Dangers of Methanol Exposure: Vessel Rupture Risks

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In summary, if a vessel containing 95% liquid methanol and other substances ruptures, the methanol should remain as a liquid due to the high pressure. However, there is a danger of chemical exposure due to the rapid pressure drop, as well as the potential for methanol to replace oxygen and cause a fire. This is why precautions such as fire suppression and rupture panels are necessary when working with heated methanol.
  • #1
princessme
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For a vessel containing liquid methanol (95%) and other substances (methanol takes up about 40 wt%), which operates at 4.5 bar and 75C, what would happen if the vessel ruptures? SInce it's at a relatively high pressure, the methanol should still remain as liquid and hence no explosion? What kind of dangers would the chemical exposure pose?
 
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  • #2
Pressure drops when the vessel ruptures. At atmospheric pressure, it is above the boiling point, so I would expect bad results if pressure drop is rapid...
To make it worse, methanol will replace oxygen and is easily flammable. It is also toxic, even in relatively small quantities.
 
  • #3
When I worked with heated methanol at a pilot plant, it was in a separate building equipped with fire suppression and blow-out (rupture) panels. It is serious business.
 

1. What is methanol and how is it used?

Methanol is a highly toxic chemical compound that is commonly used as a solvent, fuel, and in the production of various industrial and consumer products such as antifreeze, windshield washer fluid, and paint.

2. How can methanol exposure occur?

Methanol exposure can occur through inhalation, ingestion, or skin contact with products containing methanol. It can also occur through accidental spills or leaks in industrial settings where methanol is used.

3. What are the potential health effects of methanol exposure?

Methanol exposure can cause a range of health effects, including irritation of the eyes, skin, and respiratory system. It can also lead to more serious effects such as headaches, dizziness, nausea, and even blindness or death if ingested in high enough doses.

4. How can exposure to methanol lead to vessel rupture?

Methanol is highly corrosive and can cause damage to the lining of blood vessels, leading to inflammation and weakening of the vessel walls. This can result in vessel rupture, which can be life-threatening if it occurs in a major vessel.

5. What safety precautions should be taken to prevent methanol exposure and vessel rupture risks?

To prevent methanol exposure and the risk of vessel rupture, proper safety measures should be taken when handling and storing methanol, including wearing protective gear, using ventilation systems, and following proper storage and handling guidelines. It is also important to be aware of the potential hazards of products containing methanol and to use them according to instructions.

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