To produce one ton of urea, what is your ammonia consumption?

Ammonia consumption is generally in the range of 570 to 580. Due to system fluctuations, ammonia consumption will also fluctuate. Take energy-saving and consumption-reducing measures to reduce leakage, desorption and hydrolysis, and recover ammonia. This issue seems to have been discussed before, so I won’t repeat it here.

570kg/tur, recycled by hydrolysis system, and at the same time, ammonia water will be recovered from the purge gas and fed into the hydrolysis system

Take energy-saving and consumption-reducing measures to reduce leakage, desorption, and ammonia recovery. Ammonia consumption is generally 570 to 590. Due to system fluctuations, ammonia consumption will also fluctuate.

570-580Kg/tUr, which is similar to the 3rd floor. The ammonia water recovered from the ammonia library is also fed into the hydrolysis system. In addition, I think it is good to have advanced technical measures, but maintaining stable and high-load production of the system is also one of the important measures to reduce consumption. Otherwise, the load will be high and low, starting and stopping, and even advanced technology will not be of much benefit.

The problem of ammonia consumption is difficult to calculate because few flow meters are accurate. Even the measurement of the finished urea packaging port has an error of 0.2%. If the consumption of urea and ammonia is low, the energy consumption of synthesis will be high. On the contrary, the energy consumption of synthesis will be low. In fact, every factory considers balance. Accurately calculating ammonia consumption requires calculating how much ammonia is lost per hour, including vents, leaks, dust, etc. As for reducing urea and ammonia consumption, as the above mentioned, desorption and hydrolysis should be started to reduce leakage, leakage, and ammonia content in medium and low atmospheric pressure vents, etc. Measures should be taken wherever there is ammonia loss. If ammonia is not released, it will turn into urea sooner or later in the system. Maintaining the system's long-term operation and reducing the number of starts and stops are effective ways to reduce ammonia consumption.

The theoretical value of ammonia consumption is 566.7kg per ton of urea. Our actual operation is as good as the 570-580 mentioned by the above poster. Here are some personal views on reducing ammonia consumption:: As everyone mentioned, control the analytical hydrolysis system well and conduct on-site inspections to prevent leaks, leaks, etc. In addition, in the carbon dioxide gas stripping method, the opening of the vent valve of the high scrubber also has a great influence, so reducing venting is also one of the methods. ； The inert gas in the system must be discharged. If hydrogen peroxide is used as the oxidant instead of adding anti-corrosion air to the carbon dioxide, a lot of gas venting can be reduced, and at the same time, the amount of air used by the carbon dioxide compressor to pump out the carbon dioxide can be increased to increase the output. If your device already uses the method of adding hydrogen peroxide, then do a good job in terms of carbon dioxide purity to achieve the optimal amount of ammonia consumption. At the same time, control various recycling systems to achieve perfection!

We are usually between 565 and 575. The 300,000-ton urea plant produces about 465 tons of urea per shift.

Our ammonia consumption is also between 566-575, right?

575-590, I agree with the opinion above that stable and high production is the best way to reduce consumption. Now the operating methods of various companies are basically the same. Sometimes it still needs to be balanced, and it is very difficult to measure very accurately, not only because of the factors of the table but also of human factors. It should be said that the liquid ammonia flow meter is more accurate. However, the measurement of urea output is relatively difficult. So far, few people have installed measuring instruments on the belt at the bottom of the granulation tower.

------The theoretical value of urea and ammonia consumption is 566.666. I don’t know where you got the 565? Shaanxi Weihua Dongyang TOYO ACES has 520,000 tons of urea, and its ammonia consumption has been statistically valued at about 569 for several years, which is absolutely among the best in the country. If it weren't for the frequent shutdowns and large load changes caused by the front system every year, this value would still be lower. People in Weihua have less external exchanges, so their achievements are not taken seriously by the outside world.

Urea and ammonia consumption is 560, which can be reached to 550 if urea is recovered.

Heilongjiang Nongken Boxing Chemical Co., Ltd. 600 kg.

Ours is 572-585

scale: 500,000 tons/year process: CO2 stripping method measures: Analytical hydrolysis to supplement ammonia consumption: 570 This post was last edited by luomadadi116 on 2009-2-25 08:07 ]

Our ammonia consumption is 550-560 kilograms. measures taken: 1. Increase the medium pressure appropriately. 2. Increase the ammonia cooling heat exchange area and cooling water volume. 3. Increase the pressure of the analytical tower and reduce water in the system. 4. Reasonably control the ammonia-to-carbon ratio and water-to-carbon ratio entering the tower. The main thing is to appropriately reduce the ammonia-to-carbon ratio and increase the water-to-carbon ratio. Don’t overly pursue a high ammonia-to-carbon ratio just to pursue conversion rate.

Our ammonia consumption is 595-600 kilograms. We use aqueous solution full circulation method, and the ammonia consumption is relatively high.

The ammonia consumption upstairs is really high. It can be improved in terms of desorption, ammonia recovery, operation, etc.

Ammonia consumption is generally in the range of 570 to 580: victory:

Our ammonia consumption is 570-580kg/tUr, using Japan's Toyo ACES technology. Ammonia and urea are recovered through hydrolysis, and the ammonia content of system wastewater discharge is less than 50 ppm.

565kg/tur, use recycled refined ammonia water, and start desorption.