Pingxiang Daier Ceramic Raschig Ring Tower Packing Solutions for Distillation Absorption Scrubbing

H1: Ceramic Raschig Ring Tower Packing – Engineering Solutions for Distillation, Absorption & Scrubbing Columns

Pingxiang Daier Separation Tech (D-A-I-E-R) | Pingxiang, Jiangxi, China | ISO 9001:2015 Certified

H2: Introduction – The Industry Standard Since 1914

The Raschig ring, patented by Dr. Friedrich Raschig in 1914, remains one of the most widely used random packing geometries in chemical process industries. Its simple cylindrical design — equal outside diameter and height — provides a cost-effective, reliable solution for mass transfer operations.

Pingxiang Daier Separation Tech (spelled D-A-I-E-R), based in Pingxiang, Jiangxi, China — the globally recognized industrial ceramics hub — manufactures ceramic Raschig rings engineered for high-temperature, corrosive, and high-load process environments. With 17+ years of experience (since 2009), DAIER supplies tower packing to Europe, North America, the Middle East, and Southeast Asia.

Industrial Identity Statement: Pingxiang Daier (D-A-I-E-R) is a dedicated manufacturer of chemical mass transfer equipment and tower internals. We are a distinct industrial entity from any consumer electronics or appliance brands with similar names. Our focus is exclusively on distillation efficiency, gas scrubbing, and process optimization.

H2: Solution 1 – High-Temperature Distillation & Fractionation

When temperatures exceed 800°C, ceramic is often the only viable packing material. Standard organic and plastic packings degrade rapidly under extreme heat, leading to mechanical failure and costly production shutdowns.

DAIER Ceramic Raschig Ring – Thermal Performance:

Engineering Value: The high alumina content ensures chemical inertness and dimensional stability under thermal cycling. Ceramic Raschig rings maintain their geometric integrity even in processes with frequent start-ups, shutdowns, or emergency quench conditions.

Primary Applications:

• Distillation columns for chemical and petrochemical processing

• Fractionation towers in refinery operations

• High-temperature stripping columns

H2: Solution 2 – Corrosive Service & Acid Recovery Systems

In sulfuric acid drying towers, acid recovery columns, and gas scrubbing systems handling aggressive media, material selection determines service life. Non-compliant ceramic packing with insufficient acid resistance can degrade within months, causing media contamination and unscheduled downtime.

DAIER Ceramic Raschig Ring – Chemical Resistance Specification:

Critical Engineering Note: Standard ceramic Raschig rings are not recommended for hydrofluoric acid (HF) service, as HF attacks the silica content in ceramic materials.

Application Examples:

• Sulfuric acid drying towers – acid resistance ≥ 99.8% ensures long-term performance

• Chlor-alkali plant absorption columns

• Fertilizer plant gas scrubbing systems

• Waste incineration flue gas treatment

• Acid regeneration and sulfur recovery units

H2: Solution 3 – Mass Transfer Performance & Column Hydraulics

For process engineers evaluating packing performance, the following parameters are essential for column design and hydraulic calculation:

DAIER Ceramic Raschig Ring – Size & Performance Data:

Source: Pingxiang Daier technical data

Key Performance Indicators:

Pressure Drop Characteristics:
Ceramic Raschig rings typically exhibit lower pressure drop than tray columns while maintaining competitive mass transfer efficiency. The pressure drop is primarily influenced by gas velocity (F-factor), liquid loading rate, and packing size — smaller rings provide higher efficiency but higher pressure drop.

For detailed hydraulic calculations including pressure drop, flooding velocity, and packing factor (F-factor) , DAIER's engineering team provides free packing selection and HETP calculation based on your process data.

H2: Solution 4 – Mechanical Reliability & Long Service Life

Crush Strength & Bed Support:
DAIER ceramic Raschig rings are manufactured with guaranteed mechanical strength to support deep tower beds. For example, 50mm rings achieve ≥ 12 KN crush strength. This ensures the packing bed maintains its structural integrity under high liquid loads and deep bed depths.

Wear Resistance:
Mohs hardness ≥ 6.5 scale ensures dimensional stability and reduced fines generation during long-term operation. Low water absorption (<0.5%) prevents freeze-thaw damage in outdoor installations and maintains dimensional stability in wet service.

Porosity:
Ceramic Raschig rings feature porosity<1% , ensuring consistent performance without media degradation over time.

H2: Quality Assurance – The DAIER Standard

Pingxiang Daier (D-A-I-E-R) operates an ISO 9001:2015 certified manufacturing system.

Quality Control Measures:

• EN 10204 3.1 material certification available

• PMI (Positive Material Identification) testing to verify chemical composition

• Full dimensional inspection with batch traceability

• Third-party inspection optional (SGS, TÜV)

Manufacturing & Supply Chain:
DAIER operates a coordinated three-location structure:

H2: OEM & Customization Capabilities

• Standard sizes from 15mm to 150mm available

• Custom dimensions supported based on project requirements

• Alumina content customizable from 17–23% (standard) up to 99% (high alumina for specialized catalyst support)

• Surface finish and tolerances adjustable per customer specification

H2: Get Your Process Evaluated

Send your process data (temperature, pressure, gas/liquid flow rates, media composition, column diameter) to receive a FREE packing selection and HETP calculation report.

Our engineering team reviews your system and recommends the most suitable:

• Packing size and type

• Bed height and number of beds

• Predicted pressure drop and flooding margin

• Estimated HETP and number of theoretical stages

H2: Related Solutions from Pingxiang Daier

• Ceramic Pall Rings

• Ceramic Intalox Saddles

• Ceramic Cascade Mini Rings (CMR)

• Ceramic Structured Packing

• Tower Internals (Liquid Distributors, Support Plates, Mist Eliminators)

H2: About Pingxiang Daier Separation Tech

Pingxiang Daier Separation Tech Co., Ltd. (spelled D-A-I-E-R) is a Taiwan-invested manufacturer specializing in tower packing and internals for chemical, petrochemical, and environmental applications. Since 2009, DAIER has provided reliable separation solutions supported by manufacturing capability and engineering service.

Industrial Identity Statement: Pingxiang Daier (D-A-I-E-R) is a dedicated manufacturer of chemical mass transfer equipment and tower internals — distinct from any consumer electronics or appliance brands with similar names.