应用工业固硫型煤技术控制燃煤工业锅炉SO2污染--燃煤工业锅炉SO2污染综合防治对策(一)

燃煤工业锅炉是我国SO2污染的第二大污染源，仅次于燃煤发电厂。控制燃煤工业锅炉SO2污染，对控制我国大气环境SO2具有极其重要的意义。应用传统的控制方法及技术，即旋风除尘器、水膜除尘器及烟气脱硫技术，很难控制燃煤工业锅炉的SO2污染，其经济效益、环境效益和社会效益也很差。研究表明，只有采用清洁燃料，淘汰小锅炉，采用工业固硫型煤、水煤浆、应用循环流化床洁净燃烧技术和烟气脱硫技术，才能经济有效地控制燃煤工业锅炉SO2污染。     

应用循环流化床洁净燃烧技术控制燃煤工业锅炉SO2污染--中国燃煤工业锅炉SO2污染综合防治对策(六)

研究应用循环流化床洁净燃烧技术,控制燃煤工业锅炉SO2污染,其中主要包括循环流化床洁净燃烧技术,及其在燃煤工业锅炉上的应用.研究表明,应用循环流化床洁净燃烧技术,可经济、高效地控制燃煤工业锅炉SO2污染.由于循环流化床气固两相湍流混合接触良好,反应物停留时间长,因而燃烧效率高达97%～99%,除尘效率高达98%,脱硫效率高达90%;由于炉温低,NOx的生成量降低90%,经济效益和环境效益双赢.循环流化床洁净燃烧技术,是燃煤工业锅炉大气污染控制的理想替代技术.     

燃煤工业锅炉SO2污染防治技术的选择及评价--中国燃煤工业锅炉SO2污染综合防治对策(八)

论述了中国燃煤工业锅炉SO2污染防治技术的选择及评价，其中主要包括：《中国燃煤工业锅炉SO2污染综合防治对策》的产生、主要内容、特点、选择、评价及其实施的意义。     

应用工业固硫型煤技术控制燃煤工业锅炉SO2污染--中国燃煤工业锅炉SO2污染综合防治对策(四)

研究应用工业固硫型煤技术控制燃煤工业锅炉SO2的污染，研究表明，燃煤工业固硫型煤是控制燃煤工业锅炉SO2污染的最经济、简便、有效的方法。     

采用清洁燃料控制燃煤工业锅炉SO2污染--中国燃煤工业锅炉SO2污染综合防治对策(二)

研究了采用清洁燃料控制燃煤工业锅炉SO2的污染。研究表明，在有条件的地方及部门，首先要采用清洁燃料．这是控制燃煤工业锅炉SO2污染的最简便、最有效的措施。     

禁止原煤直接燃烧和淘汰小锅炉, 控制燃煤工业锅炉SO2污染--中国燃煤工业锅炉SO2污染综合防治对策(三)

禁止原煤直接燃烧和淘汰小锅炉，是控制燃煤工业锅炉SO2污染最有效、最简便的首选方法，这是由于原煤的灰分和硫分高，末煤量高、水分不适宜、粒度不符合要求，燃烧时排放出大量的烟尘和SO2，还会降低锅炉的热效率。小容量的锅炉，因炉膛小，燃烧方式落后，供氧不充分，空气和煤炭接触不充分，烟气停留时间短，燃烧不充分，会产生大量烟尘和降低锅炉热效率，煤炭资源利用率低。禁止工业锅炉原煤直接燃烧，改烧经洗选、加工、成型、转化后的洁净煤制品，锅炉热效率可明显提高，烟尘和SO2污染也会得到控制，实现经济效益和环境效益双赢。     

水煤浆洁净燃烧技术在南海发电一厂的工程应用与分析

简要介绍了水煤浆的特点及其在广东南海发电一厂的应用，分析了水煤浆洁净燃烧技术的应用在减少SO2排放量及环境保护方面的意义。     

应用烟气脱硫技术控制燃煤工业锅炉SO2污染--中国燃煤工业锅炉SO2污染综合防治对策(七)

介绍旋流板塔及其在燃煤工业锅炉烟气脱硫中的应用。研究表明，旋流板塔以气液接触面积大、结构简单、压力降较小。操作稳定为其主要特点。但是，脱硫工艺过程不合理而生成不稳定化合物亚硫酸盐叉可造成严重的二次污染。     

燃煤发电SO2污染控制技术及其在我国的应用与展望

阐述了我国酸雨污染燃煤的相关性及发展趋势，讨论比较了燃煤发电过程中SO2污染控制方法的技术经济性，分析展望了适合我国国情的燃煤污染控制技术及其在我国的应用前景。     

控制燃煤电厂SO2排放的措施

概述了环保法规和政策，管理策略以及SO2治理技术对燃煤电厂SO2排放控制的影响，提出了提高燃煤电厂脱硫主动性和积极性的措施和建议。     

输煤控制系统自动配煤分析

分析了燃煤电厂自动配煤功能难以实现的原因，介绍了手动配煤过程出现的诸多问题。结合秦皇岛电厂输煤程控系统的特点，对自动配煤系统的控制原则、参数设定以及操作实现进行了全方位的研究分析。     

Co-combustion of dried sewage sludge and coal in a pulverized coal boiler

More than 1.1 million tons of municipal and industrial sewage sludge is produced annually in Poland. Most of this sewage sludge is landfilled or used for recultivation and fertilization of soil. After accession of Poland to the EU, large investments are planned for wastewater treatment, so it is expected that the amount of sewage sludge produced in Poland will grow in the near future. It is well known that the combustion of sewage sludge is becoming a more and more popular utilization method of such waste. Unfortunately, the current situation in Poland makes it impossible to incinerate the sewage sludge because of a lack of incinerators. One possible solution for Poland is the co-firing of dried sewage sludge in existing coal-fired utility boilers. This article presents results of initial Polish industrial trials of dried municipal sewage sludge and hard coal co-combustion in an OP-230 pulverized coal boiler. Such a solution was shown to be technically viable and not to require changes to the existing technological system. Cocombustion of sewage sludge with coal in power plants seems to be the best solution for sludge utilization in the near future in Poland.     

