Method of catalytic conversion of butane
AssigneeSociete Nationale Elf Aquitaine
InventorsJean-Rene Bernard, Jacques Bousquet, Michel Grand
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Abstract
In a method of catalytic conversion of a butane cut to propane, a butane cut and hydrogen are introduced respectively into a reaction zone containing a catalyst consisting of mordenite in acid form in such a manner as to ensure that the partial pressure of hydrogen is higher than 5 bar.
Claims16
A method of catalytic conversion of a butane cut to propane, wherein said method consists in introducing into a reaction zone containing a catalyst consisting of acid mordenite on the one hand a butane cut and on the other hand hydrogen so that the partial hydrogen pressure is higher than 5 bar.
A method of catalytically converting n and iso-butanes into propane comprising introducing the butane cut feedstock in liquid form at a spatial rate within the range of 0.1 to 10 h.sup.-1 into a reaction zone containing as catalyst an acid mordenite and having a partial hydrogen pressure of between 5 and 100 bar, the hydrogen/butane molar ratio is in the range of 2 to 20, said conversion conducted at a temperature within the range of 250.degree. to 550.degree. C, thereby catalytically converting said butane cut to propane.
In a catalytic process for converting a butane cut into propane, the improvement comprising contacting said butane cut with an acid mordenite catalyst in the presence of a partial hydrogen pressure of 20 to 80 bar in a reaction zone at a temperature of about 325.degree. to 450.degree. C, said process characterized by:
- a hydrogen/butane molar ratio within the range of 2 to 8, and
- a spatial rate of liquid butane feedstock introduction with the range of 0.5 to 5 h.sup.-1, thereby resulting in improved propane yields and avoiding the use of a hydrogenating metal.
Dependencies are inferred from the claim text.