化工学报 ›› 2009, Vol. 60 ›› Issue (7): 1787-1792.

• 能源和环境工程 • 上一篇    下一篇

生物质与聚乳酸塑料共热解特性

王刚;李爱民;全翠   

  1. 大连理工大学环境与生命学院工业生态与环境工程教育部重点实验室
  • 出版日期:2009-07-05 发布日期:2009-07-05

Thermal decomposition of biomass/polylactic acid during co-pyrolysis

WANG Gang;LI Aimin;QUAN Cui   

  • Online:2009-07-05 Published:2009-07-05

摘要:

生物质与塑料、煤等物料之间的共热解是环境友好、具有极大发展潜力的生物质热解升级处理方式。通过自制快速固定床热解反应器研究了玉米芯与聚乳酸的热解。结果表明,玉米芯与聚乳酸的共热解使热解油产率和热值增加,而水分含量降低。通过TGA/FTIR联用实时考察了玉米芯、聚乳酸及其二者混合条件下的热解气体析出特性,FTIR分析表明玉米芯与聚乳酸在共热解条件下存在明显的耦合作用。

关键词:

生物质, 热解, 聚乳酸, TGA/FTIR

Abstract:

Pyrolytic process has a promising potential for the environmentally friendly upgrading of biomass and other materials such as plastics, coal.In this study, the influence of a biopolymer, polylactic acid (PLA) on the pyrolysis of corncob was investigated by using a fast pyrolysis fixed-bed reactor.The results indicated that the co-processing of PLA with corncob increased liquefaction yield and a lower water content as a function of the corncob/PLA ratio was obtained.Furthermore, the thermal degradation of corncob, PLA and their blends in nitrogen was studied at different temperatures by using TGA/FTIR.The gas evolved during degradation was identified by in situ FTIR.The results showed obvious synergies between corncob and PLA during co-pyrolysis.

Key words:

生物质, 热解, 聚乳酸, TGA/FTIR