As soon as Liu Jin finished speaking, Emperor Hongzhi, Liu Jian, Xie Qian, and Li Dongyang were all slightly dumbfounded. They thought Liu Jin could come up with some good idea, but they didn't expect Liu Jin to come up with such an idea.
"After all, he is still too young. Doesn't he know that the smoke from coal is poisonous?"
Emperor Hongzhi looked at Liu Jin and couldn't help but shake his head slightly.
"Isn't what he said about the Golden Island something like that just made up? He doesn't even know that burning coal will produce poisonous gas. It's really hard to believe what he said."
Liu Jian frowned slightly, looked at each other with Xie Qian and Li Dongyang, and saw suspicion in each other's eyes.
"Sir, this coal is indeed very cheap. A load of coal only costs dozens of coins, but do you know why everyone uses charcoal instead of coal?"
The waiter at the side couldn't bear it anymore. The young man in front of him really met the standards of a scholar. He only read the books of saints and sages, and he didn't listen to anything outside the window. He didn't even know about the poisonous gas produced by coal.
"Of course I know that burning coal will produce poisonous gas, which can easily kill people. In addition, coal should not be ignited and is extremely inconvenient to use. In comparison, charcoal is much more convenient and will not produce poisonous gas."
Liu Jin looked at everyone, smiled and said confidently.
"Young master is right. Since you know that people will die if you use this coal, why do you still want everyone to use coal? Isn't it clear that everyone is going to die?"
The waiter was slightly startled, he didn't expect Liu Jin to know so clearly.
"Although coal produces poisonous gas when burned, which is easily fatal, not easy to ignite, and inconvenient to use, coal burns for a long time and has high heat. It is very good whether it is used for heating, cooking, boiling water, etc.
, and more importantly, the price of this coal is very cheap, a load of coal only costs a few dozen cents, and everyone can afford it."
"We have an old saying that seeks advantages and avoids disadvantages, and there is also an old saying that takes the essence and discards the dross. Coal has many advantages. As long as we can solve the poisonous gas generated when coal is burned, we can naturally use it with confidence."
Liu Jin replied with a smile.
"But burning coal will produce poisonous gas. How to solve this problem?"
When Xie Qian heard this, he quickly asked, and everyone else stared at Liu Jin. If Liu Jin could solve the problem of poisonous gas produced when coal is burned, it would be very beneficial to the country and the people.
"To solve the problem of poisonous gas produced when coal is burned, we must first understand why coal produces poisonous gas when it is burned, and why charcoal does not produce poisonous gas."
Liu Jin looked at Xie Qian, then went to the place where charcoal was piled up, picked up a piece of charcoal and said: "Both coal and charcoal are black, and they can be burned for heating, which means that essentially, they are the same.
They are all made of something that can be burned for warmth."
"But the burning of charcoal will not produce toxic gases, but the burning of coal will produce toxic gases. This shows that there must be something else in the coal. It is this kind of thing that produces toxic gases when it is burned. People
Once you inhale this poisonous gas, you will easily die of poisoning."
Liu Jin analyzed it slowly, and everyone else nodded slightly when they heard Liu Jin's words. After thinking about it carefully, it seemed that what Liu Jin said made sense.
"What you mean is that we only need to remove the poisonous things from coal before we can use coal with confidence."
Li Dongyang rolled his eyes, thought for a while and said.
"That's right, we only need to remove the poisonous things from coal, and we can safely use coal for heating and burning fires without worrying about poisoning at all."
Liu Jin nodded solemnly and said: "The toxic substance contained in this coal is sulfur. When sulfur is burned, it will produce sulfur dioxide. This sulfur dioxide is a toxic gas. Excessive inhalation can easily lead to poisoning and death."
"I know about sulfur, but I don't understand sulfur dioxide."
After hearing Liu Jin's words, Liu Jian asked quickly.
"You can understand sulfur dioxide in this way. It is a new thing formed after the burning of sulfur. Just like charcoal will form ash after burning. After the coal is burned out, it will also turn into ash, and it will also produce toxic gases.
Sulfur dioxide.”
Liu Jin touched his head. People in this era didn't even have the most basic understanding of the natural sciences, let alone chemistry. There was no way to talk to them about things like sulfur dioxide. After thinking about it, he could only
It's enough to let them know the meaning in a simple way.
"That's it~"
Sure enough, when Liu Jin explained this, everyone else nodded to express their understanding.
"Then how to remove sulfur from coal?"
Emperor Hongzhi was already a little excited at this time. It seemed that Liu Jin could really solve the problem of sulfur content in coal, so that everyone could use coal.
If it can really be done and coal can replace charcoal, the coal worth tens of cents per load will be much cheaper than the coal worth hundreds of cents per load. There will be so much that ordinary people can afford it. It will be used by ordinary people.
The number of people freezing to death will be greatly reduced.
"This is a bit complicated. To put it simply, you use a washing method to wash away the sulfur in the coal, and then mix the coal and yellow mud according to a certain ratio to make briquettes, so that you can use it with confidence.
."
Liu Jin touched his head in embarrassment. This again involves chemistry. The coal used in later generations basically has to go through the process of coal washing, using some chemical reactions to remove the sulfur in the coal.
.
Then it is made into briquettes, and the coal stove is used to burn the briquettes, which is convenient and affordable. It has been the main choice for household fire for a long time.
However, in the 21st century, environmental protection has become more and more important, and the use of gas and electricity has been gradually promoted, so fewer and fewer people use briquettes, especially in cities, where briquettes have basically been eliminated, and only in some small cities and
It is still used in rural areas.
"wash?"
"coal washing?"
"Coal briquettes?"
When everyone heard this, they all felt a little dumbfounded. They had never heard of such a thing before. These coals were all used for burning. They wished they were drier so that they would be more convenient to use and burn.
Now they want to wash it, and they also say that they want to put yellow mud in it to make some kind of briquettes. This is simply unbelievable and unheard of.
"Sir, if you want to buy charcoal, our store welcomes you. However, if you want to destroy our store sign, our store may be small, but it cannot be bullied."
When the waiter heard this, he said to Liu Jin directly and rudely. He could tell that the man in front of him was here to make trouble.
