添加剂作用下大同超低灰煤制备优质活性炭的实验研究 --

论述了原料煤加入添加剂处理在制备优质活性炭方面的优点,并讨论了添加剂加入方式、加入量、活化时间和活化气流量等对活性炭制备的影响,实验表明,原料煤经过添加剂处理并进行炭化后酸洗工序,在活化时间为1·5~2·0h时,烧失率达到45%,可以制得优质活性炭,产品碘值高于1150mg/g,灰分低于2%。 Preparation methods of activated carbon from DaTong ultra-low-ash coal are brief introduced firstly,then the advantages of the preparation in the presence of additive were presented and those influential factors on the manufacture of activated carbon from DaTong coal were investigated as impregnating methods,impregnating amount,activation time,water-steam flow rate etc,at last the conclusion and prospect are also given. The results show when the additive and acid-washing are performed,the advanced activated carbons were received,the activation time is only 1.5～2.0h,burn-off is about 45%,the iodine value is above 1150mg.g-1 and ash content is under 2%