
NEWTEK
NEWTEK (Hangzhou) Energy Technology Co., Ltd. has firmly established itself as a world - class manufacturer in the gas generation systems industry. With a presence spanning over 100 countries and thousands of units delivered globally, the company specializes in on - site gas generation solutions tailored to a diverse range of industrial needs, with a particular focus on Pressure Swing Adsorption (PSA) technology.
NEWTEK's PSA oxygen generators are engineered with a high level of sophistication. These generators utilize PSA technology, which separates oxygen from ambient air. The process involves the use of molecular sieves that adsorb nitrogen under pressure and release it when the pressure is reduced, allowing for the production of high - purity oxygen. The standard purity levels achievable are typically 93%±3% or 99%, meeting the varying requirements of different industries.
The modular design of NEWTEK's PSA oxygen generators offers great flexibility. It allows for easy expansion or downsizing, enabling enterprises to adjust their oxygen production capacity according to changing demands. The company's generators are integrated with automated controls and real - time monitoring, ensuring seamless operation and consistent performance. These generators are energy - efficient, a key factor when considering the high - energy demands of industrial processes.
Backed by over 15 years of industry experience, NEWTEK has a team of experts dedicated to research, development, and customer support. The company's commitment to innovation and customization means that its PSA oxygen generators can be tailored to specific operational conditions, whether it's extreme temperatures, high humidity, or high - altitude environments. This adaptability has made NEWTEK a trusted partner for industries seeking reliable and efficient oxygen generation solutions.
The Role of Oxygen - Enriched Combustion in the Metallurgical Industry
In the metallurgical industry, combustion is a fundamental process for various operations. Traditional combustion processes rely on air, which consists mainly of nitrogen (about 78%) and a relatively small amount of oxygen (about 21%). Oxygen - enriched combustion, which involves increasing the oxygen concentration in the combustion air, has emerged as a significant advancement in the industry.
Oxygen - enriched combustion offers several advantages over traditional combustion methods. By increasing the oxygen content, the combustion process becomes more efficient. The higher oxygen concentration allows for more complete fuel combustion, which in turn leads to higher flame temperatures. This is beneficial in metallurgical processes as it can accelerate chemical reactions, improve the quality of the final product, and increase production rates.
In steelmaking, oxygen - enriched combustion can enhance the decarburization process. The increased oxygen supply helps to remove carbon from the molten iron more effectively, resulting in higher - quality steel. In non-ferrous metal refining, oxygen-enriched combustion can improve melting and refining efficiency and reduce the energy required to process the metal.
Oxygen - enriched combustion can have a positive impact on environmental performance. Since the combustion process is more complete, there is a reduction in the formation of harmful by unburned hydrocarbons and carbon monoxide.


How PSA Technology Facilitates Oxygen - Enriched Combustion in the Metallurgical Industry
On - Site Oxygen Generation
One of the key ways PSA technology contributes to oxygen - enriched combustion in the metallurgical industry is through on - site oxygen generation. Instead of relying on external suppliers for oxygen, metallurgical plants can use NEWTEK's PSA oxygen generators to produce oxygen on - site. This eliminates the need for transportation and storage of oxygen, which reduces costs and ensures a continuous and reliable supply of oxygen.
On - site generation allows for greater flexibility in adjusting the oxygen supply according to the specific needs of the metallurgical process. During peak production periods, the PSA generator can be adjusted to produce more oxygen, while during slower periods, the production can be scaled back, optimizing energy consumption.
Energy - Efficient Oxygen Production
PSA technology is inherently energy - efficient. Unlike other oxygen - generation methods, which requires extremely low temperatures and significant amounts of energy for refrigeration, PSA operates at ambient temperatures. This significantly reduces the energy required for oxygen production.
NEWTEK's PSA oxygen generators are designed with energy - saving components and optimized processes. The molecular sieves used in the generators are highly efficient in separating nitrogen from oxygen, minimizing the energy input required for the separation process. The automated control systems in the generators ensure that the oxygen production process is adjusted in real - time to match the actual oxygen demand of the metallurgical process, further reducing energy waste.
Tailored Oxygen Purity for Metallurgical Processes
The metallurgical industry has diverse requirements for oxygen purity. Steelmaking, non - ferrous metal refining, and foundry operations, may require different levels of oxygen purity. NEWTEK's PSA oxygen generators can be customized to produce oxygen with the specific purity levels needed for each application.
