废塑料与煤粉热解特性的研究  

Research on pyrolysis characteristics of waste plastics and coal powder

作　　者：郁庆瑶[1] 林成城[2] 张龙来[2] 顾德仁[1] 刘煜[2] 

机构地区：[1]宝山钢铁股份有限公司研究院,上海201900 [2]宝山钢铁股份有限公司炼铁厂,上海200941

出　　处：《宝钢技术》2012年第1期58-61,共4页Baosteel Technology

摘　　要：分别将4种废塑料和煤粉置于非氧化性气氛中研究其热解特性。研究结果表明,在氮气中废塑料的裂解过程主要分为三个阶段:缓慢裂解—急速裂解—缓慢裂解至结束,煤粉的裂解过程比较平缓;最大裂解速度对应的温度,废塑料平均超过400℃,煤粉为900℃;终了裂解量,不同品种废塑料为85%～100%,而煤粉仅22%,两者差异极大;废塑料的完全裂解表观活化能是煤粉的6～10倍。Four types of waste plastics and coal powder are placed in a non-oxidation atmosphere respectively for the purpose of studying their pyrolysis characteristics.The results show that under the condition of a nitrogen atmosphere,the waste plastics pyrolysis process can be mainly divided into three stages： slow cracking—fast cracking—slow cracking.The coal powder pyrolysis process is relatively gentle.To reach the maximum cracking speed,the average temperature of waste plastics is over 400℃,while the temperature of coal powder is about 900℃.As far as final cracking quantity is concerned,it is between 85%-100% for various waste plastics,while coal powder＇s is only 22%.There is great difference between waste plastics and coal powder.The apparent activation energy for waste plastics cracking is 6-10 times that of coal powder＇s.

关 键 词：废塑料 煤粉 热解 裂解 

分 类 号：X705[环境科学与工程—环境工程]