Deactivation of La-X zeolites in isobutane/2-butene alkylation

Carsten Sievers, Iker Zuazo, Alexander Guzman, Roberta Olindo, Johannes A. Lercher

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


The reaction leading to deactivation of La-X zeolites in isobutane/2-butene alkylation was studied. In the beginning of the reaction, carbenium ions were formed on Brønsted acid sites. After 1.9 hr on stream these parameters become constant, and quantitative conversion of 2-butene was observed. The carbon content increased strongly due to the formation of polymerization products on Lewis acid sites outside the zeolite pores. The conversion of 2-butene started decreasing rapidly after 12.9 hr on stream rapidly. Analysis of the carbonaceous deposits showed that bicyclic compounds with alkyl side chains were the dominant species formed on the catalyst. This is an abstract of a paper presented at the AIChE Annual Meeting (Salt Lake, UT 11/4-9/2007).

Original languageEnglish
Title of host publication2007 AIChE Annual Meeting
StatePublished - 2007
Event2007 AIChE Annual Meeting - Salt Lake City, UT, United States
Duration: 4 Nov 20079 Nov 2007

Publication series

Name2007 AIChE Annual Meeting


Conference2007 AIChE Annual Meeting
Country/TerritoryUnited States
CitySalt Lake City, UT


Dive into the research topics of 'Deactivation of La-X zeolites in isobutane/2-butene alkylation'. Together they form a unique fingerprint.

Cite this