Method for converting a C4-C6 olefin into ethylene, propylene and/or butylene
AssigneeKing Fahd University of Petroleum and Minerals
InventorPalani Arudra
Life of this patent
Estimating the term…
Abstract
A method for producing a fluoride functionalized zeolite catalyst is described, having a F/Si molar ratio of 0.1:1-3:1. The method involves mixing a fluoride salt with zeolite components to form a gel, which is then hydrothermally treated and calcined. The fluoride functionalized zeolite catalyst may be used for cracking an olefin stream into ethylene, propylene, and butylene, with high selectivity towards propylene. The fluoride functionalized zeolite catalyst may be used for 50 or more hours with a stable conversion rate and low coke formation.
Claims8
A method of using a fluoride functionalized zeolite catalyst to convert a C4-C6 olefin into ethylene, propylene, and/or butylene, the method comprising:
- contacting a gas stream comprising the C4-C6 olefin with the fluoride functionalized zeolite catalyst at a temperature of 400-700° C. to produce ethylene, propylene, and/or butylene,
- wherein the fluoride functionalized zeolite catalyst has a F to Si molar ratio of 0.1:1.0-3.0:1.0, an average particle size of 0.1-5.0 mm, and
- wherein at least 75 mol % of the C4-C6 olefin present is converted to ethylene, propylene, and/or butylene.
Dependencies are inferred from the claim text.