Abstract
The alkylation of isobutane with 2-butene has been studied in a slurry reactor on the iso-structural H-SAPO-37 and dealuminated faujasite (FAU) catalysts. It was found that mainly dimerization takes place on H-SAPO-37 by producing C 8 olefins. In the small fraction of C 8 paraffins, the 3,4-dimethylhexane (3,4 DMH) was the most abundant compound. The dealuminated H-FAU catalyst, on the other hand, produced mainly the desired trimethylpentanes (TMPs). The number and strength of the acid sites in H-SAPO-37 and dealuminated H-FAU were investigated by NH 3-TPD and IR spectroscopy, revealing a considerably higher relative concentration of strong acid sites in the dealuminated H-FAU catalyst compared to H-SAPO-37. Using the ratio of pyridine adsorbed at 400°C and 250°C as a measure of the ratio of strong to weak acid sites in the samples, ratios of 0.40 and 0.65 were obtained for the H-SAPO-37 and dealuminated H-FAU, respectively, ranking the dealuminated H-FAU as a much better catalyst than H-SAPO-37 in the isobutane/2-butene alkylation reaction.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
