镁脱硫工艺的应用研究

针对攀钢高炉铁水特点，采用镁脱硫工艺脱硫，选取合适的工艺参数，在一定条件一可取得较好的脱硫效果，有较高的经济价值和实用价值。     

燃煤锅炉颗粒床干法除尘脱硫技术

本文主要论述了燃煤锅炉颗粒床干法除尘脱硫工艺方法，为烟气除尘脱硫技术提供了一条新的途径。该技术采用来源广泛的废料，通过添加特殊研制的配方压制而成，做到除尘和脱硫同时进行，脱硫效率达90％以上。同时还做到以废治废，变废为宝，可大大降低燃煤烟气净化成本。该技术工艺简单、结构合理、设备投资和运行管理费用低廉，很有推广应用的新技术。     

小氮肥厂脱硫工艺及其优化选择的探讨

本文简述了原料气中的硫化物对合成氨生产的危害。在分析以天然气为原料的小氮肥厂常用脱硫剂的脱硫原理和对比脱硫工艺的基础上,并以绵阳南光化工总厂氮肥分厂脱硫工艺改造为例,阐明了常温可再生氧化铁脱硫与锰铁锌系脱硫的联合脱硫新工艺为首推优化选择。     

武钢320t鱼雷罐铁水喷吹脱硫技术的发展与成效

针对武钢320t鱼雷罐铁水喷吹脱硫实际生产中存在的问题,从脱硫工艺优化、减少鱼雷罐粘渣、脱硫剂改进、改善喷吹脱硫动力学条件和脱硫喷枪长寿五个方面介绍了武钢的技术的发展与实际成效。     

火电厂烟气脱硫技术概述

主要介绍烟气循环流化床的脱硫工艺及其流程,在与石灰石石膏湿法脱硫工艺对比的基础上,进行了技术经济分析,并简述了烟气循环流化床脱硫工艺在我国大型火电机组的应用前景。     

天然气湿法脱硫技术

天然气工业快速发展的今天,其湿法脱硫技术也得到了迅猛的发展。湿法脱硫应用广泛,具有处理量大,操作连续,适用于高含硫天然气的处理。本文针对催化氧化法和醇胺法,说明了各自的特点和应用情况,最后指出了天然气脱硫工艺的发展趋势。     

火电厂烟气脱硫技术概述

主要介绍烟气循环流化床的脱硫工艺及其流程,在与石灰石石膏湿法脱硫工艺对比的基础上,进行了技术经济分析,并简述了烟气循环流化床脱硫工艺在我国大型火电机组的应用前景。     

湿式烟气脱硫装置效率分析

本文以湿式石灰石--石膏脱硫工艺为研究对象,推导了脱硫效率的表达形式,并对主要影响因素与脱硫效率间的关系进行理论与实践分析,为湿式石灰石--石膏脱硫装置的设计、运行、维护和脱硫效率的预测提供了依据.     

甘霖煤碱性体系中电解脱硫研究

对甘霖煤在碱性电解液体系中的电化学氧化脱硫规律进行了研究，确定电流密度为100mA/cm^2，煤浆浓度为0.015Kg/L，电解时间2小时，电解温度为室温，煤粉粒度为160目的适宜工艺条件。实验表明在介质中加入含Cl^-的催化剂可大大提高脱硫率。     

鱼雷罐喷吹脱硫动力学条件改善研究与进展

综述了鱼雷罐喷吹脱硫动力学条件改善研究与进展情况,获得了如下结论:较差的动力学条件是制约鱼雷罐脱硫技术生存发展的关键环节;通过优化工艺参数、改变喷枪结构和熔池引入辅助吹气装置等手段可以改善鱼雷罐脱硫动力学条件,提高脱硫生产效率;采用大工业生产现场简便易行的技术方案,缩短喷吹气体流股至端部死区距离,提高对两端死区附近液体的搅拌效果是改善鱼雷罐喷吹脱硫动力学条件的的重要方向。     

FGD技术综合评价指标体系的构建研究

目前烟气脱硫技术的科学评价是制约火电厂烟气脱硫应用和发展的重要问题而亟需解决。作者探讨了烟气脱硫技术综合评价指标体系构建的基本原则,并采用定性和定量相结合的方法对评价指标进行了测验和筛选,初步建立了一套包括4个一级评价指标和18个二级评价指标的FGD技术综合评价指标体系。     

基于最小模糊熵的烟气脱硫评判规则的研究

基于最小模糊熵提出了电厂烟气脱硫效果的模糊评判规则．通过电厂烟气脱硫的单因素试验数据，揭示脱硫系统多因素间动态的内在联系与规律，为控制决策的制定提供更可靠的依据．     

Treatment of Wet FGD Wastewater by a Modified Chemical Precipitation Method Using a Solid Powder Reagent

This research focused on developing a modified chemical precipitation(MCP) method for treating wet flue gas desulfurization(FGD) waste water by adding a solid powder reagent directly. Simulated wet FGD wastewater was treated by MCP method in simulation experiments.Optimization experiments were carried out with the help of response surface methodology(RSM) and central composite design(CCD) to evaluate the effects and the interactions of experimental variables, including reagent dosage, temperature and pH value. The optimal reagent dosage, temperature and pH value were 3018.0 mg/L,40.5 °C and 5.7, respectively. The RSM was demonstrated as an appropriate approach for the optimization of wet FGD wastewater treatment with the MCP method. A comparative study between the MCP method and the traditional chemical precipitation(TCP) method on raw wet FGD wastewater treatment was conducted. Results indicate that the MCP had less reagent dosage and variety than the TCP method had. Thus, the MCP method had a lower cost.     

