Practical Exercise on Purification Technology Version [020]
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What conditions must be met before purifying the gas flow? Answer: 1) The minimum methanol circulation rate of the system is maintained at a stable level. 2) The temperature of the methanol entering C-3001 is below –20°C. 3) The regeneration system is operating properly. 4) The methanol/water separation system is functioning correctly. 5) The methanol spraying system and the nitrogen stripping system have been in operation for over half an hour. 6) The spray water used for removing NH3 in the shift reaction unit is in use
①The minimum system methanol circulation rate remains stable during operation. ②The temperature of methanol entering the wash tower is around -35°C. ③The regeneration system is now working properly. ④The methanol/water separation system is operating normally. ⑤Methanol spraying and nitrogen stripping have been in operation for over half an hour.
①The minimum system methanol circulation rate remains stable during operation. ②The temperature of methanol entering the wash tower is around -35°C. ③The regeneration system is now working properly. ④The methanol/water separation system is operating normally. ⑤Methanol spraying and nitrogen stripping have been in operation for over half an hour
①The minimum system methanol circulation rate remains stable during operation. ②The temperature of methanol entering the wash tower is around -35°C. ③The regeneration system is now working properly. ④The methanol/water separation system is operating normally. ⑤Methanol spraying and nitrogen stripping have been in operation for over half an hour.
The system is operating stably at the minimum methanol circulation level; the temperature of methanol entering the wash tower is around -35 degrees; the regeneration system is functioning properly; the methanol/water separation system is also working correctly; and the methanol spraying and nitrogen stripping systems have been in operation for over half an hour.
During low-methane outgassing, the methanol cycle is established first, and the methanol temperature is within the acceptable range. The methanol water content is normal
This post was last edited by chenjin0608 on 2017-7-30 at 14:45. The minimum methanol circulation rate required for stable operation of the system is maintained; the methanol temperature remains below –20°C. The regeneration system is functioning properly, as is the methanol/water separation system. Methanol spraying and nitrogen stripping have been in use for over half an hour, and the spray water used for impurity removal in the conversion process has also been put into use
①The minimum system methanol circulation rate remains stable during operation. ②The temperature of methanol entering the wash tower is around -35°C. ③The regeneration system is now working properly. ④The methanol/water separation system is operating normally. ⑤Methanol spraying and nitrogen stripping have been in operation for over half an hour.
1) The minimum methanol circulation rate of the system operates stably； 2) The temperature of methanol entering C-3001 is below –20°C ； 3) The regeneration system is operating normally ； 4) The methanol/water separation system is operating normally ； 5) Methanol spraying and nitrogen stripping have been in operation for over half an hour ； 6) The transformation, except for the NH3 spray water, has been put into use.
Answer: ① The minimum circulating volume of methanol in the system operates stably. ②The temperature of methanol entering the wash tower is around -35 ℃. ③The regeneration system is now working properly. ④The methanol/water separation system is operating normally. ⑤Methanol spraying and nitrogen stripping have been in operation for over half an hour.
①The minimum methanol circulation rate of the system is maintained at a stable level. ② The temperature of methanol in the lower section of the H2S absorption tower is below -20°C. ③ The regeneration system is operating properly. ④ The alcohol/water separation system is functioning correctly. ⑤ Methanol spraying and N2 stripping have been in operation for more than half an hour. ⑥ The spray water used for ammonia removal in the shift reaction unit is already in use