On-site H2 systems for factory process use: heat treatment, hydrogenation, glass, chemicals, pharma, generator cooling, labs, and high-purity applications. Gastek engineers, packages, commissions, and supports hydrogen generation systems around the actual use point.
Sizing Snapshot
Industrial H2 System
Purity
Based on technology, drying, and polishing package
Up to 99.999%
Pressure
Higher use-point pressure can be reviewed with compression
Up to 30 bar
Operation
PLC-controlled systems for process-critical H2 demand
Automatic
Common uses: Heat treatment·Hydrogenation·Generator cooling
Factory process hydrogen, not green-hydrogen hype
PEM or alkaline route selected from duty
Sizing around flow, purity, pressure, and safety
Engineered, packaged, commissioned, and supported
Selected Gastek industrial clients across gas generation applications
Supplier experience across demanding factory and process environments in India and export markets.
Steel
Natural gas
Pharma
Steel
Energy
Polymers
Steel and energy
Petrochemicals
Why Gastek in hydrogen
Industrial hydrogen buyers need controls, utilities, safety, commissioning, and service discipline. That is where Gastek's nitrogen, HNX, ammonia cracking, and process-gas background becomes relevant.
Gastek's strength is industrial gas generation: utilities, controls, commissioning, service, and long-term plant support.
Hydrogen interest is coming from process plants that already understand the value of on-site gas generation.
HNX protective gas, ammonia cracking, and hydrogen purification knowledge support a more mature H2 discussion.
The buying decision is not just the electrolyser stack. It is package engineering, safety, utilities, startup, and support.
PEM vs alkaline decision guide
Both routes produce hydrogen from water and electricity. The right choice depends on demand pattern, purity, pressure, footprint, utilities, commercial duty, and the safety/storage philosophy.
A working H2 plant includes water treatment, power package, stack, gas conditioning, controls, safety instrumentation, commissioning, and after-sales support.
Decision basis
Demand pattern
PEM
Fast response for variable or intermittent H2 demand
Alkaline
Steady production for continuous industrial loads
Ask first
Is your process batch-based, intermittent, or 24/7 continuous?
Decision basis
Purity requirement
PEM
Strong fit for compact high-purity applications
Alkaline
Can support industrial purity targets with gas conditioning
Ask first
What purity, dew point, and impurity limits are required at the use point?
Decision basis
Pressure and storage
PEM
Often paired with compact buffer and high-purity make-up use
Alkaline
Reviewed with receiver, compression, and process supply philosophy
Ask first
Do you need direct supply, buffer storage, or higher-pressure delivery?
Decision basis
Plant integration
PEM
Useful where footprint and clean operation are priorities
Alkaline
Useful where economics, duty cycle, and plant utilities drive selection
Ask first
What power, DI water, ventilation, and installation area are available?
Decision basis
Safety philosophy
PEM
Leak detection, purge logic, ventilation, and ESD still need design
Alkaline
Same safety discussion, often with larger system and storage decisions
Ask first
How will H2 detection, venting, ESD, and operator training be handled?
Compact high-purity route
PEM electrolysis uses a solid polymer membrane and deionized water to generate high-purity hydrogen with fast response and compact plant layout.
Best when gas quality, space, response time, and clean operation matter more than lowest cost at very large continuous load.
Industrial continuous-duty route
Alkaline water electrolysis is a proven industrial route for steady hydrogen production where demand is continuous and plant economics matter.
Best when the process has a stable hydrogen load and the plant can be engineered around industrial utilities and operating discipline.
Technical specification
Industrial hydrogen generation depends on the full package: electrolysis stack, power supply, water quality, gas-liquid separation, drying, purification, compression, controls, safety systems, and commissioning. Gastek reviews the total duty before recommending the plant configuration.
Package architecture
The right proposal should be sized from use-point data, not from a generic electrolyser catalogue.
DI water quality and feed monitoring
Rectifier, stack load, and electrical protection
PEM or alkaline generation route
Separation, drying, purification, and filtration
Outlet pressure, storage philosophy, and use-point supply
PLC, alarms, ESD, purge logic, and interlocks
Electrolysis can support low-carbon hydrogen when powered by renewable electricity, but this page is focused first on reliable industrial hydrogen supply for factories and process plants.
Hydrogen requirements change by process. A heat treatment furnace, edible oil reactor, glass line, generator cooling system, and lab instrument all need different flow, purity, pressure, dew point, safety, and operating assumptions.
What hydrogen solves
Create reducing atmospheres for metal processing, annealing, brazing, and sintering.
