Dry HCL Gas Generator:
Hydrochloric acid used for commercial purposes is available in the market as a 30% aqueous solution and is commonly used by industries in significant quantities. Nevertheless, concerning some applications, such as its use in the pharmaceutical industry and hydrogenation reaction, HCl must be present only in the anhydrous and gaseous form. Various processes followed to generate HCl gas using the commercial HCl Acid are available based on the customer requirement. The procedures are as follows:
- Using Concentrated Sulfuric Acid
- Using Calcium Chloride
- Using Boiling method
Dry HCl Gas Generator Plants usually range between the capacity of 5Kg/Hr to 250 Kg/Hr. We can also manufacture and provide the plants with massive capacity as per the client’s request. Ablaze holds a successful and long record of designing and supplying various systems built, especially for Dry HCl Gas Generation Systems.
Ablaze Export manufactures Borosilicate glass equipment, PTFE lined components and PTFE Components. We are qualified enough to create, provide, and handle such systems, as we also manufacture these crucial materials of Construction (MoC) that are used while assembling such systems. Ablaze Exports is also capable of doing the instrumentation as well as automation, which is considered critical for the reliability as well as the safe operation of the system.
HCL for commercial use is available with a 30% concentrated Hydrochloric Acid aqueous solution. During the processes in many industrial applications, the presence of moisture is not appreciated, that is when HCl is used in the form of anhydrous solution to get rid of that moisture.
Ablaze Export Incorporation manufactures and supplies three types of HCl gas generators based on their working principle as well as the customer requirement using Sulphuric Acid, Calcium Chloride, and by the boiling method.
Using Sulphuric Acid:
When you use sulphuric acid (98%) that is available for commercial uses, along with hydrochloric acid 30%, the HCL content in water reduces to a considerable extent. When the solution is used at an accurate ratio, the whole HCl gets detached in anhydrous form, leaving the diluted sulphuric acid behind in the vessel. This method is considered as an immensely efficient method to recover HCl and is followed by an insignificant drop in the pressure.The dry HCl gas is produced in the plant via the distillation process of 30% hydrochloric acid with highly concentrated sulphuric acid. The Sulphuric acid is then poured from the top in the packed column, and 30% hydrochloric acid is also released in the column. Both the acids are said to flow concurrently in the column.
Condenser or the Cooler is placed on top of the column that helps in cooling the HCl gas, leaving the column. An acceptable drying section will remove the final moisture traces from the HCl gas, leaving the column. The final product released from the plant is then cooled in a heat exchanger before discharging.
All the drenched parts of the system are manufactured from the material such as Glass and PTFE, which is considered corrosion-resistant materials.
Salient Features:
- It requires a low capital cost.
- It is a simple process.
- It has a compact design.
- It uses Sulphuric acid 70% with 1% HCl content.
- It has an average operating cost.
Using Calcium Chloride:
Calcium chloride is a dehydrating agent that takes the moisture out and possesses a robust affinity for water. Subsequently, when the calcium chloride solution reacts with the commercial HCl, the gaseous form of HCl becomes available as a by-product. This HCl gas is then passed via mist eliminator to achieve a comprehensive anhydrous solution of hydrogen chloride.The plant generates dry HCl gas via a distillation process of 30% hydrochloric acid along with the Calcium Chloride solution. The preheated 30% Hydrochloric acid is poured into the azeotropic distillation chamber.
The Hydrochloric gas is produced as a by-product after mixing both the rises and liquids in the column. The Thermosiphon reboiler produces heat energy using steam for the distillation process.
Salient Features:
It has negligible affluent properties.It has a low operating cost.
It has zero discharge.
It has the highest turndown ratio.
Using Boiling Method:
The commercial hydrochloric acid is formed when a 30% concentrated solution is mixed with water. When this solution is boiled, the HCl is said to form an azeotropic mixture when mixed with water at around 110°C temperature. This mixture of a solution is said to contain 20.24% HCl, and the rest of the mix gets discharged in the form of hydrochloric gas. The anhydrous gas generation system can be manufactured with various capacities up to generating 200Kg/hr of dry hydrochloric gas.The gas generation plant creates dry hydrochloric gas through the distillation process, where a 30% hydrochloric acid solution is processed as a normal process. The mixture of 30% hydrochloric acid is preheated while leaving the hot bottom solution in the heat exchanger chamber and is delivered to the azeotropic distillation chamber via a pump at a controlled level.
All the drenched parts of the Dry hcl gas generation systems are manufactured from all the materials that are resistant to corrosion, such as Glass and Graphite.
Salient Features:
It has an average capital cost.It is a simple process.
It has a compact design.
It produces pure 21% hydrochloric gas as a bottom product.
It has a low operating cost.
