摘要
１９８０年，北川浩［１］提出用褐煤半焦与磁铁矿粉（３０％）混合成型，经５００℃炭化，制备变压吸附空分制氮用炭分子筛（ＣＭＳ）的方法，所得产品性能比不加铁时显著提高。这一结果被解释为是Ｆｅ３Ｏ４的磁性改善了炭分子筛对空气中Ｏ２的选择吸附性。作者［２，３...
Carbon molecular sieves (CMS) are prepared from walnut shell char with sulfite pulp waste liquor as binder Effects of Fe 3O 4 addition on the properties of the CMS are investigated Suitable carbonization temperature is determined to be 500℃ by means of DTA and XRD With increasing Fe 3O 4 addition, the air separation ability of the CMS increases, reaches to maximum at 11 6w% Fe 3O 4, and then decreases afterwards Molecular probe adsorption is used to study comparatively the micropore structure of the CMS with and without Fe 3O 4 added The result showes that the addition of Fe 3O 4 decreases the total micropore volume of the CMS but increases the micropore volume in the range of 0 33￣0 40 nm, which means that the addition of the Fe 3O 4 improves the micropore size distribution of the CMS and leads to a better air separation ability of the CMS
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1998年第4期373-376,共4页
Journal of Fuel Chemistry and Technology