In some steelmaking processes, a purity level of 93%±3% may be sufficient, while in more specialized non - ferrous metal refining processes, a higher purity of 99% may be required. By being able to produce the exact oxygen purity required, the PSA technology avoids over - purifying the oxygen, which would consume additional energy. This tailored approach to oxygen production meets the technical requirements of the metallurgical processes and maximizes energy efficiency.
Energy saving effect
Reduced Fuel Consumption
The most significant energy - saving effect of PSA - enabled oxygen - enriched combustion in the metallurgical industry is the reduction in fuel consumption. As mentioned earlier, oxygen - enriched combustion allows for more complete fuel combustion. With a higher oxygen concentration in the combustion air, the fuel can be burned more efficiently, releasing more heat with less fuel.
In a blast furnace, by using oxygen - enriched air generated through PSA technology, the amount of coke (a common fuel in ironmaking) required can be reduced. This saves on the cost of fuel and reduces the energy required to produce and transport the fuel. The energy savings from reduced fuel consumption can be substantial, contributing to overall cost savings for the metallurgical plant.
Lower Energy for Oxygen Supply
Compared to traditional methods of purchasing liquid oxygen or using cryogenic oxygen generation plants, PSA technology requires significantly less energy for oxygen supply. As stated before, cryogenic distillation plants need a large amount of energy for refrigeration to separate oxygen from air. In contrast, PSA oxygen generators operate at ambient temperatures, eliminating the need for this energy - intensive refrigeration process.
The reduced energy requirement for oxygen supply means that the overall energy consumption of the metallurgical plant is decreased. This is especially important in an industry where energy costs are a major expense. By using PSA - generated oxygen, metallurgical plants can lower their energy bills and improve their competitiveness in the market.
Improved Furnace Efficiency
Oxygen - enriched combustion using PSA - generated oxygen can improve the efficiency of furnaces in the metallurgical industry. The higher flame temperatures achieved through oxygen - enrichment can increase the heat transfer rate in the furnace. This allows for faster heating of the metal being processed, reducing the time required for each production cycle.
In a glass - melting furnace, the use of oxygen - enriched combustion can lead to a more uniform and rapid melting of the raw materials. This increases the production rate and reduces the energy required to maintain the furnace at the required temperature for an extended period. The improved furnace efficiency translates into energy savings and higher productivity for the metallurgical plant.
Minimized Energy for Gas Treatment
As oxygen - enriched combustion reduces the volume of exhaust gases, there is a reduction in the energy required for gas treatment. The exhaust gases from traditional combustion processes contain a significant amount of nitrogen, which needs to be treated or disposed of. With oxygen - enriched combustion, the reduced nitrogen content in the exhaust gases means that less energy is spent on gas treatment processes.
This energy - saving aspect is often overlooked but can contribute to a significant overall reduction in the energy consumption of the metallurgical plant. By minimizing the energy for gas treatment, the plant can allocate more resources to other critical processes, further optimizing its energy usage.
Metallurgical industry applications
Steelmaking Plants
In many steelmaking plants around the world, the adoption of NEWTEK's PSA oxygen generators for oxygen - enriched combustion has led to significant energy savings. After installing NEWTEK's PSA oxygen generators and implementing oxygen - enriched combustion, the plant was able to reduce its fuel consumption by a significant percentage.
The on - site generation of oxygen through PSA technology ensured a stable and reliable oxygen supply, allowing for more consistent steel production. The ability to adjust the oxygen purity and production volume according to the steelmaking process's needs contributed to better energy management. The plant saved on energy costs and improved the quality of its steel products.
Non - Ferrous Metal Refineries
Non - ferrous metal refineries have benefited from PSA - enabled oxygen - enriched combustion. A copper refinery in South America was struggling with high energy consumption and low production efficiency. By using NEWTEK's PSA oxygen generators to introduce oxygen - enriched combustion in its refining process, the refinery was able to increase the melting rate of copper ore.
The higher oxygen concentration in the combustion air allowed for more efficient heat transfer, reducing the time and energy required to melt the ore. The ability to produce the specific oxygen purity required for the copper refining process optimized the energy usage. The refinery saw a notable reduction in its overall energy consumption and an increase in its production output, leading to improved economic performance.
