A high-efficiency, energy-saving and environment-friendly ammonia absorption process
A high-efficiency, energy-saving, and environmentally-friendly technology, applied in the chemical industry, ammonia preparation/separation, sustainable manufacturing/processing, etc., can solve problems such as environmental pollution, resource waste, and high equilibrium partial pressure of steam ammonia
Active Publication Date: 2021-04-23
安徽德邦化工有限公司
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Problems solved by technology
[0004] The temperature of the existing gas ammonia is high and the heat release of the ammonia absorption reaction makes the AII temperature high, and the equilibrium partial pressure of vapor ammonia on the liquid surface is high, and the escaped gas ammonia causes environmental pollution and waste of resources
Method used
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Embodiment 1
[0022]Seefigure 1The present invention provides the following technical solutions: an efficient energy-saving environmentally-friendly ammese process, including the following equipment: 1 # steamed ammonia tower, 1 # preheater A, 1 # preheater B, 1 # residue heat exchanger , 2 # stenown amphorine tower, 2 # preheater A, 2 # preheater B, 2 # residue heat exchanger, mother liquor separation tank, mother I barrel, ammonia water back wash bucket, absorption tower, raw material pump, recycling soft The bucket, cooling tower, the 1 # Ethase tower is provided with a tank, the 2 # Ethase Tower, which is provided with two tanks, including the following processing steps:
[0023]Step 1: Circulating water from the cooling tower into the tower of 1 # Ethase tower, and reflows to the cooling tower again through the pipe again to cool down, and the circulatory water inlet water in the 1 # 塔 塔 塔The water port is provided with Tij; at the same time, the circulating water from the cooling tower into th...
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The present invention belongs to the technical field of environment-friendly ammonia absorption technology, especially a high-efficiency and energy-saving environment-friendly ammonia absorption technology, including the following equipment: 1# ammonia distillation tower, 1# preheater A, 1# preheater B, 1# Raffinate heat exchanger, 2# ammonia distillation tower, 2# preheater A, 2# preheater B, 2# raffinate heat exchanger, mother liquor separation tank, mother I bucket, ammonia backwash bucket, absorption tower, Raw material pump, recovery soft water bucket, cooling tower, the 1# ammonia distillation tower is provided with a decondenser inside, and the 2# ammonia distillation tower is provided with two dephlegmators distributed up and down inside, which are replaced by MII ammonia absorption Using MI to absorb ammonia, the absorbed liquid enters the gas-liquid separator for separation, the liquid phase returns to the MI barrel, and the gas phase enters the tail gas purification tower and is emptied after purification with light liquid. The escaped gas ammonia is significantly reduced, and the site environment is significantly improved. A large amount of ammonia gas is recycled to the system, which reduces ammonia consumption and increases benefits.
Description
Technical field[0001]The present invention belongs to the field of environmentally friendly aminogenous process, and is specifically involved in high-efficiency energy-saving environmentally-friendly anrymy.Background technique[0002]The essea column is from the desorption tower, which is the operating device that is volatilized by the heat transfer dissolved in the circulating water through the heat transfer of the heat carrier. The general heat-supporting water vapor is used as the heating agent, the balanced vapor pressure of the ammonia gas on the circulating water surface is greater than the partial pressure of the ammonia gas in the heat carrier, and the biopharmaceutical heat transfer is carried out, so that the biopharmaceutical heat transfer is performed. The gas gradually released from the circulating water, and the mixture of ammonia steam and water vapor is obtained in the top of the column. The bottom of the tower is obtained by pure circulating water, the tower is heati...
Claims
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IPC IPC(8): C01C1/10B01D53/18B01D53/14
CPCB01D53/1412B01D53/1431B01D53/18B01D2257/406C01C1/10Y02P20/10Y02P20/50
Inventor 赵祥海相入宣张井柱裔传国霍介方李磊刘明宋志兰方细康陈海波
Owner 安徽德邦化工有限公司