| 摘要 |
<p>An improved delayed coking unit with at least one coke drum (14) wherein said coke drum comprises a substantially closed interior, a top portion (34) having an aperture (36), an overhead vapor outlet nozzle (38) removably connected to the aperture, and a deflector (40) for deflecting solids and heavy hydrocarbon liquids from exiting said interior of said coke drum through said aperture.</p> |
