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MES Production Plant
Green Surfactant · Excellent Calcium Soap Dispersibility
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Fatty Acid Methyl Ester Sulfonate (MES) Production Plant

Green Surfactant · Excellent Calcium Soap Dispersibility
Technology & Process

Advanced Fatty Acid Methyl Ester Sulfonation Process

Fatty Acid Methyl Ester Sulfonate (MES) is a green anionic surfactant derived from natural oils and fats, featuring excellent calcium soap dispersibility, low irritation, and good biodegradability. Nanjing Qino Automatic Control Equipment Co., Ltd. possesses mature technology in the design and manufacturing of MES production plants, employing advanced sulfonation processes and optimized post-treatment technology to ensure stable product quality.
Our MES production plant utilizes SO₃ Film Sulfonation Technology, combined with proprietary bleaching, neutralization, and blending processes, to produce high-quality MES products with high Active Matter Content, light Color, and excellent calcium soap dispersibility.
Core Process Flow

Sulfonation Reaction System

• Utilizes a new multi-tube falling film sulfonation reactor.
• Sulfonation reaction between fatty acid methyl ester and SO₃.
• Strict temperature control to prevent oxidation and side reactions.
• Secondary protective air technology to improve product quality.
• Key Control: Precise control of SO₃/fatty acid methyl ester molar ratio.

Aging System

• Sulfonation product enters aging tank for maturation.
• Controlled aging temperature and time.
• Promotes complete reaction, increasing Active Matter Content.
• Aged product exhibits good stability.

Bleaching System (Critical Process)

• Key step for MES product Color control.
• Employs oxidative or reductive bleaching process.
• Controlled bleaching temperature and time.
• Ensures light product Color, meeting standards.

Neutralization System

• Continuous neutralization process.
• NaOH solution neutralizes sulfonic acid.
• Controlled neutralization pH Value.
• Can produce liquid MES or spray-dried powder.

Post-Treatment System

• Degassing treatment.
• Filtration to remove impurities.
• Adjustment of Active Matter Content.
• Spray drying to powder (powdered MES).
Technical Features & Advantages
Feature
Qino Technology
Description
Sulfonation Technology
Multi-tube falling film sulfonation
Uniform reaction, stable product quality
Secondary Protective Air
Proprietary technology
Increases SO₃ gas concentration, reduces oxidation
Bleaching Process
Proprietary technology
Light product Color, <100 Klett
Neutralization Process
Continuous neutralization
Stable pH, uniform product quality
Calcium Soap Dispersibility
Excellent
Strong hard water resistance
Product Form
Liquid/Powder
Customer-selectable based on requirements
Equipment Configuration Highlights

Sulfonation Reactor

New multi-tube falling film design, secondary protective air technology.

Bleaching System

Efficient bleaching, good Color control.

Post-Treatment System

Degassing, filtration, blending.

Aging Tank

With agitation jacket, precise temperature
control.

Neutralization System

Continuous neutralization, automatic pH control.

Spray Drying Tower

(optional): Powdered MES production.
Applications & Markets

The Ideal Choice For Green Detergents

MES (Fatty Acid Methyl Ester Sulfonate) is a green anionic surfactant derived from natural oils and fats (palm oil, coconut oil, etc.), featuring excellent calcium soap dispersibility, low irritation, good biodegradability, and environmental friendliness. It is widely used in detergents, personal care, and other fields, serving as an eco-friendly alternative to traditional surfactants.
Main Application Areas
Primary-Market • Phosphate-Free Laundry Powder: Primary active ingredient, excellent calcium soap dispersibility.
• Concentrated Laundry Powder: High Active Matter Content, strong detergency.
• Liquid Detergents: Good compatibility, excellent low-temperature solubility.
• Dishwashing Detergents: Efficient stain removal, easy rinsing.
Detergent Industry
Personal-Care-Industr • Bar Soap: Gentle cleansing, low irritation.
• Body Wash: Good skin affinity.
• Facial Cleanser: Gentle, non-tightening.
Personal Care Industry
Market Advantages

Green Raw Materials

Derived from natural oils and fats, renewable.

Calcium Soap Dispersibility

Excellent hard water resistance.

Low Irritation

Gentle on skin.

Biodegradability

Good biodegradability.

Environmental Friendliness

Phosphate-free, nitrogen-free, eco-friendly.

Cost Advantage

Wide raw material sources, controllable costs.
Raw Materials & Specifications

Natural Oil Raw Materials Ensure Green MES

Our MES production plant is designed to process natural oil methyl ester raw materials, ensuring products meet international standards through advanced sulfonation and post-treatment processes, with high Active Matter Content, light Color, and excellent calcium soap dispersibility.
Raw Material Specifications
Fatty Acid Methyl Ester
Parameter
Specification Requirement
Carbon Chain Distribution
C₁₂-C₁₈ (coconut oil/palm oil methyl ester)
Acid Value
≤0.5 mgKOH/g
Moisture
≤0.1%
Color
≤50 APHA
Appearance
Colorless to pale yellow liquid
Other Raw Materials
Material
Purpose
Specification
Liquid Alkali (NaOH)
Neutralizing Agent
32-50% Concentration
Bleaching Agent
Color control
Food-grade or industrial-grade
Process Water
Neutralization and blending
Deionized Water
SO₃
Sulfating Agent
≥99.5% Purity
Product Quality Specifications
MES Liquid Product Specification
Indicator
Specification
Description
Active Matter Content
≥30% or ≥35%
Based on Customer requirements
pH Value (1% solution)
7.0-9.0
Neutral to weakly alkaline
Color (Klett)
≤100
Light-colored product
Calcium Soap Dispersing Power
≥200
Excellent
Biodegradability
>90%
28-day degradation rate
Appearance
Pale yellow transparent liquid
No mechanical impurities
MES Powder Product Specification
Indicator
Specification
Active Matter Content
≥80%
pH Value (1% solution)
7.0-9.0
Color (Klett)
≤100
Moisture
≤5%
Appearance
White or pale yellow powder
Capacity Specifications
Model
Capacity (tons/year)
Floor Area (㎡)
Power Requirement (kW)
Q-MES-1000
1,000
500-600
200-300
Q-MES-3000
3,000
800-1,000
350-500
Q-MES-5000
5,000
1,200-1,500
600-800
Custom
5,000+
Custom Design
Custom Design
Utility Requirements (Based On 3 Tons/Hour Example)
Utility
Consumption
Specification
Electricity
350-500 kW
440V/60Hz
Cooling Water
80-100 m³/hour
32°C Inlet, 40°C Outlet
Compressed Air
60-80 Nm³/hour
0.6 MPa, Instrument Grade
Nitrogen
40-60 Nm³/hour
99.9% Purity
Steam
Self-sufficient (Waste Heat Recovery)
0.4-0.6 MPa Saturated Steam
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 Email: njqino@gmail.com 
 Add: Building 28, Botong Innovation Industrial Park, No. 2 Qiancheng Road, Liuhe District, Nanjing, Jiangsu Province, China

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