检索结果-南通市图书馆

Journal of Thermal Science 2023年第6期32卷 2032-2047页

作者： LI Xiaoyu WANG Yumeng ZHANG Xinjing LI Bin XU Yujie CHEN Haisheng SHENG Siqing Institute of Engineering Thermophysics Chinese Academy of SciencesBeijing100190China University of Chinese Academy of Sciences Beijing100049China School of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBaoding071003China School of Electrical and Electronic Engineering North China Electric Power UniversityBaoding071003China

This paper proposed a novel integrated system with solar energy,thermal energy storage(TES),coal-fired power plant(CFPP),and compressed air energy storage(CAES)system to improve the operational flexibility of the CFPP.A portion of the solar energy is adopted for preheating the boiler’s feedwater,and another portion is stored in the TES for the CAES discharging *** water from the CFPP condenser is used for cooling compressed air during the CAES charging *** thermodynamic performance of the integrated system under different load conditions is *** system operations in a typical day are simulated with EBSILON *** system enables daily coal saving of 9.88 t and reduces CO_(2)emission by 27.95 t compared with the original CFPP at 100%*** partial load conditions,the system enables maximum coal saving of 10.29 t and maximum CO_(2)emission reduction of 29.11 t at 75%*** system has maximum peak shaving depth of 9.42%under 40%load *** potential of the system participating ancillary service is also *** is found that the integration of solar thermal system and CAES system can bring significant ancillary service revenue to a conventional CFPP.

关键词： solar thermal compressed air energy storage coal-fired power plant thermal energy storage operation flexibility ancillary service

A coal-fired power plant integrated with biomass co-firing and CO_(2) capture for zero carbon emission

在线全文

学校读者我要写书评

暂无评论

Frontiers in Energy 2022年第2期16卷 307-320页

作者： Xiaojun XUE Yuting WANG Heng CHEN Gang XU Beijing Key Laboratory of Emission Surveillance and Control for Thermal power Generation North China Electric Power UniversityBeijing 102206China

A promising scheme for coal-fired power plants in which biomass co-firing and carbon dioxide capture technologies are adopted and the low-temperature waste heat from the CO_(2) capture process is recycled to heat the condensed water to achieve zero carbon emission is proposed in this *** on a 660 MW supercritical coal-fired power plant,the thermal performance,emission performance,and economic performance of the proposed scheme are *** addition,a sensitivity analysis is conducted to show the effects of several key parameters on the performance of the proposed *** results show that when the biomass mass mixing ratio is 15.40%and the CO_(2) capture rate is 90%,the CO_(2) emission of the coal-fired power plant can reach zero,indicating that the technical route proposed in this paper can indeed achieve zero carbon emission in coal-fired power *** net thermal efficiency decreases by 10.31%,due to the huge energy consumption of the CO_(2) capture ***,the cost of electricity(COE)and the cost of CO_(2) avoided(COA)of the proposed system are 80.37/MWhand41.63/tCO_(2),*** sensitivity analysis demonstrates that with the energy consumption of the reboiler decreasing from 3.22 GJ/tCO_(2) to 2.40 GJ/tCO_(2),the efficiency penalty is reduced to 8.67%.This paper may provide reference for promoting the early realization of carbon neutrality in the power generation industry.

关键词： coal-fired power plant biomass co-firing CO_(2)capture zero carbon emission performance evaluation

Formation and emission characteristics of VOCs from a coal-fired power plant

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2021年第7期34卷 256-264页

作者： Jingying Xu Yue Lyu Jiankun Zhuo Yishu Xu Zijian Zhou Qiang Yao Department of New Energy Science and Engineering School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of coal Combustion Huazhong University of Science and TechnologyWuhan 430074China Key Laboratory for Thermal Science and power Engineering of Ministry of Education Department of Energy and Power EngineeringTsinghua UniversityBeijing 100084China Department of power Engineering and Mechanics School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhan 430074China

On-site measurements of volatile organic compounds(VOCs)in different streams of flue gas were carried out on a real coal-fired power plant using sampling bags and SUMMA canisters to collect gas samples,filters to collect particle *** chromatography-flame ionization detector/mass spectrometry and gas chromatography-mass spectrometry was the offline analysis *** found that the total mass concentration of the tested 102 VOC species at the outlet of wet flue gas desulfuration device was(13456±47)μg·m^(-3),which contained aliphatic hydrocarbons(57.9%),aromatic hydrocarbons(26.8%),halogen-containing species(14.5%),and a small amount of oxygen-containing and nitrogencontaining *** most abundant species were 1-hexene,n-hexane and *** top ten species in terms of mass fraction(with a total mass fraction of 75.3%)were mainly hydrocarbons with a carbon number of 6 or higher and halogenated hydrocarbons with a lower carbon *** mass concentration of VOC species in the particle phase was significantly lower than that in the gas *** change of VOC mass concentrations along the air pollution control devices indicates that conventional pollutant control equipment had a limited effect on VOC *** formation potential calculations showed that aromatic hydrocarbons contributed the highest ozone formation(46.4%)due to their relatively high mass concentrations and MIR(maximum increment reactivity)values.

