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专利名称：Separation of propylene and dimethylether
from hydrocarbon mixtures
发明人：Sebastian C. Reyes,Krishnan V.
Venkatesan,Gregory J. DeMartin,John H.Sinfelt,Karl G. Strohmaier,Jose GuadalupeSantiesteban
申请号：US10210566申请日：20020730
公开号：US20040020360A1公开日：20040205
摘要：In a process for separating propylene and dimethylether from a mixturecomprising propylene, dimethylether, and propane, the mixture is passed through a bedof an adsorbent comprising a porous crystalline material having (i) diffusion timeconstants for dimethylether and propylene of at least 0.1 sec, when measured at atemperature of 373° K and dimethylether and propylene partial pressures of 8 kPa, and(ii) a diffusion time constant for propane, when measured at a temperature of 373° K anda propane partial pressure of 8 kPa, less than 0.02 of said diffusion time constants fordimethylether and propylene. The bed preferentially adsorbs propylene and
dimethylether from the mixture. The adsorbed propylene and dimethylether are thendesorbed from the bed either by lowering the pressure or raising the temperature of thebed.
申请人：REYES SEBASTIAN C.,VENKATESAN KRISHNAN V.,DEMARTIN GREGORYJ.,SINFELT JOHN H.,STROHMAIER KARL G.,SANTIESTEBAN JOSE GUADALUPE
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