An HCL gas generator is an industrial system used to produce hydrochloric acid gas through controlled chemical reactions. The generated gas is then utilized in various manufacturing processes such as chemical synthesis, chlorination reactions, and specialty product development.
Industries rely on hydrochloric acid gas generators to produce gas on demand instead of transporting compressed gas cylinders, which improves operational safety and reduces logistical challenges.
At Goel Impex, our generators are designed to provide consistent gas generation with optimal efficiency, ensuring smooth process integration for chemical plants and industrial facilities.
Industrial chemical processes often require a reliable source of hydrogen chloride gas (HCl gas) for various reactions and applications. At Goel Impex, we design and manufacture advanced HCL gas generator systems engineered for safety, efficiency, and long-term durability.
Our HCL gas generator units are built with high-quality corrosion-resistant materials and precision engineering, ensuring consistent gas generation while maintaining strict industrial safety standards.
Whether your facility requires continuous HCl gas generation or controlled batch production, our systems provide dependable performance for chemical, pharmaceutical, and specialty manufacturing industries across India.
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Route |
Sulphuric Acid Route |
Boiling Route |
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Working Principle |
Hydrochloric acid is highly soluble in water but the solubility diminishes in presence of H2SO4 and at 70 to 75% H2SO4 concentration its solubility is negligible. Thus by adding (98%) commercial Sulphuric acid to commercial hydrochloric acid (30%) in proper ratio the entire HCL can be liberated in gaseous form leaving 75% H2SO4 as spent acid. |
Aqueous hydrochloric acid forms a maximum boiling point azeotrope at 110 C containing 20.24% HCL at atmospheric pressure. Thus by distilling commercial hydrochloric acid (30%) pure HCL gas can be generated and spent acid will contain over 20.24% HCL. |
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Process Outline |
Metered quantities of commercial sulphuric acid hydrochloric acids are fed to the unit where they mix in the Mixing Zone. The gas generated forms a froth and enters the Generation Zone where while traveling through a bed gas is released which travels upwards through the Drying Zone. Here the gas comes in intimate contact with downward flow of 98% H2SO4. The dry gas leaving the unit passes through a rotameter. The spent liquor containing 70-75% H2SO4 passes through the Cooling Zone before being discharged. |
Metered quantity of commercial hydrochloric acid is preheated in a preheater by steam and fed to a fractionating column with steam as heating media in the reboiler. The vapours leaving the column are condensed with coolant as cooling water and chilled brine in stages. The relatively dry gas passes through a mist eliminator and then through a rotameter. The spent acid containing 22% HCL is cooled through a cooler and then discharged. |
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Salient Features |
– Operational reliability the unit can be started / stopped in seconds. |
– Operational reliability. |
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Indicative Raw-material & Utilities for 20 kg/hr HCL |
30% HCL – 70 kg/hr |
30% HCl – 200 kg/hr |
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Hydrochloric Acid and water form a constant boiling mixture (azeotrope) at around 110°C, corresponding to a concentration of about 20.24% HCL by weight. When concentrated Calcium Chloride solution is added to commercial Hydrochloric Acid, this azeotropic point is removed, allowing complete liberation of HCL gas through distillation. This method ensures the production of anhydrous HCL gas in a clean and eco-friendly manner, making it the most sustainable option for Dry HCL Gas Generation Systems.
Calcium Chloride Route Process Description:
In the Calcium Chloride Route, metered quantities of commercial-grade Hydrochloric Acid and a 50% Calcium Chloride solution are fed into a stripping column that is equipped with a steam-heated reboiler. The effluent discharged from the column bottom is a dilute acidic Calcium Chloride solution. This solution is concentrated back to 50% using an evaporator and then recirculated into the process, minimizing waste and improving efficiency.
The vapor generated is condensed in stages using cooling water followed by chilled brine as the coolant. The dry HCL gas obtained passes through a mist eliminator and then through a rotameter before being delivered to the point of use. This setup ensures consistent and high-purity gas output for all downstream applications.
RAW MATERIAL AND UTILITY REQUIREMENTS:
The following are the indicative requirements for a 20 Kg/hr HCL Gas Generator system.
| 1 | 30-32 % HCl, (Kg/hr) | : 66 |
| 2 | Cooling water at 30 째C (M /hr)) | : 4 |
| 3 | Chilled brine at -10 째C (M /hr) | : 3 |
| 4 | Steam at 6 Kg/cm (g) | : 150 |
Our Anhydrous Dry HCL Gas Generation System is engineered for reliable performance, easy operation, and minimal environmental impact, making it an ideal choice for laboratories, chemical plants, and pharmaceutical production facilities.
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LEGEND |
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R |
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REBOILER |
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C |
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COLUMN |
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E |
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EVAPORATOR |
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PH |
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PRIMARY CONDENSER |
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SH |
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SECONDARY CONDENSER |
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H |
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CONDENSER |
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ME |
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MIST ELIMENATOR |
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P |
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PUMP |
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CW |
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COOLING WATER |
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CHB |
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CHILLED DRAINE |
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S |
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STEAM |
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C |
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CONDENSATE |
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Safety is critical when dealing with corrosive gases. Goel Impex integrates multiple safety features in every HCL gas generator system.
These safety measures help maintain safe and controlled operation in chemical plants and industrial facilities.
Goel Impex provides high-performance HCL gas generator systems designed for industrial efficiency and safety. Our expert engineers can help you select or design the right system for your chemical processing needs.
Contact Goel Impex today to discuss your HCL gas generator requirements and receive a customized technical solution.
An HCL gas generator is used to produce hydrochloric acid gas through controlled chemical reactions for industrial applications such as chemical synthesis, pharmaceutical manufacturing, and specialty chemical production.
The system generates hydrochloric acid gas through a controlled chemical reaction inside a reactor. The produced gas is then purified and delivered to industrial processes requiring HCl gas.
Using an HCL gas generator system allows industries to produce gas on demand, reducing the risks associated with transporting and storing compressed gas cylinders.
Industries such as pharmaceuticals, chemicals, specialty chemicals, dye manufacturing, and research laboratories commonly use HCL gas generators.
Goel Impex offers custom-engineered HCL gas generator solutions, corrosion-resistant equipment, advanced safety systems, and reliable technical support, making it a trusted manufacturer in India.
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