关键词： Volatile organic compounds coal combustion Ozone formation potential coal-fired power plant On-site measurement

Pilot testing of CO_(2) capture from a coal-fired power plant-Part 2:Results from 1-MWe pilot tests

在线全文

学校读者我要写书评

暂无评论

Clean Energy 2020年第1期4卷 12-25页

作者： Sharon Sjostrom Constance Senior ADA-ES-Inc. 640 Plaza DriveSuite 270Highlands RanchCO 80129USA

Using a 1-MWe slipstream pilot plant,solid-sorbent-based post-combustion CO_(2) capture was tested at a coal-fired power *** from pilot testing were used to develop a preliminary full-scale commercial *** sorbent selected for pilot-scale evaluation during this project consisted of an ion-exchange resin that incorporated amines covalently bonded to the substrate.A unique temperature-swing-absorption(TSA)process was developed that incorporated a three-stage fluidized-bed adsorber integrated with a single-stage fluidized-bed ***,following start-up and commissioning challenges that are often associated with first-of-a-kind pilots,the pilot plant operated as designed and expected,with a few key *** two primary exceptions were associated with:(i)handling characteristics of the sorbent,which were sufficiently different at operating temperature than at ambient temperature when design specifications were established with lab-scale testing;and(ii)CO_(2) adsorption in the transport line between the regenerator and adsorber that preloaded the sorbent with CO_(2) prior to entering the *** from the pilot programme demonstrate that solid-sorbent-based post-combustion capture can be utilized to achieve 90%CO_(2) capture from coal-fired power plants.

关键词： CO_(2)capture coal-fired power plant CCS solid sorbent temperature-swing adsorption

Pilot testing of CO_(2) capture from a coal-fired power plant-Part 1:Sorbent characterization

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Clean Energy 2019年第2期3卷 144-162页

作者： Sharon Sjostrom and Constance Senior ADA-ES-Inc. 640 Plaza DriveSuite 270Highlands RanchCO 80129USA

Post-combustion CO_(2)capture followed by sequestration is one of the only feasible means to significantly reduce CO_(2)emissions from existing fossil-fuel-fired power *** paper is Part 1 of a two-part paper highlighting key results from a project sponsored by the US Department of Energy and supported by industrial groups with the objective of demonstrating the viability of solid sorbents for CO_(2)*** overall objective of the effort was to validate solid sorbent-based post-combustion CO_(2)capture through slipstream pilot testing at a coal-fired power plant using a temperature-swing adsorption *** Part 1 of this work,the results from laboratory characterization of the sorbent selected for the pilot-scale demonstration are presented.A great deal of research related to sorbent development and evaluation has occurred to date but,for the most part,these promising materials have yet to be paired with a feasible process and demonstrated at the pilot *** sorbent selected for pilot-scale evaluation under this project consisted of an ion-exchange resin that incorporated amines that were covalently bonded to the *** the sorbent characterization portion of this work,the sorbent was characterized by a range of methods intended to provide information to support the design and operation of the pilot-scale CO_(2)-capture process,including equilibrium adsorption isotherms,adsorption and regeneration kinetics,impact of moisture and oxygen on CO_(2)working capacity,sorbent thermal properties,sorbent strength and attrition,and optimum particle-size *** paper reports results from sorbent characterization testing and how these characteristics influenced the type and size of the CO_(2)-capture process *** Part 2 of this work,results from tests of 1-MWe pilot-scale process equipment loaded with the sorbent described in Part 1 will be presented and analysed.

