120Nm³/h 94% Purity VPSA Oxygen Generator for Coal Chemical Industry
The coal chemical industry, involving processes such as coal gasification, methanol synthesis, and coal-to-olefins, requires stable, high-volume oxygen supply to ensure reaction efficiency, reduce energy consumption, and control pollutant emissions. The VPSA oxygen generator (Vacuum Pressure Swing Adsorption Oxygen Generator) is a high-performance variant of pressure swing adsorption oxygen plants. Operating on PSA technology for oxygen generation, it utilizes high-efficiency molecular sieves to physically separate oxygen from ambient air, delivering 94% pure oxygen without chemical reagents.
As a typical PSA based oxygen plant, it integrates the core advantages of PSA technology while optimizing regeneration efficiency via vacuum systems. Compared with traditional cryogenic oxygen production, it features faster start-up, more flexible load adjustment, and lower energy consumption. Compared with conventional PSA oxygen generators, it offers larger output and stronger adaptability to the high-dust, high-corrosion working conditions of coal chemical plants.
This 120Nm³/h model, customized for coal chemical processes, ensures continuous operation, corrosion resistance, and explosion protection, making it core supporting equipment for medium-scale coal chemical enterprises (annual output of 500,000-1 million tons of methanol).
Core Parameters
| Model |
Oxygen Storage Tank |
External Dimensions (m) |
Total Weight |
Power (KW) |
| PSA-1 | OG20 | 6.1×1.5×2.4 | 1600 | 5.5 |
| PSA-2 | OG20 | 6.1×1.5×2.4 | 1800 | 5.5 |
| PSA-3 | OG20 | 6.2×1.5×2.4 | 2100 | 5.5 |
| PSA-4 | OG30 | 6.3×1.7×2.6 | 2300 | 7.7 |
| PSA-5 | OG30 | 6.4×1.7×2.6 | 2500 | 7.7 |
| PSA-6 | OG50 | 6.5×1.7×3.2 | 3000 | 11.7 |
| PSA-7 | OG50 | 6.7×1.7×3.2 | 3500 | 11.9 |
| PSA-8 | OG50 | 6.7×1.7×3.2 | 3700 | 11.9 |
| PSA-9 | OG50 | 10.5×1.75×3.2 | 3800 | 16 |
| PSA-10 | OG50 | 10.5×1.75×3.2 | 3850 | 16 |
| PSA-11 | OG50 | 10.5×1.75×3.2 | 3900 | 16 |
| PSA-12 | QGF0 | 10.5×1.75×3.2 | 3950 | 16.5 |
| PSA-13 | CG50 | 11×1.75×3.2 | 4000 | 20 |
| PSA-14 | 0G50 | 11×1.75×3.2 | 4100 | 20 |
| PSA-15 | OG50 | 11×1.75×3.2 | 4150 | 23.5 |
| PSA-16 | OG50 | 11.5×1.75×3.2 | 4200 | 23.5 |
| PSA-17 | OG50 | 11.5×1.75×3.2 | 4300 | 23.5 |
| PSA-18 | OG50 | 12×1.75×3.2 | 4500 | 31.5 |
| PSA-19 | OG50 | 11.5×1.75×3.2 | 4600 | 31.5 |
| PSA-20 | OG50 | 11.5×1.75×3.2 | 4650 | 31.5 |
| PSA-21 | OG50 | 11.5×1.75×3.2 | 4900 | 31.5 |
| PSA-22 | OG50 | 12.5×1.75×3.2 | 5000 | 31.5 |
| PSA-23 | OG60 | 12.8×1.75×3.25 | 5200 | 31.5 |
| PSA-24 | OG60 | 12.9×1.75×3.25 | 5300 | 32.5 |
| PSA-25 | OG60 | 12.9×1.75×3.25 | 5350 | 32.5 |
| PSA-26 | OG60 | 13×1.75×3.25 | 5400 | 32.5 |
| PSA-27 | OG60 | 13.8×1.75×3.25 | 5450 | 39.5 |
| PSA-28 | OG60 | 13.8×1.75×3.25 | 5500 | 39.5 |
| PSA-29 | OG60 | 13.85×1.9×3.25 | 5550 | 39.7 |
| PSA-30 | OG60 | 14.5×1.9×3.25 | 5800 | 39.7 |
| PSA-31 | OG60 | 14.5×1.9×3.25 | 5850 | 39.7 |
| PSA-32 | OG60 | 14.5×1.9×3.25 | 5800 | 39.7 |
| PSA-33 | OG60 | 15×1.9×3.25 | 5950 | 47.7 |
| PSA-34 | 0060 | 15×1.9×3.25 | 6000 | 47.7 |
| PSA-35 | OG60 | 15×1.9×3.25 | 6050 | 47.7 |
| PSA-36 | OG60 | 15.5×1.9×3.25 | 6300 | 48 |
| PSA-37 | OG60 | 15.5×1.9×3.25 | 6350 | 48 |
| PSA-38 | OG60 | 15.5×1.9×3.25 | 6400 | 48 |
| PSA-39 | OG60 | 15.5×1.9×3.25 | 6450 | 48 |
| PSA-40 | OG60 | 15.5×1.9×3.25 | 6500 | 58 |
| PSA-41 | OG100 | 15.5×2.3×3.35 | 7700 | 58 |
| PSA-42 | OG100 | 15.5×2.3×3.35 | 7750 | 58 |
| PSA-43 | OG100 | 15.5×2.3×3.35 | 7800 | 58 |
| PSA-44 | OG100 | 15.5×2.3×3.35 | 7850 | 58 |
| PSA-45 | OG100 | 15.5×2.3×3.35 | 7850 | 58 |
| PSA-46 | OG100 | 15.5×2.3×3.35 | 7900 | 59 |
| PSA-47 | OG100 | 15.5×2.3×3.35 | 7900 | 59 |
| PSA-48 | OG100 | 15.5×2.3×3.35 | 8050 | 59 |
| PSA-49 | OG100 | 15.5×2.3×3.35 | 8200 | 79 |
| PSA-50 | OG100 | 15.5×2.3×3.35 | 8250 | 79 |
Why VPSA Oxygen Generator Becomes Core Equipment for Coal Chemical Oxygen Supply
