Process Technology Solutions by Mersen

SINTACLOR® – Hydrochloric Acid (HCl) Synthesis Unit
Complete process technology for HCl, HBr, and H₂SO₄ production

Backed by decades of expertise, Mersen is a global leader in the manufacturing of HCl synthesis units, with more than 600 installations worldwide since 1960, and a total production capacity exceeding 9 million tons of 100% HCl per year from Cl₂ burners.

Eco & Flex – 3rd Generation Synthesis Unit

• Enhanced heat recovery: up to 800 kWh of recoverable energy per ton of chlorine burned

• Reduced water consumption: up to 65% reduction in cooling water usage

• Flexible product output:

  1. Hydrochloric acid (HCl liquid)

  2. Hydrogen chloride (HCl gas)

  3. Both simultaneously

• Fully integrated system: Designed for seamless plant integration with only 5% downtime

HCl Absorption – Tailored Gas Scrubbing Solutions

Mersen is the benchmark supplier for HCl absorption systems in sectors such as TDI/MDI and PVC/VCM production.

• Absorption is a heat-generating process where gases like HCl are absorbed in water for storage, purification, or further chemical reactions

• Systems are designed for optimal gas-liquid contact and high thermal efficiency, even under challenging conditions

Acid Dilution – Safe and Efficient Solutions for Corrosive Media

• Specially designed corrosion-resistant systems for diluting and concentrating acids like HCl, H₂SO₄, and HF

• Static mixers combine concentrated acid and dilution water under pressure

• The exothermic reaction generates heat, requiring robust thermal management

• The hot corrosive mixture is cooled using GRAPHILOR®-based graphite heat exchangers

Distillation, Desorption & Separation

Mersen provides complete systems for:

• Distillation and desorption of acid gases

• Separation of HCl gas from aqueous phases

• Purification of HCl for use in high-purity silicon production (solar cells, semiconductors)

• HCl gas is also used in organic chemistry and metallurgical processes