摘要
用"零长柱法"在-99℃到-20℃范围内测定并比较了空气中主要成分(N_z、O_2、Ar、Kr、Xe和CO_2)在5A分子筛晶体内的扩散系数和扩散活化能,在上述测定温度范围内,这些扩散系数的大小顺序为:Dc(Ar)>Dc(CO_2)>Dc(Kr)>Dc(O_2)>Dc(xe)>Dc(N_2)。这些成分的扩散活化能都在8.65～11.0kJ/mol之间。
Intracrystalline diffusivities and diffusional activation energies of nitrogen, oxygen, argon, krypton, xenon and carbon dioxide in 5A zeolite crystals were measured by the technique of ZLC (Zero Length Column)method at low temperatures (——99℃ to —20℃). The sequence of these diffusivities is D_c (Ar)>D_c (CO_2)>D_c (Kr)>D_c (O_2)>D_c (Xe)>D_c (N_2). Their diffusional activation energies are in the range of 8.65～11.0kJ/mol.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
1994年第2期108-115,共8页
Acta Petrolei Sinica(Petroleum Processing Section)
