Customized Gas-Liquid Distributor for Tower Internals

Product Description

Product Description

SS316 Liquid Distributors 

1. Function & Importance

Primary Role: Ensures uniform liquid distribution over packing surfaces to maximize mass transfer efficiency in distillation, absorption, and extraction processes.
Key Benefits:Reduces channel flow and wall flow, minimizing tower height/diameter and construction costs.
Enhances contact between gas/liquid phases, critical for separation efficiency.

2.Design Specifications
Distribution Density: ≥100 points/m² to ensure uniformity.
Flow Non-Uniformity: <5% for optimal performance.
Gas Flow Area: ≥25% to minimize pressure drop.
Material Selection:Stainless Steel (304/316): General corrosion resistance.
Ceramics: Withstand ≤800°C (e.g., high-temperature distillation).
PTFE: For highly corrosive media (e.g., HCl absorption).

Integration with Packing Systems

Redistribution Requirements:Models with integrated liquid collection require interlayer redistribution devices to maintain uniformity in tall towers.
Critical for packed beds exceeding 3-5 meters to avoid maldistribution.

Industry Applications
Petrochemical: Crude oil distillation, amine scrubbing.
Pharma: Solvent recovery in vacuum columns.
Environmental: VOC absorption in scrubbers.

Specification

Structural Types & Applications

Type	Pros	Cons	Typical Use Cases
Tubular	Low resistance	Prone to clogging	Medium-low liquid loads
Trough	Anti-fouling, handles high loads	Larger footprint	High loads, viscous liquids (e.g., petrochemicals)
Disc	Integrated gas-liquid separation	Higher cost	Space-limited conditions (elasticity 10:1)

Structured Technical Explanation of Liquid Distributors in Packed Towers

1. Core Functions of Liquid Distributors
Uniform Distribution: Evenly disperses liquid at the top or intermediate heights of packing to:Maximize effective interfacial area for mass/heat transfer.
Minimize channel flow, bias flow, and wall flow (non-uniform flow patterns).
Redistribution: Corrects liquid maldistribution in tall towers to prevent amplification/end effects (where flow irregularities worsen down the column).
 
2. Impact of Poor Distribution (Experimental Findings)
Flow Phenomena:Channel Flow: Liquid concentrates in narrow paths, reducing contact efficiency.
Bias Flow: Uneven distribution across the packing cross-section.
Wall Flow: Liquid adheres to tower walls, bypassing the packing.
Consequences:Higher HETP (Height Equivalent to a Theoretical Plate), increasing tower height/diameter.
Reduced separation efficiency, raising operational costs (e.g., energy, reflux ratios).

3. Design Principles to Mitigate Effects
Initial Distributor Design:Distribution Density: ≥100 points/m² to ensure uniformity.
Flow Non-Uniformity: <5% (critical for high-efficiency packing like structured grids).
Redistributor Placement:Required every 3–5 bed diameters (or 5–10 meters) to reset maldistribution.
Integrated gas-liquid separation in disc/trough types (e.g., Sulzer's Mellapak™ redistributors).
 
4. Economic & Operational Benefits
Cost Reduction:Lower tower height/diameter due to improved efficiency (reduces material/construction costs).
Energy savings from optimized flow (e.g., reduced reflux in distillation).
Material Selection:Stainless Steel (316L): For corrosive services (e.g., amine scrubbers).
Ceramics/PTFE: Extreme temperatures/corrosion (e.g., HCl absorption).
 
5. Industry Applications
Distillation: Crude oil fractionation, solvent recovery.
Absorption: CO2 capture, VOC removal.
Pharmaceuticals: High-purity separations in vacuum columns.

Company Profile

Pingxiang Rongjian Environmental Protection Chemical Packing Co., Ltd.

Innovative Solutions for Environmental & Industrial Applications
Headquarters: Xiangdong District Industrial Park, Pingxiang City, Jiangxi Province, China
 
Core Capabilities
 Advanced Manufacturing: Custom-designed towers and systems in ceramic, metal, and plastic materials.
Comprehensive Product Portfolio: 200+ specifications including:
• Ceramic/metal/plastic packing materials
• Molecular sieves & activated alumina
• Catalysts & petrochemical additives
• Activated carbon & eco-friendly filtration media
Turnkey Services: Full-scale pollution control and wastewater treatment projects.
Corporate Strengths
  ISO 9001 Certified - Guaranteed quality management system compliance.
 300+ Workforce - Including 100+ specialized engineers and technicians.
30-Acre Production Base - Integrated R&D and manufacturing facilities.
 
Awards & Innovations
 National Science & Technology Achievement Award
Provincial Gold Medal & Famous Brand Product
17 Patented Technologies - Protecting proprietary advancements.

Packing & Delivery

FAQ