| Execution Time |
from: 01/2018
to: 12/2018 |
| Execution Stage |
Basic Design
Detail Design
Engineering, Procurement
|
| Client | KAZANORGSINTEZ |
The scope was design and procurement of a Coke and Tar Removal Package (CTRP) from the quench water loop at the ethylene plant. The CTRP removed coke and tar without any necessity for shutdown of the quench water loop, with no negative impact to the environment and to health and safety.
The principle of the process is the continuous removal of coke solid particles and liquid tar in hydrocyclones with subsequent filtration and washing procedure to obtain a dry solid phase. This patented process of this system has been developed and is owned by Intecha (process technology).
The inlet stream is divided into two streams by hydrocyclones, the main stream of clean quench water, which goes to steam evaporators, and a considerably smaller stream with concentrated solid coke and tar particles, which goes to final separation of coke and tar from quench water. The separation is carried out inside special coke filters periodically. The separated tar is continuously removed outside from quench water loop. Filtered coke is dried after washing procedure and sent as a dry solid material to incineration.
Installation of the coke and tar removal unit increases EP efficiency and significantly saves operational costs, increases operational life of the equipment and it also reduces contamination of the environment. Incorporation of this process enables ethylene units to prolong operational cycles between shutdowns.
