Compressed Air for Chemical Processing
Within chemical processing plants, compressed air is one of the most critical utilities on site, relied on for precise process control, safe material handling, and keeping continuous operations running around the clock.
What are some common uses of compressed air in chemical processing?
- Instrument Air and Process Control: Clean, dry compressed air is the lifeblood of a chemical plant's control system, supplying the pneumatic actuators, positioners, and control valves that regulate flow, pressure, and dosing throughout the process. Instrument air must meet stringent purity standards, as moisture or contamination can foul instrumentation and cause costly process upsets.
- Valve Actuation and Automation: Pneumatic systems open, close, and modulate the countless valves that batch, blend, and distribute product across the plant, as well as powering emergency shutdown (ESD) valves that bring the process to a safe state.
- Pneumatic Conveying: Compressed air conveys powders, granules, pellets, and other dry bulk materials between silos, reactors, and packaging lines without mechanical handling.
- Agitation, Mixing and Sparging: Air is sparged through liquids to agitate, mix, or introduce oxygen into reaction vessels and treatment tanks.
- Nitrogen Generation for Inerting and Blanketing: Nitrogen is used to blanket storage tanks and reactors, purge vessels and lines, and displace oxygen, reducing the risk of fire or explosion in flammable atmospheres and preventing product oxidation.
What products and services are popular in the chemical processing industry?
- Rotary Screw Compressors: Chemical plants typically run a high, continuous compressed air demand across many processes, making rotary screw compressors an efficient and reliable method of air delivery.
- Oil-free Air Compressors: Where compressed air contacts sensitive processes or products, or feeds instrument air and nitrogen generation, oil-free compressors provide peace of mind that the air is completely free from oil contamination.
- Advanced Air Treatment: Chemical processing relies on multi-stage filtration to remove oil, dirt, and water particles, delivering the clean, pure air that instrumentation and process applications demand.
- Desiccant Dryers: Instrument air and many process applications require air that is completely free of moisture. Desiccant dryers achieve pressure dewpoints as low as −70 °C, protecting instrumentation and keeping airlines free from condensation, freezing, and corrosion.
- Heat Recovery Systems: A large portion of the energy used by a compressor is lost as heat. With heat recovery systems, you can recover up to 96% of this energy for space heating or water heating. In an energy-intensive plant, recovering this heat cuts power costs and reduces emissions.
- Leak Detectors: Hidden air leaks are the most common cause of inefficiency in a compressed air system. Being able to identify and manage leaks in-house helps chemical plants control energy costs and maintain system pressure.
- Air Audits: Plants looking to reduce power usage will want their compressors running as efficiently as possible. Regular air demand analysis and air leak surveys can save up to 30% of power usage, while air quality testing verifies that instrument and process air meet the required purity standards.
- Preventative Maintenance: Regular maintenance protects against breakdowns and unplanned downtime, critical where a compressed air failure can halt the entire process. Maintenance plans keep servicing managed effectively across multiple compressors and split costs into manageable monthly payments.
- Nitrogen Generators: Nitrogen is essential across chemical processing for tank blanketing, vessel purging, and inerting flammable atmospheres. On-site nitrogen generators deliver on-demand nitrogen at purities up to 99.999% without the cost, delivery delays, and handling risks of bottled nitrogen.
- ATEX Rated Pneumatics and Air Products: Many chemical plants have hazardous zones and explosive atmospheres. Brands stocked by PSL have ATEX rated variants, safe for use in hazardous areas.
Blogs
List of Services
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Avoiding the Inevitable: Why Preventative Maintenance is Vital for Air CompressorsList Item 1
Skipping routine compressor maintenance often leads to faster wear, unexpected failures, production stoppages, reduced efficiency, and hefty repair bills.
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Elevate your Compressed Air Quality with Festo's MS SeriesList Item 2
Achieving the right air purity takes both expertise and flexible technology. The Festo MS series offers exactly that, with it's innovative, modular solutions.
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Finding the Invisible: How Systematic Air Leak Detection Transforms Efficiency and SustainabilityList Item 3
When businesses review their power usage to find out where money is being wasted, often one of the biggest culprits (and easiest to address) is compressed air leaks.
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From Hot Air to Smart Savings: Heat Recovery ExplainedList Item 4
When you use an air compressor, a lot of the energy is lost as heat. A heat recovery system allows you to capture this heat and re-use it for water or space heating.
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