Chapter 169: Awesome
But after listening to the word-for-word translation next to him, both Grom and Johansen deeply felt the power of Zhong Bai's patent.
First of all, Zhong Bai has done a very thorough job in theoretical research, which has not been taken seriously in the actual production of synthetic ammonia in the past.
Not to mention a county-level fertilizer plant, even a provincial-level fertilizer plant, few people are willing to focus on the old-fashioned field of synthetic ammonia.
Everyone understands the most fundamental guiding ideology of reducing ammonia consumption: that is, as long as the absorption rate of CO2 (carbon dioxide) is increased and the amount of ammonia venting is reduced, ammonia consumption can be reduced.
Isn't that simple? Simple?
But is it good to do? It's not good to do!
Nonsense, if there is any particularly simple and good way to reduce ammonia consumption, so many nitrogen fertilizer plants in the world have been doing it for a long time, and it is the turn of these Chinese people in front of them?
In the past, everyone was more concerned about how to reduce the load of the low-pressure decomposition and recovery system in the area of reducing ammonia consumption, because as long as the conversion rate and stripping efficiency of the high-pressure system are improved, the load entering the low-pressure system will be reduced accordingly, and NH3 and CO2 will be completely absorbed in the low-pressure system, so that the low-pressure absorption efficiency can be improved, and more NH3 and CO2 will be absorbed and returned to the high-pressure synthesis system, reducing the amount of NH3 and CO2 venting.
This is in line with the fundamental guiding principle of increasing the CO2 absorption rate in the production process, so initially reducing ammonia consumption, almost all institutions in almost all countries are focusing on this.
However, research in one direction will always reach a limit in the end, and when the existing technology can no longer make further breakthroughs, it is necessary to consider other directions.
In recent years, one of the hotter directions is the level of the low-pressure ammonium condenser (V301), if its liquid level is too low, it will affect the normal operation of the ammonium pump, and finally lead to the full liquid to the low-pressure absorption tower, which will affect the desorption hydrolysis system, and finally reduce the CO2 absorption efficiency and reduce the output, so we are also trying to reduce the impact of the V301 level as much as possible.
In this area, two patents have been issued this year, although neither of them are registered with the Swiss Patent Office, but the two experts are still very aware of this fact.
But Zhong Bai proposed at this time: the effect of reducing the inlet temperature of low-pressure ammonium condenser tempered water (referred to as: low-key water) on the CO2 absorption efficiency, which was previously referred to as reducing the temperature of low-key water, made the two experts look bright!
In fact, the essence of this patented measure is very simple: the temperature of the low-key water inlet is too high, and the heat absorbed by the low-pressure ammonium condenser cannot be taken away in time, resulting in the reduction of the low-pressure absorption efficiency, so more NH3 and CO2 in the container can only be vented, which is equivalent to letting them rest there and will not become synthetic ammonia.
That's a big waste!
If you think about the NH3 and CO2 that fertilizer factories spend so much money and resources to buy, they are to turn them into synthetic ammonia as quickly and as much as possible, and then use synthetic ammonia to turn into final urea, but now because the low-key water inlet temperature is too high, the synthesis efficiency of NH3 and CO2 becomes low, so the ammonia consumption increases, and the final output will not increase.
Although Zhong Bai writes the Tao in the theoretical section, but is this practice really effective?
Engineer Grom was the first to attack: "Mr. Zhong, in your information, I basically agree that lowering the temperature of low-key water can improve the efficiency of CO2 absorption and reduce the amount of ammonia vented. But you don't say exactly how much temperature you want to drop? And once the temperature drops too low, if I'm not mistaken, the ammonium condenser tube will crystallize, right? In this case, the absorption efficiency will be too low at low pressure, resulting in overpressure, which will reduce the production of synthetic ammonia! This practice is very risky, and in my opinion it is even a gambling measure, but your factory succeeded this time, how do you explain it? ”
Zhong Bai felt a slight shock when he heard this question.
Yo, the old man still has something.
This Grom obviously has a good grasp of the core content of each link of the ammonia synthesis process, and as soon as he came up, he knew that it should be an old fertilizer...... Oh no, it's an old fertilizer engineer.
Indeed, lowering the temperature of the low-key water to the most suitable section, even to the extent of 0.1 degrees Celsius, can reduce ammonia consumption with maximum efficiency and increase the production of synthetic ammonia.
But if you don't know what the "best section" is, you can easily get what Grom engineers call "the temperature drops too low".
The other party's judgment on the temperature is undoubtedly correct, which can easily lead to overpressure and finally reduce the output of synthetic ammonia.
In other words, don't just look at the success of increasing the yield by 20%, this measure to reduce the temperature of low-key water itself has a certain risk, if it is not adjusted well, or even lowered, not only may the effect not be obvious, but also have the opposite effect of reducing the yield!
This is the saying that it is possible to "steal chickens does not make rice"!
But Zhong Bai would not agree with the other party's statement: "Engineer Grom, your statement is completely wrong!" If you are not sure and rely entirely on guesswork, lowering the temperature of the low-key water is indeed a gamble of pure luck. But we added a control valve, and under its control, I was able to get an exact value of the optimal temperature, down to 0.1 degrees Celsius! As long as you get the accurate value, and then lower the low water temperature to that value, the efficiency improvement is of course 100% success, there is no such thing as failure! ”
"Control valves?" Grom didn't expect Zhong Bai's hand.
"That's right, you didn't have time to finish reading it, did you? Then take a closer look at the back! Attached to it are my original improved design drawings, drawn by hand! Zhong Bai pointed to the paper information in the other party's hand and said: "The original E053A in this is designed based on Soviet-style equipment, you may not have this model in the West, but there should be a model of corresponding American-style equipment, as for whether it is true or false, I don't need to say much, both of them are engineers invited by the patent office, and they will naturally use professional knowledge to distinguish and draw conclusions." ”
After speaking, Zhong Bai simply clasped his hands and stopped talking.
Although Wu Xiaoping couldn't understand Zhong Bai's long list of professional terms, Secretary Wu's translation was still in place in the process of Grom's questioning of Zhong Bai and being refuted by Zhong Bai's well-founded counterattack.
Coupled with an equipment director and two technical directors, when it comes to synthetic ammonia, everyone's business foundation is not bad, and after listening to it, you can know which link Zhong Bai is talking about, and then summarize the situation and tell the deputy director of the team leader, Lu Xudong, who nodded frequently!