Sulphuric Acid Concentration System

Sulphuric Acid Concentration System

The Sulphuric Acid Concentration System is an engineered process unit designed to upgrade dilute sulphuric acid streams into high-concentration sulphuric acid suitable for reuse in industrial operations. These systems are widely used where acid recovery, reuse, and cost optimization are critical.

Goel’s system is specifically developed to concentrate ~50% sulphuric acid up to ~98% concentration using controlled thermal evaporation and separation techniques. The design ensures continuous, stable operation, high reliability, and long service life while handling one of the most corrosive industrial acids.

The system is suitable for continuous industrial duty, pilot plants, and chemical manufacturing units requiring consistent acid quality with minimal downtime.

Process Description

The concentration process involves controlled evaporation of water from dilute sulphuric acid under carefully managed temperature and circulation conditions:

• Dilute sulphuric acid feed (~50%) enters the evaporator section
• Heat is supplied using steam or thermal fluid
• Water is selectively evaporated while maintaining acid stability
• Concentrated acid is collected at up to ~98% strength
• Vapors are safely condensed or vented through corrosion-resistant systems
• Circulation and purge arrangements minimize fouling and scaling

Depending on capacity and plant requirement, the system may utilize multiple-effect evaporation or forced-circulation evaporator design.

Technical Highlights

• Input acid concentration: ~50% sulphuric acid (w/w)
• Output concentration: up to ~98% sulphuric acid
• Operating mode: continuous evaporation
• Evaporator design: multiple-effect / forced circulation
• Heating medium: steam or thermal oil
• Construction materials: acid-resistant and corrosion-resistant alloys / linings
• Capacity: modular sizing based on client feed rate
• Maintenance philosophy: easy access, low downtime, simplified cleaning

Final heat duty, flow rates, and material specifications are customized as per process conditions and confirmed during engineering.

Key Features

• High corrosion resistance for long-term operation
• Stable concentration control for consistent acid quality
• Low fouling design using controlled heat flux and circulation
• Energy-efficient evaporation configuration
• Modular and scalable design
• Designed for continuous industrial use

Advantages

• Reduces raw acid consumption by enabling acid reuse
• Minimizes effluent generation
• Improves overall plant economics
• Ensures safe handling of high-strength acid
• Supports sustainable and closed-loop operations

Applications

• Chemical manufacturing plants
• Fertilizer and agrochemical industries
• Acid recovery and recycling units
• Metal processing and pickling plants
• Battery and specialty chemical production
• Effluent and waste acid treatment systems

Why Choose Our Sulphuric Acid Concentration System?

• Process-oriented engineering, not standard equipment
• Custom-built systems based on actual operating conditions
• Industrial-grade safety and reliability
• Proven designs suitable for Indian operating environments
• Integration support with existing acid handling systems

FAQs – Sulphuric Acid Concentration System

Q1. Can the system handle continuous 24/7 operation?
Yes, the system is designed for continuous industrial operation with stable performance.

Q2. Is the system customizable for different inlet acid strengths?
Yes. Feed concentration, capacity, and output strength can be engineered as per client requirement.

Q3. How is fouling controlled in the evaporator?
Through forced circulation, controlled heat flux, and purge/blow-off arrangements.

Q4. Is this suitable for acid recovery applications?
Absolutely. The system is ideal for acid recovery, reuse, and effluent reduction.