Methanol Weekly Topic How to determine a leak in a methanol synthesis tower? 2016.02.21---02.29

How to determine a leak in a methanol synthesis tower? How should it be handled? Methanol has a slight corrosive effect on metals, especially brass. Flammable; produces a faint blue flame without light when burning. Steam can form explosive mixtures with air. The explosive limit is 6.0%–36.5% (vol). The pure form has a slight ethanol taste, while the crude form is pungent and unpleasant. Toxins can directly damage the cellular tissues of the human body, particularly the retina of the optic nerve, leading to blindness. A normal person can suffer severe poisoning from consuming 4–10 grams of pure methanol at once. Consuming 7-8g can lead to blindness, while consuming 30-100g can be fatal. Procedure for responding to a gas alarm: Quickly evacuate people from the area contaminated by the leak to a safe zone, isolate the area, and strictly restrict access. Cut off the source of fire. It is recommended that emergency responders wear self-contained positive-pressure breathing apparatus and anti-static work clothing. Do not come into direct contact with the spill. Seal the source of leakage as much as possible. Prevent entry into confined spaces such as sewers and drainage ditches. 　　 Minor leaks: Absorb or soak up with sand or other non-flammable materials. It can also be rinsed with a large amount of water, and the diluted wash water is then discharged into the wastewater system. 　　Large-scale leakage: Build dikes or dig pits to contain it. Cover with foam to reduce vapor damage. Transfer to a tank truck or specialized collector using an explosion-proof pump, and recycle it or transport it to a waste disposal facility for disposal.

It is determined based on the material balance of all methanol imports and exports of the tower

How to determine a leak in a methanol synthesis tower? How should it be handled? Methanol has a slight corrosive effect on metals, especially brass. Flammable; produces a faint blue flame without light when burning. Steam can form explosive mixtures with air. The explosive limit is 6.0%–36.5% (vol). The pure form has a slight ethanol taste, while the crude form is pungent and unpleasant. Toxins can directly damage the cellular tissues of the human body, particularly the retina of the optic nerve, leading to blindness. A normal person can suffer severe poisoning from consuming 4–10 grams of pure methanol at once. Consuming 7-8g can lead to blindness, while consuming 30-100g can be fatal. Procedure for responding to a gas alarm: Quickly evacuate people from the area contaminated by the leak to a safe zone, isolate the area, and strictly restrict access. Cut off the source of fire. It is recommended that emergency responders wear self-contained positive-pressure breathing apparatus and anti-static work clothing. Do not come into direct contact with the spill. Seal the source of leakage as much as possible. Prevent entry into confined spaces such as sewers and drainage ditches. 　　 Minor leaks: Absorb or soak up with sand or other non-flammable materials. It can also be rinsed with a large amount of water, and the diluted wash water is then discharged into the wastewater system. 　　Large-scale leakage: Build dikes or dig pits to contain it. Cover with foam to reduce vapor damage. Transfer to a tank truck or specialized collector using an explosion-proof pump, and recycle it or transport it to a waste disposal facility for disposal.

How to determine a leak in a methanol synthesis tower? How should it be handled? Methanol has a slight corrosive effect on metals, especially brass. Flammable; produces a faint blue flame without light when burning. Steam can form explosive mixtures with air. The explosive limit is 6.0%–36.5% (vol). The pure form has a slight ethanol taste, while the crude form is pungent and unpleasant. Toxins can directly damage the cellular tissues of the human body, particularly the retina of the optic nerve, leading to blindness. A normal person can suffer severe poisoning from consuming 4–10 grams of pure methanol at once. Consuming 7-8g can lead to blindness, while consuming 30-100g can be fatal. Procedure for responding to a gas alarm: Quickly evacuate people from the area contaminated by the leak to a safe zone, isolate the area, and strictly restrict access. Cut off the source of fire. It is recommended that emergency responders wear self-contained positive-pressure breathing apparatus and anti-static work clothing. Do not come into direct contact with the spill. Seal the source of leakage as much as possible. Prevent entry into confined spaces such as sewers and drainage ditches. 　　 Minor leaks: Absorb or soak up with sand or other non-flammable materials. It can also be rinsed with a large amount of water, and the diluted wash water is then discharged into the wastewater system. 　　Large-scale leakage: Build dikes or dig pits to contain it. Cover with foam to reduce vapor damage. Transfer to a tank truck or specialized collector using an explosion-proof pump, and recycle it or transport it to a waste disposal facility for disposal.

1. How to determine if there is a leak in the synthesis tower? (1) There are significant fluctuations in the temperature of the catalytic bed; monitor the temperature at hot spots. (2) Internal leakage causes overpressure in the synthesis vapor drum, triggering the safety valve to activate. (3) If alarms are installed at the synthesis site, an alarm will be triggered when the value exceeds the set limit. 2. How to handle it? Prepare for an emergency stop: Steps for an emergency stop: (1) Notify the dispatcher by phone. (2) Cut off the fresh air supply. (3) Stop the compressor. (4) Separator: Close the on-site shut-off valve when the liquid level in the expansion tank reaches the low limit. (5) At the same time, release the pressure by opening the purge gas valve; when the system pressure is ≤ 0.3 Mpa, open the N2 shut-off valve and introduce qualified N2 to purge the system. (6) Analyze CO + H2

Methanol has a slight corrosive effect on metals, especially brass. Flammable; produces a faint blue flame without light when burning. Steam can form explosive mixtures with air. The explosive limit is 6.0%–36.5% (vol). The pure form has a slight ethanol taste, while the crude form is pungent and unpleasant. Toxins can directly damage the cellular tissues of the human body, particularly the retina of the optic nerve, leading to blindness. A normal person can suffer severe poisoning from consuming 4–10 grams of pure methanol at once. Consuming 7-8g can lead to blindness, while consuming 30-100g can be fatal. Procedure for responding to a gas alarm: Quickly evacuate people from the area contaminated by the leak to a safe zone, isolate the area, and strictly restrict access. Cut off the source of fire. It is recommended that emergency responders wear self-contained positive-pressure breathing apparatus and anti-static work clothing. Do not come into direct contact with the spill. Seal the source of leakage as much as possible. Prevent entry into confined spaces such as sewers and drainage ditches. 　　 Minor leaks: Absorb or soak up with sand or other non-flammable materials. It can also be rinsed with a large amount of water, and the diluted wash water is then discharged into the wastewater system. 　　Large-scale leakage: Build dikes or dig pits to contain it. Cover with foam to reduce vapor damage. Transfer to a tank truck or specialized collector using an explosion-proof pump, and recycle it or transport it to a waste disposal facility for disposal.

Measure the alcohol content in furnace water, and measure the flammable gases in the gas