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A review on research and development of iron-based sorbents for removal of hydrogen sulfide from hotcoal gases

Jianglong YU, Liping CHANG, Fan LI, Kechang XIE

《化学科学与工程前沿（英文）》 2010年 第4卷 第4期   页码 529-535 doi: 10.1007/s11705-010-0519-4

摘要： In poly-generation and integrated gasification-combined cycle (IGCC) systems for clean energy conversion, it is essential to remove impurities such as sulfur species from hot coal gases prior to entering the subsequent units. This paper provides a comprehensive review on previous studies on high temperature removal of hydrogen sulfide from high temperature coal gases using iron-based sorbents. A two-step desulphurization process for hot coal gas cleanup is highlighted, which is integrated with direct production of elemental sulfur during regeneration of iron-based sorbents in the primary desulphurization step. Different kinetic modeling approaches for sulfidation and regeneration were compared. Limited research on activated carbon supported sorbents was also briefly summarized.

关键词： hot coal gas cleanup     iron-based sorbents     sulfidation     regeneration     sulphur recovery    

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Desulfurization performance of iron-manganese-based sorbent for hot coal gas

Xiurong REN, Weiren BAO, Fan LI, Liping CHANG, Kechang XIE

《化学科学与工程前沿（英文）》 2010年 第4卷 第4期   页码 429-434 doi: 10.1007/s11705-010-0504-y

摘要： A series of iron-manganese-based sorbents were prepared by co-precipitation and physical mixing method, and used for H S removal from hot coal gas. The sulfidation tests were carried out in a fixed-bed reactor with space velocity of 2000 h (STP). The results show that the suitable addition of manganese oxide in iron-based sorbent can decrease H S and COS concentration in exit before breakthrough due to its simultaneous reaction capability with H S and COS. Fe O and MnO are the initial active components in iron-manganese-based sorbent, and FeO and Fe are active components formed by reduction during sulfidation. The crystal phases of iron affect obviously their desulfurization capacity. The reducibility of sorbent changes with the content of MnO in sorbent. S7F3M and S3F7M have bigger sulfur capacities (32.68 and 32.30 gS/100 g total active component), while S5F5M has smaller sulfur capacity (21.92 gS/100 g total active component). S7F3M sorbent has stable sulfidation performance in three sulfidation-regeneration cycles and no apparent structure degradation. The sulfidation performance of iron- manganese-based sorbent is also related with its specific surface area and pore volume.

关键词： iron-manganese-based sorbent     sulfidation performance     regeneration     hot coal gas    

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Sensitivity analysis of a methanol and power polygeneration system fueled with coke oven gas and coalgas

Guoqiang ZHANG, Lin GAO, Hongguang JIN, Rumou LIN, Sheng LI

《化学科学与工程前沿（英文）》 2010年 第4卷 第4期   页码 491-497 doi: 10.1007/s11705-010-0511-z

摘要： The sensitivity analysis of a polygeneration energy system fueled with duo fuel of coke oven gas and coal gas is performed in the study, and the focus is put on the relations among syngas composition, conversation rate and performance. The impacts of the system configuration together with the fuel composition on the performance are investigated and discussed from the point of cascading utilization of fuel chemical energy. First, the main parameters affecting the performance are derived along with the analysis of the system configuration and the syngas composition. After the performance is being simulated by means of the Aspen Plus process simulator of version 11.1, the variation of the performance due to the composition of syngas and the conversion rate of chemical subsystem is obtained and discussed. It is obtained from the result that the proper conversion rate of the chemical subsystem according to the specific syngas composition results in better performance. And the syngas composition affects the optimal conversion rate of the chemical subsystem, the optimal point of which is around the stoichiometric composition for methanol production (CO/H = 0.5). In all, the polygeneration system fueled with coke oven gas and coal gas, which can realize the reasonable conversion of syngas to power and chemical product according to the syngas composition, is a promising method for coal energy conversion and utilization.

关键词： duo fuel of coke oven gas and coal gas     polygeneration of power and methanol     sensitivity analysis     the relation among energy utilization     syngas composition and chemical conversion rate    

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Life cycle assessment and economic analysis of HFC-134a production from natural gas compared with oil-basedand coal-based production

