Effect of cofeeding butane with methanol on the deactivation by coke of a HZSM-5 zeolite catalyst

Andrés T. Aguayo, Pedro Castaño, Diana Mier, Ana G. Gayubo, Martin Olazar, Javier Bilbao

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

The deactivation by coke of a HZSM-5 zeolite catalyst has been studied in the transformation of methanol into hydrocarbons by cofeeding butane (n-butane). This reaction is of interest as an energy-neutral integrated process that enhances the activity in the cracking reaction and upgrades the paraffins formed as byproducts. The process was carried out in a fixed-bed reactor under the following conditions: temperature, 550 °C; pressure, 1 bar; space time, 2.4 and 4.8 (g of catalyst) h (mol of CH2)-1; time on stream, 5 h; methanol/butane molar ratio, up to 16/1. The coke was characterized using several analytical techniques (TG-TPO, FTIR, Raman, and NMR spectroscopies), and the effects of cofeeding butane on the coke composition and structure were determined. The results in terms of coke content and composition, are explained in terms of the different pathways of methanol and butane transformation. © 2011 American Chemical Society.
Original languageEnglish (US)
JournalIndustrial and Engineering Chemistry Research
Volume50
Issue number17
DOIs
StatePublished - Sep 7 2011
Externally publishedYes

Fingerprint Dive into the research topics of 'Effect of cofeeding butane with methanol on the deactivation by coke of a HZSM-5 zeolite catalyst'. Together they form a unique fingerprint.

Cite this