CATALYTIC ACTIVITY OF SULFONIC CLAYS IN ALKYLATION OF ISOBUTANE WITH C 4 OLEFINS

  • C. Ramos–Galván Instituto Tecnológico de Cd. Madero, Div. de Estudios de Posgrado e Investigación Depto. de Ing. Química
  • G. Sandoval-Robles Instituto Tecnológico de Cd. Madero, Div. de Estudios de Posgrado e Investigación Depto. de Ing. Química
  • J. M. Domínguez-Esquivel Instituto Mexicano del Petróleo, Simulación Molecular
  • R. García-Alamilla Instituto Tecnológico de Cd. Madero, Div. de Estudios de Posgrado e Investigación Depto. de Ing. Química
  • J.A. Melo-Banda Instituto Mexicano del Petróleo, Simulación Molecular
Keywords: alkylation of i-C 4 fraction, acid activated clay, sulfated clays, heterogeneous catalysts

Abstract

Modified clays were prepared by means of the impregnation with a Brönsted acid. The surface acidity was determinated by adsorption of piridine and Hammett indicators, indicated a population of Brönsted type sites above 876 umol/g. The textural parameters of the supports and catalysts, such as surface area, pore volume and mean pore size were determined by means of N 2 physical adsorption. The results showed an increased in surface area (23 m 2 /g to 105 m 2 /g). The catalitic activity of the clay modified was evaluated by the alkylat on of i-C 4 parafins, at the bench scale in a fixed bed reactor, both in liquid and gas phase, using a iC 4 /C 4= molar ratio, which led to 5.5 % trimethylpentanes against 35.9 % of C 8= and 53.4 % of heavier C 9+ products for the catalysts prepared in liquid phase having higher acid strength, i.e. Ho ≈ -9.3. The catalysts were activated with trifluorometansulfonic acid.

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Published
2020-11-11
How to Cite
Ramos–Galván, C., Sandoval-Robles, G., Domínguez-Esquivel, J. M., García-Alamilla, R., & Melo-Banda, J. (2020). CATALYTIC ACTIVITY OF SULFONIC CLAYS IN ALKYLATION OF ISOBUTANE WITH C 4 OLEFINS. Revista Mexicana De Ingeniería Química, 2(1), 9-14. Retrieved from http://www.rmiq.org/ojs311/index.php/rmiq/article/view/2191

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