Key areas and equipment of the hydrogenation unit
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1. Heating Furnace and Reactor Area: The heating furnace and reactor area of the hydrogenation unit is equipped with devices such as hydrogenation reaction heaters, furnaces for the distillation section, high-pressure heat exchangers, etc. Most of these devices are high-pressure ones, and the temperature of the fluids flowing through them is relatively high. In addition, there are open flames in the heating furnaces; therefore, this area presents a high level of potential risk. The main hazards are fires and explosions, making it a zone that requires special attention in terms of safety measures. 2. High-pressure separator and high-pressure air cooling area: The high-pressure separator and high-pressure air cooling area contain a high-pressure separator and high-pressure air coolers. If the liquid level in the high-pressure separator is not properly controlled, serious problems may occur. The main hazards are fire, explosion, and H2S poisoning; therefore, this area is a priority for safety precautions. 3. Hydrogen compressor building: The hydrogen compressor building houses the recycle hydrogen compressors and hydrogen boosters. This area is exposed to hydrogen; the pressure of hydrogen in this area is high, and since the compressors are moving equipment, they are prone to failure. As a result, this area presents a high level of risk, with the main hazards being fires, explosions, and poisoning. It is therefore an area that requires special attention from a safety perspective. 4. Fractionation Tower Area: This area contains a large number of equipment units, and the media handled are mostly flammable and explosive substances. High-temperature hot oil pumps are devices that require special attention in terms of safety; a leak of such hot oil can lead to fire accidents. There is a large amount of fuel gas, liquid hydrocarbons, and oils in this area, and an accident in this region could have severe consequences. Additionally, the butane removal tower, along with its dry gas and liquefied gas, contain high concentrations of H2S, posing a risk of poisoning; therefore, this area also requires careful attention from a safety perspective.
5. Safety valves and emergency venting devices: The safety valves and emergency venting devices in hydrogenation units are key equipment for maintaining stable pressure in the units and preventing overpressure. The design and operating condition of safety valves must comply with relevant standards and regulations to ensure that the device can release pressure in a timely manner in case of overpressure. The emergency venting device is used to quickly release the gas inside the device to a safe area in the event of an accident, thereby preventing the device from exploding. 6. Gas detection and leakage monitoring devices: To ensure the safe operation of hydrogenation units, it is necessary to install gas detection and leakage monitoring devices in order to detect and control potential leaks of hazardous gases promptly. These devices can monitor the concentrations of harmful gases such as hydrogen, H2S, and CO, and issue timely alerts through an alarm system to enable appropriate actions to ensure the safety of personnel. 7. Fire protection facilities: Hydrogenation units must be equipped with comprehensive fire protection facilities, such as fire extinguishers, sprinkler systems, and foam systems, to prevent the occurrence or spread of fires. At the same time, a fire alarm system and an automatic fire extinguishing system should also be installed to ensure that alerts can be issued promptly and that fire extinguishing actions can be taken in the event of a fire. In summary, the key areas and equipment in a hydrogenation plant include the heating furnace and reactor sections, the high-pressure separator and high-pressure air cooling sections, the hydrogenation compressor building, and the distillation tower area. Special attention also needs to be paid to safety valves and emergency venting devices, gas detection and leakage monitoring systems, as well as fire protection facilities. These components and equipment are crucial for ensuring the safe operation of hydrogenation units. .