Methanol Conversion and Propene Oligomerization Productivity of Dealuminated Large-Port Mordenites

• Published in: Industrial & engineering chemistry research Vol. 35; no. 3; pp. 697 - 702
• Main Authors: van Niekerk, Miles J, O'Connor, Cyril T, Fletcher, Jack C. Q
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 1996
• Subjects: Catalysis; Catalytic reactions; Chemistry; Exact sciences and technology; General and physical chemistry; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Catalytic reaction; Oligomerization; Hydrocarbon; Selectivity; Zeolite; Experimental study; Optimization; Molecular sieve; Primary alcohol; Chemical conversion; Dealumination; Propene; Mordenite; Kinetics; Performance; Catalyst activity; Catalyst; Ethylenic compound; Modified material; Methanol
• ISSN: 0888-5885; 1520-5045
• DOI: 10.1021/ie9503454

Four different types of large-port mordenite were studied. Three of these catalyst samples were dealuminated by treatment with nitric acid, and the fourth type was a series of commercially available dealuminated mordenites. The methanol conversion and propene oligomerization productivities and selectivities of these dealuminated mordenites were investigated on a laboratory scale at typical industrial reaction temperatures and pressures. The optimum catalyst morphology and degree of dealumination needed for maximum productivity were found to be similar for both methanol conversion and propene oligomerization. High catalytic productivities were obtained with mordenite which had been hydrothermally dealuminated or with small crystallites which had been synthesized or dealuminated in such a way as to minimize the amount of extra-framework aluminum in the mordenite pores.