氧化环己烯的生产与应用

本文介绍了氧化环己烯的生产方法和应用。     

利用钛白副产绿矾和废酸制备氧化铁黄的研究

以钛白副产绿矾和废硫酸为原料,采用氯酸钠氧化法制备氧化铁黄。该试验以铁胶制备和铁黄转化阶段铁黄的色光、收率作为氯酸钠氧化法合成铁黄的考察目标。通过试验研究得出了最佳制备工艺条件。在最佳工艺条件下制备的产品,通过检测其各项性能可达国家一级品的标准。     

国内氧化锌脱硫剂的现状及展望

本文综述了国内氧化锌脱硫剂研究与生产的现状,提出了今后的发展方向.     

基于废弃陶瓷的改性滤料制备及其表面特征研究

以废弃瓷砖颗粒为载体，FeCl3为改性剂制备改性滤料。采用SEM、EDS、XRD等测试技术对改性滤料进行表征分析。结果表明：改性滤料表面氧化铁膜主要以吸附性能良好的α-Fe2O3和β-FeOOH晶体形式存在，这些铁氧化物相互呈球状颗粒聚集，厚实不均匀，使得改性滤料具有较大比表面积。     

纳微结构氧化亚铜的制备研究

Cu2O作为一种重要的P型半导体材料，在光催化、信息储存等方面的具有很高的潜在价值。形貌的变化对Cu2O的性能有重要的影响。本文对立方体、中空球形、骰状、花瓣状等几种特殊结构的纳米Cu2O的制备进行了综述，并重点就纳米Cu2O在光催化方面的应用前景进行了展望。     

Methane and Nitrous Oxide Emissions from Agriculture in the EU: A Spatial Assessment of Sources and Abatement Costs

Agriculture significantly contributes to emissions of greenhouse gases in the EU. By using a farm-type, supply-side oriented, linear-programming model of the European agriculture, the baseline levels of methane and nitrous oxide emissions are assessed at the regional level in the EU-15. For a range of CO₂-equivalent prices, we assess the potential abatement, as well as the resulting optimal mix of emission sources in the total abatement. Furthermore, we show that the spatial variability of the abatement achieved at a given carbon price is large, indicating that abatement cost heterogeneity is a fundamental feature in the design of a mitigation policy. The cost savings permitted by market-based instruments relative to uniform standard are shown to be large.     

利用制溴废液生产高纯活性氧化镁的工艺研究

在总结国内高纯活性氧化镁不同生产方法的基础上,研究了利用制溴废液先制得优质氯化镁（MgCl2·6H2O）,再进行煅烧制取高纯活性氧化镁的新工艺,其工艺过程包括蒸发、保温沉降、冷却结晶、一次煅烧、洗涤、二次煅烧等。制得的产品具有纯度高ω（MgO）≥99％,低硫ω（SO4^2-）≤0．1％、低氯ω（Cl^-）≤0．1％、高活性且工艺简单、生产成本低等特点,便于工业化生产。     

Modelling a mixed system of air pollution fee and tradable permits for controlling nitrogen oxide: a case study of Taiwan*

A mixed-integer non-linear programming model that minimises the total regulatory costs of controlling nitrogen oxide is used to investigate how a newly proposed permit trading scheme in Taiwan, which incorporates the features of banking and a non-one-to-one trading ratio, may affect firms’ emission reduction strategies and permit trading decisions. Compared to the previous regulation where only an air pollution fee is used, the new regulation that requires a reduction in emissions by 10 per cent from the emission level in the year 2000 for a 5 year period will increase the costs by 77 per cent, which is equivalent to US$9.87 million. The design of banking and the increasing returns to scale characteristic of pollution control among firms might lead to an uneven reduction in emissions in each year. Setting a lower reservation rate for banking would, however, help maintain a more stable environmental quality without a significant loss to the government in terms of air pollution fee revenue.     

Increasing agricultural productivity while reducing greenhouse gas emissions in sub‐Saharan Africa: myth or reality?

The motivation for this study stems from two major concerns that are interlinked. The first is the decades long food insecurity crisis faced by sub‐Saharan African (SSA) countries which is still prevalent. The second is the negative impact greenhouse gas (GHG) emissions from agriculture may have on future food production and which is likely to worsen the food insecurity problem. The conundrum SSA farmers face is how to increase food output through productivity growth while minimizing GHG emissions. To measure changes in productivity growth and GHG emissions, this study evaluates the agricultural performance of 18 SSA countries by utilizing the Malmquist–Luenberger index to incorporate good and bad outputs for the years 1980–2012. The empirical evidence demonstrates that productivity is overestimated when bad outputs are not considered in the production model. The analysis provides a better understanding of the effectiveness of previous mitigation methods and which informs an appropriate course of action needed to achieve the twin objectives of increasing agriculture productivity while reducing GHG emissions.     

大型电站锅炉氮氧化物控制和燃烧优化中若干关键性问题的研究

火力发电一直是中国的主要发电方式,并且随着煤炭资源逐渐稀缺,燃烧优化和氮氧化物控制已成为大型电站的主要研究课题。氮氧化物(NOX)作为大型电站锅炉的重要排放物之一,对环境的污染极大。当前,大型电站锅炉通常使用氮氧化物浓度很低的时候进行燃烧,燃烧结合选择性催化还原进行联合脱硝,而氮氧化物浓度较低的情况下,燃烧会在某些操作条件下牺牲锅炉的经济性,因此应进行燃烧优化研究。