Diesel Production by Catalytic Cracking of Castor Oil Using Aluminas and Silicas

IF 2.3 4区化学 Q3 CHEMISTRY, PHYSICAL

Catalysis Letters Pub Date : 2024-12-02 DOI:10.1007/s10562-024-04874-w

Eric B. Ribeiro, Leila O. Daher, Elaine A. Faria, Fernando C. Garcia, Mirian S. C. Pereira, Joel C. Rubim, Alexandre G. S. Prado, Paulo A. Z. Suarez, Romulo D. A. Andrade

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Abstract

The purely thermal cracking of castor oil produces a mixture of compounds with unsatisfactory fuel properties, as high viscosity, high acid value and low cetane index. This low quality is associated with high value of oxygenated products in obtained product composition. The aim of this work was to improve the physical–chemical properties of cracking product (pyrolysis) of castor oil using different catalysts, such as silica and silica doped with titanium (IV) oxide, and alumina and alumina doped with zinc(II), tin(II), titanium(IV) and zirconium(IV) oxides. The study of the physical–chemical properties of the castor oil cracking products showed that all these catalysts have activity in the deoxygenating, being the better results reached using pure and doped alumina. We also studied the catalytic activity of laboratory synthesized alumina (pure and as support for Lewis acid metals), commercial silica (Merck) and titanium (IV) oxide supported on silica, in the cracking of castor oil. It was observed that the aluminas showed better activity in the deoxygenating of the products than silicas. This fact can be explained by higher acidity and mesoporous characteristic of the aluminas.

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来源期刊

Catalysis Letters 化学-物理化学

CiteScore

5.70

自引率

3.60%

发文量

327

审稿时长

1 months

期刊介绍： Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis. The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.