The nitrogen generator for petroleum & natural gas is mainly used in protection, transportation, covering, pipeline replacement, rescue, maintenance, nitrogen injection, oil recovery, dilution nitrogen content, etc.
Keep your tanks, pipelines and processing units safe and productive with on-site, engineered gas solutions from RICH. Since 1979, RICH has focused on R&D, manufacturing and delivery of gas production systems and is a leader in room-temperature air separation in China. With 40+ years’ experience and 4,000+ systems installed worldwide, we design rugged, field-ready systems that solve the real problems oil & gas teams face: supply interruptions, purity instability, maintenance overhead and harsh site conditions.
Stop relying on cylinder deliveries — get gas on demand, 24/7.
Protect catalysts, instruments and product quality with steady, verified gas purity.
Run safer in hazardous zones with explosion-rated designs and integrated safety logic.
Cut energy and operating costs through patented process efficiency and smart controls.
Tank & vessel inerting / preservation (terminals, FPSO, tank farms)
Pipeline hydrostatic and pneumatic testing, commissioning and leak detection
Process purging for startups/shutdowns and maintenance blowdowns
Catalyst protection and feedstock conditioning for hydrotreating/hydrocracking
Hydrogen polishing and recycle in refining units
Instrument and analyzer purge/blanketing gas
Tail-gas & VOC treatment via carbon combustion purifiers
Custom On-site PSA Nitrogen Systems (including RL-VI engineered options) — for medium → high purity needs and bulk inerting.
PNF Series & PNF+ Series PSA Nitrogen Generators — standard and enhanced availability models.
Horizontal Nitrogen Skids — compact footprint for tight sites.
Membrane Nitrogen Generators — low-maintenance, mobile or temporary solutions for moderate purity.
POF Series PSA Oxygen / VPSA Oxygen Plants — where process oxygen is required.
PSA Hydrogen Separation & Purification Units — hydrogen polishing and recycle.
Carbon Combustion Purifiers — tail gas oxidation and VOC control.
Desiccant Dryers / Drying Systems — moisture control for instruments and sensitive processes.
We only list technologies that are applicable to oil & gas and explain what they do for you:
RL-VI process (Patent No. 99101651.3)
Improves nitrogen purity continuity through the adsorption bed and reduces feed-air consumption. Engineered RL-VI systems can be designed to achieve very high purities (up to 99.9995% N₂ in optimized, FAT-verifiable configurations). Customer benefit: better catalyst protection, lower compressor energy per Nm³.
Patented pneumatic pipeline valve (Patent No. 89213676.6)
One-piece piston/plug actuator for ultra-fast actuation (0.3–0.5 s), low pressure loss and long sealing life (design cycles up to 2,000,000). Customer benefit: reliable switching, minimal pressure drop and long maintenance intervals.
Self-compressing cylinder (Patent No. 200810200406.9)
Keeps molecular sieve beds under constant compression, provides settling display and sinking alarms. Customer benefit: reduced sieve degradation and more predictable maintenance cycles.
Optimized adsorption tower internals (Patent No. 200920351597.9)
Internal flow control reduces dead zones and sieve attrition. Customer benefit: higher sieve utilization, fewer replacements, lower energy use.
Load-adaptation & purity anti-vibration control (Patent No. ZL202122618572.4)
Adaptive metering and control keep product purity stable when feed temperature or adsorbent performance drifts. Customer benefit: fewer purity excursions, reduced wasted runs and lower energy waste.
Note: purity claims (e.g., 99.9995%) are site- and design-dependent and shown with qualifying language — final performance is confirmed during FAT/SAT.
Stability: RL-VI + anti-vibration control means steady purity even under changing ambient or process loads — crucial for catalysts and process quality.
Energy & cost savings: better sieve utilization and reduced air consumption lower OPEX.
Reliability in the field: rugged valves, self-compressing cylinders and skid packaging improve uptime and cut maintenance.
Safety & compliance: explosion-proof electrical packages and integrated interlocks for hazardous areas.
To provide a tailored proposal, please tell us:
Application (inerting / testing / hydrogen polishing / VOC treatment)
Required flow — peak and continuous (Nm³/h or scfm)
Required purity (% N₂, % H₂ or O₂ spec)
Delivery pressure (bar/psi) and whether boosters/compressors are available
Duty cycle (continuous 24/7, intermittent, seasonal)
Ambient conditions (temperature range, altitude, corrosive atmosphere)
Installation constraints (indoor/outdoor, footprint, access)
Safety & certification needs (ATEX/IECEx, NACE, vessel codes)
Control integration (DCS/PLC requirements)
Any existing P&ID or utility limitations (power, instrument air)
| Application | Flow (Nm³/h) | Typical purity | Delivery pressure | RICH solution |
|---|---|---|---|---|
| Small tank inerting | 50–200 | 95–99% N₂ | 1–6 bar | PNF or Membrane + buffer vessel |
| Pipeline testing | 500–2,000 | 95–99.9% | 10–25 bar | Custom PSA + booster compressor |
| Continuous blanketing | 200–1,000 | 99–99.9% | 1–10 bar | PNF+ with redundancy |
| High-purity feed protection | 50–500 | up to 99.999% (engineered) | 1–10 bar | RL-VI engineered PSA |
| H₂ polishing | 100–1,000 | 99.9%+ H₂ | Process dependent | PSA H₂ separation |
| Tail gas treatment | — | N/A | N/A | Carbon combustion purifier |
Hazardous-area and explosion-proof packages available (ATEX/IECEx where required).
FAT (Factory Acceptance Test) and SAT (Site Acceptance Test) with performance verification.
Full documentation: P&ID, plant layout, lift plans, maintenance manuals, spare parts lists.
Third-party inspection and test reports available on request.
Eliminate cylinder rental, transport and handling costs.
Reduce unplanned downtime from gas shortages.
Energy savings from RL-VI and load-adaptation control reduces compressor consumption per Nm³.
Lower sieve replacement frequency and reduced maintenance labor.
(We can prepare a project-specific CAPEX/OPEX and payback analysis if you share your current usage and costs.)
Q: Can you reach 99.9995% N₂?
A: RL-VI engineered systems are capable of very high purities; achievable level depends on feed conditions and system configuration — all high-purity claims are validated by FAT/SAT.
Q: Are your systems suitable for hazardous zones?
A: Yes. We offer hazardous-area builds and explosion-proof electrical packages per customer safety requirements.
Q: How long to deliver and commission?
A: Typical standard skids: 6–12 weeks. Custom, high-purity or certified builds require longer engineering time — exact lead time provided in proposal.
Q: Do you provide remote monitoring?
A: Yes — PLC/HMI, DCS integration and cloud telemetry options are available for remote status and predictive maintenance.
Request a free technical assessment: Provide application, target flow & purity, and site location.
Request a site survey & quotation: We’ll prepare an engineered proposal with CAPEX/OPEX and payback.
Request FAT data or technical datasheets: Patent summaries and FAT reports available on request.
Schedule a factory visit / demo: See our testing and assembly processes.
