缓慢炭化部分氧化对制备煤质活性炭的影响

研究了炭化升温速度、炭化低温区引入空气部分氧化对活性炭制备过程中炭化阶段、炭化物结构、活性炭性能等的影响。结果表明，炭化时低温部分氧化可提高炭化物得率，使炭化物微晶的ｄ００２值升高和Ｌｃ值减小；而较慢的炭化升温速度有利于制备优质活性炭。缓慢炭化、部分氧化可以在一定程度上控制炭化路径，使炭化向生成取向性差、难石墨化、各向同性、呒定形炭多的炭化物的方向进行；并讨论了它们控制炭化的作用机理。以此为指导，

EFFECT OF SLOW CARBONIZATION AND PARTIAL OXIDATION ON PREPARATION OF ACTIV ATED CARBON FROM COAL

The effects of heating rate in carbonization and partial oxidation by air duringlow temperature range of carbonization on carbonization,char structure and properties of ac-tivated carbon were investigated.The results show that partial oxidation increases the yieldof char,leads to an increase of d_(002) and a decrease of L_c of microcrvstal in chars,and lowerheating rate in carbonization is good for high quality activated carbon preparation, Slow car-bonization and partial oxidation can control the pathway of coal carbonization to a consider-able extent and make it is possible to obtain a char with less orientation,nongraphitizable,isotropic, and more turbostratic content.On the basis of understanding and discussion aboutthe principle of controlling pathway of carbonization,a high quality activated carbon wasprepared from Shenmu coal.