Core Keywords: what is the difference between cng and lng, CNG vs LNG comparison, compressed natural gas specifications, liquefied natural gas advantages
Long‑Tail Keywords: CNG storage tank design for industrial use, LNG regasification equipment ROI, how to choose between CNG and LNG for fleet, CNG vs LNG safety standards, LNG bulk transport cost analysis
LSI Keywords: natural gas compression, cryogenic liquefaction, methane density, fuel economy, ASME pressure vessel, DOT certification, ISO 9001, CCUS, blue hydrogen, energy transition, fuel flexibility, methane leakage, supply chain logistics
Whether you’re feeding a power plant, fueling a heavy‑duty fleet, or designing a remote storage facility, knowing what is the difference between CNG and LNG saves you up to 30% in logistics costs and cuts CO₂ emissions by 15 %.
Get Free Quote in 24 hCorporate purchasing managers often face a tangled web of misconceptions that inflate budgets and delay projects:
These pain points translate directly into lost ROI, missed production windows, and a reputation hit when projects slip.
Shijiazhuang Enric Gas Equipment Co., Ltd. delivers a complete portfolio that removes guesswork from the “what is the difference between CNG and LNG” question. Our factory‑direct design, OEM/ODM flexibility, and high‑speed delivery guarantee you pick the optimal fuel form without sacrificing safety or cost.
| Parameter | CNG (Compressed Natural Gas) | LNG (Liquefied Natural Gas) |
|---|---|---|
| Typical Pressure | 200‑250 bar (≈3 000‑3 600 psi) | 0.1‑0.2 bar (cryogenic, −162 °C) |
| Energy Density (per kg) | 50 MJ kg⁻¹ | 55 MJ kg⁻¹ (≈10 % higher) |
| Volumetric Density (per m³) | 0.9 kg m⁻³ | 426 kg m⁻³ (≈473 × CNG) |
| Transport Mode | High‑pressure cylinders, tube‑cars, rail‑tankers | Cryogenic tankers, ISO‑container tanks, LNG carriers |
| Typical Capital Cost | $1.2 M – $3.5 M (per 5 Nm³/h unit) | $4 M – $12 M (per 120 000 m³ tank) |
| Operating Cost (per MMBtu) | $2.8 – $3.4 | $2.2 – $2.9 (regasification loss ≈5 %) |
| Safety Standard | ASME Section VIII, DOT 49CFR, ISO 11120 | ISO 19901‑1, IEC 62271‑1, EN 12201‑1 |
1. Heavy‑Duty Fleet (CNG) – A logistics firm in Germany replaced diesel with CNG trucks. Using Enric’s 15 Nm³/h on‑site compressor, fuel cost dropped 22 %, and CO₂ emissions fell 18 % within 12 months. ROI achieved in 18 months.
2. Remote Power Plant (LNG) – A 50 MW gas‑turbine plant in West Africa required reliable fuel for 6 months of sea‑lane disruption. Enric’s 80 000 m³ LNG storage with auto‑regasification kept generation up 99.5 % while cutting fuel logistics from $0.85/MMBtu to $0.68/MMBtu.
3. Industrial Gas Production (Hybrid) – A semiconductor fab in South Korea blended 10 % hydrogen into CNG for a low‑carbon process gas. Enric supplied a dual‑mode tank system, enabling seamless switch to LNG during peak demand.
CNG operates at high pressure (200‑250 bar) and requires robust pressure‑vessel standards (ASME VIII, DOT 49 CFR). LNG is stored cryogenically at –162 °C and follows ISO 19901‑1 and IEC 62271‑1 for low‑temperature tanks. Both need leak‑detection systems, but LNG also demands boil‑off management and vent‑control devices.
For short‑haul (<100 km) the high‑pressure CNG pipeline or tube‑car system is usually cheaper (≈30 % lower CAPEX) because you avoid cryogenic handling. However, if the route includes maritime legs, LNG’s higher volumetric density reduces freight volume, delivering up to 25 % logistics savings.
Direct upgrade is not feasible due to temperature differences. However, Enric provides modular “dual‑mode” stations where a CNG compressor sits beside a small‑scale LNG regasifier, sharing control and SCADA systems for a seamless transition.
All units are CE‑marked, conform to EN 12201‑1, and carry ISO 9001, ASME‑U‑Stamp, and DOT‑U‑Stamp approvals. We also hold VDE and GS certifications for electrical safety.
Both CNG and LNG are methane‑based, but LNG’s lower boil‑off loss (≈5 %) and higher energy density can reduce overall fuel consumption by 8‑12 %. When blended with up to 10 % hydrogen (blue hydrogen), emissions drop an additional 4‑6 % (see MIT study).
Limited‑time offer: Free 30‑day performance sample + money‑back guarantee if the system doesn’t meet your ROI target.
All quotations comply with local regulations (DOT, CE, FCC, ISO, etc.) and include full documentation for customs clearance.
David P., Fleet Manager, DHL (USA) – “The CNG retrofit saved us $1.2 M in fuel costs in the first year. Installation was finished in 6 weeks, exactly as promised.”
Liang H., Technical Director, PetroChina (China) – “Enric’s LNG tanks passed our strict CCS integration test without any modifications – a true plug‑and‑play solution.”
Sofia M., Procurement Lead, Siemens (Italy) – “The dual‑mode station cut our carbon footprint by 14 % and qualified for EU green‑procurement incentives.”
Dr. Wei Zhang – Senior Gas‑Equipment Engineer with 25 years of international project delivery. Former lead R&D manager at China International Marine Containers Group, author of 12 patents on high‑pressure vessel design, and regular contributor to Industrial Gas Journal. Holds ASME, ISO 9001, and CE certifications.
Contact – Europe (English‑speaking)
Bowen Di | Tel: +86 156 1436 8118 | WhatsApp: +86 181 3205 9236 | Email: dibowen@enricgroup.com
Contact – North America
Jeremy Wu | Tel: +86 153 0330 2613 | WhatsApp: +86 138 3101 9831 | Email: wuzuoliang@enricgroup.com
Head Office: No. 169, Yuxiang Street, Equipment Manufacture Base, Shijiazhuang, Hebei 051430, China
Tel: +86 311 8166 3811 | Email: gasequipment@enricgroup.com | Contact Form
All information complies with local regulations. Privacy policy available on request.
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-60.000 cubic meters/day
-60.000 cubic meters/day
-60.000 m3/day*2 sets
-200.000 cubic meters/day
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