Coal Gas & Industrial Tail Gas Compressors

Coal Gas & Industrial Tail Gas Compressors

50+ years of coal-gas-type process compressor manufacturing — blast furnace gas, coke oven gas, water gas, coalbed methane, desorption gas, syngas, and CO. Explosion-proof, nitrogen-purged shaft seals, corrosion-resistant materials. 2–500 Nm³/min, 0.1–32 MPa, API 618.

SKU: 9586656faaa9 Category: Tags: , , , ,

Coal Gas & Industrial Tail Gas Compressors

50+ years of coal-gas-type process compressor manufacturing — covering blast furnace gas, coke oven gas, water gas, coalbed methane, desorption gas, syngas, and CO. Proven in carbon reduction and dual-carbon industrial decarbonisation programmes.

Flow: 2–500 Nm³/minPressure: 0.1–32 MPaPower: 5.5–10,000 KWAPI 618

Product Overview

Ever Power has over 50 years of dedicated experience in the manufacture of coal-gas-type process compressors. The product range covers the full spectrum of industrial fuel and process gas types generated in steel, chemical, and energy conversion industries: blast furnace gas (BFG), coke oven gas (COG), water gas, desorption gas, analytical gas, coalbed methane, shale gas, wellhead gas, and industrial tail gases including carbon monoxide and synthesis gas. Applications span pollution abatement at steel and coking plants, utilisation of by-product gases for power generation and chemical feedstock, coalbed methane drainage from underground coal mines, and comprehensive support for CCUS industrial carbon emission reduction programmes.

All units are designed with explosion-proof electrical equipment, gas-tight nitrogen-purged shaft seals, and corrosion-resistant materials appropriate to the specific gas composition. Products comply with API 618 and related national standards; frame types M, D, L, P, and Z are available to suit installation space and capacity requirements.

Key Technical Parameters

2 – 500

Flow Capacity (Nm³/min)

0.1 – 32.0

Discharge Pressure (MPa)

5.5 – 10,000

Motor Power (KW)

1.5 – 150 T

Piston Force

BFG / COG / Water gas / CBM / CO / Syngas

Compression Media

M / D / L / P / Z

Frame Types

Product Range

Blast Furnace Gas Compressors

Large-volume BFG recovery and boosting in steelworks. CO-rich composition requires CO-rated materials and gas-tight seals. Typical models: DW-100/8, 4MW-56/36.

Coke Oven Gas Compressors

COG purification and compression for chemical feedstock (methanol, hydrogen) and power generation fuel. Tar-resistant inlet filtration package. Models: 6MW-105/1-32, 4MW-95/26, LW-60/8.

Water Gas Compressors

Compression of CO-H₂ water gas from coal gasification units for methanol and ammonia synthesis feed. Models: DW-60/18.

Coalbed Methane / Shale Gas Compressors

Underground drainage CBM and surface shale gas wellhead boosting. Explosion-proof to mining safety standards. Models: 4M-200/4.5.

Desorption / Stripping Gas Compressors

Recompression of desorbed or stripped gas from PSA, solvent absorption, and gas purification systems. Models: LW-52/3, ZW-20/5-15.

Syngas / CO / Regeneration Gas

Synthesis gas, carbon monoxide, and regeneration gas compression for chemical plant processes. CO-service materials standard. Models: 4MW-56/36, ZW-20/5-15.

Coal Gas & Industrial Tail Gas Compressors — Product Range

Representative Model Specifications

Coal gas & tail gas compressors · API 618 · Explosion-proof electrical
Model Gas Type Flow (Nm³/min) Discharge Pressure (MPa) Notes
DW-100/8 Blast furnace gas 100 0.80 2-col 2-stage; CO-rated seals
DW-60/18 Water gas 60 1.80 2-col 2-stage; syngas service
6MW-105/1-32 Coke oven gas 105 1.0–32 6-col multi-stage; large COG
4MW-95/26 Coke oven gas 95 2.60 4-col multi-stage
4M-200/4.5 Coalbed methane 200 0.45 4-col 2-stage; CBM drainage
LW-52/3 Desorption gas 52 0.30 2-col 1-stage
LW-60/8 Coke oven gas 60 0.80 2-col 2-stage
4MW-56/36 CO / syngas 56 3.60 4-col multi-stage
ZW-20/5-15 Desorption / tail gas 20 5.0–15 3-col multi-stage; PSA tail gas
Coal Gas & Industrial Tail Gas Compressors — Representative Model Specifications

Applications

⚙️

Blast Furnace Gas Recovery

BFG boosting for power generation, hot stove firing, and co-generation at integrated steelworks. Large-volume, low-pressure CO-rich gas service.

Coke Oven Gas Utilisation

COG compression for methanol synthesis, hydrogen extraction, city gas blending, and power plant firing at coking plants.

