Chapter 181: Ammonia synthesis

Yang Yuanzhao clapped his hands and attracted everyone's attention, then he said: "Everyone knows me, and I called everyone here for a project!" ”

Everyone's eyes turned over, Yang Yuanzhao waved his hand, and followed Xiaohan with a large number of texts, entered the house, and distributed them to everyone one by one.

Yang Yuanzhao gave a mature reaction process, nitrogen and hydrogen, under a pressure of 50 atmospheres, at a temperature of 500 degrees, with the help of iron as a catalyst, the proportion of success in the synthesis of ammonia is about 15-20, such a production capacity is enough for a small fertilizer plant and nitric acid plant foundation, the rest, from nitric acid to gunpowder and TNT, relatively speaking, these are from the United States hired personnel, Yang Yuanzhao does not know much about this, simply did not indicate.

The report was written in English, and most of the people present were Anglo-Americans, and even if they weren't, they all knew English, and Ricks was the first to turn the page, and the first page above was synthetic ammonia.

Ammonia, Ricks was a little surprised, it was not the production of nitric acid as he imagined, nitric acid in this era, generally through the reaction of concentrated sulfuric acid and saltpeter, directly generating nitric acid, although concentrated sulfuric acid is corrosive, the production of nitric acid consumes more concentrated sulfuric acid, and it is also a more important nitric acid production method in this era.

Ammonia, which also seems to be a nitrogen-containing gas, seems to be able to react with guò to generate nitric acid, which seems to be an oxidation reaction, because most of the ammonia is generated through guò saltpeter, so the method of synthesizing nitric acid is a waste, and in this era, not many people have studied it.

Is it nitric acid, or is it not? A trace of doubt flashed in Rix's heart, and he continued to open it, but he was surprised, it turned out that in the detailed process inside, it was not the common method of producing ammonia, but the genius method of directly using nitrogen and hydrogen to make ammonia.

Nitrogen is a common gas in the air, not easy to be absorbed by the human body, as for hydrogen, it is also a commonly used gas, which can be burned, and can also be used as a filling gas for hot air balloons, the molecular formula of ammonia is NH3, that is, one nitrogen atom and three hydrogen atoms are composed, but in general, nitrogen is relatively stable and difficult to be oxidized, let alone directly converted into ammonia.

The following is relatively simple, Yang Yuanzhao just knows the previous knowledge of chemistry, knowing this, 50 atmospheres, uniform mixing, 500 degrees of temperature, iron as a catalyst, only these, what process, ratios and the like, there is no description at all, which is different from ordinary industrial production.

Ricks thought for a while, but said, "Mr. Yang, can you synthesize ammonia like this?" How do I feel, there's something wrong with this! ”

Not only Ricks thinks so, but other people also think the same way, if ammonia can be synthesized in this way, this is a major event that will change the entire nitric acid industry, compared with natural saltpeter, the source of nitrogen in the air is much more.

"Isn't it, I'll know it at once!" Yang Yuanzhao didn't explain too much, and said calmly.

"But how do you get nitrogen?" Ricks asked sharply, there is nitrogen in the air, but the air is not only nitrogen, nitrogen only occupies more than 70, the remaining oxygen, carbon dioxide and part of the water vapor, inert gas, etc., is a very complex mixture, aside from these, only through the reaction of saltpeter and nitric acid, nitrogen can be obtained, in this way, the synthesis of ammonia is almost equivalent to useless work, there is no stable source of nitrogen, directly with the nitrogen decomposed by saltpeter and hydrogen, It is better to produce nitric acid directly from saltpeter.

"This requires you to come to the real yàn!"

"We?" Ricks glanced around and said, "We're not masters like Truss, we're just ordinary chemical engineers!" ”

Ricks was telling the truth, and the others also nodded, Yang Yuanzhao sighed and said: "Why are you so unpioneered, okay, I don't know the specific steps, but it's still okay to give instructions!" ”

"Fingering?" Ricks and the others looked at Yang Yuanzhao with no bottom in their hearts, Yang Yuanzhao is the person in charge of Germany and the United States in the northwest, directly in charge of their funds and salaries, they will not offend him, but as far as science is concerned, one is one, two is two, and it is impossible for a person who has not proven himself to convince everyone.

"I believe everyone knows that liquids have melting points, and different liquids have different melting points and boiling points!"

They are all engineers and technicians, and a few are even specialized in chemistry, so the basic knowledge is, of course, that gaseous, liquid, and solid states can be converted into each other.

