【Learn Ethylene Together】Five questions per day to easily learn about ethylene in 10 days
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【Learning Ethylene Together】Five questions per day to easily learn about ethylene. 10 46. From the perspective of heat utilization, the biggest drawback of oil spray quenchers is ( ). 47. Residence time refers to the time from when the pyrolysis feedstock enters ( ) to when it exits. 48. The three principles for handling accidents are ( ), ( ), ( ). 49. The setting pressure of a safety valve is generally ( ) of the operating pressure for gaseous media, and ( ) for liquid media. 50. The function of the guide tube at the lower part of the furnace tubes in the radiation section of the pyrolyzer is ( ). 46. From the perspective of heat utilization, the biggest drawback of oil-sprayed quenchers is ( ). Heat cannot be recovered effectively. 47. Residence time refers to the time from when the pyrolysis feedstock enters ( ) until it exits. From entering the radiant section furnace tube to leaving it, 48. The three principles for handling accidents are ( ), ( ), ( ). The cause of an accident must be clearly analyzed before moving on; those responsible for the accident as well as the general public must be educated if necessary; and no preventive measures in place must not be ignored. 49. The setting pressure of a safety valve is generally ( ) of the operating pressure for gaseous media, and ( ) for liquid media. 1.1 times, 1.1–1.25 times. 50. What is the function of the guide tube at the lower part of the furnace tubes in the radiation section of the pyrolysis furnace? Prevent lateral displacement of the furnace tubes
46. From the perspective of heat utilization, the biggest drawback of oil spray quenchers is (inability to effectively recover heat). 47. Residence time refers to the time it takes for the pyrolysis feedstock to move from entering the radiant section of the furnace tube to leaving it. 48. The three principles for handling accidents are: (not moving on until the cause of the accident is clearly identified), (not moving on until those responsible for the accident and the general public have been educated), and (not moving on until preventive measures are put in place). 49. The setting pressure of a safety valve is generally (1.1 times) the operating pressure for gaseous media, and (1.1–1.25 times) the operating pressure for liquid media. 50. The function of the guide tube at the lower part of the furnace tubes in the radiation section of the cracking furnace is to prevent lateral displacement of the furnace tubes.
46. From the perspective of heat utilization, the biggest drawback of oil spray quenchers is (inability to effectively recover heat). 47. Residence time refers to the time it takes for the pyrolysis feedstock to move from entering the radiant section of the furnace tube to leaving it. 48. The three principles for handling accidents are: (not moving on until the cause of the accident is clearly identified), (not moving on until those responsible for the accident and the general public have been educated), and (not moving on until preventive measures are put in place). 49. The setting pressure of a safety valve is generally (1.1 times) the operating pressure for gaseous media, and (1.1–1.25 times) the operating pressure for liquid media. 50. The function of the guide tube at the lower part of the furnace tubes in the radiation section of the cracking furnace is to prevent lateral displacement of the furnace tubes
48 The cause of an accident will not be left uninvestigated; those responsible for the accident will not be spared
46. From the perspective of heat utilization, the biggest drawback of oil spray quenchers is (inability to effectively recover heat). 47. Residence time refers to the time it takes for the pyrolysis feedstock to move from entering the radiant section of the furnace tube to leaving it. 48. The three principles for handling accidents are: (not moving on until the cause of the accident is clearly identified), (not moving on until those responsible for the accident and the general public have been educated), and (not moving on until preventive measures are put in place). 49. The setting pressure of a safety valve is generally (1.1 times) the operating pressure for gaseous media, and (1.1–1.25 times) the operating pressure for liquid media. 50. The function of the guide tube at the lower part of the furnace tubes in the radiation section of the cracking furnace is to prevent lateral displacement of the furnace tubes.
46. From the perspective of heat utilization, the biggest drawback of oil spray quenchers is (inability to effectively recover heat). 47. Residence time refers to the time it takes for the pyrolysis feedstock to move from entering the radiant section of the furnace tube to leaving it. 48. The three principles for handling accidents are: (not moving on until the cause of the accident is clearly identified), (not moving on until those responsible for the accident and the general public have been educated), and (not moving on until preventive measures are put in place). 49. The setting pressure of a safety valve is generally (1.1 times) the operating pressure for gaseous media, and (1.1–1.25 times) the operating pressure for liquid media. 50. The function of the guide tube at the lower part of the furnace tubes in the radiation section of the cracking furnace is to prevent lateral displacement of the furnace tubes.
46. From the perspective of heat utilization, the biggest drawback of oil spray quenchers is (inability to effectively recover heat). 47. Residence time refers to the time it takes for the pyrolysis feedstock to move from entering the radiant section of the furnace tube to leaving it. 48. The three principles for handling accidents are: (not moving on until the cause of the accident is clearly identified), (not moving on until those responsible for the accident and the general public have been educated), and (not moving on until preventive measures are put in place). 49. The setting pressure of a safety valve is generally (1.1 times) the operating pressure for gaseous media, and (1.1–1.25 times) the operating pressure for liquid media. 50. The function of the guide tube at the lower part of the furnace tubes in the radiation section of the cracking furnace is to prevent lateral displacement of the furnace tubes.