Great Country Academician

Jinling, Hexi New Town.

At the entrance of the square of the building, a group of Jinling City leaders in suits and ties were standing at the entrance of the tallest building in Wanda Plaza. The air conditioner was blowing on their backs and their front faces were facing the hot May wind, waiting there.

This scene attracted the attention of many residents who were working here or passing by for fun. They looked at it curiously and speculated which big leader was coming to inspect.

When he saw the Hongqi car slowly approaching from a short distance away, the leader standing in position C's eyes lit up and he walked over quickly.

"Academician Xu, welcome, welcome to Wanda Plaza to inspect the work."

The leader of Jinling City who took the lead extended his hands enthusiastically and said hello with a smile on his face.

Xu Chuan smiled and stretched out his hand, shook it and said, "Secretary Yu, I'm sorry to keep you waiting for so long."

Yu Xiangdong held Xu Chuan's hand with both hands and shook it, then said with a smile: "In other words, Academician Xu, you are too polite. We have only been here for two minutes."

After exchanging a few words, he looked at Xu Chuan, stepped aside slightly, and said with a smile: "It's already getting hot in May. Let's go in and talk first, Academician Xu, please."

For the leaders of a sub-provincial city like Jinling City, under normal circumstances, they would not be so courteous even to an academician.

But the one in front of me is different. There are many scholars at the academician level, but in today's society, there is probably only one scholar like this one who can reach the Heaven Hall and directly affect the development of the entire country and even the world.

Even if we look through the history of the founding of the country for decades, I am afraid that there is no one before or since.

Xu Chuan didn't pay much attention. He raised his head and looked at the tall buildings in front of him.

This is a new urban center developed in Jinling City in the past decade with five major functions: finance, commerce, commerce, exhibitions, and culture and sports.

It is also one of the areas with the highest concentration of 100-meter-tall buildings in Jinling City.

Not only are there many skyscrapers over 100 meters tall, but these buildings are used for a variety of purposes, including office buildings, hotels, and commercial uses.

For example, Wanda Plaza, Hexi Youth Olympic Center, Jinao Building, and Sujiang Radio and Television City.

Of course, while dense skyscrapers and urban buildings bring prosperity, they also bring considerable environmental problems.

The urban heat island effect + higher concentrations of greenhouse gases create a harsher climate.

In summer, theoretically, the core area of ​​a large city can be 3-5 degrees Celsius higher than the city periphery, and 5-8 degrees Celsius higher than nearby rural areas at the same latitude.

And this is just a theoretical figure. In fact, in reinforced concrete cities, the body temperature can sometimes be ten degrees higher than in rural areas, or even higher.

Cities and roads made of cement or asphalt have a far greater ability to absorb heat than soil.

In addition, there are too many high-rise buildings in the city, there are no trees and water resources, and the air circulation is relatively poor. The urban temperature in summer will far exceed the theoretical temperature.

This time, the porous liquefied DAC carbon dioxide trap is used to renovate high-rise buildings to alleviate the greenhouse effect by absorbing various greenhouse gases such as carbon dioxide, methane, nitrous oxide, and hydrofluorocarbons, and by promoting air flow. , lowering summer temperatures in large cities.

Of course, just retrofitting high-rise buildings to deploy porous liquefied DAC carbon dioxide traps is certainly not enough.

Accordingly, urban greening, transportation, building density, traditional fuel vehicles, industry and other aspects need to be transformed to a certain extent in order to maximize the reduction of the urban heat island effect and the urban temperature.

After entering the building, Xu Chuan chatted with the leader of Jinling City about the urban transformation project, and took the elevator all the way to the floor where the porous liquefied DAC carbon dioxide trap was deployed.

In fact, it is not a particularly difficult task to deploy carbon dioxide traps in high-rise buildings over 100 meters tall, and it does not require spending huge amounts of money to empty a floor.

Generally speaking, high-rise buildings with a building height of more than 100 meters usually have part-time or dedicated equipment floors.

Although the porous liquefied DAC carbon dioxide trap occupies a relatively large area, the area it occupies is actually the exterior wall space.

In the Chuanhai Materials Research Institute, there is a giant equipment with a length of five meters by three meters. It is a device that integrates carbon dioxide capture and conversion.

