Practical Application of Hierarchical Beta Zeolite in a Vacuum Gas Oil Hydrocracking Catalyst,Chemical Engineering & Technology

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Practical Application of Hierarchical Beta Zeolite in a Vacuum Gas Oil Hydrocracking Catalyst
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-09-07 , DOI: 10.1002/ceat.202000087
Weimin Zhang ₁ , Bo Qin ₂ , Wenxi Li ₁ , Kaige Hou ₁ , Yanze Du ₂ , Jinghong Ma ₁ , Ruifeng Li ₁

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A hierarchical Beta zeolite has been successfully mass‐prepared hydrothermally and dynamically in a pilot‐scale autoclave by an economical and simple process with low‐cost raw materials. The characterization results indicated that the pilot‐scale hierarchical Beta zeolite has the same textural, structural, and acidic properties like the bench‐scale sample. Moreover, the catalyst composed of the pilot‐scale hierarchical H‐Beta zeolite showed higher activity and selectivity to the middle distillate than that containing microporous Beta zeolite in catalytic hydrocracking of vacuum gas oil (VGO) evaluated by an industrial pilot installation in running of 3000 h, due to the increased accessibility and the reduction of diffusion constraint of large molecules to acid sites in the Beta zeolite framework.

中文翻译：

分层β分子筛在真空瓦斯油加氢裂化催化剂中的实际应用

分层的Beta沸石已通过经济，简单的工艺和低成本的原料，在中试规模的高压釜中成功地进行了水热和动态的大规模制备。表征结果表明，中试规模的分级Beta沸石具有与台式样品相同的质地，结构和酸性性质。而且，由中试馏分H-Beta沸石组成的催化剂在真空瓦斯油（VGO）的催化加氢裂化过程中，在运行3000次的条件下，比含微孔Beta沸石的催化剂具有更高的活性和选择性。 h，由于增加了可及性并降低了大分子向Beta沸石骨架中酸性位点的扩散限制。

更新日期：2020-10-20

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