Description

N-Methyl Diethanolamine (MDEA) - High-Purity Solvent for Gas Treating

N-Methyl Diethanolamine (MDEA) is a tertiary alkanolamine widely used in the gas processing industry as a highly selective absorbent for acid gases, primarily hydrogen sulfide (H₂S) and carbon dioxide (CO₂). Its unique properties make it a superior choice for various applications compared to other alkanolamines like DEA and MEA.

Key Features & Benefits:

• High Selectivity for H₂S: MDEA exhibits significantly higher selectivity for H₂S over CO₂ compared to other alkanolamines. This allows for the efficient removal of H₂S while minimizing CO₂ absorption, resulting in a purer product stream and reduced energy consumption in the regeneration process.
• Low Energy Consumption: The regeneration of MDEA requires less energy compared to other alkanolamines due to its lower heat of reaction and lower vapor pressure. This translates to significant cost savings in operating expenses.
• High Capacity: MDEA solutions offer a relatively high capacity for acid gas absorption, meaning less solvent is needed to achieve the desired level of purification. This can lead to smaller equipment footprints and reduced capital costs.
• Corrosion Resistance: While proper handling and material selection are crucial, MDEA solutions generally exhibit good corrosion resistance compared to other alkanolamines, especially at lower temperatures.
• Thermal Stability: MDEA demonstrates excellent thermal stability, minimizing solvent degradation during the regeneration process and extending the life of the solvent.

Applications:

• Natural Gas Sweetening: Efficiently removes H₂S and CO₂ from natural gas streams to meet pipeline specifications and environmental regulations.
• Refinery Gas Treating: Purifies refinery gases to remove corrosive and environmentally harmful components.
• Syngas Purification: Removes acid gases from syngas (synthesis gas) produced from coal gasification or other processes.
• Industrial Gas Purification: Removes acid gases from various industrial gas streams to enhance product purity.
• Acid Gas Recovery: Can be utilized in processes designed to recover H₂S and CO₂ for further processing or utilization.

Specifications:

• Chemical Formula: C₅H₁₃NO₂
• Molecular Weight: 119.16 g/mol
• Appearance: Clear, colorless to slightly yellow liquid
• Purity: Available in various grades, typically >99%
• Density: Approximately 1.02 g/mL (at 25°C)
• Solubility: Miscible with water

Handling and Safety:

MDEA is a corrosive substance. Appropriate personal protective equipment (PPE), including gloves, eye protection, and respirators, should be worn when handling MDEA. Refer to the Safety Data Sheet (SDS) for detailed information on safe handling, storage, and disposal procedures.

Packaging:

Available in various packaging options to suit customer needs, including drums, IBC totes, and bulk tankers.

Note: The specific properties and specifications may vary depending on the grade and manufacturer. Please consult the product datasheet for the specific product you are interested in. We recommend contacting us for further assistance in selecting the right grade of MDEA for your specific application requirements.