Applications of Diethylene Glycol Amine in Industrial Manufacturing

As an established producer, we supply Diethylene Glycol Amine (DEGA) to a focused range of sectors, where its specialized properties serve targeted industrial functions. The following sections outline its concrete downstream use cases, providing process-specific information on compliance, dosage, integration, and finished goods—directly reflecting industry practice and standards upheld by downstream manufacturers.

1. Gas Sweetening for Natural Gas Processing

Natural gas processors employ DEGA as a selective absorbent to remove acidic components such as hydrogen sulfide (H₂S) and carbon dioxide (CO₂) in amine gas treating units. DEGA’s molecular structure enables lower corrosion rates and reduced foam, especially in medium-pressure applications, directly impacting plant operational efficiency and gas purity targets. Precise compositional control ensures processors meet pipeline and environmental specifications according to regional standards.

Industry compliance standards

• API Standard 941
• U.S. EPA’s New Source Performance Standards (NSPS) Subpart OOOOa
• EN 1160: Gas infrastructure standards for gas quality
• ISO 9001:2015 (process quality management)

Typical usage ratio

• 30–50 wt% aqueous solution depending on acid gas concentration and contactor design; formulation adjusted by inlet acid gas load and ambient conditions.

Downstream process integration

• Injected into absorber towers after dilution and heat balancing; circulates between absorber and regenerator as the core amine loop fluid.

Final product types

• Treated natural gas (pipeline-quality)
• Elemental sulfur (from downstream Claus units)
• Dehydrated hydrocarbon gas streams

2. Fabric Softener and Antistatic Agent Production

DEGA is incorporated in the synthesis of quaternary ammonium compounds used in textile softeners and antistatic agents. The chemical’s multiple functional groups facilitate cationic surfactant formation, directly impacting softness, rewetting properties, and static dissipation for both home and industrial laundering. Stringent raw material identity and residual trace standards govern its use within formulations designed for direct fabric contact.

Industry compliance standards

• OEKO-TEX Standard 100 (textile chemical safety)
• REACH Regulation (EC) No 1907/2006 ANNEX XVII
• CNS 12910 (Surfactant requirements, Taiwan)
• ISO 14001:2015 (environmental management for formulation plants)

Typical usage ratio

• 1–5 wt% in cationic surfactant intermediate synthesis; the balance is adjusted post-quaternization for the finished additive property targets.

Downstream process integration

• Reacted with fatty acids and alkylating agents during batch or continuous surfactant production, preceding purification or finishing steps.

Final product types

• Domestic and industrial fabric softeners
• Antistatic agents for textile finishing
• Softener bases for institutional laundry

3. Surfactant Intermediate for Oilfield Chemicals

Petroleum service companies utilize DEGA for manufacturing niche surfactant intermediates, particularly for oilfield corrosion inhibitors and demulsifiers. The compound’s amine and ether functionalities enable the tailored modification of surface activity under high saline and multiphase flow conditions, facilitating stable emulsion breaking in oil extraction and transmission systems. Regulatory oversight applies to production sites handling both raw and formulated chemicals.

Industry compliance standards

• OECD Guidelines for the Testing of Chemicals (biodegradability, aquatic toxicity)
• API Technical Report 939-D (corrosion-inhibitor compounding)
• Saudi Aramco Engineering Standard SAES-A-004 (chemical formulation controls)
• ISO 14040 (Life cycle assessment for oilfield chemicals)

Typical usage ratio

• 10–25 mol% per reaction batch in amidoamine and etheramine precursor synthesis—optimized for hydrocarbon-compatibility and thermal stability.

Downstream process integration

• Charged into alkoxylation or amidation reactors; post-reacted intermediates serve as core inputs for oil-soluble inhibitor and demulsifier formulation.

Final product types

• Oilfield demulsifiers (dehydrating agents)
• Water/oil corrosion inhibitors
• Production treating chemicals for pipelines and reservoirs

4. Epoxy Curing Agent Production

Manufacturers of epoxy formulations apply DEGA in synthesizing specific curing agents intended for high-flexibility and low-color epoxy adhesive and coating systems. The compound’s moderate reactivity offers formulators a reliable route to low-chloride and microbubble-resistant end products, a feature valued in electronics and optoelectronics encapsulation. Regulatory schemes frame material traceability and absence of undesirable side products.

Industry compliance standards

• RoHS Directive 2011/65/EU (lead-free electronics)
• UL 94 (flammability of plastic materials, for electronics potting)
• IEC 61249-2-21 (halogen-free requirements in PCB manufacture)
• ISO 9001:2015 (curing agent manufacturing line control)

Typical usage ratio

• 5–15 wt% for polyamine or alkanolamine co-curing systems; adjusted to target specific glass transition temperatures and modulus profiles.

Downstream process integration

• Reacted with epoxy resin at the pre-polymerization stage; precise mixing and temperature control critical for batch homogeneity.

Final product types

• Electronics-grade epoxy adhesives
• Clear potting compounds
• Flexible industrial floor coatings

5. Gas Dehydration for Industrial Refrigeration

DEGA is used in refrigeration gas dehydration units, particularly for natural gas liquids (NGL) and industrial refrigeration plant feedstocks. Its affinity for water vapor, coupled with low degradation rates at moderate temperatures, improves dew point control versus traditional glycols within systems designed for stringent moisture specifications. Regular quality audits govern its handling and blend readiness in accordance with downstream compressor protection requirements.

Industry compliance standards

• ASME B31.3 (Process piping standards for chemical plants)
• NFPA 70 (electrical compliance in refrigeration plants)
• EN 378: Refrigerating systems and heat pumps – Safety and environmental requirements
• ISO 8573-1 (Compressed air purity classes, for downstream process air requirements)

Typical usage ratio

• 45–65 wt% in water for contactor units; concentration tuned to system pressure and gas stream humidity.

Downstream process integration

• Circulated as absorbent in dehydration contactors; post-use regeneration managed via controlled temperature stripping columns.

Final product types

• Moisture-free NGL streams
• Dehydrated refrigerant feedstocks
• Dew point–controlled process gas for cold storage