Looking at everyone nodding, Yang Yuanzhao said: "According to different gasifications, we decompose oil, and many different products such as heavy oil, gasoline, diesel, and kerosene appear!" ”

Heavy chemical industry and petrochemical industry are two completely different fields, but the principle is the same, Ricks nodded and said, "What does that have to do with nitrogen!" ”

"Of course there is a connection!" Yang Yuanzhao smiled mysteriously and said, "If the air is under pressure, will it turn into liquid!" ”

"High-pressure cryogenic liquefied air!" Ricks exclaimed.

As a chemical researcher, high-pressure and low-temperature liquefied air, which has only been proposed in recent years, but the difficulty of solving is huge, after all, to achieve high pressure and low temperature under the dual situation, this is just an idea, using the difference in liquefaction temperature, you can separate the oxygen, nitrogen, and other gases in the air, but the energy consumption is large, it is not easy to solve, and it can only be completed in the real yàn room at present.

It sounded very reasonable, but Ricks, who was familiar with chemical engineering, knew that it was not easy to solve, and he quickly asked this question in his heart.

In fact, in Yang Yuanzhao's heart, he still tends to liquefaction and separation, not only can obtain relatively pure nitrogen, but also obtain by-products of oxygen, carbon dioxide, and even inert gases, especially inert gases, which are used in many chemical products.

Air compression, for others, is a little difficult, but for him who brought air conditioners and refrigerators from later generations, as long as he concentrates on research, the possibility of making zuò is very great, besides, there is not such a person as Truss who has a deep understanding of electricity and power, and if he is serious, he may be able to solve it.

He lacks time, no matter what else, synthetic ammonia must be put into production as much as possible, otherwise, the fertilizer of winter wheat, you can still think of a way, to cotton, the number of fertilizers surged, even if his all-in-one machine is upgraded, it may not be able to support.

"What if it's a trick?" Yang Yuanzhao said calmly: "In the air, in addition to nitrogen, the largest content is carbon dioxide and water vapor, if you choose the elimination method!" ”

Ricks' eyes lit up and exclaimed: "Yes, if you consume oxygen and use carbon to turn oxygen into carbon dioxide, water vapor and carbon dioxide are liquid gases at room temperature and high pressure, which can be removed by pressure method, and the rest is relatively pure nitrogen and a small amount of inert gas, and the inert gas does not affect the overall reflection, so that the raw material of nitrogen is available!" ”

Others, some, reacted in the same way as Ricks, and some still didn't understand what Ricks thought, but there was nothing wrong with that, as long as one person understood, the key was to get the result, and it didn't matter how the result was made.

"It seems that you understand, the matter of nitrogen is handed over to you, can it be synthesized!"

"Yes!" Ricks nodded and said, "However, I don't have a high-pressure closed container, to separate, it needs a certain pressure condition, and ordinary containers are not good!" ”

"I'll send this later!" High-pressure closed container, is the most important problem that Harpy went to Germany, solved, the maximum of 200 cubic meters of closed container, has also been made, of course, the closed container this thing, the larger the more difficult to do, surface tension, peak pressure, etc., all need to be considered, but it is small, easier to do, only one cubic or so, the closed container used in the real yàn room, is as a gift, to get over, a total of more than 20!

Ricks nodded excitedly, as an engineer and a lover of chemistry, Ricks actually has a certain ambition to separate nitrogen, synthesize ammonia, and change the way the whole world makes nitric acid, which is bound to be brilliant in this era when tense accidents are becoming more and more obvious.

Ricks was excited, and Yang Yuanzhao didn't interrupt him, because this honor couldn't belong to him, he was a step late, although the German side did not announce it, but Haber's merits, no one can erase it, you must know that Haber's Nobil Award was created because of the huge breakthrough in the synthetic ammonia project.

With the full support of Yang Yuanzhao, almost responsive, Ricks and several other engineers were also quite good, and soon, they devised a perfect method, the first gas used carbon to consume the oxygen in the air, and then with the help of 70 atmospheres of pressure, because the high temperature is not considered, at room temperature, the atmospheric pressure index of the cylinder can rise, and the nitrogen can be separated from carbon dioxide, water vapor, etc., and finally the nitrogen mixed with a small amount of inert gas is obtained.

After getting the nitrogen, Ricks made persistent efforts to use electrolysis of water to obtain hydrogen, and added nitrogen and hydrogen to the reaction sealing tank step by step according to Yang Yuanzhao's steps, with a pressure of 50 atmospheres, a temperature of 500 degrees, and the iron of the catalyst to start the reaction.

Everyone stared at this reaction tank, waiting for the end of the real yàn, although the highest level here is just a university lecturer, and the others are mostly engineers and the like, but they are engaged in chemistry-related industries, and it is very clear that this real yàn will bring to the whole world, what kind of changes will it bring. RS