Internal compression air separation
plant process is to produce gas products with medium/high pressure
directly from ASU without oxygen, nitrogen or argon compressors.
Internal compressor plant is also customer-oriented.
Compared with external compression process, the internal compression
process features on that the product oxygen pressure is achieved in cold
box with LOX pump. At present, the internal compression process is
widely used in ASU plants which require big amount of liquid product and
higher delivery pressure of gas product.
Without product compressors, so no high temperature gas product; less mechanical failures; safe operation;
When liquid product amount (total quantity of LOX, LIN and LAr) is
higher than 8-10% of total product quantity, internal compression plant
has lower power consumption than external compression plant. When liquid
product amount (total quantity of LOX, LIN and LAr) is lower than 8-10%
of total product quantity, external compression plant has lower power
consumption.
(source:http://www.airseparation-plant.cn/internal-compression-air-separation-plant/)
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