Optimizing the Production of Renewable Aromatics via Crop Oil Catalytic Cracking

Processes

Clancy Kadrmas¹  Malhar Khambete¹  Alena Kubátová²  Evguenii Kozliak²  Wayne Seames¹ 

[1] Department of Chemical Engineering, University of North Dakota, 241 Centennial Dr., Stop 7101, Grand Forks, ND 58202-7101, USA; E-Mails:;Department of Chemistry, University of North Dakota, 151 Cornell Street, Stop 9024, Grand Forks, ND 58202-9024, USA; E-Mails:

关键词: HZSM-5;    fatty acids;    crop oil;    aromatics;    design of experiments;   

DOI  :  10.3390/pr3020222

来源: mdpi

【 摘 要 】

While HZSM-5 catalytic cracking of crop oil toward aromatics have been well documented, this work adds to this body of knowledge with a full acid byproduct analysis that provides improved mass balance closure along with a design of experiment optimization of reaction conditions. Fatty acids are an inevitable byproduct when converting any triglyceride oil, but are most often overlooked; despite the impact fatty acids have on downstream processing. Acid analysis verified that only short chain fatty acids, mainly acetic acid, were present in low quantities when all feed oil was reacted. When relatively high fatty acid amounts were present, these were mainly uncracked C16 and C18 fatty acids. Optimization is a balance of aromatics formation vs. unwanted gas products, coke and residual fatty acids. A design of experiments approach was used to provide insight into where the optimal reaction conditions reside for HZSM-5 facilitated reactions. These conditions can then form the basis for further development into a commercially viable process for the production of renewable aromatics and other byproducts.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.