If it is a simple trap, it actually only has a mesh wall composed of an ion exchange membrane + isophorone diamine.

To put it simply, you can think of it as a wall, except that this wall is thicker than an ordinary wall.

During the renovation, it will replace the outermost non-load-bearing wall of the high-rise building with a flat carbon dioxide capture device, which will not have a particularly large impact on the internal space.

As for devices that convert carbon dioxide into oxygen, starch, glucose, gasoline, graphene and other materials, they can be placed on other floors.

In addition, for high-rise buildings, in addition to the equipment floor, there are actually areas for renovation.

According to national standards, a 100-meter-long building must have an refuge floor every 10 to 15 floors.

Although people are usually not allowed to live on the refuge floor, offices are also not allowed.

However, it can be used as an equipment layer to place some facilities, and must be equipped with fire hydrants, emergency telephones, sprinkler fire extinguishing devices, emergency lights, etc.

The carbon dioxide collector's transformation of the exterior wall has little impact on the internal refuge space of the refuge floor, as long as enough disaster relief channels are left in accordance with the national standard refuge requirements.

This is also the reason why the Jinling Municipal Government chose to agree to large-scale urban transformation.

If it is necessary to clean up a commercial floor separately, even if only the exterior wall is changed, the cost is too high.

After all, the more cutting-edge the city, the greater the value of these commercial floors, and it is probably difficult for the Jinling Municipal Government to make a choice.

Taking the elevator all the way to the floor where the porous liquefied DAC carbon dioxide collector equipment is deployed, Xu Chuan saw the fully completed site.

Slightly different from ordinary floors, due to the replacement of the exterior wall by the carbon dioxide collector, there is almost no external light inside the transformed equipment floor.

However, this does not affect the floors that are not used or worked on under normal circumstances.

After observing these modified porous liquefied DAC carbon dioxide collectors and understanding some safety and other aspects of the work, Xu Chuan came to the carbon dioxide conversion device deployed on the equipment floor.

It took several years for the Sichuan Hai Materials Research Institute to build carbon dioxide conversion technology based on the predecessors. He naturally read the detailed information.

These devices that look similar to the outdoor units of central air conditioners are actually an "artificial photosynthesis" system.

Of course, it does not use light energy, but electrical energy.

Driven by electrical energy, it can combine carbon atoms to form hydrocarbons or electrolyze oxygen at a higher efficiency than traditional converters.

Its core is the outstanding ability of efficient, large-scale and stable continuous production. As for the consumed electrical energy.

Today, when controlled nuclear fusion technology has been realized, is there any energy cheaper than electricity?

Looking at the equipment in front of him, Xu Chuan asked curiously: "If I remember correctly, the carbon dioxide collector and converter should have been tested for a period of time before?"

This time he came here to participate in the start-up and operation meeting of the porous liquefied DAC carbon dioxide collector, which does not mean that these devices have not been tested before.

After all, if a project is to be officially started after acceptance, it is necessary to test the equipment and check the results.

On the side, the person in charge of the entire Jinling City renovation project quickly replied: "Yes, these devices deployed in Wanda Plaza have been running for a while."

Xu Chuan asked with interest: "If they have been running for a while, these converters should have converted oxygen, hydrocarbons and other substances, right? Are there any materials converted by this equipment? I want to see."

"Of course, please wait." The person in charge quickly replied and walked towards the inner room of the deployment device.

Xu Chuan followed curiously. In this room with a relatively small area, he saw rows of cabinets with products of various shapes on them.

According to the labels, the project leader found two of the latest converted products.

A portable small oxygen cylinder and a bottle of methanol in transparent glass.

"Academician Xu, these are the two products converted during the trial operation. This is a high-concentration oxygen produced by electrolysis, and this is synthetic methanol."

"Only the latest batch of samples are kept here. The industrial products converted by the previous trial operation have been transported away."

Xu Chuan keenly realized the meaning, but at the moment he was more interested in this synthetic methanol and small oxygen cylinder.

After taking the sample from the person in charge and looking at it, he walked towards Zheng Hai who followed him.

"Do you have a lighter and cigarettes? Lend them to me."

Hearing this, Zheng Hai was stunned for a moment, and then he took out a pack of cigarettes from his body.

