CAJ | 학술논문

综述了国内外变压吸附(PSA)分离CH_4/N_2所采用的分子筛吸附剂,包括沸石分子筛(ZMS)与碳分子筛(CMS)的研究和应用状况;介绍了ZMS和CMS的种类及其PSA分离CH_4/N_2的原理和效果;详细阐述了不同种类ZMS的组成、孔结构与其PSA分离CH_4/N_2效果之间的关系;分析了各种不同分子筛PSA分离CH_4/N_2中的优势与不足.具有动力学分离效应的分子筛型吸附刺在分离CH_4/N_2的PSA过程中具有能耗费用低、分离效果较好的优势,因此加强其研发将是今后的发展趋势.
종술료국내외변압흡부(PSA)분리CH_4/N_2소채용적분자사흡부제,포괄비석분자사(ZMS)여탄분자사(CMS)적연구화응용상황;개소료ZMS화CMS적충류급기PSA분리CH_4/N_2적원리화효과;상세천술료불동충류ZMS적조성、공결구여기PSA분리CH_4/N_2효과지간적관계;분석료각충불동분자사PSA분리CH_4/N_2중적우세여불족.구유동역학분리효응적분자사형흡부자재분리CH_4/N_2적PSA과정중구유능모비용저、분리효과교호적우세,인차가강기연발장시금후적발전추세.
The research and application progress at home and abroad of molecular sieve adsorbents, including zeolite molecular sieves (ZMSs) and carbon molecular sieves (CMSs), used for the separation of CH_4/N_2 by pressure swing adsorption (PSA)are described. The types of ZMSs and CMSs and their corresponding principles and effects of PSA separation for CH_4/N_2 are introduced. The correlations between the compositions and pore structure size of ZMSs and their PSA separation effects are expounded in detail. The advantages and deficiencies in PSA separation with various molecular sieve adsorbents are summarized. Application of the PSA process using molecular sieve as adsorbents, which has a kinetic separation effect, to the separation of CH_4/N_2 enjoys the advantages of low energy cost and satisfactory separation performance. This may inspire the prosperity of research and development of ZMSs and CMSs adsorbents with kinetic separation effect.