POLY(METHYL METHACRYLATE) PYROLYSIS BY TWO FLUIDIZED BED PROCESS

摘要：

PMMA was continuously pyrolyzed by our new process consisting of pyrolyzer and regenerator and crude MMA of purity 94-95％ was recovered with a yield 95％. Transparent MMA of purity 99.8％ was obtained by distillation of the crude MMA. The characteristics of this process are 1) PMMA is pyrolyzed by sensible heat of circulating sand between the two fluidized beds, 2) residual oil of distillation is used as a fuel at regenerator where sand is heated up and soot derived from PMMA is incinerated, 3) at pyrolyzer, nitrogen is used as fluidization gas which is separated from pyrolysis product and reused. This process was successfully scaled up from bench plant(15kg/hr) to demonstration plant(300kg/hr). In comparison with MMA synthesis by natural resources, MMA production by PMMA pyrolysis can reduce energy usage.

作者: Akinobu Sasaki Toshiro Tsuji

作者单位: Mitsubishi Rayon, Otake, Hiroshima,Japan Graduate School of Engineering, Hokkaido University,Sapporo, Hokkaido,Japan

会议类型: 国际会议

会议名称: The 5th International Symposium on Feedstock and Mechanical Recycling of Polymeric Materials(ISFR2009)(第五届高分子材料回收国际研讨会)

会议地点: 成都

会议语种:英文

页码: 79-83

在线出版日期: 2009-10-11（万方平台首次上网日期，不代表论文的发表时间）