Coal chemical processes have three core requirements for oxygen supply: large continuous output, stable purity, and strong environmental adaptability—all perfectly met by VPSA oxygen generators:
- Efficiency Boost for Coal Gasification: Traditional air-blown gasification has low carbon conversion rate (≤85%) due to 79% nitrogen in air. 94% pure oxygen reduces nitrogen content, increasing carbon conversion rate to ≥98% (e.g., a 500,000-ton/year methanol plant saves 120,000 tons of coal annually).
- Stability vs. Liquid Oxygen: Liquid oxygen supply relies on long-distance transportation and large storage tanks, with supply easily disrupted by extreme weather or logistics issues. The VPSA generator produces oxygen on-site 24/7, with a 5Nm³ buffer tank ensuring stable supply during load fluctuations of gasification furnaces.
- Adaptability vs. PSA Oxygen Generators: PSA oxygen generators (pressure swing adsorption) have higher energy consumption (≥0.9kWh/Nm³ O₂) and smaller output (≤60Nm³/h), making them unsuitable for large coal chemical units. The VPSA model's vacuum regeneration technology cuts energy use by 30% and matches 120Nm³/h output demands.
PSA Based Oxygen Plant vs. Other Oxygen Supply Methods: Coal Chemical Applicability Comparison
As a typical PSA based oxygen plant, the VPSA generator outperforms other oxygen supply methods in coal chemical scenarios:
| Oxygen Supply Method |
Output Scale |
Energy Consumption (kWh/Nm³ O₂) |
Initial Investment |
Annual Operating Cost |
Coal Chemical Adaptability |
| VPSA Oxygen Generator |
90-130Nm³/h |
≤0.625 |
High ($45k-$60k) |
Low ($76.5k) |
Excellent (continuous, corrosion-resistant) |
| PSA Oxygen Generator |
≤60Nm³/h |
≥0.9 |
Medium ($25k-$35k) |
Medium ($110k) |
Poor (small output, high energy use) |
| Liquid Oxygen |
≥200Nm³/h |
- (high transportation cost) |
High ($80k-$100k) |
Very High ($220k) |
Good (large output, unstable supply) |
| Bottled Oxygen |
≤10Nm³/h |
- (high labor cost) |
Low ($5k-$8k) |
Extremely High ($500k+) |
Unsuitable (small output, high risk) |
Environmental Adaptability Design of VPSA Oxygen System in Coal Chemical Workshops
Coal chemical workshops face harsh environments (high dust, high sulfur, large temperature fluctuations), so the VPSA Oxygen System has carried out targeted design optimizations:
- Dust and Sulfur Resistance: The air inlet is equipped with a three-stage dust removal (cyclone + bag filter + HEPA) and desulfurization (activated carbon) system, removing 99.9% of dust and 95% of sulfur-containing gases, protecting molecular sieves from contamination.
- Corrosion Resistance: The equipment body uses fluorocarbon coating, and oxygen-contacting parts adopt 316L stainless steel, resisting corrosion from coal gasification by-products (e.g., hydrogen sulfide, ammonia).
- Temperature Adaptability: The system is equipped with a high-temperature heat dissipation module and low-temperature insulation layer, ensuring normal operation in the range of -20℃ to 50℃—adapting to extreme weather in northern coal chemical bases.
Conclusion
The 120Nm³/h 94% purity VPSA oxygen generator, as a high-performance PSA based oxygen plant, has become core equipment for coal chemical oxygen supply due to its large output, low energy consumption, and strong environmental adaptability. It relies on advanced pressure swing adsorption for oxygen production technology to match the continuous, high-demand oxygen needs of coal gasification and methanol synthesis processes, while cutting fuel consumption by 15% and CO₂ emissions by 30%. Compared with PSA oxygen generators and liquid oxygen supply, it delivers obvious lifecycle cost advantages and supply stability, providing solid support for coal chemical enterprises to achieve energy conservation, emission reduction, and safe production. As the coal chemical industry moves toward green and low-carbon development, the VPSA Oxygen System will play an increasingly critical role in promoting the industry's high-quality transformation.
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