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ADSORBENTS WITH IMPROVED MASS TRANSFER PROPERTIES AND THEIR USE IN THE ADSORPTIVE SEPARATION OF PARA-XYLENE
ADSORBENTS WITH IMPROVED MASS TRANSFER PROPERTIES AND THEIR USE IN THE ADSORPTIVE SEPARATION OF PARA-XYLENE
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机译:具有改善的传质特性的吸附剂及其在对二甲苯吸附分离中的应用
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摘要
Adsorbents and methods for the adsorptive separation of para-xylene from a mixture containing at least one other C8 aromatic hydrocarbon (e.g., a mixture of ortho-xylene, meta-xylene, para-xylene, and ethylbenzene) are described. Suitable adsorbents comprise zeolite X having an average crystallite size of less than 1.8 microns. The adsorbents provide improved mass transfer, which is especially advantageous for improving productivity in low temperature, low cycle time adsorptive separation operations in a simulated moving bed mode.
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