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Journal of Thermal Science 2001年第3期10卷 285-288页

作者： BaoguoFAN ChangfuYOU 等 TheStateKeyLaboratoryofCleanCombustionofCoal TsinghuaUniversityBeijing100084P.R.China TheStateKeyLa

An experimental study has been performed systematically on flue gas desulphurization by using circulating fluidized bed. The relationship, between desulphurization efficiency and the parameters of thermodynamics and chemistry, was investigated basically. It is shown that the bed temperature and the vapor partial pressure in the bed are the important parameters that influence the desulphurization efficiency. The closer the bed temperature to the dew point and the higher the vapor partial pressure, the higher is the desulphurization efficiency. With increasing of Ca/S. the desulphurization efficiency ascends. Comparing with different operating methods, the optimum method has been found.

关键词： flue gas desulphurization circulating fluidized bed. desulphurization efficiency.

Effects of Soluble Ions on Hydration of Calcined flue gas desulphurization Gypsum

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Chinese Journal of Chemical Physics 2020年第6期33卷 764-768,I0003页

作者： Fu-xing Lin Yan-chi Zhong Shu-feng Yan Bi-fan Lin Jian-hua Wang Zhi-zhong Su College of Resources and Chemical Engineering Sanming UniversitySanming 365004China Fujian Engineering Research Center for Advanced Fluorine-containing Materials Sanming 365004China CAS Key Laboratory of Soft Matter Chemistry Department of Polymer Science and EngineeringUniversity of Science and Technology of ChinaHefei 230026China

The influence of various water soluble cations(K^+,Na^+,Ca^2+,Mg^2+)on the hydration of calcined flue gas desulphurization gypsum was *** results show that all cations but Ca^2+can accelerate the hydration of *** final crystal size is not largely influenced by different salts,except for Na^+,where the giant crystal with length of>130μm is *** study clarifies the influence of different ions on the hydration of bassanite,which could provide sufficient guide for the pre-treatment of original flue gas desulphurization gypsum before actual application.

关键词： Bassanite flue gas desulphurization Hydration Soluble ions

Mercury transportation in soil via using gypsum from flue gas desulfurization unit in coal-fired power plant

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Journal of Environmental Sciences 2013年第9期25卷 1858-1864页

作者： Kelin Wang William Orndorff Yan Cao Weiping Pan Institute for Combustion Science and Environmental Technology Western Kentucky University

The mercury flux in soils was investigated, which were amended by gypsums from flue gas desulphurization （FGD） units of coal- fired power plants. Studies have been carried out in confined greenhouses using FGD gypsum treated soils. Major research focus is uptakes of mercury by plants, and emission of mercury into the atmosphere under varying application rates of FGD gypsum, simulating rainfall irrigations, soils, and plants types. Higher FGD gypsum application rates generally led to higher mercury concentrations in the soils, the increased mercury emissions into the atmosphere, and the increased mercury contents in plants （especially in roots and leaves）. Soil properties and plant species can play important roles in mercury transports. Some plants, such as tall fescue, were able to prevent mercury from atmospheric emission and infiltration in the soil. Mercury concentration in the stem of plants was found to be increased and then leveled off upon increasing FGD gypsum application. However, mercury in roots and leaves was generally increased upon increasing FGD gypsum application rates. Some mercury was likely absorbed by leaves of plants from emitted mercury in the atmosphere.

关键词： flue gas desulphurization gypsums soils mercury emissions mercury uptakes mercury infiltration greenhouse tests

Absorption of sulfur dioxide using membrane and enhancement of desorption with ultrasound

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Transactions of Nonferrous Metals Society of China 2010年第5期20卷 930-934页

作者：薛娟琴李京仙卢曦毛维博王玉洁吴明 School of Metallurgical Engineering Xi'an University of Architecture and Technology

The absorption of sulfur dioxide in simulated flue gas by using liquid-containing membrane was *** process of sulfur dioxide desorption from the absorbent of citrate solution was *** influence of the gas-phase,and the liquid-phase on absorption efficiency of sulfur dioxide and the influence of ultrasonic frequency,ultrasonic power and stirring speed on desorption efficiency of sulfur dioxide were *** results indicate that the absorption efficiency decreases with increasing flow velocity and sulfur dioxide content in gas-phase,and can be improved by increasing the concentration and the pH value of citrate *** is concluded that lower ultrasonic frequency results in a better degassing *** using of ultrasound in desorbing sulfur dioxide from citrate solution improves the desorbing efficiency in the some conditions,without changing the essence of chemical reaction.

关键词： sulfur dioxide absorption desorption membrane ultrasound citrate flue gas desulphurization

Study on Desorbing Sulfur Dioxide from Citrate Solution by Ultrasonlficatlon

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Chinese Journal of Chemical Engineering 2007年第4期15卷 486-491页

作者：薛娟琴孟令嫒沈彬彬杜士毅兰新哲 School of Metallurgical Engineering Xi＇an University of Architecture and Technology Xi＇an 710055 China

Using a sonochemical reactor designed by the authors,the process of removing sulfur dioxide from cit- rate solution simulating the flue gas desulfurization was *** influence of ultrasonic frequency,ultrasonic power,reaction temperature,stirring speed,inert gases,initial concentration of sulfur dioxide and concentration of citrate on the efficiency of sulfur dioxide desorption,the stability of citrate solution and the concentration of sulfate radical was examined *** comparing the desorption of sulfur dioxide with and without ultrasonifica- tion,it was concluded that(1)lower ultrasonic frequency results in a better degassing efficiency;(2)the use of ul- trasonification in desorbing sulfur dioxide from citrate solution improves the desorbing efficiency in some condi- tions,without changing the essence of chemical reactions;(3)sparging inert gas into the liquid can lower the vis- cosity of solution and the cavitating threshold,and raise the desorption *** results demonstrate a technical way for deep desorption of sulfur dioxide and provide the fundamental data for future industrial disposal of sulfur dioxide.

关键词： flue gas desulphurization desorption efficiency ultrasonic degassing citrate acoustic cavitation

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美国大气污染控制装置市场的分析(Ⅲ)

青岛理工大学学报 1990年第2期 67-78页

作者：张慧明田新莲青岛建筑工程学院环境工程系青岛建筑工程学院设计研究院

2.***.2.2电除尘器销售额增长速度缓慢,市场发展速度适中在八十年代中,电除尘器市场的增长速度比较缓慢,其销售额从1981年的1.15亿美元,增加到1986年的3.96亿美元,6年间增加了两倍多。到1986年,在所有大气污染控制装置中,电除尘器的销售... 详细信息

2.***.2.2电除尘器销售额增长速度缓慢,市场发展速度适中在八十年代中,电除尘器市场的增长速度比较缓慢,其销售额从1981年的1.15亿美元,增加到1986年的3.96亿美元,6年间增加了两倍多。到1986年,在所有大气污染控制装置中,电除尘器的销售额仅次于袋滤器,居第二位。自本世纪初电除尘器应用于工业以来,在电除尘器的理

关键词： air pollution control air pollution control equipment market precipitator baghouse scrubber flue gas desulphurization