Activated Bauxite — Gas dehydration

Description

1. Product Overview

Activated Bauxite is a high-performance, naturally occurring dual-action adsorbent engineered specifically for the dehydration of natural gas, compressed air, and other industrial gas streams. Its primary industrial use is the removal of water vapor and trace contaminants in upstream and midstream gas processing, offering a cost-effective alternative to synthetic desiccants like molecular sieves or silica gel. The key value proposition lies in its exceptional balance of high crush strength, elevated water dew point depression, and superior resistance to liquid water carryover—delivering lower operational costs and extended service life. As global energy markets demand greater efficiency in gas treatment, Activated Bauxite is strategically critical for reducing regeneration energy consumption and minimizing unplanned downtime in remote or harsh environments.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Predominantly α-Al₂O₃ (40–45%) + Fe₂O₃, SiO₂, TiO₂, and trace alkaline earth oxides; naturally activated via controlled thermal treatment

• Purity Level: Minimum 85% active alumina equivalent; ≤3% free moisture content as produced

• Physical Form & Color: Spherical or granular; reddish-brown to tan, derived from parent bauxite ore

• Particle Size Distribution: Standard grades: 2–5 mm, 3–6 mm, 4–8 mm (custom cuts available)

• Bulk Density: 800–950 kg/m³ (tightly packed, vessel-loaded)

• Crush Strength: ≥12 kg force (average per granule, ASTM D4179 equivalent)

• Surface Area (BET): 180–240 m²/g

• Loss on Ignition (LOI): ≤7% at 1000°C

• Packaging Options: 25 kg multilayer paper bags; 500 kg FIBC (big bags); 1.5 MT bulk sacks; pneumatic tanker truck unloading

• Shelf Life: 3 years in unopened, dry storage (relative humidity <70%); no performance degradation if kept sealed

3. Core Industrial Applications

• Primary industries: Natural gas processing, petrochemical refining, biogas upgrading, offshore platform dehydration, instrument air systems, and industrial gas manufacturing (N₂, O₂, Ar)

• Operational use cases:

  • Upstream gas wellhead dehydration prior to pipeline transmission (dew point suppression to -40°C)

  • Regenerative dual-tower adsorption systems for cyclic moisture removal

  • Pre-drying before molecular sieve beds (reduces molecular sieve fouling)

  • Emergency liquid water breakthrough protection in amine or glycol units

• Performance advantages vs. alternatives:
  Lower regeneration temperature (180–220°C vs. 250–300°C for molecular sieves) → 15–20% energy savings. Greater resistance to liquid water shock (no cracking/fines generation). Half the cost per kg of zeolite 4A or 13X. Comparable dew point performance up to 30 wt% water loading.

4. Competitive Advantages

• Quality consistency: ISO 9001:2025 certified production; each batch validated via GC-MS headspace moisture analysis and laser particle sizing. SPC-controlled mining and calcination.

• Supply reliability: Multi-continent sourcing of high-grade bauxite + three redundant activation kilns (annual capacity 120,000 MT). 98% on-time-in-full (OTIF) track record.

• Logistics capability: Strategically stocked warehouses — Houston (USA), Rotterdam (NL), Jubail (KSA), Singapore. Short-notice 72-hour dispatch available for emergency orders.

• Price competitiveness: 10–25% lower landed cost than synthetic desiccants; volume-driven pricing with no premium for high-crush grades.

• Sustainability: Non-toxic, naturally abundant ore; fully land-applicable spent material (non-hazardous under EPA and EU CLP). Carbon footprint 60% lower per ton than synthetic zeolites.

• Technical support: Full adsorption isotherm library, vessel loading simulations (ASPEN Adsorption), on-site commissioning support, and quarterly performance audit reports.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ):
  BULK 20 MT (for standard granular grade; trial orders <20 MT available at +8% pricing)

• Loading capacity per container:

  • 20 ft standard dry container: 20 MT net (palletized FIBC or bulk bags)

  • 40 ft high-cube container: 25 MT (max due to weight restriction — IMO/container limits apply)

  • Bulk pneumatic tank trailer (road/rail): 24–28 MT depending on regional axle limits