Interchangeable quench gas injection ring.

摘要

An apparatus for injecting quench gas (cooled syngas) through an injection ring located around the circumference of the gasifier exit duct and having ports in communication with the interior of said duct to achieve thorough mixing of the gasifier gas with the injected quench gas. Interchangeable rings having different configurations and dimensions of the ports may be used to accommodate various types of coal. The rings may be fabricated in sections for ease of maintenance and replacement.