Li Mengxi realized that a method to reuse charcoal was obtained.

Blow the activated carbon with steam, and when it can expel some of the adsorbed things in the carbon, just like the thread stuffed in the knot of wood, you can blow it out with one breath.

Li Mengxi couldn't help but look at his younger brother, who was playing happily with the wooden doll in his arms. Li Mengxi smiled and touched his younger brother's head, and said, the kid is very powerful.

With the idea of ​​​​recycling charcoal, Li Mengxi ate in a hurry, and then he immediately went to organize things.

Recycling charcoal requires steam. What Li Mengxi thought of was the earthen stoves and steamers in rural areas. Speaking of earthen stoves, Li Mengxi realized that after being stationed in Julu City for so long, he had never thought of building an earthen stove. Adding an earthen stove to an iron pot was not enough.

The rice cooker is here.

Thinking of this, Li Mengxi immediately went to the construction team and asked the construction team to build an earth stove. The construction team already had experience in building a fire kang. The earth stove is just a hole dug in the kang. Other chimneys are simpler than the fire kang.

Much.

After noon, Li Mengxi sent Xiao Bian back to class again.

In the afternoon, Li Mengxi considered that there would be no iron pots for a while, so he considered using other cooking utensils to steam charcoal. The most common cooking utensils in the army were pottery urns. If you add some water to the pottery urn and put a steamer on top, you can also steam things.

The pottery urn is already there, all you need is a steamer.

There were many carpenters in the army, so Li Mengxi found a carpenter to give some instructions. It didn't take long for the carpenters to make a wooden steamer the size of a pot lid. The entire steamer was surrounded by wooden strips and had a wooden stick as the bottom.

There is a large gap in the stick, and this cage is enough.

Taking the steamer back, Li Mengxi found an urn, added water to the urn, put the steamer on top, put a circle of linen cloth around the steamer and stuffed it tightly, then found a lot of used charcoal, and put it in the steamer.

Cover the lid and start steaming.

This chapter is not finished yet, please click on the next page to continue reading the exciting content! Just as Li Mengxi was not clear about the details of other techniques, he also did not know how long it would take to steam the charcoal to completely evaporate the pigments adsorbed inside, so he could steam it for as long as it took.

How long does it take to steam? This steaming lasts the whole afternoon.

In the afternoon, when school was over, my little brother ran back happily.

When his younger brother came back, Li Mengxi immediately took his younger brother to start the experiment.

They found a bowl, found ink, and found freshly steamed charcoal that was still hot. They first put some ink in the bowl, and then threw the steamed charcoal into the bowl.

"Brother, this charcoal has been steamed and should be ready for use again... Huh?!" Li Mengxi suddenly sounded surprised.

As soon as the charcoal was thrown into the bowl, a strange thing happened. The ink in the bowl turned pale at an incredible speed.

It is known that charcoal can absorb pigments. However, previous tests showed that the adsorption of pigments by charcoal was a gradual process. Now the change is too obvious. The pigments are disappearing at an extremely fast speed, obviously faster than before.

Li Mengxi vaguely realized something was wrong.

Quickly, Li Mengxi conducted more tests. He brought more steamed charcoal, used charcoal, and unused charcoal to test together. After many tests, Li Mengxi found that no matter whether it was used

The charcoal is still unused. Once it is steamed, the adsorption capacity becomes extremely strong. When the steamed charcoal is put into the ink, the ink will become watery with almost a swish. The color absorption effect is amazing!

Li Mengxi looked at the slightly hot charcoal in his hand, and his eyes widened.

This... after the charcoal is steamed, why does it seem that the adsorption capacity suddenly increases a lot, not just a little bit, but a sudden increase? Why is this?

(The principle of charcoal adsorbing pigments is that the charcoal is loose and porous. Similarly, to enhance the adsorption capacity, the charcoal must have more pores.

On the contrary, the adsorption capacity of steamed charcoal suddenly increased more than ten times, so it is possible that after steaming, the pores in the charcoal increased ten times...)

(Yes!) Li Mengxi's eyes lit up. (The structure of charcoal is very loose, and steam can make the holes inside the charcoal more and larger...)

Li Mengxi had a guess at this time. The so-called activated carbon was probably steam-treated charcoal!

(As for steam, ordinary steam may not be good enough. Wouldn’t high-pressure steam be better? Use a pressure cooker. The pressure cooker already exists...)

Fortunately, Li Mengxi successfully cracked the technical secret of activated carbon. Strictly speaking, it was not Li Mengxi who cracked it, but Xiao Bian who discovered it. Xiao Bian found that the thread ball stuck in the hole was difficult to pull out and had to be blown out easily.

From this discovery, Li Mengxi realized that this was a method of recycling charcoal. Originally, Li Mengxi steamed a bunch of used charcoal just to test whether the charcoal could be recycled. However, after steaming the charcoal again, he accidentally touched it.

Another key technology - activated carbon activation technology.

Sometimes, technological breakthroughs happen by accident.

I wanted to recycle charcoal, but in the end, I accidentally created activated carbon. Activated carbon is really just ordinary charcoal treated with high-pressure steam. This is activated carbon.

The adsorption capacity of activated carbon is more than ten times and a hundred times that of ordinary charcoal. Ordinary charcoal cannot be called an artifact, but activated carbon is.
Chapter completed!