He was an old smoker, and he did carry cigarettes and lighters with him, but he usually didn't smoke when he was with Xu Chuan, and only smoked one when he had free time.

After putting the two samples on the ground, Xu Chuan took a cigarette from the cigarette box, lit it and stuffed it into Zheng Hai's hand.

"Help me hold it."

Zheng Hai took the lit cigarette without knowing why, and didn't quite understand what Xu Chuan wanted to do.

Xu Chuan didn't explain either. He returned the methanol bottle to the project leader first, picked up the oxygen bottle and carefully unscrewed the valve, and the high-concentration oxygen stored inside was released and sprayed onto the cigarette in Zheng Hai's hand.

In an instant, the cigarette, which had only a little flame, exploded and burned, and a dazzling yellow flame appeared in front of everyone.

Xu Chuan nodded with satisfaction and turned on the valve of the oxygen bottle.

It is indeed a high concentration of oxygen.

Watching Xu Chuan fiddling with the oxygen cylinder in his hand, Zheng Hai was stunned again, and then he reacted with a helpless smile on his face.

He has been with this person for several years, and this kind of sudden idea and action is not the first time.

If it were someone else, he might not be able to test the product in person at the project site, but the one he followed did it without hesitation.

As for why he did this, he could guess some reasons.

It's nothing more than interest, and want to see if these manufactured products are genuine.

After a simple test, Xu Chuan returned the product in his hand to the person in charge who was still in a daze, and asked: "I remember you just said that most of the products converted during the trial run were transported away?"

After hearing the inquiry, the person in charge came back to his senses, nodded and said, "Yes."

"How is the conversion efficiency? How much carbon dioxide can the carbon dioxide capture equipment and converters deployed at Wanda Plaza capture every day, and how much oxygen and methanol can be converted into products such as this?"

Upon hearing this question, the project leader, whose name is still unknown, quickly replied.

"There are two buildings over 100 meters tall in Wanda Plaza. A total of six sets of large-scale DAC carbon dioxide traps are deployed. When operating at full power, they can capture about 1,600 tons per week, with an average of close to 230 tons per day."

"The products it transforms."

After hesitating for a moment, the person in charge said directly: "The amount of converted products is currently difficult to estimate, because we do not directly convert all the captured carbon dioxide into oxygen, methane, acetylene and other products. "

"A lot of the carbon dioxide produced during the one-month trial operation was temporarily stored in other places, and not all of it was converted into other products."

Xu Chuan nodded and did a quick calculation in his mind.

Just one Wanda Plaza can capture about 230 tons of carbon dioxide a day, or about 80,000 tons a year.

Although the other nine pilot projects do not have such large-area DAC carbon dioxide traps, according to previous information provided by the Jinling Municipal Government, the first phase of the project can capture at least 50,000 tons of carbon dioxide per year.

If the second and third phases of the project are continued, according to his standard conditions for deployment, the amount of carbon dioxide captured in Jinling City per year may reach more than one million tons.

Not to mention the impact on the temperature of the entire Jinling City after reducing one million tons of carbon dioxide, just one million tons of carbon dioxide is extremely valuable.

According to the data disclosed by the State Grid, in 2023, the country's largest coal power CCUS demonstration project, that is, the carbon dioxide capture and resource-based energy project, will have approximately this number in the national statistical year.

But you must know that by the time of the CCUS demonstration project in 2023, the number of carbon capture projects built across the country will be close to 60.

With the power of one city, benchmarking the carbon capture project of the entire country, if it is placed before the realization of controllable nuclear fusion technology, China needs to cooperate with the world in carbon neutrality, this is simply a 'super big project' Killer weapon'.

Because if this technology is popularized, China's carbon neutrality will not be as tight as in previous years, and even some thermal power stations will be abandoned.

After all, one pound of carbon dioxide is the original carbon neutrality indicator. This technology will greatly liberate power generation and industry.

But now, its value is really not that great.

The indicator of carbon neutrality means little to them today.

The value of this technology now is to capture carbon dioxide, convert it into products, and regulate urban temperature.

Of course, there is also a future development of Mars.

PS: Second update, please give me monthly votes~, it’s the last day of the month, please give me the monthly votes in the hands of the bosses, there are still 600 votes left~ (づ￣3￣)づ╭~