The hazards to humans posed by C6 oil from continuous reforming

Liquid phase sampling, containing a high concentration of benzene. Benzene is highly harmful to humans. But a small amount is not a big problem.

Excessive exposure can lead to aplastic anemia, that is, leukemia; reduce skin contact and inhalation of oil vapors； Drink more milk to help with detoxification; have regular health checks and pay attention to blood test results

Most of the C6 compounds are members of the aromatic family, with benzene being the key component. Benzene is a colorless liquid with a distinctive aromatic odor; it is miscible with alcohols, ethers, acetone, and carbon tetrachloride, and slightly soluble in water. Benzene is volatile and flammable, and its vapors are explosive. Regular exposure to benzene can cause the skin to become dry due to loss of oil, leading to scaling; in some cases, allergic eczema may develop. Long-term inhalation of benzene can lead to aplastic anemia. Health hazards: High concentrations of benzene have an **effect on the central nervous system, causing acute poisoning ； Prolonged exposure to benzene damages the hematopoietic system, causing chronic poisoning. Acute poisoning: In mild cases, symptoms include headache, dizziness, nausea, vomiting, mild excitement, and unsteady gait, similar to the effects of alcohol intoxication ； In severe cases, coma, convulsions, and low blood pressure occur, leading to respiratory and circulatory failure. Chronic poisoning: The main manifestations include neurasthenic syndrome ； Changes in the hematopoietic system: decreased white blood cells and platelets; in severe cases, aplastic anemia occurs ； In a few cases, leukemia can develop following chronic poisoning (acute myeloid leukemia being the most common). Skin lesions include depigmentation, dryness, chapping, and dermatitis. It can cause increased menstrual flow and prolonged periods. Environmental hazard: It is harmful to the environment and can pollute water bodies. Fire and explosion hazard: This product is flammable and a carcinogen.

The benzene content in the C6 fraction oil obtained by benzene extraction from the top of the reformation dehexanizer is below 28%; it is toxic, but its toxicity is much lower compared to pure benzene.

Long-term inhalation of benzene can lead to aplastic anemia. High concentrations of benzene have an effect on the central nervous system, causing acute poisoning ； Prolonged exposure to benzene damages the hematopoietic system, causing chronic poisoning. Although there may be no impact in the short term, it is still necessary to be cautious. It is recommended that the person taking samples stand on the upwind side and wear plastic gloves to avoid direct contact as much as possible.

It has a pleasant smell, but excessive inhalation is not good. Benzene (C6H6) is an organic compound and the simplest aromatic hydrocarbon; at room temperature it is a colorless, sweet-smelling transparent liquid with a strong aromatic odor. Benzene is flammable and toxic, and it is a Group 1 carcinogen according to IARC. Benzene is insoluble in water but soluble in organic solvents; it can also be used as an organic solvent itself. Benzene is a basic raw material in the petrochemical industry. The production volume of benzene and the technological level of its production are **one of the indicators of the development level of the petrochemical industry**.

I’ve been working in the aromatic compounds facility for almost 2 years, and the most common issue I hear about is low white blood cell counts, which is what’s referred to as leukemia. It seems I’ll have to deal with aromatic compounds for the rest of my life; I hope that those in my industry can take good care of themselves and maintain good health

Gao Fanghuan from the Institute of Petrology discusses benzene discoloration in oils and petroleum products. It has destroyed several generations.