CO₂ Compressors — Carbon Capture, Recovery & Liquefaction
Full range of CO₂ reciprocating compressors for fermentation tail-gas recovery, food-grade and industrial liquefaction, dry ice production, CCUS carbon capture, and supercritical CO₂ extraction — drafter of the Chinese national CO₂ compressor standard.
Product Overview
Ever Power's reciprocating CO₂ compressors are accepted by enterprises domestically and internationally across the full product range. As drafter of the Chinese national standard GB/T 11884-2014 for oil-free medium-pressure CO₂ compressors, the company has decades of dedicated R&D in CO₂ compression for carbon reduction and dual-carbon target programmes. The product coverage spans four distinct duty classes: low-pressure kiln gas and fermentation tail gas for CCUS feed, medium-pressure liquefaction for food-grade and industrial CO₂, high-pressure dry ice and supercritical extraction duties, and booster compressors for CO₂ fire suppression recharging and synthetic new-material chemical processes.
All products comply with API 618 and applicable national standards. ISO 9001 certification and full Class-I / Class-II pressure vessel permits are in place. Material selection for wet CO₂ service — including stainless steel wetted parts, PTFE-composite valve seats, and anti-corrosion coatings — is addressed at the specification stage.
Key Technical Parameters
2 – 400
Flow Capacity (Nm³/min)
0.1 – 32.0
Discharge Pressure (MPa)
5.5 – 10,000
Motor Power (KW)
1.5 – 150 T
Piston Force
CO₂ / CO₂-rich mixtures
Compression Medium
M / D / P / L / Z
Frame Types
Product Range by Duty Class
Low-Pressure Kiln Gas / Fermentation Tail Gas (0.1–1.0 MPa)
Large-volume CO₂-rich feed gas compression for CCUS carbon capture pre-treatment, biogas upgrading, and fermentation off-gas collection systems.
Medium-Pressure Liquefaction — Food & Industrial Grade (1.2–4.0 MPa)
Compression to liquefaction pressure for food-grade CO₂ (beverage carbonation, food freezing) and industrial CO₂ (welding shield gas, chemical processes). Products meet food-contact material requirements.
High-Pressure — Dry Ice & Supercritical Extraction (4.0–32 MPa)
Dry ice production (6–9 MPa), supercritical CO₂ extraction for hops, essential oils, pharmaceuticals, and decaffeination (10–32 MPa).
CCUS / Carbon Capture Transport & Injection (10–25 MPa)
CO₂ pipeline transport compression and geological storage injection for power station, cement, and steel-plant carbon capture systems.

Low-Pressure CO₂ Compressor Specifications (Discharge 0.1–1.0 MPa)
| No. | Model | Pattern | Flow (m³/min) | Discharge Pressure (MPa) | Power (KW) | Weight (t) |
|---|---|---|---|---|---|---|
| 1 | ZW-6/8 | 2-col 2-stage | 6 | 0.80 | 45 | 2 |
| 2 | LW-10/8 | 2-col 2-stage | 10 | 0.80 | 110 | 1.8 |
| 3 | LW-20/2 | 2-col 1-stage | 20 | 0.20 | 75 | 1.8 |
| 4 | LW-20/8 | 2-col 2-stage | 20 | 0.80 | 132 | 3 |
| 5 | LW-30/4 | 2-col 1-stage | 30 | 0.40 | 132 | 3.4 |
| 6 | LW-40/2.5 | 2-col 1-stage | 40 | 0.25 | 160 | 3.4 |
| 7 | LW-40/4 | 2-col 2-stage | 40 | 0.40 | 160 | 3.4 |
