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大量的混合二甲苯是由石油产品岐化而得,其中主要成份是间二甲苯。二甲苯的三种异构体在工业上各有其用途,就目前世界需求量而言,对二甲苯最大、邻二甲苯次之。因此以间二甲苯为原料的异构化反应成为当前石油化工中研究的热门课题,据报道,这方面已取得了一些成果。总的说,这些成果都是属于热(催化)异构化反应。至于红外激光诱导二甲苯异构化反应,尚未见到报道。
A large number of mixed xylene is derived from the disproportionation of petroleum products, the main ingredient is m-xylene. Three isomers of xylene have their own uses in industry, with the largest demand for paraxylene and the second for xylenes in terms of current world demand. Therefore, the isomerization reaction using m-xylene as a raw material has become a hot topic in the petrochemical industry. It is reported that some achievements have been made in this respect. Overall, these results belong to the thermal (catalytic) isomerization reaction. As for the infrared laser-induced xylene isomerization reaction has not been reported.