Wastewater remediation using coal ash

 Small-scale domestic septic tanks discharge excess nutrients such as phosphorus and nitrogen, as well as pathogens, which can degrade local water supplies. Unfortunately, traditional chemical and physical treatments are not practicable for single-home dwellings. This work reports on a potentially attractive solution to protect local water supplies by using a low-cost industrial waste, coal ash, for contaminant removal. Coal ash is produced as a consequence of electric power generation. The majority of the ash is disposed of in landfills and surface impoundments, or stored on- or off-site, producing large hills or leveling valleys. Only a small portion of the ash is ever utilized, mainly by cement industries and road construction. For example, in Canada less than 25% is used. Therefore, if useful applications can be found, an opportunity exists to make better use of this waste material. Bench-scale laboratory experiments and full-scale field tests show that coal ash has the capacity to remove phosphorus from domestic waste water. The experimental and field data demonstrate that phosphate levels and calcium levels can be correlated, although not in a simple manner. In addition, the ash in packed beds removed total suspended solid (TSS), biological oxygen demand (BOD), ammonia nitrogen (NH₃—N), total Kjeldahl nitrogen (TKN), and E. coli. The removal of E. coli was close 100% in the cases studied. Received: May 20, 2002 / Accepted: October 5, 2002     

Influence of flue-gas desulfurization systems on coal combustion by-product quality at kentucky power stations burning high-sulfur coal

Two Kentucky power plants burning similar blends of high-sulfur western Kentucky and southern Indiana coal provide a unique opportunity to examine the variations in coal combustion by-products due to differences in the method of wet flue-gas desulfurization (FGD). One plant employed carbide lime-based scrubbing for two units and a dual-alkali process for the third unit. The second plant employed a Mississippian limestone from Kentucky for all four units. This study provides an example of optical and SEM petrographic techniques, supplemented by chemical analyses, applied to the study of, at least from the geologic perspective, non-traditional materials. The coal sources comprise a blend of high volatile C and B bituminous, high vitrinite (85–90%, mmf), high-sulfur (> 3%, dry) coals. The fly ash is dominated by glassy phases (70–80%) with about 5–10% spinel (predominately magnetite), 3–10% quartz, and 4–10% isotropic coke comprising the remaining portion of the ash. SEM observations indicate that the glassy particles exhibit a bimodal size distribution with sub-micron glass spheres and a population of larger (several 10s of microns) spheres. The bottom ash has higher proportions of spinels and mullite, with negligible carbon forms, compared to the fly ash from the same units. Fly ashes were observed to be lower in Fe and higher in Al, Si, and S compared to the bottom ashes. Carbide lime, a by-product of acetylene manufacture, soda ash, and limestone were the reagents used in the flue-gas desulfurization processes. The primary FGD by-product is a calcium sulfite slurry which is vacuum filtered and mixed with fly ash and, usually, lime, to form a stable product for disposal. The FGD by-products have some potential, as yet unrealized, for utilization.     

壳牌煤气化技术的应用前景分析

介绍了壳牌煤气化技术的工艺特点和发展现状,分析论述了分布式能源系统技术,将煤气化与分布式能源系统两种技术完美结合,是当今煤-电-化组合的优良模式.     

我国煤炭行业发展循环经济思考

介绍矿业循环经济理论;分析煤炭行业发展中的问题;思考煤炭行业发展循环经济的模式。     

煤中汞在燃煤电站中的形态转化

论述了汞在煤中的存在形态以及在电站燃煤过程中汞的形态转化过程和汞在大气中的传播。     

Leachate from land disposal of coal fly ash

The results of large-scale lysimeter tests in which two pulverized coal fly ashes (PCFA) have been exposed to natural weather conditions for up to seven years are presented and compared with those of laboratory leaching tests. Laboratory column leaching tests on PCFA show good reproducibility, and comparisons between lysimeter and laboratory leaching results are promising for several salt ions and trace elements in the leachate when expressed in terms of the leachate to solids ratio (L/S). A long-term disposal strategy which takes into account the largely insoluble nature of PCFA is suggested.     

煤矸石制备Sialon材料影响因素研究

煤矸石还原氮化法制备Sialon材料的影响因素很多,主要有原料组成、反应温度和保温时间、添加剂的种类和用量、N2的流量和压强以及原料的粒度等.结合实验研究,分析了部分因素对制备Sialon材料的影响.     

利用煤矸石制取钛白粉的试验研究

论述了利用煤矸石制取钛白粉的可行性,井对焙烧温度、反应温度、pH值、水解、水洗操作、盐处理及煅烧等影响因素进行了分析.对所制钛白粉进行的质量检验结果表明,用煤矸石制取钛白粉是一种切实可行的方法.