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n-Heptane Isomerization over the Shaped Catalyst Pt/WO_(3)- ZrO_(2) and the Role of the Pseudo-Boehmite Binder

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摘要 The present paper reports new results regarding the addition of pseudo-boehmite as a binder during the synthesis of shaped Pt/WO_(3)-ZrO_(2)-Al_(2)O_(3) (PtWZA) catalysts. Binder shaping can noticeably influence not only the structure and acidity of catalyst and improve its catalytic performance with regard to n-heptane isomerization, but the mechanical strength of the catalyst. A suitable binder content can improve the isomerization activity or selectivity by changing the acidity of PtWZA. The influence of the binder content depends on the WO_(3) content of the catalyst. PtWZA catalysts that contain 5%-15% binder on a dry basis exhibit favorable isomerization performance that depends on WO_(3) content. Suitable catalysts include Pt20WZ5A and Pt30WZ15A, which provide conversions of approximately 80%-90% and a selectivity of 90%. These new findings enrich researcher knowledge of the effect of the binder on the catalyst shaping process and are useful in the production of industrial catalysts.
出处 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2022年第3期32-43,共12页 中国炼油与石油化工(英文版)
基金 financial support from the National Natural Science Foundation of P. R. China (21103049)
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