Gas Compression
Petrochemical Gas Compression
Petrochemical gas compression sits at the heart of the chemical manufacturing process — moving reactive, flammable and often chemically aggressive gas streams between reactors, separation columns and storage systems in continuous production facilities where compressor availability directly determines plant output. The process gases handled in petrochemical applications are more varied and more demanding than in conventional hydrocarbon gas compression, requiring careful consideration of gas-lubricant compatibility alongside standard operating parameters.
NEXT Lubricants supports petrochemical gas compression with compressor lubricants developed for cracked gas, recycle gas and reactive chemical gas stream applications across ethylene, propylene, and broader petrochemical manufacturing.
Compression process
Petrochemical Gas Compression — Process, Applications & Compressor Role
Petrochemical manufacturing involves the compression of a wide range of process gas streams — from cracked gas in ethylene production through recycle gas in polymerisation reactors to reactive chemical intermediates in chemical manufacturing. Unlike refinery or pipeline gas, many petrochemical process gases are reactive under certain conditions and may interact with lubricant components at operating temperatures and pressures. Gas composition at the compressor inlet is closely controlled for process reasons, but varies between production units and across different stages of the manufacturing process.
Compressors in petrochemical service operate continuously in facilities where unplanned downtime halts plant output and has significant commercial consequences. The combination of reactive gas streams, continuous duty and the consequences of compressor failure makes lubricant selection — and particularly gas-lubricant compatibility assessment — an important part of the maintenance and reliability strategy for petrochemical compression assets.
Ethylene & Cracked Gas Compression
Compressors collect and pressurise raw biogas from anaerobic digesters, covered lagoon systems and landfill gas extraction networks, compressing it for onward treatment, energy recovery or combined heat and power generation.
Recycle Gas Compression
Compressors drive upgrading processes — including pressure swing adsorption, membrane separation and water scrubbing — that remove CO₂, H₂S and moisture to produce pipeline-quality biomethane meeting gas grid injection specifications.
Chemical Feedstock Compression
Following upgrading, compressors raise biomethane to the pressures required for injection into the natural gas distribution network, where it is supplied as a renewable gas substitute to residential, commercial and industrial consumers.
Polyolefin Production
For vehicle fuel applications, compressors pressurise biomethane to the high pressures required for Bio-CNG filling stations and distribution to compressed natural gas vehicle fleets and captive transport operations.
Related Applications
Explore Other Gas Compression Applications
Petrochemical gas compression is one part of a broader process and gas compression landscape. NEXT Lubricants also supports the following applications.
CO₂ Compression
Compression of carbon dioxide in carbon capture, industrial CO₂ supply and process applications where high-pressure CO₂ handling requires specific consideration.
Gas Gathering & Processing
Compression of associated gas and processed gas streams from wellhead collection through NGL extraction, dehydration and condensate stabilisation ahead of pipeline export.
Sour Gas Compression
Compression of gas streams containing hydrogen sulphide (H₂S) and carbon dioxide (CO₂) where gas composition places specific demands on materials and lubricant compatibility.
Hydrocarbon Gas Compression
Process gas compression in oil refining and gas processing across a range of hydrocarbon gas streams and operating conditions.