Supply hydrogen for hydrogenation, API synthesis, edible oils, and chemical processes.
Maintain protective atmospheres for glass, metallurgy, electronics, and process equipment.
Improve supply control where cylinders, tube trailers, or merchant gas create risk.
Reducing and protective atmospheres
Hydrogen for annealing, brazing, sintering, bright heat treatment, metal powder processing, and controlled furnace atmospheres.
Likely fit
Alkaline for steady loads; PEM for smaller high-purity demand
Sizing basis
Furnace volume, H2 flow, H2/N2 mix, dew point, pressure, operating hours
Food and process hydrogenation
On-site hydrogen for edible oil hydrogenation and fat hardening where batch reliability, purity, and supply control matter.
Likely fit
Alkaline for regular production; PEM for smaller or specialty use
Sizing basis
Batch size, hydrogen consumption, pressure, purity, food-grade requirements
Hydrogenation and synthesis
Hydrogen for chemical hydrogenation, specialty chemicals, API synthesis, catalyst reactions, and controlled process gas use.
Likely fit
Technology depends on batch profile, pressure, and purity
Sizing basis
Reaction load, peak flow, purity, pressure, duty cycle, safety philosophy
Float glass and specialty glass
Hydrogen for protective atmospheres in float glass, solar glass, optical glass, and heat-treatment environments.
Likely fit
Alkaline for continuous glass lines
Sizing basis
Line demand, H2/N2 composition, pressure, dew point, continuous duty
Power plants and rotating equipment
High-purity hydrogen supply for generator cooling, backup requirements, power assets, and industrial energy systems.
Likely fit
PEM is often a strong fit for high-purity make-up hydrogen
Sizing basis
Make-up rate, purity, pressure, backup storage, safety and monitoring needs
High-purity and test environments
Hydrogen for analytical instruments, fuel-cell research, electronics manufacturing, semiconductor processes, and R&D facilities.
Likely fit
PEM for compact, high-purity, variable demand
Sizing basis
Instrument count, peak flow, purity, pressure, ramp rate, uptime requirement
Hydrogen safety
Hydrogen is not handled like nitrogen. The design discussion must include leak detection, ventilation, interlocks, purge logic, safe venting, pressure relief, storage philosophy, and operator training.
Gastek has worked in on-site gas generation since 1993. That background matters when hydrogen must integrate with plant utilities, process equipment, controls, commissioning, and after-sales support.
Required H2 flow rate
Purity or impurity target
Outlet pressure
Application and industry
Operating hours or duty cycle
Current H2 supply method
Power and DI water availability
Storage or no-storage preference
Safety constraints and installation city
These inputs help the team recommend PEM or alkaline electrolysis with a clearer technical basis.
PEM hydrogen generators are usually selected for compact, high-purity, responsive applications. Alkaline hydrogen generators are often reviewed for steady industrial demand where duty cycle, project economics, and plant integration matter. The right route depends on flow, purity, pressure, operating pattern, utilities, footprint, and safety philosophy.
It can be a strong option when hydrogen demand is regular, logistics are difficult, purity needs are repeatable, or supply continuity is important. Final selection should compare flow, pressure, operating hours, storage needs, electricity and water availability, safety requirements, and delivered-gas cost.
Hydrogen purity can reach up to 99.999% depending on the electrolysis route, drying, purification, gas conditioning, and application requirement. The practical target should be specified from the process use point rather than from a generic catalogue value.
Project basis can be reviewed up to 30 bar, with higher use-point pressure considered through compression and storage design where suitable. Pressure selection should include process demand, receiver sizing, safety, and downstream regulation.
Common industrial uses include heat treatment and metallurgy, edible oil hydrogenation, chemical and pharma hydrogenation, glass manufacturing, generator cooling, laboratories, electronics, fuel-cell testing, and other high-purity hydrogen applications.
Typical safety discussions include H2 leak detection, ventilation, emergency shutdown logic, purge sequences, pressure relief, safe venting, electrical classification review where applicable, storage philosophy, commissioning checks, and operator training.
This page is focused on industrial hydrogen for factory and process use. Electrolysis can support low-carbon hydrogen when powered by suitable electricity, but the immediate buying decision here is reliable industrial H2 supply for process applications.
Next step
Tell us the application, flow, purity, pressure, operating hours, site utilities, and installation location. Gastek can review whether PEM or alkaline water electrolysis is the right starting point for your process.
Flow, purity, pressure, and duty are reviewed before plant selection.
PLC controls, alarms, and interlocks are planned around project needs.
Installation, operator training, and handover support can be coordinated.
