Co-pyrolysis of wood biomass and synthetic polymer mixtures. Part 1: influence of experimental conditions on the evolution of solids, liquids and gases
Co-pyrolysis of wood biomass and synthetic polymer mixtures. Part 1: influence of experimental conditions on the evolution of solids, liquids and gases
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DOI：
10.1016/s0165-2370(01)00167-x
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发表时间：
2002-07-01
影响因子：
6
通讯作者：
Weber, JV
中科院分区：
文献类型：
--
作者：
Sharypov, VI;Marin, N;Weber, JV
在旋转高压釜中研究了木质生物质与合成聚合物混合物的热行为。选择山毛榉木、松木、纤维素、水解木质素、中密度聚乙烯、等规和无规聚丙烯为原料。建立并讨论了反应条件、生物质和聚合物来源对混合物转化率以及对液体和气体产物产率的影响。初步的热重研究表明，生物质的热降解温度低于所研究的聚烯烃。如文献中所述，在所有情况下，对于生物质/塑料混合物（1：1重量比）的每种组分观察到独立的热行为。不同类型的天然和合成聚合物混合物在惰性气氛中的共热解导致轻质馏分和苯可溶性产物的高产率。生物质/塑料混合物转化的最佳温度（对应于轻质液体的最大产率）为400摄氏度。生物质和塑料的来源对共热解产物的分布有显著影响。在某些情况下，观察到非累加效应。这种效果，通常，发生在生物质/塑料比低于1（重量比），并导致在馏出液馏分的高产率。(C)2002 Elsevier Science B. V.保留所有权利。
The thermal behaviour of wood biomass and synthetic polymer mixtures was studied in a rotating autoclave. Beech wood, pine wood, cellulose, hydrolytic lignin, medium density polyethylene, isotactic and atactic polypropylene were selected as starting materials. The effects of reaction conditions, biomass and polymers' origins on the degree of mixture conversion as well as on the yields of liquid and gaseous products were established and discussed. A preliminary thermogravimetric investigation has shown that biomass is thermally degraded at a lower temperature than the studied polyolefins. As described in the literature, independent thermal behaviors were, in all cases, observed for each component of biomass/plastic mixtures (1:1 weight ratio). Co-pyrolysis of the different types of natural and synthetic polymer mixtures in an inert atmosphere has led to high yield of light distillate fraction and benzene soluble products. The optimum temperature for biomass/plastic mixture conversion which corresponds to the maximum yield of light liquids was 400 degreesC. The origins of both biomass and plastic had significant influences on the co-pyrolysis-products' distribution. In some cases non-additive effects were observed. This effect, generally, took place at biomass/plastic ratio lower then 1 (weight ratio) and resulted in high yields of distillate liquid fraction. (C) 2002 Elsevier Science B.V. All rights reserved.