METHOD FOR QUENCHING PARAFFIN DEHYDROGENATION REACTION IN COUNTER-CURRENT REACTOR

摘要

A process is presented for quenching a process stream in a paraffin dehydrogenation process. The process comprises cooling a propane dehydrogenation stream during the hot residence time after the process stream leaves the catalytic bed reactor section. The process includes cooling and compressing the product stream, taking a portion of the product stream and passing the portion of the product stream to the mix with the process stream as it leaves the catalytic bed reactor section.

主权项

1. A process for controlling temperatures in a dehydrogenation reactor, comprising:
passing a catalyst to a dehydrogenation reactor, such that the catalyst flows down through the reactor; passing a paraffin rich stream to the dehydrogenation reactor such that the paraffin rich stream flows up through the reactor section, thereby creating a process stream in a separation section above the reactor section comprising catalyst and dehydrogenated hydrocarbons and some unconverted paraffins; separating the vapor phase from the process stream thereby creating a product stream; passing the product stream to a cooling unit, thereby creating a cooled product stream; and passing a portion of the cooled product stream to the separation section.