Daily Question 64 on Basic Knowledge of Ammonia Synthesis Production

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Single-choice question 1: The high pressure difference between the seal oil and gas in the syngas compressor can cause ( ). A. Process gas leakage, B. Inter-stage air leakage, C. Sealing oil entering the compressor, D. No hazard. 2. The low oil-gas pressure difference in the syngas compressor seal can be increased through ( ) adjustment. A、Reduce the level of the oil in the high-level tank for the seal oil, B、Increase the level of the oil in the high-level tank for the seal oil, C、Raise the outlet pressure of the seal oil pump, D、Decrease the pressure of the seal oil. 3. The function of 5% steam in the vaporization furnace is (). A、Increase the gasoline-to-oil ratio in the vaporization furnace, B、Increase the oxygen-to-oil ratio in the vaporization furnace, C、Lengthen the length of the dark zone in the burner flame, D、Reduce the furnace temperature. 4. When the float level gauge gets stuck, its output indication is (). A、To zero, B、Minimum, C、Maximum, D、Stop and remain unchanged. 5. When the temperature of the vaporization furnace is below ( ) °C, the burner cooling water can be stopped. A、200, B、300, C、400, D、500. Correct answers: 1. (C), 2. (B), 3. (C), 4. (D), 5. (B).