Methyldiethanolamine — Acid gas removal

Description

Product Overview
Methyldiethanolamine (MDEA) is a high-purity, selective amine solvent engineered for acid gas removal (H₂S and CO₂) in natural gas, refinery, and syngas streams. Its primary industrial use is in gas treating units where bulk CO₂ removal is required alongside deep H₂S scrubbing. The key value proposition is significantly lower regeneration energy, reduced amine circulation rates, and minimal degradation versus primary or secondary amines. Strategically, MDEA enables operators to meet strict pipeline and LNG spec sheets while lowering total cost of ownership (TCO), making it critical for energy transition and low-carbon gas processing.

Key Specifications & Technical Characteristics

• Chemical composition: Methyldiethanolamine (C₅H₁₃NO₂), ≥99% active amine

• Purity grade: Industrial grade, typically 98.5–99.9% (water content ≤1.5%)

• Physical characteristics: Clear, colorless to pale yellow liquid; mild ammoniacal odor; density ~1.04–1.06 g/mL at 20°C; viscosity ~101 cP at 20°C

• Packaging options: IBC totes (1,000 kg), ISO tanks, bulk tanker (flexible bag-in-container), drums (200 L net)

• Shelf life: 24 months when stored in sealed, dry, corrosion-proof containers (recommended 15–40°C, avoid CO₂ absorption)

Core Industrial Applications

• Natural gas processing: Selective H₂S removal to 4 ppmv while slipping 2–10% CO₂ to meet pipeline or LNG feed specifications

• Refinery off-gas units: Treating Claus plant tail gas and FCC off-gas; MDEA minimizes co-absorption of hydrocarbons, reducing valuable product loss

• Syngas & hydrogen plants: Bulk CO₂ capture for hydrogen purification (PSA pretreatment) and urea/ammonia feedstock prep

• Cost & performance advantage: Lower heat duty (2.5–3.0 GJ/ton CO₂ vs. 3.5–4.0 for MEA), lower solvent losses (oxidation/thermal degradation reduced by ~50%), and 20–30% lower circulation rates for same H₂S load

Competitive Advantages

• Quality consistency: ISO 9001:2025 certified; each batch tested for residual chloride (<1 ppm) and iron (<2 ppm) to prevent corrosion and foaming

• Supply reliability: Dual sourcing from dedicated MDEA plants in North America, Middle East, and Asia; 48-hr emergency backup stock

• Logistics capability: Heated tanks, nitrogen-blanketed ISO containers, and door-to-door tracking for guaranteed freeze-protected delivery

• Cost & sustainability: Competitively priced within 5% of Asian index; low-vapor pressure formulation reduces fugitive emissions; full MSDS and HAZOP support included

Commercial & Supply Information

• Minimum order quantity (MOQ): BULK 20MT (20,000 kg) per shipment

• Loading capacity: 20MT per standard ISO container flexitank; 24MT per 20-ft container with IBC totes; 24–26MT per tank truck / railcar