Sealing critical gases without compromise
Ethylene and Propylene, are separated and supplied to the petrochemical industry. The gas mixture largely consists of methane, propane, butane and hydrogen. As it is contaminated with various substances, the gas is cleaned in scrubbers and is often used for heating.
Demands are high: Extreme temperatures, high speeds and pressures, combined with flammability and the risks that the gases pose to the environment demand uncompromising technology and sealing.
Our robust DGS and PDGS compressor seals have established their position as the default solution in the field of gas-lubricated mechanical seals for critical gases such as oxygen, hydrogen or carbon dioxide.
The ENI refinery in Sannazzaro De' Burgondi, Italy, operates a Finder centrifugal pump in its gasification unit. The pump is sealed by EagleBurgmann HRKS4-DF/58 mechanical seals.
Operating conditions: p = 16.08 ... 19.93 bar (233 ... 289 PSI); t = 238 °C ... 263 °C (460 °F ... 505 °F); n = 2,955 min-1; d1 = 80 mm (3.15"). Medium: carbon slurry.
De-ethanizer pump in a LPG fractionation unit of the ENOC refinery, U.A.E., equipped with an unpressurized dual EagleBurgmann sealing system according to API 682. Configuration: 2CW-CS, piping plans 14 and 76.
Operating conditions: p = 36 ... 39 bar (522 ... 566 PSI); t = 1 °C ... 43 °C (34 °F ... 109 °F); n = 2,933 min-1. Medium: LPG. The MTBF has improved drastically since installation.
The two-stage screw compressor (Aerzen VR0825) used to compress coking oven gas in a coking plant is one of the biggest ever built. It is sealed with an EagleBurgmann type HSH2/215.
A GE-Thermodyn compressor - operated in the isomerization unit of the Tüpras Kirikkale refinery in Turkey - is safely sealed with EagleBurgmann dry gas seals type DGS9/123.
Operating conditions: p = 12.6 bar (182 PSI); t = 38 °C ... 150 °C (181 °F ... 302 °F); n = 12,915 min-1; d1 = 103 mm (5.06"). Medium: mixture of hydrocarbons.
Coking oven gas compressor (Mannesmann Demag) at Wintershall AG, Lingen. Originally equipped with labyrinth seals, the turbine-driven single-shaft radial compressor has been converted to EagleBurgmann dual DGS seals and a buffer gas supply system.
Operating conditions: p = 5.6 barg (81 PSIG); n = 12,800 min-1; d1 = 134.8 mm (5.3"). Medium: gas with H2S-content.
For a MAN Turbo compressor at Shell Godorf, Germany, EagleBurgmann has supplied a DGS20/113 dry gas seal together with a SMS seal management system. The compressor is operated in the gas processing section of the plant.
Operating conditions: p = 30 bar (435 PSI); t = -20 °C ... 180 °C (-4 °F ... 356 °F); n = 9,811 min-1; d1= 100 mm (3.94"). Medium: gas.
Read the complete case study
Would you like personal advice, do you have any questions or would you like to order directly? We look forward to supporting you.