含铼沸石在直馏汽油改质过程中的理化及催化性能

IF 0.5 Q4 CHEMISTRY, MULTIDISCIPLINARY

Journal of Siberian Federal University. Chemistry Pub Date : 2021-09-01 DOI:10.17516/1998-2836-0247

L. Velichkina

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引用次数: 0

摘要

以ZSM‑5沸石为原料，与超细铼粉进行干式机械混合，制备了汽油直馏馏分提质催化剂。研究了ZSM - 5分子筛经铼修饰后结构和酸性特性的变化。对制备的催化剂在直馏汽油加工过程中形成的缩聚产物的浓度和性质进行了测定。与未经改性的沸石相比，含铼沸石催化剂的运行效率得到了提高，这包括在研究过程中增加了它们的容量并降低了失活率

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Physicochemical and Catalytic Properties of Rhenium-Containing Zeolites in the Course of Straight-Run Gasoline Upgrading

Catalysts for upgrading of the straight-run gasoline fraction of oil were prepared on the basis of a ZSM‑5 zeolite via dry mechanical mixing with an ultrafine rhenium powder. It was shown how the structural and acidic characteristics of zeolite ZSM‑5 changed when it was modified with rhenium. The concentration and nature of carbon condensation products formed on the prepared catalysts during the processing of straight--run gasoline have been determined. An enhancement of operating efficiency of rhenium--containing zeolite catalysts in comparison with an unmodified zeolite was established, which consisted in increasing their capacity and reducing the rate of deactivation in the process under study

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来源期刊

Journal of Siberian Federal University. Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.10

自引率

0.00%

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