[Soda ash knowledge] Daily question (142) 2010.3.3
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Short answer: What are the characteristics of the trial process of ammonia inhalation? Please hide the reply. If you do not hide it, you will not be graded in principle. Edited posts will not be graded. Specific hiding methods: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2 %D8 The title of this issue is taken from the electronic version of the book "Technical Workers Job Training Question Bank-Soda Ash Production Operator": http://bbs.hcbbs.com/thread-13140-1-2.html
1. If the ammonia absorption cooling method is different, the composition of each section of the ammonia absorption tower will be different, and the ammonia absorption process will also be different. 2. Due to different brine refining methods, the ammonia absorption process is also different. 3. The operating pressure of ammonia suction is different, and the process of ammonia suction is also different. 4. After the salt absorbs ammonia, the solubility of sodium chloride is reduced and it is easy to crystallize and precipitate, causing damage to pipelines, equipment, etc.
1. If the ammonia absorption cooling method is different, the composition of each section of the ammonia absorption tower will be different, so the ammonia absorption process will also be different.； 2. Due to different brine refining methods, the ammonia absorption process is also different. ； 3. The operating pressure of ammonia suction is different, and the ammonia suction process is also different. ； 4. After the salt absorbs ammonia, the solubility of NaCl is reduced and it is easy to crystallize and precipitate, causing blockage of pipelines and equipment.
1. If the ammonia absorption cooling method is different, the composition of each section of the ammonia absorption tower will be different, and the ammonia absorption process will also be different. 2. Due to different brine refining methods, the ammonia absorption process is also different. 3. The ammonia absorption operating pressure is different, and the ammonia absorption process is also different. 4. After the salt absorbs ammonia, the solubility of sodium chloride is reduced and it is easy to crystallize and precipitate, causing damage to pipelines, equipment, etc.
Short answer: What are the characteristics of the ammonia absorption process? answer: ①If the ammonia absorption cooling method is different, the composition of each section of the ammonia absorption tower is different, so the ammonia absorption process is also different; ② Due to different brine refining methods, the ammonia absorption process is also different; ③ The ammonia absorption operating pressure is different, and the ammonia absorption process is also different ； ④After the salt absorbs ammonia, the solubility of NaCl is reduced and it is easy to crystallize and precipitate, causing blockage of pipelines and equipment.
answer: 1. If the ammonia absorption cooling method is different, the composition of each section of the ammonia absorption tower will be different, and the ammonia absorption process will also be different. 2. Due to different brine refining methods, the ammonia absorption process is also different. 3. The operating pressure of ammonia suction is different, and the process of ammonia suction is also different. 4. After the salt absorbs ammonia, the solubility of sodium chloride is reduced and it is easy to crystallize and precipitate, causing blockage of pipelines and equipment.
1. Different ammonia absorption cooling methods result in different compositions of each section of the ammonia absorption tower, so the ammonia absorption process is also different. 2. Due to different brine refining methods, the ammonia absorption process is also different. 3. The ammonia absorption operating pressure is different, and the ammonia absorption process is also different. 4. After the salt absorbs ammonia, the solubility of NACL is reduced, and it is easy to crystallize and precipitate, causing blockage of pipelines, equipment, etc.
answer: 1. If the ammonia absorption cooling method is different, the composition of each section of the ammonia absorption tower will be different, so the ammonia absorption process will also be different. 2. Due to the different methods of refining brine, the process of absorbing ammonia is also different. 3. The operating pressure of ammonia suction is different, and the ammonia suction process is also different. 4. After the salt absorbs ammonia, the solubility of NACL is reduced and it is easy to crystallize and precipitate, causing blockage of pipelines, equipment, etc.
1． If the ammonia absorption cooling method is different, the composition of each section of the ammonia absorption tower will be different, so the ammonia absorption process will also be different.； 2. Due to different brine refining methods, the ammonia absorption process is also different. ； 3. The operating pressure of ammonia suction is different, and the ammonia suction process is also different. ； 4. After the salt absorbs ammonia, the solubility of NaCL is reduced and it is easy to crystallize and precipitate, causing blockage of pipelines and equipment.
1. If the ammonia absorption cooling method is different, the composition of each section of the ammonia absorption tower is also different, so the ammonia absorption process is also different. 2. Due to different brine refining methods, the ammonia absorption process is also different. 3. The operating pressure of ammonia suction is different, and the ammonia suction process is also different. 4. After the salt absorbs ammonia, the solubility of NaCl is reduced and it is easy to crystallize and precipitate, causing blockage of equipment, pipelines, etc.
The refining regeneration gas containing about 12% ammonia enters the lower part of the copper-washed ammonia recovery tower operated at normal pressure, and contacts with the soft water coming down from the top of the tower to generate ≥60tt dilute ammonia water. The gas leaving the tower returns to the Roots blower.； The carbonized tail gas containing ammonia less than 30g/Nm3 contacts the soft water coming down from the top of the tower in the integrated tower to generate ≥70tt dilute ammonia water, and the gas leaving the tower goes to the refining section. ； The relief gas from the liquid ammonia storage tank is mixed with the purge gas from the synthesis system and then enters the isobaric recovery tower. It contacts the copper-washed ammonia recovery tower in the middle of the tower and the dilute ammonia water from the comprehensive tower to generate ≥200tt ammonia water. In order to ensure that the ammonia content of the gas leaving the tower at the top of the tower is ≤0.1g/Nm3, a small amount of soft water is added to the top of the tower. ； If all the ammonia water at the bottom of the isobaric recovery tower enters the carbonization system, a large amount of dilute ammonia water will still be discharged. Therefore, a desorption tower is added, and the ammonia content of the gas at the top of the tower is about 50%. The water at the bottom of the tower can be discharged directly, or it can be used as water supply for the waste heat boiler in the gas generation section, which not only saves the consumption of soft water, but also fully recovers heat. This process can achieve no ammonia discharge in the ammonia synthesis system even if the system does not replenish ammonia.