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TOLUENE XYLENES THE LONG AND WINDING ROAD(PPT)

机译:甲苯和木琴长而蜿蜒的道路(PPT)

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Toluene and mixed xylenes are two building blocks of the petrochemical industry that fnd end uses ranging from coatings to manmade fbres. One end use that does stand out is polyester which is respon- sible for over ffty percent of the demand for these two products. The major feedstock for both toluene and mixed xylenes is reformate which accounts for over seventy percent of the supply of these two products. Reformate is a high octane stream that is usually produced in a refnery as a gasoline blending component. Pyrolysis gasoline (pygas) which is a by-product of ethylene production can also be a source of both toluene and mixed xylenes, although more toluene is extracted from pygas than are mixed xylenes. Toluene can also be converted to mixed xylenes and is an important route to them.
机译:甲苯和混合的二甲苯是石化工业的两个建筑块,即FND末端使用从涂料到人类的毛衣。 脱颖而出的一端使用是聚酯,这是对这两种产品的需求的效率占据额外的影响。 对甲苯和混合二甲苯的主要原料是重整,其占这两种产品供应量超过百分之七十。 重整产物是一种高辛烷值,通常在Refnery中作为汽油混合组分生产。 作为乙烯产生的副产物的热解汽油(Pygas)也可以是甲苯和混合二甲苯的源,但是从Pygas中提取比混合的二甲苯更多的甲苯。 甲苯也可以转化为混合的二甲苯,并且是它们的重要途径。

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