Emergency treatment
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How to deal with benzene leakage in coking plant? In addition, how to eliminate the smell caused by benzene leakage?
Benzene is a colorless liquid with a special aromatic odor. It is miscible with alcohol, ether, acetone and carbon tetrachloride, and is slightly soluble in water. Benzene is volatile and flammable, and its vapor is explosive. Regular exposure to benzene can cause the skin to become dry and desquamated due to degreasing, and some may develop allergic eczema. Long-term inhalation of benzene can cause aplastic anemia. The crude benzene in the coking plant has a very low ignition point and is very toxic. The liquid is lighter than water and the volatile gas is heavier than air. Toxic gases generally flow close to the ground and can form explosive mixtures with air. If they accumulate in low places or poorly ventilated places, there is a risk of explosion. In order to prevent crude benzene from catching fire and causing accidental explosions, dry powder, foam, and carbon dioxide should be used to extinguish fires according to the on-site conditions. There are currently only three ways to prevent benzene poisoning: 1. Improve the process flow; 2. Strengthen ventilation and improve the environment; 3. Pay attention to personal protection.
A benzene leak in a coking plant is very dangerous because benzene is a highly flammable and highly toxic substance. If there is a large amount of benzene leaking, be sure to be prepared to prevent poisoning and fire. If the rescue personnel wear benzene-proof canisters and prepare foam fire extinguishing devices, first cut off the leak point and pump benzene into the system as soon as possible. ； If there is a small leak, you can cover it with dry ash or dry soil and use a wooden shovel to clean it up (never use a shovel to prevent fire ； Operators are also not allowed to wear chemical fiber clothes. When entering this area, be careful of static electricity released to the body). Cleaning materials must be properly disposed of to prevent burning. Because benzene is highly volatile, the odor cannot be eliminated until cleaning is complete. Personnel should stand upwind.