liquid ethylene tanks

liquid ethylene tanks

Ethylene Tanks

Ethylene tanks are the cryogenic vessels that are used to store liquefied Ethylene. Cryogenic tanks are also utilized for storing gases like liquefied natural gas, liquid nitrogen, helium, argon, and nitrous oxide at low temperatures.

Applications of Ethylene
C2H4, the most crucial building element in the petrochemical industry, is the primary component. It is used to produce polyethylene, ethylene Dichloride, Styrene, and glycols, among other products.

Liquid Ethylene is stored at extremely low temperatures (-103degC). Cryogenic tanks have become common. Pipelines are commonly used to transport C2H4. Trucks are also used to transport liquid Ethylene. These tanks can be made from stainless steel, carbon steel, or both for low temperatures.

liquid ethylene tanks

Properties of Ethylene

MF: C2H4
CAS No.: 74-85-1
Grade Standard: Industrial Grade to UHP Grade
Purity: 99.9%
DOT Class: 2.1
UN NO.: 1962
Molecular weight:28.054 g/mol

Melting point:-169.2 °C
Latent heat of fusion (1,013 bar, at the triple point): 119.37 kJ/kg
Liquid phase

Liquid density (1.013 bar at boiling point):567.92 kg/m3
Liquid/gas equivalent (1.013 bar and 15 °C (59 °F)):482 vol/vol
Boiling point (1.013 bar): -103.8 °C
Latent heat of vaporization (1.013 bar at boiling point):482.86 kJ/kg
Vapour pressure (at 5 °C or 41 °F) : 47.7 bar
Critical point

Critical temperature:9.5 °C
Critical pressure:50.76 bar
Gaseous phase

Gas density (1.013 bar at boiling point): 2.085 kg/m3
Gas density (1.013 bar and 15 °C (59 °F)) : 1.178 kg/m3
Compressibility Factor (Z) (1.013 bar and 15 °C (59 °F)): 0.9935
Specific gravity (air = 1) (1.013 bar and 0 °C (32 °F)) : 0.974
Specific volume (1.013 bar and 21 °C (70 °F)) : 0.862 m3/kg
Heat capacity at constant pressure (Cp) (1.013 bar and 15 °C (59 °F)):0.042 kJ/(mol. K)
Heat capacity at constant volume (Cv) (1.013 bar and 15 °C (59 °F)):0.034 kJ/(mol. K)
Ratio of specific heats (Gamma: Cp/Cv)(1.013 bar and 15 °C (59 °F)):1.242623
Viscosity (1.013 bar and 0 °C (32 °F)):0.0000951 Poise
Thermal conductivity (1.013 bar and 0 °C (32 °F)) : 16.83 mW/(m.K)

Cryogenic Vessels

Liquid Ethylene Storage Tank

We offer various tanks and equipment, including aboveground ethylene storage tanks.
Tanks for storing Ethylene in various capacities, ranging from 500 to 500,000 litres.
Our technicians, drivers, and customer service staff are ready to provide you with competitive prices, reliable delivery of Ethylene tanks, friendly service, and a team of highly experienced technicians and drivers.

All accessories, such as safety fittings and valves, are included with the tanks.
Type: horizontal and vertical
MOC: Low-temperature Carbon Steel or Stainless Steel
Design code: ASME Sect. VIII Div. 1 or 2, AD Merkblatter PD5500 TEMA DOT and many more
The ethylene tanks are either vacuum insulated or Puf insulated with a 20 gauge aluminum sheet barrier. Liquid Ethylene Transfer Pump with Pipeline for loading and unloading Liquid Ethylene to and from customer storage tanks. Process piping, valves, and fittings. Differential Pressure liquid level indicator. Safety valves are provided with an isolation or diverter as a tank essential for safety.

The vacuum-insulated liquid Ethylene storage tank is available in different sizes. The inner and outer tanks are made of stainless steel, with perlite and vacuum in the annular space.

The sizeable liquid ethylene tanks are designed with a single-wall flat bottom without a roof. The outer tank has a flat bottom, and the Roof is supported by a domed roof of steel on the external tank walls, along with a suspended deck to provide insulation.

Transport Tank for liquid Ethylene.

Our transport tanks for liquid Ethylene are designed to meet industry standards and are equipped with essential safety fittings and accessories, such as unloading pumps, valves, and other necessary components. These tanks are available in various sizes, ranging from 5kl to 50kl, providing flexibility to suit different capacity requirements. The tank is equipped with a 200 mm thick PUF (Polyurethane Foam) insulation to prevent liquid evaporation.

We utilise a low-pressure transport system that incorporates insulated tanks to transport liquid Ethylene in large quantities. The core component of the vehicle consists of protected vessels designed to meet specific vehicle models and resemble storage vessels. The lockable cabin at the rear of the vehicle houses valves, safety fittings, and liquid transfer pumps. We provide all the required documentation and approvals, including mounting arrangements to obtain statutory permission from road transport authorities. The transport tank’s capacity can vary between 1 MT and 25 MT, depending on the customer’s specific requirements and the selected vehicle model.

Our transport tanks feature vacuum-insulated tanks or 200mm PUF insulation with a 20-gauge aluminium sheet barrier, ensuring optimal insulation properties for the safe transport of liquid Ethylene. Additionally, they are equipped with a differential pressure liquid level indicator to indicate the fluid level in millimetres accurately. Safety valves, essential for ensuring the tank’s safety, are available with isolation or diverter options. These comprehensive features and specifications guarantee liquid Ethylene’s secure and efficient transportation.


argon diaphragm compressor


DSW offers a complete line of Cryogenic pumps for Oxygen/Nitrogen/Argon. Liquid from the cryogenic tank is compressed to high pressure in a cryogenic liquid pump. It is then vaporized in an ambient air vaporizer to produce gaseous oxygen/Nitrogen/Argon. The high-pressure gas then can pass into cylinders via the gas manifold or fed into a customer’s product pipeline.

No comment

Leave a Reply

Your email address will not be published. Required fields are marked *