Two-Step Dry Gel Method Produces MgAPO-11 with Low Aspect Ratio and Improved Catalytic Performance in the Conversion of Methanol to Hydrocarbons

Catalysts

Daniel Sean Firth¹  Lina Zhang¹  Unni Olsbye¹  Xiaojun Bao² 

[1] Center for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern, N-0315 Oslo, Norway;National Engineering Research Center of Chemical Fertilizer, College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China;

关键词: MgAPO-11;    methanol to hydrocarbons;    dry gel method;    crystal morphology;    candy like;   

DOI  :  10.3390/catal12040413

来源: DOAJ

【 摘 要 】

In this article, the synthesis, characterization and catalytic performance of three MgAPO-11 catalysts with distinct crystal morphologies (sunflower, ball and candy) are presented. Among the three samples, the candy-like MgAPO-11-C, with high crystallinity and uniform particle size (of about 1 µm), was synthesized for the first time by using a unique two-step dry gel method. Despite the similar acid strength of the three samples, the different and distinct morphologies of the catalysts resulted in very different methanol-to-hydrocarbons (MTH) performances. In particular, the candy-like MgAPO-11-C presented the best MTH performance with the highest total conversion capacity (4.4 g_MeOH·g_catalyst⁻¹ h⁻¹) and the best selectivity to C₅₊ aliphatics (64%).

【 授权许可】

Unknown