NaOH改性生物质做为型煤粘结剂的成型研究  

The effect of sodium hydroxide treatment on biomass binder preparation

作　　者：李春桃[1] 席冰[1] 徐兵[1] 梁玉祥[1] 

机构地区：[1]四川大学化工学院,四川成都610065

出　　处：《洁净煤技术》2009年第6期36-38,56,共4页Clean Coal Technology

摘　　要：探讨了NaOH溶液改性生物质秸秆作为型煤粘结剂的可行性。实验研究了NaOH溶液浓度以及生物质种类对型煤机械强度的影响,并采用显微镜、SEM和能谱分析了生物质型煤的成型机理。微观结构分析表明改性生物质具有粘结作用;碱液浓度与纤维的降解程度成正比;生物质纤维的降解程度直接影响其制得型煤的机械强度。结果表明,1%NaOH溶液改性的稻草秸秆具有较好的粘结性,所制备的型煤机械强度较好。The possibility of biomass treated with sodium hydroxide used as coal briquette binder was studied. The influence of concentration of NaOH solution and biomass species on briquette strength were researched and the briquetting mechanism of bio-briquette was observed by means of microscopy, SEM and Spectrum. The micro-structure analysis indicated that the modified biomass had bond role, NaOH concentration was proportional to the degradation of fiber which directly affects bio-briquette mechanical strength. The results showed that rice straw modified with 1.0% NaOH solution had better caking capability and biomass briquette had higher mechanical strength.

关 键 词：生物质型煤 粘结剂 成型机理 显微观测 

分 类 号：TQ536[化学工程—煤化学工程]