日用玻璃原料与燃料对CO2减排影响的研究

从玻璃原料和燃料两方面论述了日用玻璃生产中CO2的来源和减排措施.宜在原料方面采取控制日用玻璃配合料气体率、添加活性原料、加大碎玻璃掺入量;燃料优选焦炉煤气和天然气,限制发生炉煤气的使用,建议推广使用富氧燃烧技术等有效措施,有利于大幅降低CO2排放,同时分析了CO2减排效果.     

国外水泥工业低碳发展技术现状及前景展望

1世界水泥工业CO2排放现状与发展趋势 全球水泥行业产生的CO2约占全球人为产生CO2总排放量的5%。目前,单位水泥CO2的排放系数约为0.55-0.95t/t,主要取决于水泥生产过程中的能效、使用的燃料种类以及所生产的水泥品种。德国水泥行业CO2的平均排放系数约为0.57t/t,处于世界先进水平。     

CO_2减排给我国石化企业带来的挑战和机遇

分析了我国石化公司CO2的排放来源,介绍了当前国内石化公司CO2减排所面临的挑战、机遇和商机,并提出了应对策略。认为应重点关注CO2高排放装置的节能与减排工作,加强节能管理,开展CO2综合利用技术的研究与应用,开发和利用生物能源、生物燃料等可再生能源,灵活运用各种减排政策和机制,参与温室气体减排活动。     

数值模拟及其在玻璃熔窑中的应用进展

主要对数值模拟技术以及在计算玻璃质量参数和NOx排放中的应用进行论述.在玻璃熔窑运行过程中,应用数值模拟技术可以优化操作参数和进行故障诊断与分析,通过模拟技术可以减少试验次数、减少燃料消耗、提高玻璃质量和熔窑运行稳定性.     

控制二氧化碳的一项新技术

作为碳源的石灰在生产的过程中有两种生成CO2的方式:化学反应和含碳燃料的燃烧。本文列出了因石灰生产而产生的CO2排放量。将CALGERGY应用到石灰工业中,能有效吸收产生的CO2,再碳酸化可降低CO2的排放。     

玻璃窑炉污染预防技术与低排放节能窑炉设计

介绍了玻璃窑炉污染预防技术的现状,分析目前玻璃生产工艺中消除污染物的一次措施和二次措施,重点阐述减少玻璃熔窑污染物排放的一次措施,实现玻璃窑炉的污染物过程处理,降低二次措施处理的成本,通过对玻璃生产的原料、燃料、燃烧技术进行研究分析,结合节能窑炉设计指出了低氮燃烧技术是目前降低玻璃窑炉NOx排放的优化过程治理手段。     

负载型钾基CO2吸收剂的结构表征和碳酸化反应特性

CO2减排已成为21世纪人类面临的焦点问题.而在我国燃煤电厂作为CO2排放量最大、排放最集中的化石燃料燃烧场所,对其进行CO2减排技术的研究和开发势在必行.     

玻璃熔窑燃料的现状及发展趋势

新型清洁燃料替代传统化石燃料能够有效减少玻璃生产中二氧化碳的排放,推动玻璃行业完成绿色转型升级。结合玻璃生产使用燃料的基本特点,总结了国内外玻璃熔窑燃料的演变历程,介绍了新型玻璃熔窑燃料氢能燃料、生物燃料、氨燃料的基本特点及研究进展,为新型燃料的研发与应用提供参考。     

平板玻璃工业燃料燃烧二氧化碳排放量计算方法探讨

随着平板玻璃产量的增加，化石燃料燃烧产生的温室气体CO2排放量逐年增加，本文就平板玻璃工业燃料燃烧CO2排放计算方法进行了探讨。     

煤制甲醇及下游产品过程中CO2排放计算及分析

利用C守恒原理对煤制甲醇及下游产品过程CO2排放点进行分析,对比了选用不同气化原料生产单位甲醇CO2排放量,得出气化原料多元化对降低CO2排放量有利的结论。计算出典型煤制甲醇及下游产品过程中各主要排放点的大致排放量比例,可知燃料燃烧排出的CO2占总排放量的比重较大,甲醇合成过程排出CO2浓度较高,适于后续加工利用。     

Recent Development in Improving Energy Efficiency of Glass Furnaces

The energy required for continuous glass melting usually accounts for about 30 -75% of the total energy consumptions supplied to the glass industry, and the energy cost contributes to about 10 25% of total glass manufacturing cost depending upon the type of glass and manufacturing efficiency. Typically, energy efficiency of glass furnaces offers major opportunities for manufacturing cost reduction. Significant rising of energy cost, environmental requirements for clean air and pressure for reducing global warming and carbon dioxide emissions, as well as the cost of capitals are main drivers for the technology developments. In this paper, energy efficiency of glass furnaces is discussed. Technology developments in selective batching, oxy -fuel firing with preheating batch and cullet, non - conventional advanced melting systems, such as segmented glass melting and submerged combustion melting, as well as using math modeling to optimize fuel distribution for energy savings are presented.     

