Recently we had an accident in the gas recovery section, but fortunately no injuries. We are studying to depressurize the gas recovery area like that has in the Diesel Hydrotreater by a button in the DCS in case of emergency. We are thinking to depressurize by 10-15 min all the gas recovery area. My question. Any other FCCU has this kind of system ? We are concerned about some damage inside the equipment’s because the rapid depressurize .