Excess hydrogen and chlorine in hydrochloric acid synthesis furnace

In the hydrochloric acid synthesis furnace, both hydrogen and chlorine are essential reactants. However, if an excessive amount of hydrogen and chlorine is used, it will result in a high concentration of hydrochloric acid gas, which is harmful to the human body. Furthermore, a mixture of hydrogen and chlorine may explode under certain conditions. Therefore, the amounts of hydrogen and chlorine supplied should be maintained at normal levels to avoid hazards. .

Generally, the amounts of chlorine and hydrogen added are controlled based on the design capacity of the hydrochloric acid furnace. However, it is usual to use more hydrogen, mainly to ensure that all of the chlorine can be fully reacted. Since pure water is used for absorbing the exhaust gases from the four-in-one furnace at present, its efficiency in absorbing chlorine is not very good; therefore, it is necessary to ensure that all of the chlorine is completely reacted. Meanwhile, the explosion limit of hydrogen in chlorine is 9.8% to 52.8%, but many hydrochloric acid furnaces do not use pure chlorine; instead, they use chlorine containing residual oxygen. Hydrogen and oxygen can also form an explosive mixture, so it is necessary to control the ratio carefully, paying attention to the amount of oxygen present in the chlorine. An excess of hydrogen also causes the flame to turn white, while an excess of chlorine makes the flame yellow.

Chlorine and hydrogen are commonly used raw materials for the synthesis of hydrochloric acid, but their excess presence can cause the following hazards: Toxicity hazards: Chlorine is highly irritating and toxic, with a strong odor, and it can easily cause damage to the respiratory tract, eyes, and skin. Excess hydrogen does not cause toxic hazards ； Explosion hazard: Under certain conditions, hydrochloric acid produced by the reaction of hydrogen and chlorine can catch fire on its own, or it can form a flammable mixture with air, thereby triggering an explosion ； Equipment operation risks: Since both chlorine and hydrogen are hazardous substances with reactive chemical properties, their operation requires experienced professionals to prevent accidents ； Therefore, when synthesizing hydrochloric acid, it is necessary to strictly follow safety procedures to ensure the safe and proper use of chlorine and hydrogen, as well as the stable operation of the equipment, thereby preventing any potential hazards. In the event of an emergency such as an explosion, please take immediate action to evacuate people and call the police so that the situation can be properly handled.