CO2 Compressors — Carbon Capture, Recovery & Liquefaction

Full-range reciprocating CO₂ compressors for fermentation recovery, food-grade liquefaction, dry ice production, CCUS carbon capture, and supercritical extraction. 2–400 Nm³/min, 0.1–32 MPa. National CO₂ compressor standard drafter. API 618.

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.

Flow: 2–400 Nm³/minPressure: 0.1–32 MPaPower: 5.5–10,000 KWAPI 618

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.

CO2 Compressors — Carbon Capture, Recovery & Liquefaction — Product Range by Duty Class

Low-Pressure CO₂ Compressor Specifications (Discharge 0.1–1.0 MPa)

Compression medium: CO₂ / CO₂ mixtures · Low-pressure class
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)

CO₂ liquefaction & dry-ice class · 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
CO2 Compressors — Carbon Capture, Recovery & Liquefaction — Medium & High-Pressure CO₂ Compressor Specifications (1.2–9.0 MPa)

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.

For oxygen and nitrogen compression supporting the same industrial plant, see our Air Separation Oxygen / Nitrogen / Argon Compressors — sharing the same oil-free piston manufacturing platform and pressure vessel credentials.
CO2 Compressors — Carbon Capture, Recovery & Liquefaction — Applications

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

CO2 Compressors — Carbon Capture, Recovery & Liquefaction — Customer Case Studies

Frequently Asked Questions

What CO₂ sources can these compressors handle?
The range handles virtually all industrial CO₂ sources: fermentation tail gas (40–98% CO₂), flue gas from power stations and cement kilns (5–25% CO₂ after capture), industrial kiln gas, biogas upgrading, chemical plant off-gas, and pure CO₂ from ammonia plant decarbonisation units. Inlet gas composition affects material selection and inter-stage cooling design.
What is the difference between a kiln-gas compressor and a food-grade CO₂ compressor?
Kiln-gas (窑气) compressors handle raw, dilute CO₂ at low pressure — the CO₂ content may be 35–45% with moisture, dust, and trace impurities. They are designed for large-volume, low-pressure duty. Food-grade CO₂ compressors handle purified, high-purity CO₂ (>99.9%) and are built to food-contact material standards with contamination-controlled seals and valves.
Can these compressors be used for supercritical CO₂ extraction?
Yes. High-pressure models reaching 32 MPa discharge pressure cover supercritical CO₂ (scCO₂) extraction for hops, essential oils, caffeine, and pharmaceutical active ingredients. These models require specialised high-pressure valve design and interstage cooling to manage the thermodynamic properties of CO₂ near its critical point (31.1 °C / 7.38 MPa).
How is the CCUS application different from standard CO₂ compression?
CCUS carbon capture applications require large-volume, continuous compression of dilute flue gas CO₂ through capture solvents, followed by compression of the concentrated CO₂ stream to pipeline transport pressure (typically 10–15 MPa) or injection pressure (15–25 MPa for geological storage). These systems require high availability, wide turndown capability, and corrosion-resistant materials for wet CO₂ service.
What is the maximum discharge pressure available for CO₂?
The catalogue range covers up to 32.00 MPa discharge pressure. This covers food-grade liquefaction (up to ~8 MPa), dry ice production (~6–9 MPa), supercritical extraction (~10–32 MPa), and EOR injection (10–25 MPa). Higher pressures require consultation.
Looking for natural gas compression for the same industrial site? Our Natural Gas / LNG / BOG Skid-Mounted Compressors cover wellhead boosting, LNG liquefaction feed, and CNG station compression.

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.

Get a QuoteAll ProductsAbout Us

Factory tour

ep-oil-free-compressor-img
ep-oil-free-compressor-img2
ep-oil-free-compressor-img3
ep-oil-free-compressor-img4