In modern integrated steel production systems, VPSA oxygen generation technology is becoming one of the important solutions for oxygen-enriched blast furnace smelting. Its advantages are mainly reflected in three aspects:

1. The specific oxygen purity requirement of blast furnace operations (oxygen-enriched air rather than pure oxygen) can be perfectly met through the intelligent blending of VPSA-produced oxygen with air.

2. Compared with traditional cryogenic oxygen generation, VPSA technology can reduce oxygen production costs.

3. With flexible start-stop capability and wide load adjustment capability,VPSA systems can effectively adapt to fluctuations in plant-wide oxygen demand, with the target of keeping the oxygen venting rate below 5%.

Leveraging its proprietary front-end oxygen mixing system and extensive engineering expertise, Lirun Technology has delivered customized oxygen-enrichment solutions for large-scale steel enterprises. A single system can supply 6,500 Nm³/h of oxygen, effectively improving blast furnace productivity and reducing the fuel rate.

VPSA oxygen technology provides a stable oxygen supply (30–93% enrichment)for the smelting of copper, lead, zinc, nickel, and other nonferrous metals. Oxygen-enriched combustion effectively boosts productivity and reduces energy consumption. The technology is compatible with a variety of furnace types (bottom-blown, side-blown, and top-blown) and allows flexible oxygen supply adjustment, effectively lowering oxygen costs. For example, in copper smelting, oxygen-enriched processes not only deliver substantial energy savings but also increase SO₂ concentrations in flue gas, enabling efficient sulfuric acid production—achieving both environmental and economic benefits. VPSA technology has already been successfully applied in  multiple nonferrous smelting facilities.

Oxygen-enriched combustion is a key enabler of carbon capture in cement production. By blending oxygen with recycled high-CO₂ flue gas, the system generates flue gas streams containing over 75% CO₂, ffective for subsequent capture and utilization.

While oxygen cost has historically limited adoption, the maturity of VPSA technology has enabled breakthroughs in cement kilns. Lirun Technology's VPSA oxygen generation technology helps cement enterprises achieve both energy savings and emissions reduction, demonstrating broad market prospects.

Lirun Technology's VPSA oxygen systems provide a stable 93% purity oxygen supply for the glass and fiberglass industries, enabling oxygen-enriched and full-oxygen combustion to replace traditional air-based combustion.

This technology achieves good energy-saving results while reducing NOx emissions. Given the stringent oxygen stability requirements of glass furnaces, we offer equipment leasing and professional O&M services to ensure safe, reliable supply and effectively address high oxygen costs.

Full-oxygen combustion, using 90–93% pure oxygen with coal, natural gas, or heavy oil, optimizes the energy utilization model of glass melting furnaces.

Oxygen-enriched combustion technology demonstrates significant application value in the new energy sector: 

· In laterite nickel ore smelting, the oxygen-enriched side-blow process can increase thermal efficiency, while enabling precise control of ferronickel grade. 

· In the calcination of high-nickel ternary materials, the use of 93% purity oxygen combined with an intelligent regulation system effectively reduces energy consumption costs. 

· In lithium battery electrode production, high-purity oxygen is used as a protective atmosphere, effectively enhancing product consistency.

Through these innovative applications, oxygen-enriched technology achieves an improvement in energy efficiency, providing essential technical support for the advancement of the new energy industry.