High-Purity Gas Supply: Supports BOF oxygen blowing, BF enrichment, and inert atmospheres with consistent, high-quality oxygen, nitrogen, and argon.
Energy-Efficient Operation: Advanced low-temperature separation technology, heat recovery, and control systems reduce electricity consumption, traditionally accounting for 10–15% of steel plant energy use.
Robust & Flexible Design: Stainless steel columns, turboexpanders, and molecular sieve dryers ensure reliable continuous operation. Multiple units can run in parallel to meet peak demand and provide redundancy.
Large-Scale Production: Capable of producing hundreds to thousands of tons of gas per day, suitable for high-volume steelmaking applications.
| Quality Index: | |||
| Product | Oxygen / Liquid oxygen | Nitrogen / Liquid nitrogen | Liquid argon |
| Purity | ≥99.6% | ≥99.9% | ≥99.999% |
Applications in Steel Production:
Blast Furnace Enrichment: Oxygen injection increases combustion efficiency and reduces coke consumption.
Basic Oxygen Furnace (BOF): High-purity oxygen oxidizes impurities and supplies the heat needed for melting scrap and pig iron.
Continuous Casting & Secondary Metallurgy: Argon is used for stirring molten steel and removing non-metallic inclusions, while nitrogen can provide inert atmospheres for cooling rolls or protective coverage.
Protective & Forming Atmospheres: High-purity nitrogen prevents oxidation and decarburization during heat treatment processes such as annealing, normalizing, or tempering.
FAQ
Can you customize the gas production scale of the air separation unit based on the BF/BOF capacity of different steel mills?
Yes. We will calculate the demand based on the steel mill's process route (such as blast furnace size, converter tonnage, number of continuous casting machines) and customize the daily output of oxygen, nitrogen, and argon. For example, an oxygen supply of 20,000 Nm³/h is suitable for a medium-sized converter, while a large integrated steel mill requires 50,000–80,000 Nm³/h. We provide complete customized solutions from process design, equipment selection, modular manufacturing, pipeline planning to parallel ASU redundancy configuration, ensuring perfect matching with production rhythm.
If our steel mill has high energy consumption pain points, can you customize a more energy-efficient ASU solution?
Yes. We support energy-saving customization in multiple dimensions, including: optimizing the cold box structure, adopting high-efficiency heat exchangers, configuring advanced turbine expanders, introducing intelligent control systems, and designing economical operating modes based on gas consumption fluctuations. We can also integrate waste heat recovery with the steel plant's existing energy center to achieve overall energy optimization, helping customers reduce ASU energy consumption by 8%–12%, significantly lowering operating costs.
Besides the main unit, can you provide complete delivery of auxiliary PSA, membrane systems, gas pipeline networks, etc.?
Yes. We not only manufacture core ASUs but also provide complete EPC and turnkey solutions, including PSA nitrogen/oxygen equipment, membrane oxygen/nitrogen enrichment modules, gas pressure regulating stations, plant pipeline laying, and automation systems. All equipment can be customized to the steel plant's local needs, realizing a combined gas supply architecture of central ASU + PSA/membrane unit, improving overall flexibility and reliability, and allowing for immediate production upon delivery.
Hot Tags: asu for steel industry, China asu for steel industry manufacturers, suppliers