⛏️

Coal Seam / Coalbed Methane

Underground CBM drainage from coal mine ventilation and goaf drainage systems. Low-pressure suction, mine-safety explosion-proof certification.

️

Desorption Gas Recompression

Recompression of desorbed gas from PSA purification beds, solvent absorbers, and vacuum stripper columns.

⚗️

Synthesis Gas Compression

Syngas (CO+H₂) compression for methanol, ammonia, and Fischer-Tropsch synthesis plants.

Carbon Monoxide Recovery

Industrial CO recovery from steelmaking off-gas, calcium carbide furnace gas, and chemical plant tail gas for downstream chemical use.

Shale Gas Wellhead Boosting

Surface compression of low-pressure shale gas from multi-well pads for pipeline injection or on-site processing.

♻️

Industrial Decarbonisation

CO and syngas capture and re-use programmes at steelworks and chemical plants reducing industrial carbon emissions.

For the CO₂ portion of industrial decarbonisation programmes, our CO₂ Compressors for Carbon Capture, Recovery & Liquefaction cover the full carbon capture chain from dilute flue gas through to injection-pressure CO₂.
Coal Gas & Industrial Tail Gas Compressors — Applications

Customer Case Studies

★★★★★

"The DW-100/8 blast furnace gas compressors have been running at our No.3 blast furnace for 32 months. CO-content of the gas is consistently above 22%; the nitrogen-purged seals have maintained gas-tight integrity throughout. No unplanned shutdowns attributable to the compressors."

China · Integrated Steelworks

BFG recovery and boosting · 5.0 / 5

★★★★★

"We installed 6MW-105/1-32 coke oven gas compressors on our methanol synthesis train. The tar-resistant inlet filtration package has extended valve cleaning intervals from 2,000 hours to over 6,000 hours compared with our previous equipment."

China · Coal Chemical Plant

Coke oven gas compression for methanol synthesis · 5.0 / 5

★★★★☆

"The 4M-200/4.5 units on our underground CBM drainage system have handled methane concentrations ranging from 35% to 90% without requiring re-configuration. Mining-safety explosion-proof certification was verified before commissioning."

Australia · Coal Mine Operator

Coalbed methane underground drainage · 4.0 / 5

Coal Gas & Industrial Tail Gas Compressors — Customer Case Studies

Frequently Asked Questions

What is the difference between coke oven gas and blast furnace gas compression duties?
Coke oven gas (COG) typically contains 55–60% H₂, 25–30% CH₄, and small amounts of CO, CO₂, and nitrogen, with significant tar and naphthalene contamination risk requiring careful inlet filtration. Blast furnace gas (BFG) is predominantly CO (20–25%), N₂ (55–60%), and CO₂ (20–22%), at low calorific value. Both require explosion-proof electrical design, gas-tight shaft seals, and corrosion-resistant materials — but the specific metallurgy and filtration design differ significantly between the two applications.
How are shaft seals designed to prevent explosive gas leakage?
Oil-film labyrinth seals with nitrogen purge are the standard approach for flammable gas service. A continuous nitrogen barrier is maintained at pressure between the process gas chamber and the atmosphere, preventing any combustible gas from reaching the motor or external environment. Gas detection sensors are interlocked with automatic shutdown. All electrical equipment within the classified zone is rated to the applicable ATEX or IEC Ex standard.
Can these compressors handle wet or tar-laden coke oven gas?
Yes. Inlet knockout drums, coalescing filters, and heated inlet piping are integral parts of the coke oven gas compressor package. Cylinder bore materials and valve components are specified to resist tar adhesion and naphthalene deposition. Heated cylinder jackets can be supplied where condensation in the cylinder bore is a risk.
What happens if there is an unplanned shutdown on a blast furnace gas compressor?
Automatic safety shutdown sequences include: isolation of suction and discharge block valves, nitrogen purge of the cylinder and piping, venting of trapped gas to a safe elevated vent point, and locking out electrical supply. These sequences are pre-programmed into the PLC with manual override for maintenance. Re-start interlocks verify safe conditions before allowing restart.
Are these compressors suitable for coalbed methane from underground mines?
Yes. Coalbed methane (CBM) compressors for underground drainage are a specific product type in this range. They are designed for methane concentrations from 30% to 100% CH₄, low inlet pressure (0.02–0.15 MPa typically), and must meet mining safety explosion-proof standards. Models are available in fixed-installation and trailer-mounted configurations for coal mine drainage stations.
Working with natural gas or LNG in the same plant? Our Natural Gas / LNG / BOG Skid-Mounted Compressors cover the full range of methane-class combustible gas compression duties.

Ready to Move Forward?

Provide your gas composition (including CO, H₂S, and tar content where applicable), inlet conditions, required discharge pressure, and site classification zone — our engineering team will specify the appropriate materials, sealing system, and explosion-proof package within 48 hours.

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

Related Products