Catalytic pyrolysis of nylon-6 to recover caprolactam
Catalytic pyrolysis of nylon-6 to recover caprolactam
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DOI：
10.1016/s0165-2370(98)00068-0
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发表时间：
1998-06-01
影响因子：
6
通讯作者：
Tatsumoto, K
中科院分区：
文献类型：
--
作者：
Czernik, S;Elam, CC;Tatsumoto, K
催化裂解是从废尼龙6中回收己内酰胺的一种可能方法。使用微型反应器/分子束质谱计系统确定了可能的工艺条件，即催化剂和温度。在330-360℃，在α-氧化铝负载KOH存在下，反应以高速率和高选择性进行。仅需几分钟即可完成尼龙-6的解聚，己内酰胺的收率为85%。这些结果在小型沸腾床反应器系统中得到了证实。(C)1998 Elsevier Science B.V.保留所有权利。
Catalytic pyrolysis has been proposed as a possible process for the recovery of caprolactam from waste nylon-6. Promising process conditions, i.e. catalyst and temperature were identified using a micro-scale reactor/molecular-beam mass-spectrometer system. At 330-360 degrees C, in the presence of alpha-alumina supported KOH, the reaction proceeded at a high rate and selectivity. Only a few minutes were needed to complete the nylon-6 depolymerization with a caprolactam yield of 85%. These results were confirmed in a bench-scale fluidized bed reactor system. (C) 1998 Elsevier Science B.V. All rights reserved.