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Random Packing

Rock-Solid Process Stability
Derived from Our Engineered Materials

Downtime is not an option. We deliver the industry's longest uptime and fault resistance through a complete innovation cycle: from proprietary material science like deformation-proof titanium alloys to patented structural designs that run 18+ months maintenance-free. We offer you an irreplaceable technology that guarantees operational certainty.

Custom Random Packing Process

Conquer Complex Towers in 3 Steps

Eliminate delays and unclear specs. Our 3-step process delivers precise, high-performance tower packing solutions, clearly priced and on schedule.

Engineer-to-Engineer Contact

Connect directly with senior engineers for tailored solutions, no sales talk.

Clear Solution & Price

Get detailed proposals with drawings and performance data in 3 days or less.

On-Time Delivery

Your deadline is our commitment, with proactive updates to ensure success.

Our Random Packing Portfolio

Tackle Fouling & Costs with Random Packing

Maximize mass transfer and durability with our metal, ceramic, and plastic random packing, minimizing downtime and costs.

Why Choose Us

More Than a Supplier, A Lifelong Partner in Mass Transfer

With 39 years of expertise, we empower 1,000+ global clients, including 30+ Fortune 500 firms, with efficient random packing solutions.

Proven Performance. Zero Risk.

39 Years of Industry-Proven Reliability
Trusted by World-Class Mega-Projects
36+ Months Record Stability in Harsh Conditions

On-Time Delivery. Guaranteed.

39 Years of Industry-Proven Reliability
Trusted by World-Class Mega-Projects
36+ Months Record Stability in Harsh Conditions

Expert Support. Always On.

39 Years of Industry-Proven Reliability
Trusted by World-Class Mega-Projects
36+ Months Record Stability in Harsh Conditions
Application-Driven Random Tower Packing

Tailored Random Packing for Your Industry

MResolve fouling and downtime with our micro-groove random packing, boosting efficiency and production capacity.

Petrochemical & Oil Refining

The Challenge:

High pressure drop, increasing energy use and lowering throughput.
Fouling, coking, corrosion, causing downtime and reduced efficiency.
Need for high purity in valuable products.
Handling large gas/liquid loads without flooding.

Sutong's Solution:

Robust packing for harsh conditions & max performance.
High void fraction and low pressure drop for energy/throughput gains.
Corrosion-resistant ceramic/coated metal packings for extended lifespan.
High-efficiency designs for precise separation.

Recommended Products:

Pall Rings (Metal, Ceramic, Plastic)
High Flow Ring
Intalox Saddle Ring

Chemical Industry

The Challenge:

Variable process conditions impacting performance.
High purity demands for product quality.
Contamination sensitivity and need for inert materials.
Energy efficiency crucial for cost competitiveness.

Sutong's Solution:

Wide array of materials and geometries for precise process matching.
High-efficiency designs for optimal mass transfer.
Robust materials resisting a broad range of chemicals.
Low-pressure drop packing for energy savings.

Recommended Products:

Raschig Rings (Metal, Ceramic)
Super Raschig Ring
Cascade Mini Ring CMR (Plastic)

Environmental Protection & Industrial Gas Processing

The Challenge:

Efficient removal of SOx, NOx, VOCs, HCl.
High gas flow rates leading to high pressure drop.
Corrosive or acidic media in scrubbing.
Poor distribution at low load conditions.

Sutong's Solution:

Specialized packing for gas absorption and scrubbing.
High void fraction, low pressure drop for high flow rates.
Ceramic and plastic options for superior corrosion resistance.
Advanced geometric designs for better liquid distribution.

Recommended Products:

Ceramic Pall Rings
High Flow Ring
Teller Rosette

Carbon Capture, Utilization, and Storage (CCUS)

The Challenge:

Large flue gas volumes require low pressure drop packing.
Corrosive solvents necessitate chemically resistant materials.
Minimizing solvent loss (entrainment).
Optimizing absorption kinetics for maximum CO₂ capture.

Sutong's Solution:

Packing engineered for high gas throughput & solvent resistance.
Low pressure drop reduces fan energy.
Materials minimize solvent entrainment and enhance CO₂ absorption.
Cost-effective carbon capture operations.

Recommended Products:

Super Mini Ring SMR (Ceramic/Metal)
High Flow Ring
Intalox Saddle Ring (Ceramic)

Air Separation

The Challenge:

High purity requirements for N₂, O₂, Ar.
Low pressure drop and high capacity for energy-intensive processes.
Material compatibility (inertness, non-degradation).
Long service life for plant investments.

Sutong's Solution:

Packing for demanding cryogenic conditions.
Materials selected for inertness, low-temp performance, high efficiency.
Minimize pressure drop for process energy efficiency.

Recommended Products:

Super Mini Ring SMR (Ceramic)
Pall Rings (Ceramic)
Ceramic Raschig Rings

Marine Ship Exhaust Gas Desulfurization & CCS

The Challenge:

Space and weight constraints for marine systems.
Corrosion from seawater and exhaust components.
Corrosion from seawater and exhaust components.
Preventing water and fine droplet carryover.

Sutong's Solution:

Specialized packing and mist eliminators for marine applications.
Plastic and corrosion-resistant ceramic packings for longevity.
High void fraction, low pressure drop for efficient G-L contact.
Effective mist elimination to prevent carryover.

