排序方式： 共有5条查询结果，搜索用时 187 毫秒
1
1.
丁二烯自聚物的产生和预防 总被引：4，自引：0，他引：4
介绍了丁二烯自聚物的种类,分析了丁二烯自聚物的形成机理、产生条件和爆炸原因,归纳总结了预防丁二烯自聚物产生及丁二烯储存中的安全措施 相似文献
2.
Relevant safety issues are associated with hazardous materials transportation, especially when transport routes cross populated areas. On March 6th, 2015, a passenger train collided with the last rail car of a freight train in Tilburg, the Netherlands. The last car contained 50 t of liquefied 1,3-butadiene. As a result of the collision, the last car showed deformation; a small leakage occurred but fortunately with no relevant consequences. However, extremely severe consequences could have happened, such as in the rail accident that occurred in Viareggio, Italy in 2009. In this work, the case of Tilburg was firstly outlined and explored by qualitative methods, in order to identify possible realistic final scenarios that could have happened. Second, the potential consequences of the identified scenarios were estimated through conventional integral model for physical effects evaluation. Comparison with the Viareggio case was also shown in order to support the discussion of the results obtained. Finally, lessons learned after the incident, policy making considerations, and indications for the risk mitigation of hazardous materials transportation are given. 相似文献
3.
采用RBI技术对丁二烯装置进行风险评估,经分析装置存在的主要损伤机理有碱应力腐蚀开裂、有机酸腐蚀、冷却水腐蚀、冲刷腐蚀和丁二烯自聚等,装置的风险由失效后果主导,失效可能性较高的评估.单元集中在脱重冷凝系统和薄壁小直径管道。根据基于风险的检验策略对装置实施检验,检验过程中发现装置存在脱重冷凝系统设备应力腐蚀开裂、一萃塔系统换热器点蚀、接管角焊缝开裂和压力管道腐蚀減薄等主要问题,检验检测结果与风险评估过程中识别的损伤机理和薄弱环节保持一致。 相似文献
4.
由丁二烯过氧化物引发的爆炸事故已受到社会的关注和重视 ,国内外一些学者针对丁二烯过氧化物的危险特性进行了一些研究工作 ,并取得了一定进展。但由于丁二烯过氧化物本身合成与测试的复杂性和危险性 ,深入而系统地研究丁二烯过氧化物的危险性及其机理显得十分必要 ,同时将面临重重困难。 相似文献
5.
采用ＡＭ１方法计算了环境致癌物１,３－丁二烯（ＢＤ）的代谢产物１,２－环氧－３,４－丁烯（ＥＢ）和１,２,３,４－二环氧丁烷（ＤＥＢ）与ＤＮＡ腺嘌呤和胞嘧啶烷化反应过程速率控制步骤的活化能,以及ＤＥＢ在ＤＮＡ大沟侧与不同序列ＤＮＡ片断生成烷化股间横向交联产物的结构和能量．结论认为：用烷化反应的难易程度难以解释ＤＥＢ的致突性比ＥＢ约大１００倍的实验事实;强致突的ＤＥＢ可与碱基发生２次烷化反应,生成ＤＮＡ交联产物;而ＥＢ则不能交联,这可能为２者基因毒性差异巨大的分子机制;同时ＤＥＢ在ＤＮＡ大沟侧可与多种不同的ＤＮＡ序列发生股间横向交联,对比在小沟侧只与２种序列交联,此发生股间横交联几率的差异合理地解释了ＤＥＢ致突的碱基选择性 相似文献
1