碳分子筛变压吸附空气分离活性及表征  

PSA performance of air separation and characterization of carbon molecular sieve

作　　者：翟宇恺[1] 李轶[1] 王燕[1] 赵秋燕 

机构地区：[1]陕西省石油化工研究设计院,陕西西安710054 [2]中国石油庆阳石化分公司工程技术处,甘肃庆阳745115

出　　处：《应用化工》2008年第11期1338-1341,共4页Applied Chemical Industry

摘　　要：石油焦基活性炭经Ni（NO3）2溶液室温浸渍过夜，红外灯缓慢烘干（Ni载持量5％），再经1-丁烯沉积处理，制备了催化炭沉积碳分子筛S-CMS，探讨了空气进料流量、压力和再生时间对碳分子筛空分效果的影响。结果表明，当流量为10—50mL／min时，对空气分离效果影响很小；当吸附压力增加时，氮气浓度应该是增加的。脱附时间大于60s时，S-CMS能够被再生。与商用T1-CMS比较，S-CMS是优秀的，在常温常压下，可获得浓度为93％的富氮气体。通过对碳分子筛表面结构的FT-IR、骨架结构-XRD及其氧化性in-situ TG／DTA的测试显示，S-CMS具有微孔分布独特的骨架网络结构，是一种潜在的优越变压吸附剂。Petroleum facal base activated carbon was impregnated by Ni （NO3 ）2 solvent in the room temperature, dry slowly by the infrared lamp（ load hold amount of Ni is 5% ）, S-CMS was obtained by catalytic chemical deposition and the influence parameters were also investigated. The PSA performance nearly unchanged while the flow rate 10 - 50 mL/min. S-CMS can be regenerated while the desorption time is over 60 s. Comparing to T1-CMS,S-CMS is optimum to do PSA air separation,in which 93% N2-enriehed air was obtained. FT-IR,XRD and in-situ TG/DTA results indicated that S-CMS has unique microporous structure, which is actually positive for PSA performance of CMS sample.

关 键 词：碳分子筛 空气分离 活性及表征 变压吸附 

分 类 号：TQ424.1[化学工程]