PSA Plant 95% O2 For Smelter

PSA (Pressure Swing Adsorption) equipment increases the combustion efficiency of fuel during the smelting process, thereby increasing the temperature of the smelting furnace. This enhanced combustion promotes faster and more complete oxidation of impurities in the ore. With the ability of PSA equipment to produce 95% pure oxygen, smelters can optimize their production. PSA technology works by adsorbing nitrogen and other impurities in compressed air on specific adsorbents under pressure and then releasing them under reduced pressure, providing a continuous flow of high-purity oxygen to the smelter.

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Description

Technical Parameters

How does PSA technology produce high purity oxygen?

The PSA process is rooted in the principle of selective adsorption. Atmospheric air, which consists of approximately 21% oxygen, 78% nitrogen, and trace amounts of other gases, is first compressed. This compressed air then passes through a vessel filled with a special adsorbent, typically zeolite molecular sieves. These sieves have an affinity for nitrogen, adsorbing it preferentially while allowing oxygen to pass through. As the nitrogen - laden adsorbent reaches saturation, the process switches to a second identical vessel, ensuring a continuous supply of oxygen. The adsorbed nitrogen is then desorbed, usually by reducing the pressure, and the adsorbent is regenerated for the next cycle. This cyclic operation allows the PSA plant to produce oxygen with a purity of up to 95%, with the remaining portion being mainly inert gases like argon and trace nitrogen.

PSA Oxygen Generators

Benefits of PSA Oxygen Generators for Smelters

Enhance combustion efficiency

Oxygen is crucial for smelting combustion. PSA plant's 95% pure oxygen boosts smelting furnace fuel efficiency. In traditional air - fuel setups, nitrogen dilutes and lowers combustion temp; high - purity oxygen raises flame temp. In copper smelting, it speeds up copper sulfide ore oxidation to copper oxide, improves copper quality, cuts fuel use, and saves costs.

Improve productivity

Using 95% O₂ from PSA plant directly boosts smelter productivity. In aluminum's Hall - Heroult process, high - purity oxygen quickens reaction with carbon anodes, raises aluminum output. It also shortens ore processing time, enhancing overall efficiency.

Environmental advantages

PSA plants are vital in environmental protection. High - purity oxygen makes combustion more efficient, curbing harmful pollutant emissions. In lead smelting, it cuts sulfur dioxide release, reduces unburned fuel and by - products. On - site oxygen production eliminates liquid oxygen transport, slashing carbon footprint.

Cost - effectiveness

PSA plants offer cost - effectiveness. Despite initial capital for plant building, long - term they're cheaper than external high - purity oxygen purchase. Liquid oxygen has product, transport, and storage costs, while PSA plants have low - op costs, consume less electricity, and can be scaled to optimize costs.

Application of PSA oxygen generator 95% oxygen in smelting industry

01.

Metal Smelting

Smelting of non-ferrous metals such as copper, lead, zinc, and nickel:
In smelting processes such as blast furnaces, flash smelting furnaces, and electric arc furnaces (EAF), oxygen is used to increase the temperature in the furnace, accelerate metal smelting, improve production efficiency, and reduce fuel consumption.

02.

Oxygen Enrichment & Combustion

In the smelting process, using 95% oxygen can replace part of the air, increase the combustion temperature, and reduce the nitrogen content in the flue gas, thereby reducing energy consumption and improving fuel utilization.
Typical applications: blast furnace oxygen injection, fuel injection system, rotary kiln, etc.

03.

Oxidation Processes

In some smelting processes, oxygen is required to participate in the oxidation reaction. For example:
Converting in copper smelting: use oxygen to oxidize copper sulfide (Cu₂S) into copper (Cu).

Lead smelting: oxidize lead sulfide (PbS) to generate lead oxide (PbO).

Nickel smelting: oxygen is used to remove impurities and improve the purity of nickel.

04.

Off-Gas Treatment

Smoke containing SO₂ is generated during the smelting process. The use of oxygen-enriched combustion can increase the SO₂ concentration, which is convenient for subsequent recovery and production of sulfuric acid (H₂SO₄), realizing comprehensive resource utilization and reducing environmental pollution.

NEWTKE-NTK95 Series
No.	Models	Capacity (Nm3/hr)	Purity	Power consumption of 1Nm3 oxygen produced (kw/h)	Number of bottles flled in 12 hours(pcs)	Operator needed
1	NTK95-5P	5	95%+-1%	3.54	10	2
2	NTK95-10P	10	95%+-1%	2.52	20	2
3	NTK95-15P	15	95%+-1%	2.31	30	2
4	NTK95-20P	20	95%+-1%	2.13	40	2
5	NTK95-25P	25	95%+-1%	2.01	50	2
6	NTK95-30P	30	95%+-1%	2.09	60	2
7	NTK95-40P	40	95%+-1%	1.81	80	2
8	NTK95-50P	50	95%+-1%	1.94	100	2
9	NTK95-60P	60	95%+-1%	1.62	120	2
10	NTK95-80P	80	95%+-1%	1.92	160	2
11	NTK95-100P	100	95%+-1%	1.83	200	2

FAQ

1. What is the oxygen production capacity of this PSA oxygen generator? Can it meet the large-scale oxygen demand of our smelter?
Our PSA oxygen generators are available in various models, and the oxygen production capacity can be flexibly adjusted according to the actual oxygen demand of your smelter. From small smelting operations to large industrial smelters, there are suitable equipment. You can tell us your specific oxygen demand, such as the amount of oxygen required per hour or day, and we will accurately recommend the right model for you to ensure that it can fully meet the large-scale oxygen demand of smelting production.

2. How stable is the 95% pure oxygen produced by the equipment? Will the purity decrease during long-term continuous operation?
The equipment uses advanced pressure swing adsorption (PSA) technology and high-quality molecular sieve materials to ensure that the 95% pure oxygen produced is extremely stable. The design fully considers the needs of long-term continuous operation. Through the intelligent control system, real-time monitoring and regulation of various parameters, even in the case of long-term continuous operation, it can ensure that the oxygen purity is always maintained at around 95%, with minimal fluctuations, and will not cause any impact on your smelting process.

3. Is the maintenance of the equipment complicated? What aspects should be paid attention to in daily maintenance? Is the maintenance cost high?
The maintenance of the equipment is not complicated. Daily maintenance mainly includes regular inspection of the operating parameters of the equipment such as pressure and temperature, checking whether the molecular sieve is blocked, and inspecting and replacing some vulnerable parts. We will provide you with detailed maintenance manuals and operating guides, and we also have a professional after-sales team to provide you with remote guidance or door-to-door service at any time. The maintenance cost of the equipment is relatively low. Due to its advanced energy-saving technology and durable parts, the consumables replacement cycle is long, which can effectively reduce your operating costs.

4. After purchasing the equipment, can you provide installation and commissioning services? How long does installation and commissioning take?
We provide one-stop installation and commissioning services. After the equipment is delivered, we will immediately arrange professional technicians to go to your smelter for installation and commissioning. The installation and commissioning time will vary depending on the equipment model and on-site installation conditions. Generally, the installation and commissioning of small equipment may be completed within 1-2 days, and large and complex equipment may take 3-5 days. Our technicians will ensure that the equipment is firmly installed and connected correctly, and conduct comprehensive tests on various performances to ensure that the equipment is put into use in the best condition.

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