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Sulfolane

Sulfolane Solvent Systems

Aromatics extraction solvent for refinery and petrochemical separation systems.

126-33-0
CAS Number
120.17
Molecular Weight
BTX
Extraction Duty
6+
Control Parameters

Technical Positioning

Sulfolane is positioned as a high-selectivity solvent used in refinery and petrochemical separation processes, especially BTX and aromatics extraction. Positioning focuses on solvent function, extraction performance, selectivity, recovery behavior, thermal stability, and solvent-quality control.

Technical Role

High-selectivity solvent for separating aromatic and non-aromatic hydrocarbons.

Performance Focus

Selectivity, solvent capacity, low volatility, thermal stability and recovery performance.

Control Parameters

Purity, water, acidity, color, chloride, density and degradation products.

Degradation Review

Solvent quality monitoring and degradation-product tracking across the extraction loop.

Extraction Process Flow

Feed

  • Aromatic / non-aromatic feed composition review

Extraction

  • Selectivity, solvent capacity, contact behavior

Aromatics-Rich Extract

  • Separation quality, extract purity

Solvent Recovery

  • Recovery efficiency, degradation control, solvent losses

Technical Reference Matrix

FormulaC4H8O2S — chemical identity
Physical FormClear liquid / low-melting solid depending on temperature — handling and storage planning
Key DutyAromatics extraction / refinery solvent systems — main industrial application
Specification BasisConfirmed by TDS / COA — commercial quality alignment

Sulfolane performance is evaluated through selectivity, stability, recovery behavior and solvent quality.

Where It Is Used

How Selection Works

Sulfolane selection is reviewed against:

Process duty Extraction system Feed composition Aromatics target Solvent recovery condition Water content concern Acidity concern Chloride concern Degradation products Storage and handling condition Replacement or top-up requirement Destination and packaging

Related Technical Pathways

Related Case Study & Customer Story

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Process unit
Extraction duty
Feed / stream context
Recovery system
Replacement or top-up requirement
Current solvent issue if any
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