On-site nitrogen, oxygen and hydrogen gas generation plants
Eldtek Engineering Pvt. Ltd. is an engineering company. It designs and fabricates on-site nitrogen and oxygen generation plants (PSA, VPSA and membrane). It also supplies hydrogen systems (AEM and PEM electrolyzers and ammonia crackers), membrane CO₂ capture systems and battery energy storage.
Nitrogen gas plants
PSA and membrane nitrogen generators for inerting, packaging, heat treatment and electronics.
Up to 99.999% N₂Explore →Oxygen gas plants
PSA and VPSA oxygen plants for steel, glass, pulp and paper and waste-water treatment.
Up to 95% O₂Explore →Hydrogen gas plants
AEM and PEM electrolyzers, complete turnkey systems and ammonia crackers.
10 – 1,000+ Nm³/hExplore →CO₂ capture systems
Membrane CO₂ capture for industrial flue gas, with no solvents and a retrofit-ready design.
Up to ~90% captureExplore →Battery energy storage
From 12 V and 24 V modules to home, industrial and grid-scale systems, each with a BMS.
12 V to MWhExplore →Gas Generation Solutions
On-site nitrogen, oxygen and specialised gas production — engineered for reliability, efficiency and zero dependence on third-party supply chains.
Gas
Generation
Hydrogen Solutions
End-to-end hydrogen production systems — from advanced electrolysers and full Balance-of-Plant integration to ammonia cracking for ultra-pure hydrogen supply.
Carbon Capture Solutions
Membrane-based CO2 separation systems engineered for industrial decarbonisation — high capture efficiency, low energy, no solvents, no rotating parts.
Battery Solutions
Advanced energy storage systems engineered for grid, residential and industrial applications — high density, long cycle life and intelligent battery management.
Battery
Solutions
Gas generation plants at a glance
| Gas | Technology | Purity | Flow range | Typical use |
|---|---|---|---|---|
| Nitrogen | Twin-tower PSA | Up to 99.999% | 5 – 5,000 Nm³/h | Inert blanketing, food packaging, heat treatment, electronics |
| Nitrogen | Modular PSA | On request | 10 – 50 Nm³/h | SMEs, pilot plants, fast commissioning |
| Nitrogen | Membrane | Up to 99.5% | On request | Offshore, remote and marine sites |
| Oxygen | Twin-tower PSA | Up to 95% | 5 – 500 Nm³/h | Continuous on-site oxygen supply |
| Oxygen | VPSA | 90 – 94% | 500 – 2,000 Nm³/h | Steel mills, glass furnaces, waste-water treatment, pulp and paper |
| Hydrogen | AEM / PEM electrolysis system | 99.999% | 10 – 1,000+ Nm³/h | Fuel cells and industrial processes |
| Hydrogen | Ammonia cracker with PSA | Above 99.9% | On request | Industrial users, refuelling stations, remote sites |
Frequently asked questions
What does Eldtek Engineering do?
Eldtek designs and fabricates on-site nitrogen and oxygen generation plants (PSA, VPSA and membrane). It also supplies hydrogen systems (AEM and PEM electrolyzers, ammonia crackers), membrane CO₂ capture systems and battery energy storage.
Does Eldtek make nitrogen and oxygen gas plants?
Yes. Nitrogen purity reaches up to 99.999% with twin-tower PSA across 5 to 5,000 Nm³/h, and membrane units reach up to 99.5%. Oxygen is supplied at up to 95% with PSA and at 90–94% with VPSA for flows from 500 to 2,000 Nm³/h.
What is the difference between PSA and VPSA?
Both use adsorbent beds to separate gases from air. VPSA regenerates the beds under vacuum, which cuts energy use and suits large-scale oxygen production.
Does Eldtek build hydrogen gas plants?
Yes. Eldtek supplies AEM and PEM electrolyzers and complete turnkey hydrogen systems from 10 to over 1,000 Nm³/h at 99.999% purity, plus ammonia crackers that produce hydrogen above 99.9% purity.
Where is Eldtek located and how can I contact the company?
Eldtek Engineering Pvt. Ltd. is headquartered at 76, First Floor, Karayan Street Walk, Sector 2, Wave City, Ghaziabad, India. Email projects@eldtek.com. Working hours are Monday to Saturday, 9:00 to 20:00 IST, and the team aims to respond within 24 hours.
What information do I need for a quotation?
The application, the required capacity (for example in Nm³/h), the required purity and any site constraints. You can send these through the contact form.
Which industries does Eldtek serve?
Oil and gas, petrochemical, steel and metallurgy, environmental, medical and healthcare, and hydrogen energy.
What battery storage does Eldtek offer?
Eldtek supplies battery energy storage from 12 V and 24 V modules to wall-mounted home batteries of 5–30 kWh, industrial cabinets and grid-scale systems, each with a battery management system.
Does Eldtek offer carbon capture?
Yes. Eldtek designs membrane-based CO₂ capture systems for industrial flue gas, with no solvents, a modular retrofit-ready design and capture rates of up to about 90%.
Industrial decarbonisation, made real.
We build technologies that let industry run cleaner, smarter and more self-reliantly, without compromising performance or economics.
Dr. Adit Gupta
Dr. Gupta directs Eldtek's technology and strategy. He holds a PhD in Materials Science and Engineering from Nanyang Technological University, where his research focused on batteries, a master's degree from the National University of Singapore and a B.Tech from IIT Delhi. His work includes peer-reviewed publications and patented technology.
30+ years in industry
Eldtek's board brings together leaders with more than 30 years of industry experience. They have served leading companies in oil and gas, pharmaceuticals, and food and beverage, and have delivered 100+ projects across the MENA and APAC regions.
Work on problems that matter.
We're looking for engineers, scientists and builders who want to spend their careers on the hardest problems in energy. If you're drawn to work at the intersection of deep science and industrial engineering, we want to hear from you.
Express InterestLet's build something important.
Sector 2, Wave City, Ghaziabad