METHODS AND APPARATUSES FOR ISOMERIZATION OF PARAFFINS

摘要

Embodiments of methods and apparatuses for isomerization of paraffins are provided. In one example, a method comprises the steps of separating an isomerization effluent into a product stream that comprises branched paraffins and a stabilizer overhead vapor stream that comprises HCl, H2, and C6-hydrocarbons. C6-hydrocarbons are removed from at least a portion of the stabilizer overhead vapor stream to form a HCl and H2-rich stream. An isomerization catalyst is activated using at least a portion of the HCl and H2-rich stream to form a chloride-promoted isomerization catalyst. A paraffin feed stream is contacted with the chloride-promoted isomerization catalyst in the presence of hydrogen for isomerization of the paraffins.

主权项

1. A method for isomerization of paraffins, the method comprising the steps of:
separating an isomerization effluent (42) into a product stream (44) that comprises branched and un-branched paraffins and a stabilizer overhead vapor stream (46) that comprises HCl, H2, and C6-hydrocarbons; removing C6-hydrocarbons from at least a portion of the stabilizer overhead vapor stream (46) to form a HCl and H2-rich stream (40); activating an isomerization catalyst using at least a portion of the HCl and H2-rich stream (40) to form a chloride-promoted isomerization catalyst; and contacting a paraffin feed stream (22) with the chloride-promoted isomerization catalyst in the presence of hydrogen for isomerization of the paraffins.