摘要
在常温、常压下,难以将强的碳碳键选择性断裂。一般使用高温下过渡金属催化的方法使强键断裂。微波催化的方法是在局部产生高温从而发生热裂解,形成游离的自由基、碳烯、原子及其他反应中间体。以正十七烷和聚乙烯为模型化合物,研究微波催化裂解规律,从而进一步研究组成复杂的原油的微波催化裂解。结果表明,在温和条件下可以将链状烷烃如正十七烷烃、聚乙烯通过微波及炭催化剂的作用,裂解成乙烯、丙烷、丁烷、苯、甲苯等溶剂及小分子化合物。聚乙烯反应液体产物以碳数在12～38范围的α烯烃为主,也产生αω二烯、饱和烃及芳烃,芳烃主要有萘系列、蒽、菲等。
It is difficult to crack a strong C-C band selectively at ambient temperature and pressure. Generally a method of super-metal catalytics is used to crack the strong band under the high temperature. Microwave catalytic method is used to produce local high temperature for a thermal cracking, thus to produce a free radical, carbenes, atoms and the other reactive intermediate compounds, n-C17 and polyethylene are used as model compounds to study the rules of microwave catalytic cracking for further studying the catalytic cracking, by which complex crude oil catalytic cracking is composed of . The result shows at the mild condition chain olefin that nC17, polyethylene can be cracked into solutions of ethane, propane, butane, benzene and toluene and other small molecular compounds, polyethylene reacted fluids are mainly composed of α-olefin at the range 12 to 38, by which α-ωdiene, saturated hydrocarbon and aromatic hydrocarbon, anthracene, phenanthrene of albocarbon series are contained.
出处
《长江大学学报（自然科学版）》
CAS
2005年第4期116-118,共3页
Journal of Yangtze University(Natural Science Edition)
关键词
烃
微波辐射
催化裂解
温和条件
hydrocarbon
microwave radiation
catalytic
cracking
mild condition
