造纸黑液循环流化床锅炉技术分析

文章分析了利用循环流化床锅炉燃烧技术处理制浆所产生的黑液污染问题的可行性及其应用情况，对国内造纸行业的治污技术具有一定的推广应用价值。     

循环流化床锅炉用电除尘器的技术措施

一、循环流化床锅炉烟尘的基本特点循环流化床锅炉（CirculatingFluidized－BedBoiler，简称为CFB）燃煤适应性强，炉内喷钙脱硫率高达90％以上，由于炉内温度较低，NOx很少形成，排放可基本达标。另外，它能在低负荷下正常运行，特别适用于中、小型机组、热电厂和调峰机组使用。正因为如此，它被称为环保节能型新式锅炉。目前世界上正在大力推广应用。但由于炉内掺钙脱硫而较大幅度地降低了烟气中SO2的含量，同时烟尘中钙的化合物含量大量增加，这都导致烟尘比电阻增高。由于掺钙和脱硫，增加了大量的粉尘，使得烟气的含尘量大幅度地…     

厌氧消化治理造纸黑液

造纸黑液是最严重的水污染物之一,目前国内还没有一种能彻底治理黑液的方法,球溪河糖厂经过多年探索,试验,工业化治理运行,认为厌氧消化是治理中小型,亚铵法纸厂制浆黑液适宜方法。     

循环流化床锅炉石灰石脱硫系统设计初探

本文阐述了煤燃烧污染中ＳＯ２的危害、控制方法和流化床燃烧中的脱硫机理。介绍了循环流化床锅炉石灰石脱硫系统设计中的问题,并提出了设计中的一些措施。     

循环流化床锅炉石灰石脱硫系统设计初探

介绍流化床燃烧的脱硫机理和影响因素,阐述循环流化床锅炉石灰石脱硫系统设计中需要面对的问题,并提出了设计中的一些措施。     

循环流化床锅炉在矿山环保中的应用

本文通过循环流化床锅炉在煤矿电厂中的应用,介绍了煤矸石发电在矿山环保治理中的作用及锅炉灰渣综合利用的几种有效途径,为煤矿办电厂提供可靠的理论依据。     

增压流化床燃烧联合循环的环保特性

本文分析了增压流化床燃烧联合循环中ＮＯｘ，ＳＯｘ，ＣＯ、ＣＯ２的形 成过程，介绍了控制增压流化床燃烧联合循环的ＮＯｘ，ＳＯｘ，ＣＯ、ＣＯ２和粉尘排放的最新研究成果。     

循环流化床锅炉添加石灰石脱硫对锅炉效率的影响

文章阐述了循环流化床锅炉添加石灰石脱硫对锅炉效率的影响,指出了影响因素,并定量分析了各种影响因素的影响程度。     

循环流化床锅炉烟气脱硝工艺

循环流化床锅炉（CFB）是目前常用工业锅炉之一,文章简介了CFB的特性、现状及其脱硫前景,结合现有的脱硝技术和工程应用实例,对循环流化床锅炉的烟气脱硝作了探讨和分析,提出了一些有针对性的烟气脱硝工艺。     

印铁涂装烘房有机废气的直接燃烧法处理实践

本文通过采用催化法和直燃法两种工艺处理印铁涂装生产的有机废气的工业实践,对设计和运行中的一些要点进行分析和探讨。     

常用钻井液填加剂对钻井污水化学需氧量的影响

针对石油工业钻井污水化学需氧量（ＣＯＤ）严重超标的状况,从分析测定目前油田常用的８种钻井液添加剂的ＣＯＤ入手,探讨了钻井液添加剂对钻井污水的影响。实验结果表明：８种钻井液添加剂按油田现场配比复配后,对钻井污水ＣＯＤ的影响程度各不相同,其大小依次为：柴油、ＨＰＡＮ、磺化沥青、ＰＡＮ、ＰＡＭ－１、ＦＡ－３６７、ＸＹ－２７、ＣＭＣ;钻井污水中ＣＯＤ值严重超标的主要因素是钻井液添加剂;并且钻井液添加剂浓度与其对应的ＣＯＤ之间存在良好的一元线性关系。根据一元线性回归方程可较好地预测油田现场各钻井液添加剂对ＣＯＤ的影响,为解决钻井污水处理这一难题提供科学依据。     

垃圾焚烧——国外垃圾处理技术的新进展

伴随城市的发展,城市垃圾已成为危害城市环境的一大公害,有效处理城市垃圾是衡量一个国家或城市文明程度的显著标志。垃圾焚烧供热和发电是一种被广泛采用的处理方式。作者介绍了目前国外一些垃圾焚烧供热发电的情况,特别从燃烧系统、炉膛设计、通风系统及过热器、空气洁净系统等几方面详细介绍了里斯本垃圾发电厂所采用的工艺技术和设计特点。     