关键词： CO_(2)capture coal-fired power plant solid sorbent temperature-swing adsorption

Field Studies on the Removal Characteristics of Particulate Matter and SO_(x) in Ultra-Low Emission coal-fired power plant

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy Engineering 2022年第1期119卷 49-62页

作者： Xu Zhao Houzhang Tan Fuxin Yang Shuanghui Deng Key Laboratory of Thermo-Fluid Science and Engineering Ministry of EducationXi’an Jiaotong UniversityXi’an710049China

In order to reduce the environmental smog caused by coal combustion,air pollution control devices have been widely used in coal-fired power plants,especially of wet flue gas desulfurization(WFGD)and wet electrostatic precipitator(WESP).In this work,particulate matter with aerodynamic diameter less than 10μm(PM_(10))and sulfur oxides(SO_(x))have been studied in a coal-fired power *** plant is equipped with selective catalytic reduction,electrostatic precipitator,WFGD,*** results show that the PM_(10)removal efficiencies in WFGD and WESP are 54.34%and 50.39%,respectively,and the overall removal efficiency is 77.35%.WFGD and WESP have effects on the particle size *** WFGD,the peak of particles shifts from 1.62 to 0.95μm,and the mass concentration of fine particles with aerodynamic diameter less than 0.61μm *** WESP,the peak of particle size shifts from 0.95 to 1.61μ*** differences are due to the agglomeration and growth of small *** SO_(3)mass concentration increases after SCR,but WFGD has a great influence on SO_(x)with the efficiency of 96.56%.WESP can remove SO_(x),but the efficiency is 20.91%.The final emission factors of SO_(2),SO_(3),PM_(1),PM_(2.5)and PM_(10)are 0.1597,0.0450,0.0154,0.0267 and 0.0215(kg·t^(−1)),*** with the research results without ultra-low emission retrofit,the emission factors are reduced by 1~2 orders of magnitude,and the emission control level of air pollutants is greatly improved.

关键词： Particulate matter sulfur oxides wet flue gas desulfurization wet electrostatic precipitator coal-fired power plant

Outdoor cultivation of microalgae in a coal-fired power plant for conversion of flue gas CO_(2)into microalgal direct combustion fuels

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Systems Microbiology and Biomanufacturing 2021年第1期1卷 90-99页

作者： Young Joon Sung Jeong Seop Lee Hong Ki Yoon Hyunjin Ko Sang Jun Sim Department of Chemical and Biological Engineering Korea University145Anam-roSeongbuk-guSeoul 02841Republic of Korea Korea Western power Co. Ltd.285Jungang-roTaean-eupTaean-gunChungcheongnam-do 32140Republic of Korea

Microalgae have piqued renewed interest as a sustainable biofuel feedstock owing to their high CO_(2)conversion ***,the major limitation of microalga-based biofuel production is low *** this study,CO_(2)in flue gas emitted from the coal-fired power plants was fixed through mass microalgal cultivation using only sunlight as an energy *** minimize the cost and energy required to supply the flue gas and efficiently utilize the microalgal biomass,a polycarbonate(PC)greenhouse and polymeric photobioreactors were installed near the power plant *** different microalgal strains(Chlamydomonas reinhardtii,Chlorella sorokiniana,Neochloris oleoabundans,and Neochloris oleoabundans#13)were subjected to semi-continuous culturing for 1 *** maximum biomass productivity was achieved by the ***-dans#13 strain(0.703 g L^(−1)day^(−1)).Additionally,polymerase chain reaction analysis revealed that the individual microalgal culture was not cross-contaminated with other microalgal cultures in this cultivation system,owing to the structural proper-ties of photobioreactor comprising individual *** lipid content and calorific productivity of ***#13 biomass were 45.70%and 3.553 kJ L^(−1)day^(−1),respectively,which indicate satisfactory performance of biomass as a direct combustion *** CO_(2)fixation rate,which was calculated based on the carbon content in the biomass,was 0.309 g CO_(2)L^(−1)day^(−1).Therefore,large amounts of CO_(2)can be reduced using the large-scale microalgal cultivation system,which enables efficient biological CO_(2)conversion and maximizes microalgal biomass utilization.

关键词： Microalgae coal-fired power plant CO_(2)conversion process Direct combustion fuel

Carbon Dioxide Mineralisation and Integration with Flue Gas Desulphurisation Applied to a Modern coal-fired power plant

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy and power Engineering 2014年第3期8卷 431-447页

作者： Ron Zevenhoven Johan Fagerlund Thomas Bjorklof Magdalena Maikela Olav Eklund Department of Chemical Engineering Abo Akademi University Abo Turku 20500 Finland Department of Geology & Mineralogy Abo Akademi UniversityAbo Turku 20500 Finland

