【摘要】 采用管式反应器对废轮胎热解过程进行了研究。考察了废轮胎在３７５ ～５５０ ℃及在Ｎ２ 、Ｈ２ 或Ｈ２Ｏ 气氛下的热解过程，研究了热解条件对产物收率和组成的影响。结果表明，热解温度高于４５０ ℃时轮胎热解完全，油品收率高，粗炭黑中有机物含量很低。载气对热解产物收率影响较大。气体停留时间对产物收率影响很小。不同的载气气氛对产物的质量影响较大，在Ｈ２ 和Ｎ２ 气氛下热解所产生的粗炭黑含硫量最低，水蒸汽热解产生的油品中的硫含量最低。更多还原

【Abstract】 Pyrolysis of used tire was studied.The results indicate that tire can be completely pyrolized at temperatures higher than 450 ℃.The use of a carrier gas increases the oil yield and decreases gas and carbon black yield.The pyrolysis yields are independent of the chemical nature of the carrier gas.The property of the carrier gas,how ever, affects the product quality.Use of H 2O results in relative low surfur content in oil and high surfur content in carbon black.更多还原