《化学科学与工程前沿（英文）》 2022年 第16卷 第12期   页码 1713-1725 doi: 10.1007/s11705-022-2210-y

摘要： China is the largest producer and consumer of HFC-134a (1,1,1,2-tetrafluoroethane) in the world. Coal-based route is mainly adopted to produce HFC-134a, which suffers from large waste and CO2 emissions. Natural gas is a low-carbon and clean energy resource, and no research has been found on the environment and economy of producing HFC-134a from natural gas. In this study, CML 2001 method was used to carry out the life cycle assessment of natural gas (partial oxidation)-based and natural gas (plasma cracking)-based routes (abbreviated as gas(O)-based and gas(P)-based routes, respectively), and their environmental performances were compared with coal-based and oil-based routes. Meanwhile, considering that China is vigorously promoting the transformation of energy structure, and the application of electric heating equipment to replace fossil-based heating equipment in industrial field, which has a great impact on the environmental performance of the production processes, the authors conducted a scenario analysis. The results showed that the gas(O)-based route had the most favourable environmental benefits. However, the gas(P)-based route had the highest potential for reducing environmental burdens, and its environmental benefit was the most favourable in scenario 2050. Additionally, the economic performance of the gas(P)-based route was significantly better than that of gas(O)-based and coal-based routes.

关键词： life cycle assessment     economic performance     HFC-134a     natural gas     oil     coal    

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Analysis of Flue Gas Pollutants Deep-removal Technology in Coal-fired Power Plants

Xiao-lu Zhang

《工程管理前沿（英文）》 2014年 第1卷 第4期   页码 336-340 doi: 10.15302/J-FEM-2014061

摘要： In recent years, frequent haze has made PM become a public hotspot. PM control has been added to the 2012 release “ambient air quality standard.” Currently flue gas pollutant control technology does not easily remove PM . Developing Flue Gas Pollutant Deep-removal Technology (DRT) for coal-fired power plants for deep-removing pollutants such as PM , SO , SO , and heavy metals, is an urgent problem. Based on the analysis of the necessity and existing problems of developing DRT suitable for China, this study focused on PM removal technology, low NO emission of ultra supercritical boiler under all load conditions, and the adaptability of SCR working temperature. Finally, the flue gas pollutant removal system at a 2×660MW supercritical power plant was introduced, and the roadmap for developing DRT for 1,000MW ultra supercritical units was analyzed.

关键词： Coal-fired power plant     flue gas pollutants     deep-removal     PM2.5 removal    

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Approach and potential of replacing oil and natural gas with coal in China

Junjie LI, Yajun TIAN, Xiaohui YAN, Jingdong YANG, Yonggang WANG, Wenqiang XU, Kechang XIE

《能源前沿（英文）》 2020年 第14卷 第2期   页码 419-431 doi: 10.1007/s11708-020-0802-0

摘要： China’s fossil energy is characterized by an abundance of coal and a relative lack of oil and natural gas. Developing a strategy in which coal can replace oil and natural gas is, therefore, a necessary and practical approach to easing the excessive external dependence on oil and natural gas. Based on the perspective of energy security, this paper proposes a technical framework for defining the substitution of oil and natural gas with coal in China. In this framework, three substitution classifications and 11 industrialized technical routes are reviewed. Then, three scenarios (namely, the cautious scenario, baseline scenario, and positive scenario) are developed to estimate the potential of this strategy for 2020 and 2030. The results indicate that oil and natural gas replaced by coal will reach 67 to 81 Mt and 8.7 to 14.3 Gm in 2020 and reach 93 to 138 Mt and 32.3 to 47.3 Gm in 2030, respectively. By implementing this strategy, China’s external dependence on oil, natural gas, and primary energy is expected to be curbed at approximately 70%, 40%, and 20% by 2030, respectively. This paper also demonstrates how coal, as a substitute for oil and natural gas, can contribute to carbon and pollution reduction and economic cost savings. It suggests a new direction for the development of the global coal industry and provides a crucial reference for energy transformation in China and other countries with similar energy situations.

关键词： coal replacing oil and natural gas     energy security     external dependence     energy strategy     China    

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A review on transport of coal seam gas and its impact on coalbed methane recovery

Geoff G.X. WANG, Xiaodong ZHANG, Xiaorong WEI, Xuehai FU, Bo JIANG, Yong QIN

《化学科学与工程前沿（英文）》 2011年 第5卷 第2期   页码 139-161 doi: 10.1007/s11705-010-0527-4

摘要： This paper presents a summary review on mass transport of coal seam gas (CSG) in coal associated with the coalbed methane (CBM) and CO geo-sequestration enhanced CBM (CO -ECBM) recovery and current research advances in order to provide general knowledge and fundamental understanding of the CBM/ECBM processes for improved CBM recovery. It will discuss the major aspects of theory and technology for evaluation and development of CBM resources, including the gas storage and flow mechanism in CBM reservoirs in terms of their differences with conventional natural gas reservoirs, and their impact on CBM production behavior. The paper summarizes the evaluation procedure and methodologies used for CBM exploration and exploitation with some recommendations.