火电厂废气治理系统改造工程实例分析

结合某火电厂废气污染物的监测和改造经验,总结了锅炉废气污染物特点,并采用布袋除尘、戈尔薄膜过滤、除雾、3层脱硫塔喷淋等双碱法脱硫综合治理技术有效控制了废气污染;以该火电厂燃煤锅炉为例,对锅炉废气处理系统改造工艺进行了分析,改造后的烟气脱硫净化系统能连续可靠运行,废气经布袋除尘、双碱法脱硫后,各类废气排放的浓度远低于相应标准限值,可实现达标排放。     

脱硫系统改造工程热控系统设计

针对某脱硫工程的1号机（炉）、2号机（炉）和3号机（炉）设计一套湿法脱硫装置进行100％烟气脱硫,并为4～7号机（炉）脱硫设计预留接口。介绍了FGD脱硫系统工艺和该工程中热控系统的设计过程,重点对脱硫控制系统、测点设置原则、仪表选型及安装等几个方面进行了分析,阐述了石灰石一石膏湿法烟气脱硫技术的热控设计原则和要点。     

湿法脱硫中pH传感器的信号处理研究

在脱硫工艺中,浆液pH值的控制,关系到脱硫效率的高低。传统的pH值控制系统,具有pH信号反馈响应慢,控制调节浆液的pH值滞后于系统的工艺要求。通过对该问题的研究分析,提出了pH信号反馈采用前反馈控制设计,并据此初步设计了基于微处理芯片的pH信号处理的电路原理图,提高了pH信号反馈的响应速度,从而满足了电厂脱硫的工艺要求。     

电厂增压风机运行中常见故障分析及处理

对河津发电分公司一期脱硫增压风机在运行过程中常见的故障进行了总结,详细叙述了故障处理过程,并结合实际运行情况对各故障产生的原因进行了分析。     

脱硫系统中碱液及污水氯离子含量的测定研究

主要研究兰州石化公司炼油厂300万/年烟气脱硫装置中碱液及含硫污水中氯离子含量的测定,结合烟气脱硫装置工艺特点,在银量沉淀滴定法（莫尔法）的基础上设计制定了相应的分析方法。拓宽了检测范围,并使用该方法和其他分析方法进行对比,结果表明该方法的准确度较好,可及时准确的配合生产分析。     

Chemical kinetics simulation of semi-dry dechlorination in coal-fired flue gas

HCl in coal-fired flue gas has adverse impact on the environment, equipment, and the flue gas desulfurization (FGD) system. The existence of HCl also increases the difficulty of the treatment of desulfurization waste water. Semi-dry dechlorination technology is put forward to attach chlorine to fly ash by spraying in alkaline solution. Simultaneously, desulphurization waste water is used as the solvent of alkali, and this could help realize the target of near-zero emission of desulfurization waste water. CHEMKIN is used to build a chemical kinetics model, which is based on the measured components of flue gas in a coal-fired power plant. NaOH is set as the alkali absorbent in the model. Both the competitive relationship of SO₂ and HCl and the effects of different factors on HCl reaction efficiency are analyzed. SO₂ with high concentration would compete for more NaOH, but when Na/Cl (ratio in mole) is 1, the reaction efficiency of HCl achieves 22.28%, and it is positively correlated with Na/Cl. When Na/Cl surpasses 5, the reaction efficiency of HCl increases to beyond 70%. As Na/Cl continues to increase, there is a slower growth of HCl reaction efficiency and it finally achieves 100% when Na/Cl reaches 12. With a fixed value of Na/Cl, a change of 1000 mg/m³ in SO₂ concentration would change the reaction efficiency of HCl about 13%. The effect of flue temperature on HCl reaction efficiency is not significant. Acid gases in flue gas react with NaOH completely in 0.1 s and come to equilibrium after about 1 s.     

Study on NO2 absorption by ascorbic acid and various chemicals

INTRODUCTION Nitrogen oxide (NOx) is one of the main air pol- lutants found in the flue gases from chemical and power plants belching acid rain and photochemical smog. Over 90 percent of all man-made nitrogen ox- ides that enter our atmosphere are produced by the combustion of various fuels. Compared with the ad- vanced stage of SO2 gas removal technologies devel- opment, the removal of NOx gases is still in the initial stages of development as roughly 90 to 95 percent of NOx emitted i…