Recommended Products:

Plastic Pall Rings
High Flow Ring
Ceramic Raschig Rings
Success Stories of Random Packing

See How Our Random Packing Drives Results

Struggling with inefficiency? Our random packing boosts performance and cuts costs, as proven by industry leaders.

Corrosion Resistance
Corrosion Resistance

Refinery Vacuum Tower Top Oil Vapor Condensation System

"Sutong's #84 Intalox Rings not only solved our vacuum tower's insufficient vacuum problem but also significantly extended the packing's service life."

New Energy Materials
Solvent Recovery

Lithium Battery NMP Solvent Recovery Tower

"Sutong's ceramic Tellerette rings truly solved our NMP recovery problem!’’

Shipbuilding
Anti-Fouling

Ship Desulfurization Tower (IMO 2020 Compliance Retrofit)

"Sutong's titanium alloy Nutter rings are simply custom-made for ship desulfurization towers! The corrosion problem has been completely solved."

Expert Random Packing Selection

Need the Right Random Packing? Let Us Guide You

Struggling with inefficiency? Our random packing boosts performance and cuts costs, as proven by industry leaders.

Knowledge Empowerment

Transparent insights on packing types and materials.

Systematic Selection Consulting

Analyze your needs for precise recommendations.

Exceptional Product Portfolio

Metal, ceramic, and plastic options for any demand.

Customized Solutions

From design to installation, we maximize efficiency.

Frequently Asked Questions

Your Random Packing Questions Answered

Get clear insights on random packing to optimize your mass transfer processes.

What is an example of random packing?

Random packing refers to geometric particles randomly stacked inside a column. Its primary value lies in enhancing mass transfer efficiency by optimizing gas-liquid distribution. Typical examples include:

Metal Pall:

Rings: With an open area of 35-45%, they are suitable for petrochemical absorption towers (e.g., natural gas desulfurization). Sutong's improved version features a rib-arch anti-nesting design, increasing flow rate by 37% compared to traditional models.

Ceramic Saddle:

Rings: With a porosity of over 70%, they are used in CCUS carbon capture towers. Sutong's micro-groove flow guiding technology reduces CO₂ capture energy consumption to 35kWh/ton.

Sutong's flagship products:

Octa-Quad Inner Arc: Ring: With a curvature radius of over 5mm, it prevents clogging and solves the problem of coal tar solid blockage (maintenance-free for 18 months).
Titanium Alloy NutRing: Resistant to Cl⁻ corrosion for over 5 years, specifically designed for marine desulfurization towers.

What’s the difference between random and structured packing?

Key differences include:

Structure: Random packing uses disordered particles (e.g., Pall rings), while structured packing has ordered designs (e.g., corrugated sheets).
Efficiency: Random packing resists solids buildup due to open designs, while structured packing’s narrow channels are prone to blockage.
Anti-Clogging: Random packing uses disordered particles (e.g., Pall rings), while structured packing has ordered designs (e.g., corrugated sheets).
Applications: Random packing is ideal for coal chemical solids separation and ship desulfurization. Structured packing suits air separation and electronic-grade chemical purification.

Sutong's Innovations:

Eight-Four Inner Arc Ring: Combines structured packing’s low pressure drop (89% reduction) with random packing’s anti-clogging.
Superior to structured packing in high liquid-gas ratio (>14 L/(s·m²)) distillation.

What is random close packing?

Random close packing (RCP) is the densest disordered arrangement of particles under gravity. Key technical aspects:

Porosity:

Traditional Raschig rings have 60-65% porosity, leading to small gas-liquid contact areas and channeling.
Sutong's Ceramic Saddle Rings achieve 70-75% porosity, ensuring uniform distribution and 52% lower pressure drop.
Sutong's High-Flow Rings exceed 78% porosity, improving anti-clogging by 60% and throughput by 40%.

Engineering Control:

Sutong uses graded particle sizes (1-100mm) and micro-groove surfaces (0.1mm channels) to improve porosity uniformity by 40%, eliminating localized channeling.

Industry Note:

Porosity >70% is critical for high-pressure distillation efficiency and energy savings.

What are the disadvantages of random packing?

Traditional issues and Sutong's solutions:

High Pressure Drop: Traditional packing increases energy use by 30% in vacuum tower. Sutong's Eight-Four Inner Arc Ring reduces pressure drop by 89%.
Installation Bias: Uneven flow causes 40% efficiency loss. Sutong's laser alignment + patented support grid ensures 90% flow uniformity.
Poor Anti-Clogging: Blocks in <3 months with >500ppm solids. Sutong's micro-groove flow guidance directs solids away from contact zones.
Corrosion: 316L stainless steel lasts <1 year in Cl⁻ environments. Sutong's Titanium Alloy Nut Ring lasts >5 years.Case Studies:
Coal chemical tower: Traditional packing clogged in 3 months → Sutong's High-Flow Ring lasted 18 months.
Ship desulfurization: Competitor's packing corroded 0.5mm/year → Sutong's titanium packing showed zero corrosion.

Have a Specific Challenge?

Our engineers are ready to help you analyze your process and recommend the optimal solution.