权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Development of Super Environment-Resistant Steels for High-Temperature and High-Efficiency Waste-to Power Plant Schemed for the Minimized Environmental Risks

开发高温高效垃圾发电厂用超级环保钢材，降低环境风险

基本信息

批准号：
13555191
负责人：
YOSHIDA Masayuki
金额：
$ 2.62万
依托单位：
Tokyo Metropolitan University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2003
项目状态：
已结题

项目摘要

Waste treatment technology is crossing today at the turning point for attaining both much more reasonable society system of resource cycling and more sophisticated energy utilization and/or recovery through such as improving an efficiency of waste-to-power generation. It is strongly required for such a waste power plant system innovation to introduce commercially the highly corrosion-resistant alloy materials as a superheater for high-temperature boiler, since such an environment is highly aggressive to cause very sever high-temperature corrosive damage associated with both the molten salt deposited onto the superheater tube surface and flue gas containing high concentration of also aggressive chloride compounds.In the present research work has been made in order to promote the commercial introduction the low cost and highly corrosion-resistant superheater tube materials based on the steel, on the bases of the corrosive failure analysis and alloy design, by using the newly developed high-temperature corrosion testing apparatus termed as "temperature variable high-temperature corrosion testing apparatus" which enable to control intensively the temperature gradient and/or difference between surround gas atmosphere and steel metal.On the basis of the results obtained, the effect of principal alloying element on the corrosion resistance was clarified mainly by means of he multiple regression analysis, and an alloy design concept was established for improving the corrosion performance particularly from the viewpoint of developing effectively the protective oxide scale layers. Furthermore, the technological subjects to be solved in near future were also pointed out.

今天，废物处理技术正处于通过诸如提高废物发电的效率来实现资源循环的更合理的社会系统和更复杂的能量利用和/或回收的转折点。这种垃圾发电厂系统的革新强烈要求将高耐腐蚀合金材料作为高温锅炉的过热器引入商业化，由于这种环境是高度侵蚀性，高温腐蚀性损害与沉积在过热器管表面上的熔融盐和含有高浓度的也具有侵蚀性的氯化物化合物的烟道气相关联。为了促进以钢为基础的低成本高耐蚀过热器管材料的商业化，在腐蚀失效分析和合金设计的基础上，通过使用新开发的高温腐蚀试验装置，称为“温度可变高温腐蚀试验装置”，其能够强烈地控制温度梯度和/或在此基础上，主要通过多元回归分析，阐明了主要合金元素对耐蚀性的影响，并从有效发展保护性氧化膜层的角度，提出了改善耐蚀性的合金设计思想。指出了今后需要解决的技术问题。