For Finland, carbon dioxide mineralisation was identified as the only option for CCS （carbon capture and storage） application. Unfortunately it has not been embraced by the power sector. One interesting source-sink combination, however, is formed by magnesium silicate resources at Vammala, located -85 km east of the 565 MWe coal-fired Meri-Pori power plant on the country＇s southwest coast. This paper assesses mineral sequestration of Meri-Pori power plant CO2, using Vammala mineral resources and the mineralisation process under development at Abo Akademi University. That process implies Mg（OH）E production from magnesium silicate-based rock, followed by gas/solid carbonation of the Mg（OH）2 in a pressurised fluidised bed. Reported are results on experimental work, i.e., Mg（OH）2 production, with rock from locations close to Meri-Pori. Results suggest a total CO2 fixation capacity -50 Mt CO2 for the Vammala site, although production of Mg（OH）2 from rock from the site is challenging. Finally, as mineralisation could be directly applied to flue gases without CO2 pre-capture, we report from experimental work on carbonation of Mg（OH）2 with CO2 and CO2-SO2-O2 gas mixtures. Results show that SO2 readily reacts with Mg（OH）2, providing an opportunity to simultaneously capture SO2 and CO2, which could make separate flue gas desulphurisation redundant.

关键词： CO2 mineral sequestration large-scale application coal-fired power plant desulphurisation.

Distribution and bioavailability of mercury in size-fractioned atmospheric particles around an ultra-low emission power plant in Southwest China

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2024年第4期138卷 141-152页

作者： Wei Zhang Jinjuan Li Hao Qiu Xingqiang Guo Zhijun Fei Yi Xing Deliang Yin College of Resources and Environmental Engineering Guizhou UniversityGuiyang 550025China College of Resources and Environmental Engineering Guizhou Institute of TechnologyGuiyang 550003China Key Laboratory of Karst Georesources and Environment(Guizhou University) Ministry of EducationGuiyang 550025China School of Energy and Environmental Engineering University of Science&Technology BeijingBeijing 100083China

Ultra-low emission(ULE)technology retrofits significantly impact the particulate-bound mercury(Hg)emissions from coal-fired power plants(CFPPs);however,the distribution and bioavailability of Hg in size-fractioned particulate matter(PM)around the ULE-retrofitted CF-PPs are less ***,total Hg and its chemical speciation in TSP(total suspended particles),PM_(10)(aerodynamic particle diameter≤10μm)and PM_(2.5)(aerodynamic particle diameter≤2.5μm)around a ULE-retrofitted CFPP in Guizhou Province were *** PM_(2.5)concentration was higher around this ULE-retrofitted CFPP than that in the intra-regional urban cities,and it had higher mass Hg concentration than other sizefractioned *** Hg concentrations in PM had multifarious sources including CFPP,vehicle exhaust and biomass combustion,while they were significantly higher in autumn and winter than those in other seasons(P40%).Mass concentrations of exchangeable,HCl-soluble,elemental,and residual Hg in PM_(2.5)were higher than those in other size-fractioned PM,and were markedly elevated in autumn and winter(P<0.05).In PM_(2.5),HCl-soluble Hg presented a significantly positive relationship with elemental Hg(P<0.05),while residual Hg showed the significantly positive relationships with HCl-soluble Hg and elemental Hg(P<0.01).Overall,these results suggested that atmospheric PM-bound Hg around the ULE-retrofitted CFPP tends to accumulate in finer PM,and has higher bioavailable fractions,while has potential transformation between chemical speciation.

关键词： Size-fractioned particles Mercury Chemical speciation coal-fired power plant Ultra-low emission

Combining solar power with coal-fired power plants,or cofiring natural gas

在线全文

学校读者我要写书评

暂无评论

Clean Energy 2018年第1期2卷 1-9页

作者： Stephen Mills IEA Clean coal Centre Apsley House176 Upper Richmond RoadLondon SW152SHUK

coal-fired power operators continue to look for ways to increase the efficiency and extend the working lives of their plants by improving operational flexibility and reducing environmental *** possible options are explored here:combining solar energy with coal-fired power generation,and cofiring natural gas in coal-fired *** techniques show *** on the individual circumstances,both can increase the flexibility of a power plant whilst reducing its *** some cases,plant costs could also be ***,any solar-based system is limited geographically to locations that receive consistently high levels of solar ***,although many coal-fired plants already burn limited amounts of gas alongside their coal feed,for cofiring at a significant level,a reliable,affordable supply of natural gas is *** is not the case *** for each technology,there are niche and mainstream locations where the criteria can be *** need for good solar radiation means that the uptake of coal-solar hybrids will be *** natural gas has wider potential:currently,the largest near-term market appears to be for application to existing coal-fired plants in the ***,where gas is available and affordable,potential markets also exist in some other countries.

关键词： coal-fired power plant coal-solar hybrid power generation solar power cofiring hybrid