WTW车用煤基燃料的经济性与环保性研究

为了研究WTW车用燃料的经济性与环保性,利用GREET模型对煤间接液化合成油、煤直接液化合成油、煤制天然气和整体煤气化联合循环发电IGCC 4种煤基燃料进行WTW计算,并对比分析了4种燃料在WTW各个阶段的能耗和CO2排放量。结果表明：4种煤基燃料的能耗由大到小为煤制天然气〉煤间接液化合成油〉煤直接液化合成油〉IGCC,其中煤间接液化合成油、煤直接液化合成油及煤制天然气的能耗都约为传统柴油或汽油的2倍,IGCC的总能耗是传统汽油的3/5左右;CO2排放排序为：煤间接液化合成油〉煤制天然气〉煤直接液化合成油〉IGCC,其中煤间接液化合成油、煤直接液化合成油和煤制天然气的CO2排放量都为传统柴油或汽油的1.6～3.1倍,IGCC的CO2排放量是传统汽油的7/10左右;煤间接、直接液化合成油和煤制天然气都有一定的市场竞争力,IGCC成本较高,且高于传统发电成本。     

全氧燃烧技术在玻璃窑上的应用

全氧燃烧技术在玻璃窑上的应用于云林，周志豪（上海建材学院０２２４３４）ＦｕｌｌＯｘｙ－ＦｕｅｌＣｏｍｂｕｓｔｉｏｎＴｅｃｈｎｃｌｏｇｙ￥ＹｕＹｕｎｌｉｎ；ＺｈｏｕＺｈｉｈａｏ（ＳｈａｎｇｈａｉＩｎｓｔｉｔｕｔｅｏｆＢｕｉｌｄｉｎｇＭａｔｅｒｉａｌｓ）...     

水泥工业NOx超净排放下CO2增排量的推算

本文假定以单一辅助脱硝技术实现水泥工业烟气NO_x超净排放,选取满足假设条件的SCR法脱硝技术和先进型选择性非催化还原法脱硝工艺分别实施,通过对脱硝工程实施前后广义能耗变化量的推算,给出因广义能耗改变而增加的CO₂排量。     

浅谈全氧燃烧浮法玻璃熔窑的设计

以600t／d全氧燃烧浮法玻璃熔窑设计方案为例,从热工计算、窑体结构、耐火材料选用等方面进行详细分析,并根据目前行业实际情况对全氧燃烧与空气燃烧两种浮法玻璃熔窑优缺点进行比较,提出切实可行的全氧浮法玻璃熔窑设计方案。     

An efficient methodology for utilization of K-feldspar and phosphogypsum with reduced energy consumption and CO2 emissions

The issues of reducing CO2 emissions, sustainably utilizing natural mineral resources, and dealing with industrial waste offer challenges for sustainable development in energy and the environment. We propose an efficient methodology via the co-reaction of K-feldspar and phosphogypsum for the extraction of soluble potassium salts and recovery of SO2 with reduced CO2 emission and energy consumption. The results of characterization and reactivity evaluation indicated that the partial melting of K-feldspar and phosphogypsum in the high-temperature co-reaction significantly facilitated the reduction of phosphogypsum to SO2 and the exchange of K+(K-feldspar) with Ca2+(CaSO4 in phosphogypsum). The reaction parameters were systematical y investigat-ed with the highest sulfur recovery ratio of~60%and K extraction ratio of~87.7%. This novel methodology possesses an energy consumption reduction of~28%and CO2 emission reduction of~55%comparing with the present typical commercial technologies for utilization of K-feldspar and the treatment of phosphogypsum.     

Combustion characteristics of sewage sludge in an incineration plant for energy recovery

A new type of sewage sludge incinerator that combines a pressurized fluidized bed combustor and a turbocharger driven by flue gas was proposed. In this study, the operation and combustion characteristics of a demonstration plant were clarified, and the design data for a commercial plant were obtained. The steady operation exceeded 600 h in total. CO, NO_x, and N₂O emissions in the flue gas were less than half those of a conventional plant. At an incineration capacity of 100 t/day, an energy savings of approximately 50% can be achieved compared with a conventional plant because the forced draft fan (FDF), the induced draft fan (IDF) and the feed water pump are unnecessary. Also, pressurization allowed reduction of the combustor volume, so about 25% of supplementary fuel can be reduced. Consequently, CO₂ emissions originating from electric power consumption and supplementary fuel is expected to be reduced by about 40% annually compared with emissions from a conventional plant; in addition, the cost of fuel and electricity can be reduced by 23 million yen. Therefore, this advanced incinerator for sewage sludge can realize energy recovery and savings as well as a low environmental impact.     

浮法玻璃生产企业余热利用探讨

在浮法玻璃生产过程中,玻璃窑炉产生的高温烟气余热回收发电,退火窑热风与玻璃熔窑小炉蓄热室顶部热风回收到助燃风系统,提高助燃风温度,降低燃料消耗,改善玻璃熔化质量,达到节能减排、优质稳产目的。     

Submerged Combustion Melting of Glass

Advances in tank melter, refractory, controls, and heat source technology have paralleled progress in glass chemistry, quality, and production scale for decades. These same advances have also led to a revival of the 75-year-old concept of bottom heating for glass melting. To create high-intensity heat transfer and rapid melt homogenization, bottom heating, or submerged combustion melting, uses forced convection and direct contact heat transfer. The work of European, American, and Ukranian scientists has demonstrated that bottom heating offers energy savings, emissions reductions, and cost savings relative to conventional melting. Recent work by the Gas Technology Institute of the United States, in partnership with a consortium of glass companies, has advanced the bottom heating technology for a number of glass products to the brink of commercialization. With ongoing work a practical, rapid refining process could be developed to enable bottom melting as an alternative melting approach for a broad range of commercial glasses.