RICH has advanced food storage and liquid nitrogen preservation technology. Our equipment covers the main domestic granaries, effectively inhibiting the survival of pests and diseases. Our blanketing technology has been widely used in the beer and food packaging. The introduction of nitrogenous sealing technology has greatly extended the product preservation cycle, and relieved the user's worries caused by unsalable products.
Ensure food safety, shelf life, and processing efficiency with RICH on-site gas systems. Since 1979, RICH has specialized in air separation and gas purification, delivering 4,000+ systems worldwide. We provide nitrogen, oxygen, hydrogen polishing, and drying solutions tailored to the food & beverage (F&B) industry, addressing critical challenges like contamination, oxidation, moisture, and process interruptions.
Product spoilage & oxidation: Air exposure can degrade flavor, color, and nutrients.
Packaging inefficiency: Modified atmosphere packaging (MAP) requires precise nitrogen or oxygen control.
Moisture & humidity: Humidity-sensitive products and powders need dry, clean gas to maintain quality.
Regulatory compliance: Food-grade gases must meet stringent safety and purity standards.
Logistics & cylinder dependency: Bulk cylinder supply is costly, labor-intensive, and inconsistent.
Process continuity: Stop production losses due to interrupted gas supply.
Modified Atmosphere Packaging (MAP): fresh produce, meat, dairy, snacks, beverages
Tank blanketing & storage inerting: liquid food, oils, wine, beer
Ingredient purging: removing oxygen from silos, hoppers, pipelines, or reaction vessels
Beverage carbonation & nitrogenation: soft drinks, beer, sparkling water
Drying & moisture control: powders, powders for instant foods, flavorings, milk powder
Process oxygen or hydrogen: fermentation control, enzymatic reactions (if applicable)
PNF / PNF+ PSA Nitrogen Generators — reliable nitrogen for MAP, tank inerting, ingredient purging.
Membrane Nitrogen Generators — compact, low-maintenance solution for moderate-purity nitrogen applications.
POF Series PSA Oxygen / VPSA Oxygen Plants — oxygen enrichment for fermentation or controlled oxidation.
Desiccant Dryers / Drying Systems — moisture control for powders, powders, and sensitive ingredients.
PSA Hydrogen Separation / Polishing Units — optional for specialized food reactions (e.g., hydrogenation of edible oils).
All RICH systems can be designed with food-grade materials and clean-air filtration to meet HACCP, ISO 22000 or similar standards.
Purity stability: RL-VI process (where applicable) ensures consistent nitrogen or oxygen purity, protecting flavors, nutrients, and shelf life.
Clean, food-safe design: stainless steel contact points, sanitary fittings, optional oxygen sensors.
Energy & operational efficiency: reduced compressed-air consumption and low maintenance extend uptime and reduce OPEX.
Moisture control: integrated desiccant drying ensures dew points suitable for powders and moisture-sensitive products.
Process continuity: load-adaptation and purity anti-vibration control prevent production interruptions.
1. MAP for fresh produce or snacks
Problem: Oxygen exposure reduces shelf life.
Solution: On-site PNF+ PSA nitrogen generator paired with buffer vessel.
Benefit: Longer shelf life, consistent quality, lower logistics costs.
2. Beverage tank blanketing & nitrogenation
Problem: Inconsistent carbonation or flavor loss due to oxygen ingress.
Solution: Membrane nitrogen or PNF PSA system with controlled flow.
Benefit: Stable carbonation, reduced oxidation, consistent flavor profile.
3. Powder handling & ingredient purging
Problem: Moisture and oxygen degrade powders.
Solution: PSA nitrogen + desiccant dryer.
Benefit: Dry, inert atmosphere for silo, hopper, or pipeline — extended product quality and easier handling.
4. Fermentation / controlled oxidation
Problem: Inconsistent gas supply impacts microbial activity.
Solution: POF/VPSA oxygen with automated flow control.
Benefit: Stable oxygen feed improves process repeatability and product consistency.
Application type (MAP, tank blanketing, purging, drying, fermentation, etc.)
Required flow (Nm³/h or scfm)
Required purity / dew point (% N₂, % O₂, H₂ ppm, dew point °C)
Delivery pressure (bar/psi)
Duty cycle (continuous, batch, seasonal)
Ambient conditions (temperature range, humidity)
Installation constraints (indoor/outdoor, footprint)
Food-grade and regulatory requirements (HACCP, ISO 22000, FDA, EU)
Control & monitoring integration (PLC, DCS, HMI)
Application | Flow (Nm³/h) | Purity | Pressure | RICH solution |
---|---|---|---|---|
MAP — fresh produce | 20–200 | 95–99% N₂ | 1–6 bar | PNF / PNF+ PSA + buffer vessel |
Tank blanketing — wine/oil | 50–500 | 95–99% N₂ | 1–6 bar | PNF PSA / Membrane |
Beverage nitrogenation | 10–200 | 95–98% N₂ | 2–6 bar | Membrane / PNF PSA |
Powder purging & drying | 5–100 | 95–99% N₂ | 0.5–6 bar | PSA + desiccant dryer |
Oxygen enrichment (fermentation) | 20–100 | 90–95% O₂ | 1–4 bar | POF / VPSA oxygen plant |
Food-grade materials & stainless steel contact parts
Optional HACCP / ISO 22000 / FDA compliance
FAT/SAT verification for flow, purity and dew point
Full documentation: P&ID, GA drawings, operation & maintenance manuals
Eliminate cylinder delivery and handling costs
Improve shelf life, reduce spoilage
Stable gas purity prevents product quality loss
Energy savings via RL-VI efficiency (if high-purity N₂ required)
Lower maintenance costs via durable valves, cylinders, and tower internals
Q: Can nitrogen purity be guaranteed for MAP?
A: Yes. PSA and membrane systems are designed for consistent purity; verified via FAT/SAT.
Q: Are your systems food-grade and sanitary?
A: Yes — stainless steel contact points, sanitary fittings, and optional clean-air filtration meet F&B standards.
Q: Can I integrate gas flow with production line controls?
A: Yes — PLC/DCS integration, HMI monitoring, and automated control available.
Q: Do you control moisture for powders?
A: Yes — desiccant drying ensures low dew points for powder storage and handling.
Request a free technical assessment: Share your flow, purity, and application.
Request a site survey & quote: Tailored system with CAPEX/OPEX and payback analysis.
Download technical datasheets / FAT reports (gated).
Schedule a factory visit / demo: See PSA, membrane, and dryer solutions in operation.