分解炉分级燃烧降氮脱硝技术的研究与应用

低NOx高温燃烧技术与大容积分解炉系统有机结合,具有热效率高、分解炉温度分布均匀、降氮脱硝、NOx排放浓度低等特点。文章介绍了高温分级燃烧技术在水泥窑中的应用,重点分析了分级燃烧、降氮脱硝在分解炉系统中的应用原理,以及推广的价值。     

废轮胎等离子体热解固体产物性质研究

等离子体热解废弃轮胎的产物包括可燃气、固体产物两部分,本文利用工业分析、元素分析、SEM扫描、XPS表面分析、NMR分析等手段考察了等离子体热解固体产物的特性,并与轮胎工业用碳黑做了对比研究。研究结果表明,废轮胎等离子体热解固体产物可作为热解碳黑进行回收利用。     

Study of boron behaviour in two Spanish coal combustion power plants

A full-scale field study was carried out at two Spanish coal-fired power plants equipped with electrostatic precipitator (ESP) and wet flue gas desulfurisation (FGD) systems to investigate the distribution of boron in coals, solid by-products, wastewater streams and flue gases. The results were obtained from the simultaneous sampling of solid, liquid and gaseous streams and their subsequent analysis in two different laboratories for purposes of comparison. Although the final aim of this study was to evaluate the partitioning of boron in a (co-)combustion power plant, special attention was paid to the analytical procedure for boron determination. A sample preparation procedure was optimised for coal and combustion by-products to overcome some specific shortcomings of the currently used acid digestion methods. In addition boron mass balances and removal efficiencies in ESP and FGD devices were calculated. Mass balance closures between 83 and 149% were obtained. During coal combustion, 95% of the incoming boron was collected in the fly ashes. The use of petroleum coke as co-combustible produced a decrease in the removal efficiency of the ESP (87%). Nevertheless, more than 90% of the remaining gaseous boron was eliminated via the FGD in the wastewater discharged from the scrubber, thereby causing environmental problems.     

160 h of chemical-looping combustion in a 10 kW reactor system with a NiO-based oxygen carrier

Chemical-looping combustion, CLC, is a technology with inherent separation of the greenhouse gas CO₂. The technique uses an oxygen carrier made up of particulate metal oxide to transfer oxygen from combustion air to fuel. In this work, an oxygen carrier consisting of 60% NiO and 40% NiAl₂O₄ was used in a 10 kW CLC reactor system for 160 h of operation with fuel. The first 3 h of fuel operation excepted, the test series was accomplished with the same batch of oxygen carrier particles. The fuel used in the experiments was natural gas, and a fuel conversion to CO₂ of approximately 99% was accomplished. Combustion conditions were very stable during the test period, except for the operation at sub-stoichiometric conditions. It was shown that the methane fraction in the fuel reactor exit gas was dependent upon the rate of solids circulation, with higher circulation leading to more unconverted methane. The carbon monoxide fraction was found to follow the thermodynamical equilibrium for all investigated fuel reactor temperatures, 660–950 °C. Thermal analysis of the fuel reactor at stable conditions enabled calculation of the particle circulation which was found to be approximately 4 kg/s, MW. The loss of fines, i.e. the amount of elutriated oxygen carrier particles with diameter <45 μm, decreased during the entire test period. After 160 h of operation the fractional loss of fines was 0.00022 h⁻¹, corresponding to a particle life time of 4500 h.     

对一次高炉煤气燃烧放散过程可吸入颗粒物浓度变化情况的分析

通过对环境空气中可吸入颗粒物浓度监测数据在一次高炉煤气燃烧放散过程中变化情况的分析,得出特殊的局地地形条件和局部地面气象条件可能造成污染物汇集和积累的结论,并就此提出高炉煤气燃烧放散时污染控制的建议。     

绿色分离技术-超临界流体萃取的应用

介绍了超临界流体的性质及萃取过程,主要介绍了超临界流体萃取技术在医药、食品、环保及分析领域方面的应用。     

抗高温环保钻井液体系研究

文章选择清洁环保的钻井液处理剂进行抗高温钻井液体系实验研究与评价,对包被增粘剂、降失水剂等进行优选,对抗高温环保钻井液配方进行评价,研究出无毒、无害,抗温能力强、流变性好,失水较低的钻井液体系,现场应用满足高温深井的钻井生产要求。