The plant produces dry HCl gas by the process of distillation of 30% hydrochloric acid solution as a continuous process. The feed 30% HCl acid is preheated by the outgoing hot bottom product in the heat exchanger and fed to the azeotropic distillation column by the pump in a controlled rate. The heat energy is supplied by steam to the thermosiphon reboiler at bottom of the column.

 

The bottom product from the plant is constant boiling approx 21% acid solution which is cooled by the cold 30% acid feed solution prior to discharge.

 

The top product HCl gas is dried in the Drying Unit using Sulfuric acid / suitable dehydrating agent. The product HCl gas is anhydrous.

 

All the wetted parts of the system are fabricated from corrosion resistant materials (Glass and Graphite).

The plant produces dry HCl gas by the process of distillation of 30% hydrochloric acid with concentrated sulphuric acid as entrainer. Feed Sulphuric acid is fed from top to the packed column and feed 30% hydrochloric acid is also fed to the column. Both the acid flow concurrently. HCl gas is generated by mixing of the two liquid acid feeds. The top portion of the packed column acts as a drying zone for the product HCl gas.

 

Condenser / Cooler is provided on top of a column to cool the outgoing HCl gas. Suitable drying section removes final traces of moisture from outgoing HCl gas. The bottom product from the plant is spent Sulphuric acid with 70% strength (with 1-1.5% HCl content). It is cooled in a heat exchanger prior to discharge.

 

All the wetted parts of the system are fabricated from corrosion resistant materials (Glass and PTFE).

The plant produces dry HCl gas by distillation of 30% hydrochloric acid with Calcium Chloride solution as entrainer. Preheated 30% HCl acid is fed to the azeotropic distillation column. Co-current feed of concentrated Calcium Chloride solution is also fed to the distillation column.
HCl gas is generated by mixing of both liquids and rises in the column. The top product HCl gas is dried in the Drying Unit using sulfuric acid / suitable dehydrating agent.
Thermosiphon reboiler provides heat energy for the distillation process using steam. The bottom product from the column is dilute Calcium Chloride solution with dissolved HCl content.
The dilute CaCl solution is concentrated in the evaporator by 2 steam and the re-concentrated CaCl solution is recycled to 2 the distillation column by the pump. The vapor from the evaporation process is condensed and consists of water and approx 1% HCl.
All the wetted parts of the system are fabricated from corrosion resistant materials (Glass and Graphite etc.)

Salient Features

• Negligible Effluent
• Low Operating Cost
• Zero Discharge
• Highest Turndown ratio

Commercial hydrochloric acid is available in the market as 30% aqueous solution and is widely used in industry in large quantities. But for certain applications e.g. in bulk drugpharmaceutical industry HCI gas is required in anhydrous state for critical reactions where moisture cannot be tolerated. Such users generate anhydrous HCI from commercial grade for their captive consumption. Several methods have been adopted but generation through SULPHURIC ACID ROUTE is the most reliable and handy technique. SALIENT FEATURES:1. Operational reliability the unit can be startedstopped in seconds.2.Compact and continuous unit all operations viz. drying, mixing, gas generation and cooling achieved in same unit.3.Available in wide range capacities from 5kg to 200kghr of dry HCl.4.Except cooling water no other utility e.g. steam, chilled water etc are required.5.Anhydrous gas.6.Ease of installation.7.Capable of operating from 25-120%.8.Negligible pressure drop.9.High efficiency 99%. RAW MATERIAL REQUIREMENT:The indicative requirements for 20 kghr HCI gas generator are given below:1.30% HCL 702.98% H2SO4 -170

The plant produces dry HCl gas by the process of distillation of 30% hydrochloric acid solution as a continuous process. The feed 30% HCl acid is preheated by the outgoing hot bottom product in the heat exchanger and fed to the azeotropic distillation column by the pump in a controlled rate. The heat energy is supplied by steam to the thermosiphon reboiler at bottom of the column.

 

The bottom product from the plant is constant boiling approx 21% acid solution which is cooled by the cold 30% acid feed solution prior to discharge.

 

The top product HCl gas is dried in the Drying Unit using Sulfuric acid / suitable dehydrating agent. The product HCl gas is anhydrous.

 

All the wetted parts of the system are fabricated from corrosion resistant materials (Glass and Graphite).

The plant produces dry HCl gas by the process of distillation of 30% hydrochloric acid with concentrated sulphuric acid as entrainer. Feed Sulphuric acid is fed from top to the packed column and feed 30% hydrochloric acid is also fed to the column. Both the acid flow concurrently. HCl gas is generated by mixing of the two liquid acid feeds. The top portion of the packed column acts as a drying zone for the product HCl gas.

 

Condenser / Cooler is provided on top of a column to cool the outgoing HCl gas. Suitable drying section removes final traces of moisture from outgoing HCl gas. The bottom product from the plant is spent Sulphuric acid with 70% strength (with 1-1.5% HCl content). It is cooled in a heat exchanger prior to discharge.

 

All the wetted parts of the system are fabricated from corrosion resistant materials (Glass and PTFE).

The plant produces dry HCl gas by distillation of 30% hydrochloric acid with Calcium Chloride solution as entrainer. Preheated 30% HCl acid is fed to the azeotropic distillation column. Co-current feed of concentrated Calcium Chloride solution is also fed to the distillation column.
HCl gas is generated by mixing of both liquids and rises in the column. The top product HCl gas is dried in the Drying Unit using sulfuric acid / suitable dehydrating agent.
Thermosiphon reboiler provides heat energy for the distillation process using steam. The bottom product from the column is dilute Calcium Chloride solution with dissolved HCl content.
The dilute CaCl solution is concentrated in the evaporator by 2 steam and the re-concentrated CaCl solution is recycled to 2 the distillation column by the pump. The vapor from the evaporation process is condensed and consists of water and approx 1% HCl.
All the wetted parts of the system are fabricated from corrosion resistant materials (Glass and Graphite etc.)

Salient Features

• Negligible Effluent
• Low Operating Cost
• Zero Discharge
• Highest Turndown ratio

Commercial hydrochloric acid is available in the market as 30% aqueous solution and is widely used in industry in large quantities. But for certain applications e.g. in bulk drugpharmaceutical industry HCI gas is required in anhydrous state for critical reactions where moisture cannot be tolerated. Such users generate anhydrous HCI from commercial grade for their captive consumption. Several methods have been adopted but generation through SULPHURIC ACID ROUTE is the most reliable and handy technique. SALIENT FEATURES:1. Operational reliability the unit can be startedstopped in seconds.2.Compact and continuous unit all operations viz. drying, mixing, gas generation and cooling achieved in same unit.3.Available in wide range capacities from 5kg to 200kghr of dry HCl.4.Except cooling water no other utility e.g. steam, chilled water etc are required.5.Anhydrous gas.6.Ease of installation.7.Capable of operating from 25-120%.8.Negligible pressure drop.9.High efficiency 99%. RAW MATERIAL REQUIREMENT:The indicative requirements for 20 kghr HCI gas generator are given below:1.30% HCL 702.98% H2SO4 -170