关键词： mass transport     coal seam gas (CSG)     coalbed methane (CBM)     coal     CBM recovery     carbon dioxide storage    

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The R&D of Flue Gas Pollutants Deep-Removal Technology for Coal-fired Power Plants

Xiao-lu Zhang

《工程管理前沿（英文）》 2015年 第2卷 第4期   页码 359-363 doi: 10.15302/J-FEM-2015057

摘要： The flue gas pollutants deep-removal technology (DRT) focusing on PM removal is the prime method of further reducing pollutants emission from coal-fired power plants. In view of the four key technological challenges in developing the DRT, studies were conducted on a series of purification technologies and the DRT was developed and successfully applied in 660 MW and 1000 MW coal-fired units. This paper analyzes the application results of the demonstration project, and proposes a roadmap for the follow-up researches and optimizations.

关键词： coal-fired power plant     pollutants emission reduction     PM2.5     flue gas pollutants     deep-removal    

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Optimization of Venturi tube design for pipeline pulverized coal flow measurements

WU Zhansong, XIE Fei

《能源前沿（英文）》 2008年 第2卷 第4期   页码 369-373 doi: 10.1007/s11708-008-0072-8

摘要： A Venturi flow meter was designed to accurately measure the mass flow rate of pulverized coal in power plant pipelines. Numerical simulations of the dilute turbulent gas-solid two-phase flow in a horizontal Venturi tube were used to study the effects of Venturi tube geometry on the pressure distribution in the mixture. The results show that Venturi tube geometry strongly influences the metering of the dilute gas-particle two-phase flow. The geometry can be optimized to improve the precision of the measurement and ensure stable measurements. Furthermore, the geometries of three types of Venturi tubes were optimized for an experimental study of pulverized coal mass flow rate measurements.

关键词： gas-solid two-phase     geometry     gas-particle two-phase     Numerical     flow    

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Influence of mass air flow ratio on gas-particle flow characteristics of a swirl burner in a 29 MW pulverizedcoal boiler

Rong YAN, Zhichao CHEN, Shuo GUAN, Zhengqi LI

《能源前沿（英文）》 2021年 第15卷 第1期   页码 68-77 doi: 10.1007/s11708-020-0697-9

摘要： In a gas/particle two-phase test facility, a three-component particle-dynamics anemometer was used to measure the characteristics of gas/particle two-phase flows in a 29 megawatt (MW) pulverized coal industrial boiler equipped with a new type of swirling pulverized coal burner. The distributions of three-dimensional gas/particle velocity, particle volume flux, and particle size distribution were measured under different working conditions. The mean axial velocity and the particle volume flux in the central region of the burner outlet were found to be negative. This indicated that a central recirculation zone was formed in the center of the burner. In the central recirculation zone, the absolute value of the mean axial velocity and the particle volume flux increased when the external secondary air volume increased. The size of the central reflux zone remained stable when the air volume ratio changed. Along the direction of the jet, the peak value formed by the tertiary air gradually moved toward the center of the burner. This tertiary air was mixed with the peak value formed by the air in the adiabatic combustion chamber after the cross-section of / = 0.7. Large particles were concentrated near the wall area, and the particle size in the recirculation zone was small.

关键词： industrial pulverized coal boiler     swirl burner     air/particle flow     particle dynamic analyzer (PDA)    

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有关间接法预测煤层气含量的讨论

鲜学福,辜敏

《中国工程科学》 2006年 第8卷 第8期   页码 15-22

摘要：

对间接法预测煤层气（甲烷）含量有关的煤层气在煤中赋存状态、煤层气在煤中吸附模型及其相互之间的联系、煤层中游离煤层气及其含量相关计算所需的参数进行了分析讨论，并提出了相应的建议。

关键词： 间接法     煤层气     甲烷     吸附/吸收     游离    

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燃煤电站烟气污染物深度脱除技术的分析

张晓鲁

《中国工程科学》 2014年 第16卷 第10期   页码 47-51

摘要：

近年来雾霾天气的频繁出现使得细颗粒物（PM2.5）成为了公众关注的热点，PM2.5的控制也已增加到2012 年发布的《环境空气质量标准》中，而目前我国现有的烟气污染物控制技术难以脱除PM2.5，因此，为深度脱除PM2.5、SO2、SO3以及重金属等烟气污染物，开发燃煤电站烟气污染物深度脱除技术（深度脱除技术）成为亟待解决的问题。本文系统分析了开发适用于我国燃煤电站的深度脱除技术的必要性以及存在的问题，重点分析研究了PM2.5脱除技术、全负荷下超超临界锅炉的低NOx排放以及SCR工作温度的适应性。最后，以某电厂2×660 MW超临界机组为例，介绍了烟气污染物深度脱除系统方案，以此为基础，分析提出了1 000 MW超超临界机组烟气污染物深度脱除的技术路线。

