The Performance of Catalytic Conversion of ZSM-5 Comodified with Gold and Lanthanum for Increasing Propylene Production,Industrial & Engineering Chemistry Research

当前位置： X-MOL 学术 › Ind. Eng. Chem. Res. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

The Performance of Catalytic Conversion of ZSM-5 Comodified with Gold and Lanthanum for Increasing Propylene Production
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2019-08-05 , DOI: 10.1021/acs.iecr.9b02612
Qi Liu ₁ , Miao Zhang ₁ , Libo Sun ₁ , Huijuan Su ₁ , Xuhua Zou ₁ , Caixia Qi ₁

Affiliation

Catalytic conversion of n-octane and light diesel oil was carried out over ZSM-5 comodified with gold and lanthanum by modified deposition-precipitation and wet impregnation methods. A series of ZSM-5 modified with gold catalyst (Au/ZSM-5) and comodified with gold and lanthanum (Au/La-ZSM-5) were prepared and their catalytic activity were comparied to study the relationship between catalytic activity and Au–La loading. The catalytic cracking reaction over modified ZSM-5 was carried out at 260–460 °C under ambient pressure. The catalysts were characterized by X-ray diffraction (XRD), N₂ adsorption–desorption, temperature-programmed desorption of NH₃(NH₃-TPD), transmission electron microscopy (TEM) with EDS analysis. Compared with Au/ZSM-5 catalyst, the modification of lanthanum promoted the cracking and prevented the accumulation of gold, thus stabilizing gold nanoparticles and improving the catalytic performance.

中文翻译：

金和镧共修饰的ZSM-5催化转化提高丙烯产量的性能

通过改进的沉积沉淀和湿法浸渍法，在与金和镧共改性的ZSM-5上进行了正辛烷和轻柴油的催化转化。制备了一系列用金催化剂修饰的ZSM-5（Au / ZSM-5）并用金和镧共修饰（Au / La-ZSM-5）并比较了它们的催化活性以研究催化活性与Au–载入中。改性ZSM-5的催化裂化反应是在260–460°C的环境压力下进行的。通过X射线衍射（XRD），N ₂吸附-脱附，程序升温脱附的NH ₃（NH ₃-TPD），具有EDS分析的透射电子显微镜（TEM）。与Au / ZSM-5催化剂相比，镧的改性促进了裂化并阻止了金的积累，从而稳定了金纳米颗粒并提高了催化性能。

更新日期：2019-08-05

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南