How does feed contamination affect steam cracker performance?
Feedstock contamination can reduce steam cracker furnace run length, increase maintenance requirements and contribute to higher emissions. Effective naphtha feed purification helps remove contaminants such as iron, salts and water that contribute to fouling and coke formation.
Pall has worked with ethylene producers worldwide to improve contamination control and support operational efficiency. Customer case studies have shown improvements in furnace run length, reduced downtime, lower maintenance requirements and measurable cost savings using prefilters and liquid/liquid coalescers.
What are the benefits of naphtha feed purification?
- Protects furnace tubes from coke-forming contaminants
- Extends furnace run length between decoking cycles
- Reduces maintenance requirements
- Supports higher production through reduced downtime
- Lowers energy consumption
- Helps reduce emissions
Why does feed purification improve steam cracker performance?
Feed purification removes contaminants that contribute to fouling and coke formation within furnace systems. By reducing contaminant loading, operators can extend furnace run length, reduce decoking frequency, lower maintenance requirements and improve operational efficiency.
Process improvements often result from optimising several parameters, making it difficult to measure the exact impact of each change individually.
Real-world results from steam cracker installations
| American Naphtha Cracker #1 |
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| American Naphtha Cracker #2 |
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| American Naphtha Cracker #3 |
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| European & Chinese steam crackers |
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Customer benefits
Effective naphtha feed purification solutions can help ethylene producers:
- Reduce furnace fouling
- Extend operating cycles between decoking
- Increase furnace tube life
- Reduce emissions
- Improve operational reliability
- Support the use of more contaminated or alternate feedstocks
In addition to improving current operations, this technology can enable some ethylene plants to process more contaminated or alternative feedstocks, including naphtha delivered by marine transport and Light Cat-Cracked Naphtha (LCN/FCC gasoline) from refineries.
For the installations described above, the payback period associated with high-efficiency liquid/liquid coalescers and prefilter systems was estimated to be less than one year.
Pall PhaseSep® EL coalescers improved ethylene plant output.
How feed purification supports steam cracker performance
Feedstock contamination can significantly affect steam cracker performance, operating costs and emissions. Case study results from ethylene producers worldwide demonstrate how high-efficiency liquid/liquid coalescers and absolute-rated prefilters can help extend furnace run length, reduce decoking frequency and improve overall plant productivity. This solution has also enabled some operators to process more challenging feedstocks while maintaining operational reliability. Explore additional petrochemical filtration and separation solutions designed to improve reliability, product quality and process efficiency.
Looking to extend furnace run length and reduce fouling in your steam cracker operation? Contact a Pall specialist to discuss feed purification solutions.
Talk to a Steam Cracker Filtration Specialist