关键词： 燃煤机组     烟气污染物     深度脱除     PM2.5脱除    

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Practice of Unconventional Gas Development and Engineering Management Innovation in China

Wen-rui Hu,Jing-wei Bao,Bin Hu

《工程管理前沿（英文）》 2014年 第1卷 第1期   页码 18-29 doi: 10.15302/J-FEM-2014005

摘要： This article analyses the recent progressive increase in resourcequantity and production quantity of unconventional natural gas in China, describes its natural properties and the concepts, strategies and approaches of its development, summarizes the special techniques, management concepts and development modes formed in the process of its development, and puts forward proposals to accelerate the development of unconventional natural gas of China. The technically recoverable reserve of unconventional natural gas is 1.7 times that of conventional natural gas and its output in 2012 accounted for 41.8% of the total output in China. Chinese tight gas development has gained success, coal-bed methane development and shale gas production pilots have made important progresses. As the key feature of unconventional natural gas is "low grade", for the effective scale development, developers must build up the engineering concept of low-grade resources development, adhere to the low cost strategy, take the development route of "a step backward and then a step forward", apply such ideas and methods of engineering management as low cost dualistic integrative innovation, full control network management, economic limit theory, integrated operation and "four orientations" engineering management, establish a "two lows" engineering management system, and take reference of the successful development mode of the tight gas in Sulige and the coal-bed methane in the Qinshui basin. In order to achieve the objective of rapid development of nonconventional natural gas in China and to accelerate the development pace, the government should continue to increase support, to speed up the reform of natural gas price adjustment, to set up national comprehensive development and utilization demonstration areas, to input in sustainable technological research and to promote engineering management innovation.?

关键词： natural gas     unconventional     tight gas     coal-bed methane     shale gas     engineering management     innovation     proposals    

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A hot future for cool materials

《能源前沿（英文）》 2023年 第17卷 第4期   页码 447-449 doi: 10.1007/s11708-022-0854-4

摘要： The widespread need to pump heat necessitates improvements that will increase energy efficiency and, more generally, reduce environmental impact. As discussed at the recent Calorics 2022 Conference, heat-pump devices based on caloric materials offer an intriguing alternative to gas combustion and vapor compression.

关键词： magnetocaloric     electrocaloric     mechanocaloric     elastocaloric     barocaloric    

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标题 作者 时间 类型 操作

A review on research and development of iron-based sorbents for removal of hydrogen sulfide from hotcoal gases

Jianglong YU, Liping CHANG, Fan LI, Kechang XIE

期刊论文

Desulfurization performance of iron-manganese-based sorbent for hot coal gas

Xiurong REN, Weiren BAO, Fan LI, Liping CHANG, Kechang XIE

期刊论文

Innovative approach of low carbon and efficient utilization of coal resources: The polygeneration systemof a combination of the gasified coal gas and the pyrolyzed coal gas to form the synthetic gas

Kechang XIE, Fan LI

期刊论文

Sensitivity analysis of a methanol and power polygeneration system fueled with coke oven gas and coalgas

Guoqiang ZHANG, Lin GAO, Hongguang JIN, Rumou LIN, Sheng LI

期刊论文

Life cycle assessment and economic analysis of HFC-134a production from natural gas compared with oil-basedand coal-based production

期刊论文

Analysis of Flue Gas Pollutants Deep-removal Technology in Coal-fired Power Plants

Xiao-lu Zhang

期刊论文

Approach and potential of replacing oil and natural gas with coal in China

Junjie LI, Yajun TIAN, Xiaohui YAN, Jingdong YANG, Yonggang WANG, Wenqiang XU, Kechang XIE

期刊论文

A review on transport of coal seam gas and its impact on coalbed methane recovery

Geoff G.X. WANG, Xiaodong ZHANG, Xiaorong WEI, Xuehai FU, Bo JIANG, Yong QIN

期刊论文

The R&D of Flue Gas Pollutants Deep-Removal Technology for Coal-fired Power Plants

Xiao-lu Zhang

期刊论文

Optimization of Venturi tube design for pipeline pulverized coal flow measurements

WU Zhansong, XIE Fei

期刊论文

Influence of mass air flow ratio on gas-particle flow characteristics of a swirl burner in a 29 MW pulverizedcoal boiler

Rong YAN, Zhichao CHEN, Shuo GUAN, Zhengqi LI

期刊论文

有关间接法预测煤层气含量的讨论

鲜学福,辜敏

期刊论文

燃煤电站烟气污染物深度脱除技术的分析

张晓鲁

期刊论文

Practice of Unconventional Gas Development and Engineering Management Innovation in China

Wen-rui Hu,Jing-wei Bao,Bin Hu

期刊论文

A hot future for cool materials

期刊论文