Process for isomerizing isobutane
AssigneeUop LLC
InventorsRam Ganesh Rokkam, Cora Wang Ploentham, Vaibhav Ramesh Thool
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Abstract
A process for increase conversion and yield and selectivity to normal paraffins by reducing the hydrogen to hydrocarbon ratio for paraffin feeds with substantial butanes. The process works best with a low concentration of heavies and cyclics in the isomerization feed. High normal ratios of equilibrium, isobutane conversion, normal paraffins yield and selectivities are achieved for naphtha feed at low ratios of hydrogen to hydrocarbons.
Claims20
A process for isomerizing isoparaffins to normal paraffins comprising:
- isomerizing a butane stream comprising at least about 5 mol % butanes and in which butanes comprise predominantly isobutane over an isomerization catalyst at isomerization conditions in the presence of hydrogen to increase the concentration of normal butanes at a hydrogen to hydrocarbon mole ratio at the outlet of no more than about 0.5.
A process for isomerizing isoparaffins to normal paraffins comprising:
- isomerizing a butane stream comprising at least about 5 mol % butanes and less than about 20 mol % pentanes and in which butanes comprise predominantly isobutane over an isomerization catalyst at isomerization conditions in the presence of hydrogen to increase the concentration of normal butanes at a hydrogen to hydrocarbon mole ratio at the outlet of no more than about 0.5.
A process for isomerizing isoparaffins to normal paraffins comprising:
- isomerizing a butane stream comprising at least about 5 mol % butanes and less than about 20 mol % pentanes and in which butanes comprise predominantly isobutane over an isomerization catalyst at isomerization conditions in the presence of hydrogen to increase the concentration of normal butanes at a hydrogen to hydrocarbon mole ratio at the outlet of about 0.01 to about 0.2.
Dependencies are inferred from the claim text.