| 8 | LW-60/2.5 | 2-col 1-stage | 60 | 0.25 | 240 (250) | 4.82 |
| 9 | LW-60/4 | 2-col 2-stage | 60 | 0.40 | 240 (250) | 4.82 |
| 10 | DW-60/6 | 2-col 2-stage | 60 | 0.60 | 350 | 6 |
| 11 | DW-68/4 | 2-col 2-stage | 68 | 0.40 | 315 | 6.8 |
| 12 | DW-100/6 | 2-col 2-stage | 100 | 0.60 | 550 | 13 |
| 13 | DW-116/6 | 2-col 2-stage | 116 | 0.00 (inlet≈0) | 630 | 13 |
| 14 | D-120/4 | 2-col 2-stage | 120 | 0.40 | 630 | 13.5 |
| 15 | DW-120/4 | 2-col 2-stage | 120 | 0.40 | 550 | 13.5 |
| 16 | DW-130/4 | 2-col 2-stage | 130 | 0.40 | 630 | 13.5 |
| 17 | DW-150/4 | 2-col 2-stage | 150 | 0.40 | 710 | 18 |
| 18 | DW-190/2.5 | 2-col 1-stage | 190 | 0.25 | 650 | 15 |
| 19 | DW-290/2 | 2-col 1-stage | 290 | 0.20 | 1,000 | 17 |
| 20 | DW-300/1 | 2-col 1-stage | 300 | 0.10 | 550 | 14 |
| 21 | DW-325/2 | 2-col 1-stage | 325 | 0.20 | 1,100 | 18 |
| 22 | 4MW-180/6.5 | 4-col 2-stage | 180 | 0.65 | 1,000 | 26 |
| 23 | 4MW-240/6.5 | 4-col 2-stage | 240 | 0.65 | 1,300 | 26 |
| 24 | HW-380/2.5 | 4-col 1-stage | 380 | 0.25 | 1,300 | 28 |
| 25 | HW-600/1 | 4-col 1-stage | 600 | 0.10 | 1,100 | 30 |
Medium & High-Pressure CO₂ Compressor Specifications (1.2–9.0 MPa)
| No. | Model | Pattern | Flow (m³/min) | Discharge Pressure (MPa) | Power (KW) | Weight (t) |
|---|---|---|---|---|---|---|
| 1 | ZW-2/69 (skid) | 3-col 3-stage | 2 | 6.00 | 45 | — |
| 2 | ZW-4/25 (skid) | 3-col 3-stage | 4 | 2.50 | 55 | — |
| 3 | ZW-5.5/24 | 3-col 3-stage | 5.5 | 2.40 | 75 | 3.5 |
| 4 | LW-6/18 | 2-col 3-stage | 6 | 1.80 | 65 | 1.8 |
| 5 | LW-8/18 | 2-col 3-stage | 8 | 1.80 | 75 | 1.8 |
| 6 | LW-10/18 | 2-col 3-stage | 10 | 1.80 | 110 | 3 |
| 7 | LW-16/30 | 2-col 3-stage | 16 | 3.00 | 110 | 3 |
| 8 | LW-20/30 (skid) | 2-col 3-stage | 20 | 3.00 | 240 (250) | 6 |
| 9 | LW-20/36 (skid) | 3-col 3-stage | 20 | 3.60 | 250 | 9.5 |
| 10 | LW-25/30 | 2-col 3-stage | 25 | 3.00 | 280 | 6.5 |
| 11 | DW-25/30 | 2-col 3-stage | 25 | 3.00 | 280 | 6.5 |
| 12 | DW-25/40 (30) | 2-col 4-stage | 25 | 4.00 (3.00) | 315 (280) | 6.5 |
| 13 | DW-30/30 | 3-col 3-stage | 30 | 3.00 | 355 | 6 |
| 14 | DW-32/30 | 2-col 3-stage | 32 | 3.00 | 400 | 11 |
| 15 | DW-35/30 | 2-col 3-stage | 35 | 3.00 | 400 | 11 |
| 16 | DW-35/40 (30) | 2-col 4-stage | 35 | 4.00 (3.00) | 450 (400) | 11 |
| 17 | DW-40/46 | 2-col 4-stage | 40 | 4.00 | — | 11 |
| 18 | DW-44/25 | 2-col 3-stage | 44 | 2.50 | 450 | 11 |
| 19 | DW-46/30 | 2-col 3-stage | 46 | 3.00 | 550 | 11.5 |
| 20 | DW-50/25 | 2-col 4-stage | 50 | 2.50 | 500 | 11 |
| 21 | DW-60/40 (30) | 2-col 4-stage | 60 | 4.00 (3.00) | 600 (550) | 17 |
| 22 | DW-70/40 (30) | 2-col 4-stage | 70 | 4.00 (3.00) | 850 | 17 |
| 23 | 4MW-85/40 (30) | 4-col 4-stage | 85 | 4.00 (3.00) | 1,000 | 26 |
| 24 | 4MW-90/40 (30) | 4-col 4-stage | 90 | 4.00 (3.00) | 1,100 | 26 |
| 25 | 4MW-100/40 (30) | 4-col 4-stage | 100 | 4.00 (3.00) | 1,400 | 26 |
| 26 | 4MW-120/40 (30) | 4-col 4-stage | 120 | 4.00 (3.00) | 1,400 | 26 |
| 27 | 4MW-150/40 (30) | 4-col 4-stage | 150 | 4.00 (3.00) | 1,700 | 27 |

Key Representative Models from Current Catalogue
