摘要
用气相碳沉积法对炭分子筛进行了改性,并对吸附阶段温度、裂解温度、堵孔剂分压等改性条件予以详细考察;采用称量法在真空电子天平上评价了改性炭分子筛上乙烯和氧气的吸附扩散性能。结果表明,改性后炭分子筛选择吸附氧气的能力大大提高,可作为直接脱除乙烯中少量氧气的吸附剂。对扩散曲线模拟计算,拟合良好。
The modification of CMS by coke deposition was studied. The modification factors such as adsorption temperature, cracking temperature and concentration of modification agent were investigated. The adsorption separation of C2H4 and O2 on the modified CMS was evaluated by gravimetric method. The adsorption mechanism of O2 from C2H4 - O2 mixture by the modified CMS was discussed.
出处
《化工学报》
EI
CAS
CSCD
北大核心
1999年第3期343-350,共8页
CIESC Journal
关键词
炭分子筛
改性
乙烯
氧气
吸附剂
乙醛
carbon molecular sieve, modification, ethylene, oxygen, adsorption separation
