代写英文论文

代写毕业论文:催化剂的研究分析

代写毕业论文:催化剂的研究分析。利用微光反应器来理解催化反应很大程度上是因为微光反应器提供了表面对体积的增强比例。在催化剂的环境中,固定化性能是确保催化剂在通道壁上处于表面积照明和研究可用性将增加的状态(Smith等人,2005)。由于增加了表面积,这里有很多互动,这确保了研究结果的最大化。不管正在研究的催化剂是什么,可以看到这里的产品本身没有被催化剂污染。接下来代写毕业论文专家将对催化剂进行以下研究与分析。

在理解由于微光反应器而产生的催化反应时,由于催化剂的这些不污染的条件将是一个经常被引用的优势。微光反应器的催化应用通常是在理解废水处理和分析废气的背景下进行的。在废水处理的情况下,有必要了解处理废水中存在的各种污染物的不同方法。除了废水中存在的可过滤元素外,还注意到以污染物形式存在的元素,如COD、氮化合物等。为了确保通过催化湿式氧化的方式清除这些元素,废水处理必须采用在高温高压条件下引入催化剂的工艺(拜耳等人,2000年)。这种形式的系统更有利,因为使用微光反应器主要不会导致产品污染(在这种情况下是水),因为微光反应器催化不像其他形式的污染。运行成本低得多,也是一种环保的方法。装置设计更紧凑,催化法既不会除臭也不会脱色。这些是现有废水清洗系统中存在的一些问题。合成产物通常是高性能水(Lob等人,2004)。以这种形式存在于水中的一些常见的COD成分包括福尔马林、二恶烷、甲醇、甲酸、苯酚等。此外,还会有类似硫的化合物,以酮、四氢呋喃(THF)、甲基乙基酮(MEK)、甲醇、对苯二甲酸、乙二醇、季戊四醇等形式存在。在净水环境中使用微光反应器的光催化的一些优点是,与其他任何方法相比,其效果可以实现更好的最佳降解。例如,考虑光催化氧化,只要温度变化很小,就不会影响催化过程(Guo et al, 2008)。在温度非常高的地方降解会被加强而不需要改变太多的pH值。氧凝聚可以是一个常数,不会有影响。研究进一步表明,在活性炭和二氧化硅的情况下进行光催化可以获得更好的吸附剂效率。

一些光催化微光反应器的应用是关于l -哌啶甲酸的合成。Takei等人利用自制的微光反应器装置,研究了l -赖氨酸方案下l -哌齐酸54的合成方法。它是典型的自制微芯片(Guo et al, 2008)。批量实验也进行了并行,发现在批处理系统的情况下,转化率在一个小时的时间周期内实现,而在微光反应器技术的情况下,转化率在1分钟或更适当的0.86分钟内实现(Benaglia, 2009)。这表明,在微光反应器的情况下,该工艺是非常有效的。然而,在批处理系统中,产生的量要高得多,在微光反应器系统中,产生的量平均为2.8乘以10的负10 mol / min次方。虽然这可能被认为是一个显著的缺点,这里需要注意的一个重要因素是微光反应器将允许使用集群,所以通过使用更多的微反应器将可能解决这个问题(Wenn等人,2014)。

These terms of non-contamination because of the catalyst will be an oft quoted advantage when it comes to understanding catalytic reactions because of micro-photo reactor. The catalytic application of the micro-photo reactor is usually in the context of understanding waste water treatment and that of analyzing exhaust air. In the case of waste water treatments, there is a need to understand the different ways to treat the range of pollutants that are present in waste water. In addition to the filterable elements that are present in the waste water, it is also noticed that there are elements in the form of pollutants such as COD, nitrogen compounds and more. In ensuring the cleaning up of such elements by means of a catalytic wet oxidation it becomes necessary for waste water treatment to make use of processes where under high temperature and pressure conditions the catalyst would be introduced (Bayer, et al, 2000). This form of system is more advantageous as the use of the micro-photo reactor primarily does not lead to pollution of the product (in this case it is water) because micro-photo reactor catalysis will not contaminate unlike the other forms. The running cost is much lower and this is an environmentally friendly method too. The plant design is much more compact and the catalysis method will neither deodorize the water and nor will it decolorize it. These are some issues that are present in existing systems of waste water cleaning. The resultant product is usually high performance water (Lob et al, 2004). Some of the common COD components that are present in such forms of water are that of formalin, dioxane, methyl alcohol, formic acid, phenol and more. In addition, there would be sulfur like compounds in the form of tone, tertahydrofuran (THF), methyl ethyl ketone (MEK), methyl alcohol, terephthalic acid, ethylene glycol, pentaerythritol etc. Some of the advantages of the photo catalysis in the context of purifying water that leads to the use of micro-photo reactor is that of its effect to achieve a better optimum degradation compared to any other. For instance, consider photocatalytic oxidation where the temperature changes would not affect the process of catalysis as long as they are minor (Guo et al, 2008). Where there are very high temperatures then it would happen that the degradation will actually be enhanced without much pH change involved. Oxygen concertation could be a constant here and would not have an impact. Research studies further more indicate that photo catalysis in the case of activated carbon and silica would result in a better adsorbent efficiency.

Some of the photocatalytic micro-photo reactorapplications are with respect to the synthesis of L-Pipecolinic acid. Researchers Takei et al studied how to synthesize L-pipecolinic acid 54 in the L-lysine scheme by means of a micro-photo reactor device that was made at home. It was quintessentially a homemade microchip (Guo et al, 2008). A batch experiment was also conducted in parallel and it was found that in the case of the batch system, the conversion rate was achieved in a time period of an hour, whereas in the case of micro-photo reactor technology the conversion rate was achieved in the context of 1 minute or more properly in 0.86 minutes (Benaglia, 2009). This indicated that the process was much efficient in the case of the micro-photo reactor. However, in the case of the Batch systems, the amount produced was much higher and in the case of the micro-photo reactor system, the amount produced was in the average of 2.8 multiplied by ten to the power minus ten mol per minute. While this could be considered as a significant disadvantage, an important element to notice here is that micro-photo reactor would allow the use of clustering, so by the use of more micro reactors it would be possible to address this issue (Wenn et al, 2014).

以上内容就是代写毕业论文专家对催化剂的研究分析。如果同学们没有足够的时间来完成英语论文与作业,论文代写推荐选择美国论文代写AdvancedThesis服务平台。因为其服务公司拥有专业资质的英语论文代写专家团队,保障论文原创质量与合理的论文代写价格,并使用权威的抄袭检测系统,让留学生们轻松应对英语论文写作并创作出专属个人的优秀论文!除此之外,还为留学生提供专业的硕士论文代写、代写毕业论文、essay代写等服务!