Apparatuses and risers for reacting feedstock in the presence of catalyst and methods for fabricating risers

摘要

Embodiments of apparatuses and risers for reacting a feedstock in the presence of a catalyst and methods for fabricating such risers are provided. In one example, a riser comprises a sidewall that defines a cylindrical housing surrounding an interior. The sidewall has a groove formed therein disposed about the interior. A plurality of baffle sections is disposed in the groove. The baffle sections are configured to be packed together in the groove to define a packed condition and to be moved in the groove so as to spread out the baffle sections from the packed condition to define an expanded condition and form a baffle ring. The baffle ring extends inwardly in the interior.

主权项

1. A riser for reacting a feedstock in the presence of catalyst, the riser comprising:
a sidewall defining a cylindrical housing that surrounds an interior, wherein the sidewall has a groove formed therein disposed about the interior; and a plurality of baffle sections disposed in the groove and configured to be packed together in the groove to define a packed condition and to be moved in the groove so as to spread out the baffle sections from the packed condition to define an expanded condition and form a baffle ring that extends inwardly in the interior.