References

Wash Oil Still

Wash Oil Still is a part of process equipment to recover benzole from the coke oven gas of the coke oven plants chemical part.

The purpose of the Wash Oil Still is stripped benzole from the saturated wash oil (viscosity approx. 2 – 4°E) and recovers the absorption ability of the wash oil. The Wash Oil Still is an equipment of the column type equipped with special bridge trays.

From the bottom part of the Still the wash oil with residual benzole concentration approx. 0.3% wt. is discharged and return back to the process and from the top part of the Still the mixture of water and benzole vapours are released.

To achieve maximal value of the stripped benzole with minimal moisture and naphthalene content is the main goal of the process.

Released mixture of water and benzole vapours is condensed in downstream benzole coolers to the temperature about 35°C depending on the cooling water parameters.

The stripped benzole at the outlet contains about 95% wt. of distillation fraction up 180°C.

Summary of the latest installations:

Client End-user Quantity of wash oil m3/hod Scope of Work Put in operation
TŘINECKÉ ŽELEZÁRNY a.s., Třinec
Czech Republic
TŘINECKÉ ŽELEZÁRNY a.s.,
Třinec
Czech Republic
20 Basic design, equipment supply, supervision of erection and commissioning 11/2002
VOKD a.s., Ostrava Czech Republic OKD OKK a.s., Koksovna Svoboda
Czech Republic
54 Basic design, equipment supply, erection and commissioning 4/2003
POLIMEX-MOSTOSTAL S.A., Warsaw
Poland
KOKSOWNIA Przyjaźń Sp. z o.o.
Poland
240 Basic design, equipment supply, supervision of erection and commissioning 8/2008
BIURO PROJEKTOW KOKSOPROJEKT Zabrze
Poland
KOKSOVNIA Victoria Walbrzych Poland 45 Basic design, equipment supply, supervision and commissioning 5/2008
TŘINECKÉ ŽELEZÁRNY a.s., Třinec, Czech Republic TŘINECKÉ ŽELEZÁRNY a.s., Třinec, Czech Republic 60 Basic and detail design, equipment supply, supervision and commissioning 5/2013
KOKSOPROJEKT, Zabrze JSW KOKS S.A., KOKSOWNIA Przyjaźń, Dabrowa Górnicza, Poland 240 Basic and detail design, equipment supply, supervision and commissioning 10/2014

Note: The WO Still of output 240 m3/hour for the client Koksoprojekt is integrated with WO regenerator and tar storage tank in acc. with the client's design.