"Although the multi-stage flash evaporation technology is relatively mature, it has two obvious disadvantages compared with the reverse osmosis method.

First, multi-stage flash evaporation requires the use of waste heat from thermal power plants, otherwise, the cost is not much cheaper than distillation, so the inherent limitation is relatively dead;

Second, in terms of cost, it can be equal to the reverse osmosis method before, but after Liu ~ and Liu Feng have developed several new polyamide composite materials, the cost is obviously much higher.

Therefore, I think the research focus of seawater desalination is still on reverse osmosis membrane materials. ”

I have to say that even Xuewen is reasonable.

However, since it is a discussion, there are definitely objections.

It's just that this time it is not Professor Wang Shichang who opposes it, but another professor who is engaged in the direction of multi-stage flash technology, Wang Xiaodong, and the other party is also reasonable.

"You're right, multi-stage flash technology does have these two drawbacks at the moment. For the first one, for our country, it is an advantage, after all, China's thermal power stations account for more than half of the country's power generation, so the problem of waste heat is completely redundant.

As for the cost, multi-stage flash evaporation is temporarily a little higher than polyamide materials, but in my opinion, this is only temporary, this problem can be solved in repeated experiments, and there are routes, there are clues, compared to polyamide reverse osmosis materials are basically at a dead end, whose potential is greater, isn't it clear at a glance? After all, even Professor Liu Feng and Liu, in polyamide composite materials, I am afraid it is difficult to make a major breakthrough, right?

Professor Liu Feng, what do you think?"

Liu Feng: ......?

Professor Liu?

When did we become professors?

This expert really speaks!

Liu Feng, who didn't want to intervene in the tearing of the big men, sat there and didn't speak, but he was still inexplicably hit by an arrow in the knee.

It's just that you look down on me so much, is it the courage that Tai Platinum Star gave you?

The meeting was enthusiastic, and anyone who used a little snack could hear the guns and arrows in the words, not to mention that it was not the first time that people on both sides had torn apart.

Therefore, Liu Feng, who was sitting in the front row, could only sigh and stand up.

Sure enough, his peers are enemies, but fortunately, the ability to control the microscopic world saves him most of the R&D costs, and the patent authorization of polyamide materials also sells at a good price, otherwise, at this moment, he may not even be qualified to join this battle.

In my heart, I said sorry to the expert Wang who called himself Professor Liu just now: "Actually, this expert is right, in terms of polyamide composite materials, I think it is indeed difficult to make an obvious breakthrough;

Liu Feng has always thought that he is a straight-hearted person, he will say whatever he wants, and he will never beat around the bush, let alone say a lot of nonsense.

He was never afraid to offend people.

Playing politics with a group of old foxes is completely based on one's own shortcomings and attacking the enemy's strengths, and it is not a wise thing to do.

Therefore, the bigwigs will tear up for the sake of research funds, anyway, he is not short of money for experiments, and he offends people, there is a kind of you bite me.

Hearing Liu Feng's first half of the sentence, the expert Wang Xiaodong still had a smile on his face, but when he heard the second half of his sentence, Expert Wang obviously raised his eyebrows.

"Oh? In the field of seawater desalination, who doesn't know that the main direction of reverse osmosis membrane materials is polyamide, since Professor Liu is not sure to make breakthroughs, why not put limited funds on the topic of clear research routes? Could it be that Professor Liu has made new discoveries in the research route of reverse osmosis membrane materials?"

Although this expert Wang is engaged in multi-level flash steaming, Liu Feng still has to praise, you are in Cao Ying's heart in Han!

It's a god assist, how do you always know that I have made a new discovery!

Liu Feng sighed.

In line with the attitude of keeping a low profile, he didn't want to show off his imperfect research results, but now he can't help it.

If in the future, if he is used by someone with a good intention, saying that he only cares about his own interests, fishes in troubled waters, but conceals the latest research technology in national projects, and wastes the country's resources, this will not be good.

After a moment's thought, he spoke.

"It's not impossible for you to say that, although I haven't studied the new results yet, but when it comes to the research route, I am personally more optimistic about the direction of multi-carbon structures similar to graphene structures. ”

As soon as Liu Feng said this, the people present were basically stunned, except for Zhou Lao, Zhang Shuji and Principal Tan.

Really new discoveries?

In the conference room, experts and professors had different expressions.

Some were dismissive, some were noncommittal, and some were surprised and delighted, looking forward to Liu Feng continuing.

Especially that expert Wang Xiaodong, obviously didn't expect Liu Feng to really have a research route, and he was willing to share it with everyone! As for Zhou Lao, Zhang Shuji, and Principal Tan, they had already known on their faces.

Liu Feng paused for a moment and continued: "As we all know, graphene is a two-dimensional carbon nanomaterial composed of carbon atoms with sp2 hybrid orbitals and hexagonal honeycomb lattices, in the water environment, graphene and water can form a channel about 0.9 nanometers wide, ions or molecules smaller than this size can pass quickly, if we can further compress the capillary channel size in the graphene film by mechanical means, control the pore size, we can efficiently filter the salt in the seawater." ”

As soon as Liu Feng's words fell, Professor Wu Qingquan from Mizuki spoke: "I have a question. ”

Liu Feng: "Professor Wu, please speak." ”

Professor Wu said unhurriedly: "Graphene is a very new and popular conceptual material, which has already been studied in the laboratory, but it is difficult to form large-scale industrial production, so the price of this material, when used in seawater desalination, is definitely overkill, and the gains outweigh the losses." ”

Liu Feng explained: "Of course, graphene, and even other graphene-like carbon ball materials, are often limited by price factors, but with the development of science and technology, these materials may not be able to achieve industrial production and reach the price of cabbage." ”

Wu Qingquan shook his head, his eyes sharp: "What you said is indeed possible, but at least in 20 years, if graphene wants to form large-scale industrial production at a reasonable price, it is absolutely impossible!

Professor Wu is also an interesting person, his own research direction is an unpopular one, but at the beginning, the funding was similar to other directions, so a few years have passed, and there is still a large amount of money left from the original allocation.

If it were someone else, I'm afraid that he would have gone to an unknown place by name, and he was so good that he even paid back some of it.

There are probably not many 'fools' like this in this era!