the gasification efficiency and reduce the formation of pollutants for IGFC.

scholarly journals Development of new technology for coal gasification purification and research on the formation mechanism of pollutants

2020 ◽  
Author(s):  
Shu Zheng ◽  
Yixiang Shi ◽  
Zhiqi Wang ◽  
Pengjie Wang ◽  
Gang Liu ◽  
...  
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Formation Mechanism ◽  
Transition Metal Oxides ◽  
Coal Gasification ◽  
Removal Rate ◽  
New Technology ◽  
Interaction Mechanism ◽  
Coal Particles ◽  
Gasification Reaction

Abstract Coal-fired power generation is the main source of CO 2 emission in China. To solve the problem of efficiency decline and cost increase caused by CO 2 capture of coal-fired power generation, Prof. Peng (Peng and Han 2009) proposed an integrated gasification fuel cell (IGFC) power generation technology. The interaction mechanism of coal gasification purification, fuel cell and other components need to be further study in the IGFC. To develop new technology for coal gasification and purification, we studied gasification reaction characteristics of ultrafine coal particles, ash melting characteristics and effects on coal gasification reaction, the formation mechanism of pollutants and developed an elevated temperature pressure swing adsorption rig for H 2 S and CO 2 simultaneous removal. The results show that the Miura-Maki model appropriate to perform gasification kinetics of Shenhua bituminous coal and the predicted DTG curves fit the experimental data well. The designed 8-6-1 cycle procedure can effectively remove CO 2 and H 2 S simultaneously, and the removal rate is over 99.9%. In addition, the transition metal oxides used as mercury removal adsorbents in coal gasification syngas has great potential. The technique presented in this paper can improve the gasification efficiency and reduce the formation of pollutants for IGFC.

scholarly journals Development of catalytic combustion and CO2 capture and conversion technology

2021 ◽  
Author(s):  
Zhibin Yang ◽  
Ze Lei ◽  
Ben Ge ◽  
Xingyu Xiong ◽  
Yiqian Jin ◽  
...  
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Catalytic Combustion ◽  
Coal Gasification ◽  
Solid Oxide ◽  
Multi Scale ◽  
Electrolysis Cells ◽  
Integrated Gasification ◽  
Solid Oxide Electrolysis Cells ◽  
Sofc Stacks

AbstractChanges are needed to improve the efficiency and lower the CO2 emissions of traditional coal-fired power generation, which is the main source of global CO2 emissions. The integrated gasification fuel cell (IGFC) process, which combines coal gasification and high-temperature fuel cells, was proposed in 2017 to improve the efficiency of coal-based power generation and reduce CO2 emissions. Supported by the National Key R&D Program of China, the IGFC for near-zero CO2 emissions program was enacted with the goal of achieving near-zero CO2 emissions based on (1) catalytic combustion of the flue gas from solid oxide fuel cell (SOFC) stacks and (2) CO2 conversion using solid oxide electrolysis cells (SOECs). In this work, we investigated a kW-level catalytic combustion burner and SOEC stack, evaluated the electrochemical performance of the SOEC stack in H2O electrolysis and H2O/CO2 co-electrolysis, and established a multi-scale and multi-physical coupling simulation model of SOFCs and SOECs. The process developed in this work paves the way for the demonstration and deployment of IGFC technology in the future.

Integrated Coal Gasification and Solid Oxide Fuel Cell Systems for Centralized Power Generation

2019 ◽  
Vol 26 (1) ◽  
pp. 305-313 ◽  
Author(s):  
Hossein Ghezel-Ayagh ◽  
Richard Way ◽  
Peng Huang ◽  
Jim Walzak ◽  
Stephen Jolly ◽  
...  
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Coal Gasification ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Cell Systems

scholarly journals Pretreated Landfill Gas Conversion Process via a Catalytic Membrane Reactor for Renewable Combined Fuel Cell-Power Generation

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Zoe Ziaka ◽  
Savvas Vasileiadis
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Process Development ◽  
New Technology ◽  
Landfill Gas ◽  
Research Work ◽  
Processing System ◽  
Carbon Oxide ◽  
Membrane Reactors ◽  
Gaseous Hydrocarbons

A new landfill gas-based reforming catalytic processing system for the conversion of gaseous hydrocarbons, such as incoming methane to hydrogen and carbon oxide mixtures, is described and analyzed. The exit synthesis gas (syn-gas) is fed to power effectively high-temperature fuel cells such as SOFC types for combined efficient electricity generation. The current research work is also referred on the description and design aspects of permreactors (permeable reformers) carrying the same type of landfill gas-reforming reactions. Membrane reactors is a new technology that can be applied efficiently in such systems. Membrane reactors seem to perform better than the nonmembrane traditional reactors. The aim of this research includes turnkey system and process development for the landfill-based power generation and fuel cell industries. Also, a discussion of the efficient utilization of landfill and waste type resources for combined green-type/renewable power generation with increased processing capacity and efficiency via fuel cell systems is taking place. Moreover, pollution reduction is an additional design consideration in the current catalytic processors fuel cell cycles.

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