Gas injection element for a fluid catalytic cracking unit and gas distribution system equipped with this injection element
US10799844B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 22, 2018 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Feb 22, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0286
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas injection element (10) for a system for distributing a gas inside a chamber of a fluid catalytic cracking unit. This injection member comprises a passage (14) extending entirely therethrough, and—an inner ceramic member (20) having an inner surface (22) that entirely delimits the through-passage (14); and—a hollow metal sleeve (30), inside which at least a portion of the inner member (20) is received, the sleeve (30) and the inner member (20) respectively having an inner surface (32) and an outer surface (24) with matching shapes allowing the inner member (20) to move relative to the sleeve (30) in a direction parallel to an axis (X) of the passage (14), the outer (32) and inner surfaces (24) being provided with fastening elements (26, 36) that engage to reversibly fasten the sleeve and the inner member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.