VPSA Oxygen Generation
Gas Separation
Hydrogen Energy
Green & Energy-Efficient
Oxy-Fuel Combustion Technology
Ozone Generation
Equipment Leasing & Operation Services
Resource Utilization of Industrial Exhaust Gas
China, as the world's top steel producer, annually generates a massive volume of carbon-containing off-gases from its steelmaking processes, including blast furnace gas (20-25% CO), basic oxygen furnace gas (60-70% CO), and coke oven gas 55-60% H2). C1 chemistry, which uses single-carbon compounds like CO and CH4 as feedstocks, relies heavily on the syngas (CO + H2) route, accounting for more than half of the capacity in modern coal-to-chemicals industry.Purifying steel off-gases directly via PSA or membrane separation technologies(CO≥98% and H2≥99.5%) for C1 chemical production can help optimize chemical raw material costs while increasing the value-added of the gases.
Through steel–chemical integration, by-product gases can be converted into methanol,ethylene glycol, and other chemical products, forming an industrial symbiosis system between steelmaking and chemicals. This model helps reduce carbon emissions per ton of steel produced, positioning it as an important pathway for the steel industry to achieve its Dual Carbon Goals.
Lirun Technology has utilized a copper-loaded adsorbent and a multi-bed PSA process that achieve N2/CO separation. Even under gas streams containing 60–80% N2, the system is designed to achieve CO purity of 99.5%, providing critical technical support for steel–chemical integration
The company of lirun Technology has designed a “compression–deep purification–enrichment” full-process solution that ensures a designed sulfur content controllable below 0.1 ppm and a designed CO purity reaching above 99%. Under the designed target operating conditions, it helps reduce energy consumption and optimize chemical production costs
By substituting coal-derived gas with steel plant gas, Steel-Chemical Coproduction cuts feedstock costs while effectively hedging against the risk of swings in coal prices. Industrial practice shows that under the designed target operating conditions methanol production costs can be optimized, offering a certain competitive advantage
By utilizing CO resources (a designed conversion rate of above 85%) and purifying gases (a designed desulfurization rate of above 95%), Steel-Chemical Coproduction helps steel makers save energy and reduce emissions and achieve ultra-low emission standards. At the same time, it builds a steel–chemical symbiotic value chain, enhances risk resilience, reduces chemical raw material costs, and accelerates the industry's low-carbon transition
