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    • 1. 发明授权
    • Method and apparatus for reclaiming oil from waste plastic
    • 从废塑料回收油的方法和设备
    • US6011187A
    • 2000-01-04
    • US945458
    • 1997-10-27
    • Hirotoshi HorizoeTakeshi AmariHiroshi NagaiShizuo YasudaYuji KaiharaYoshimasa KawamiYasumasa Matsukawa
    • Hirotoshi HorizoeTakeshi AmariHiroshi NagaiShizuo YasudaYuji KaiharaYoshimasa KawamiYasumasa Matsukawa
    • B29B17/02C10G1/00C10G1/02C10G1/10C10B1/04C08J1/16
    • B29B17/02C10G1/00C10G1/006C10G1/02C10G1/10B29B17/04B29B2017/0496B29K2027/06B29K2101/10Y02P70/26Y02W30/622Y02W30/625
    • This invention provides a method for reclaiming oil from waste plastic in such a way that thermosetting resins and solid foreign matter in the plastic will not pose a problem. This method greatly reduces the burden of presorting the garbage or industrial waste. To achieve this objective when oil is to be reclaimed from a waste plastic containing chlorine compounds, such as vinyl chloride, the plastic must first be stripped of chlorine. Prior to pyrolysis, while being conveyed forward in a continuous stream, the plastic is mixed with heated sand and/or an additive agent to raise its temperature to 250-350.degree. C. This creates a product which is comprised of a mixture of sand and substantially dechlorinated plastic. The product is mixed with heated sand to heat it directly to a temperature of 350-500.degree. C. It is maintained at this temperature until pyrolysis occurs. In order to obtain high-quality oil with a low boiling point, a first gas/liquid separation process separates the product obtained from the aforesaid pyrolysis into liquid high-boiling point oil, gaseous low-boiling point oil and low molecular-weight gases, and recirculates the liquid high-boiling point oil to the pyrolysis process, and a second gas/liquid separation process separates the gaseous low-boiling point oil and low molecular-weight gases into liquid low-boiling point oil and low molecular-weight gases. The first and second gas/liquid separation process are connected in sequence.
    • PCT No.PCT / JP97 / 00572 Sec。 371日期1998年1月8日 102(e)日期1998年1月8日PCT提交1997年2月27日PCT公布。 公开号WO97 / 31990 日期1997年9月4日本发明提供了一种从废塑料中回收油的方法,使得塑料中的热固性树脂和固体异物不会造成问题。 这种方法大大减轻了预处理垃圾或工业废物的负担。 为了达到这个目的,当油从含氯化合物(如氯乙烯)的废塑料中回收时,塑料必须先被除去氯。 在热解之前,当在连续流中向前输送时,将塑料与加热的砂和/或添加剂混合以将其温度升高至250-350℃。这产生了由砂和 基本上脱氯塑料。 将产物与加热的沙子混合,直接加热到350-500℃的温度。保持在该温度直到发生热解。 为了获得低沸点的优质油,第一气/液分离方法将从上述热分解得到的产物分离成液体高沸点油,气态低沸点油和低分子量气体, 并将液体高沸点油再循环到热解过程中,并且第二气/液分离过程将气态低沸点油和低分子量气体分离成液体低沸点油和低分子量气体。 第一和第二气/液分离过程依次连接。
    • 3. 发明授权
    • Method and apparatus for reclaiming oil from waste plastic
    • 从废塑料回收油的方法和设备
    • US06172271B2
    • 2001-01-09
    • US09438307
    • 1999-11-12
    • Hirotoshi HorizoeTakeshi AmariHiroshi NagaiShizuo YasudaYuji KaiharaYoshimasa KawamiYasumasa Matsukawa
    • Hirotoshi HorizoeTakeshi AmariHiroshi NagaiShizuo YasudaYuji KaiharaYoshimasa KawamiYasumasa Matsukawa
    • C10G100
    • B29B17/02B29B17/04B29B2017/0496B29K2027/06B29K2101/10C10G1/00C10G1/006C10G1/02C10G1/10Y02P70/26Y02W30/622Y02W30/625
    • This invention provides a method for reclaiming oil from waste plastic in such a way that thermosetting resins and solid foreign matter in the plastic will not pose a problem. This method greatly reduces the burden of presorting the garbage or industrial waste. To achieve this objective when oil is to be reclaimed from a waste plastic containing chlorine compounds, such as vinyl chloride, the plastic must first be stripped of chlorine. Prior to pyrolysis, while being conveyed forward in a continuous stream, the plastic is mixed with heated sand and/or an additive agent to raise its temperature to 250-350° C. This creates a product which is comprised of a mixture of sand and substantially dechlorinated plastic. The product is mixed with heated sand to heat it directly to a temperature of 350-500° C. It is maintained at this temperature until pyrolysis occurs. In order to obtain high-quality oil with a low boiling point, a first gas/liquid separation process separates the product obtained from the aforesaid pyrolysis into liquid high-boiling point oil, gaseous low-boiling point oil and low molecular-weight gases, and recirculates the liquid high-boiling point oil to the pyrolysis process, and a second gas/liquid separation process separates the gaseous low-boiling point oil and low molecular-weight gases into liquid low-boiling point oil and low molecular-weight gases. The first and second gas/liquid separation process are connected in sequence.
    • 本发明提供了一种从废塑料中回收油的方法,使得塑料中的热固性树脂和固体异物不会造成问题。 这种方法大大减轻了预处理垃圾或工业废物的负担。 为了达到这个目的,当油从含氯化合物(如氯乙烯)的废塑料中回收时,塑料必须先被除去氯。 在热解之前,当在连续流中向前输送时,将塑料与加热的砂和/或添加剂混合以将其温度升高至250-350℃。这产生了由砂和 基本上脱氯塑料。 将产物与加热的沙子混合,将其直接加热至350-500℃的温度。保持在该温度直至发生热解。 为了获得低沸点的优质油,第一气/液分离方法将从上述热分解得到的产物分离成液体高沸点油,气态低沸点油和低分子量气体, 并将液体高沸点油再循环到热解过程中,第二气/液分离过程将气态低沸点油和低分子量气体分离成液体低沸点油和低分子量气体。 第一和第二气/液分离过程依次连接。