All customerprocesses that use gases - Messer Group Anwendungstechnik

Verschachtelte Anwendungen

Verschachtelte Anwendungen

Asset-Herausgeber

Oxygen Supply Solutions Duplicate 2

Oxygen Supply Solutions Duplicate 2

Nitrogen Supply Solutions

Gas Cylinders Bulk supply VPSA CryoGox ASU

The VPSA Oxygen generator production line consists of the main technological equipment:

The VPSA Oxygen generator production line consists of the main technological equipment:

VPSA ( just for draft)

adsorber process buffer head exchanger skid process air blower unit valve skid blower unit The presence of a backup system allows our client to continue working during preventive maintenance, equipment maintenance and possible force majeure situations. During such periods, the Customer will be supplied with Oxygen through a back-up system. Our regional logistics network with centrally managed Europe-wide coordination, combined with sophisticated production planning, ensures that every single customer receives a reliable supply of technical gases from Messer, even during planned and unplanned downtimes Back-up system

The VPSA Oxygen generator production line consists of the main technological equipment:

The VPSA Oxygen generator production line consists of the main technological equipment:

VPSA ( just for draft)

1. Air is drawn in and filtered. 2. O2 - Oxygen can flow through Containers switch between adsoption 2. N2 - Nitrogen stick to porous substance (absorbent)... and regeneration every 10 seconds 3. O2 - ...and is conducted into the buffer storage tank. 3. N2 -....and is drawn off by the vacuum pump during regeneration 4. N2 - ... and discharged. 4. O2 - Oxygen with a purity of 90 to 94 % goes directly to production. Adsorption - selective adhesion of gas molecules to a porous substance Regeneration - removal of the adsorbed gas molecules throught a reduction in pressure

The VPSA process

The VPSA process

VPSA ( just for draft)

Working principle

Working principle

ASU

1. Compression of air – Ambient air is drawn in, filtered and compressed ... 2. Precooling of air – ... and precooled with chilled water. 3. Purification of air – Impurities such as water vapor and carbon dioxide are then removed from the air in a so-called molecular sieve. 4. Cooling of air – Because the gases which make up air only liquefy at very low temperatures, the purified air in the main heat exchanger is cooled to approx. -175°C. The cooling is achieved by means of internal heat exchange, in which the flows of cold gas generated during the process cool the compressed air. Rapid reduction of the pressure then causes the compressed air to cool further, whereby it undergoes partial liquefaction. Now the air is ready for the separating column, where the actual separation takes place. 5. Separation of air – Separation of air into pure oxygen and pure nitrogen is performed in two columns, the medium-pressure, and the low-pressure columns. The difference in boiling point of the constituents is exploited for the separation process. Oxygen becomes a liquid at -183°C and nitrogen at -196°C. The continuous evaporation and condensation brought about by the intense exchange of material and heat between the rising steam and the descending liquid produces pure nitrogen at the top of the low-pressure column and pure oxygen at the bottom. Argon is separated in additional columns and involves some extra steps in the process. 6. Withdrawal and storage – Gaseous oxygen and nitrogen are fed into pipelines for transport to users, e.g., steelworks. In liquid form, oxygen, nitrogen and argon are stored in tanks and transported to customers by road tankers

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