| Model | Application | Flow (Nm³/min) | Discharge Pressure (MPa) |
|---|---|---|---|
| 6MW-210/32 | CO₂ liquefaction plant | 210 | 32 |
| 4MW-148/25 | CO₂ liquefaction (large) | 148 | 25 |
| LW-80/1.5 | Kiln gas / low-pressure CO₂ | 80 | 1.5 |
| DW-4.9/7-70 | CO₂ booster | 4.9 | 7–70 |
| 4MW-47/46 | CO₂ liquefaction | 47 | 4.6 |
| 4MW-50/130 | High-pressure CO₂ | 50 | 13.0 |
| 3ZW-45/25 | CO₂ medium-pressure | 45 | 2.5 |
| ZW-2/60 | CO₂ booster | 2 | 6.0 |
Applications
Fermentation Tail-Gas CO₂ Recovery
Collection and purification of CO₂ from brewery and distillery fermentation vats for re-use in beverage carbonation.
Food-Grade CO₂ Liquefaction
Compression to 6–8 MPa for liquefaction and storage of food-grade CO₂ for beverage carbonation and food freezing.
❄️
Dry Ice Production
High-pressure compression at 6–9 MPa for dry ice extruders serving food logistics, pharmaceuticals, and industrial cleaning.
CCUS Carbon Capture
Large-volume compression of captured CO₂ from power station and cement kiln flue gas for pipeline transport and geological storage.
⚗️
Supercritical CO₂ Extraction
10–32 MPa compression for scCO₂ extraction of hops, essential oils, caffeine, and pharmaceutical active ingredients.
Fire Suppression Cylinder Recharging
Medium-pressure CO₂ compression for recharging fixed and portable fire suppression system cylinders.
Synthetic Plastics & Alkali Chemicals
CO₂ supply for polycarbonate synthesis, urea production, and sodium bicarbonate manufacturing processes.
Enhanced Oil Recovery (EOR)
High-pressure CO₂ injection at 10–25 MPa for EOR operations, simultaneously utilising and permanently sequestering CO₂.

Customer Case Studies
"We installed 4MW-148/25 units to replace ageing equipment at our CO₂ liquefaction plant. Throughput increased by 18% and the modular skid design simplified integration with our existing cold box. Oil-free purity has been verified at every batch test."
France · Food-Grade CO₂ Liquefaction Plant
CO₂ liquefaction compression at 25 MPa · 5.0 / 5
"The LW-80/1.5 kiln-gas compressors handling our fermentation tail-gas recovery have run for over 22 months without unplanned downtime. CO₂ recovery rate from fermentation reached 94% of theoretical yield in steady-state operation."
United States · Brewery Group
Fermentation CO₂ recovery and recycle · 5.0 / 5
"High-pressure CO₂ injection at our EOR pilot was challenging — the combination of wet CO₂ and high pressure ruled out most suppliers. Ever Power specified stainless wetted parts and anti-corrosion coatings on all CO₂-contact surfaces, and the units have been in injection service for 14 months."
Saudi Arabia · Enhanced Oil Recovery Operator
CO₂ injection at 20 MPa · 4.0 / 5

Frequently Asked Questions
Ready to Move Forward?
Send us your CO₂ compression duty specification — source gas composition, inlet conditions, required discharge pressure, and flow rate. We will return a detailed technical and commercial proposal within 48 hours, including recommendations for corrosion-resistant materials where required.
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