"Let's study how to make a boiler, first of all, we must choose a thicker steel plate to make the bottom of the furnace, according to our current production level will definitely not be too big, we have not manufactured a hydraulic press? It is safer to cast the boiler with the largest hydraulic press or directly from molten steel, and after casting the boiler, add a lid to it, and if possible, install a mercury thermometer on it, always observe the temperature, and keep a record. Connect a long tube to the lid of the boiler, you can also add a pool of water around the tube, let the tube pass through the pool, it will play the role of cooling. At the beginning, it was about 30 percent of the weight of the distillation, which is the most dangerous gasoline, and it may catch fire or even explode in case of an open flame, and it must be used with a special stove, which we will talk about later. It is important to remember that the distilled gasoline is measured at all times. Then the next distillation is called diesel, just like the firewood we usually burn, its ignition point is relatively low, it can be used as lamp oil, but it is much brighter than ordinary soybean oil, sesame oil, etc., but it is also very dangerous, and fires and explosions will also occur, which must be strictly prevented. The output of this diesel is about 38 or 9 percent, and the test weight must be kept in mind at all times. The rest can be taken out and refined in a vacuum boiler that we remake, and finally the remaining dregs can be used to produce some candles, and some residues that are not very useful, which we can use to pave the road, which is called asphalt. ”

Looking at this group of scientists who listened a little stupidly, Zhu Youxiao didn't know how much they could understand, they had never been exposed to these things, and now listening to himself teach these knowledge, it would be good to have this kind of expression, if ordinary people listened to this, maybe they would think of themselves as crazy. That's all I can do, this is still when I was dealing with small oil refining in my previous life, the things I have seen are not too difficult, the difficult thing is the deep processing of oil in the future, those things have not even seen Zhu Youxiao himself, I can only rely on these people to study, anyway, as long as Zhu Youxiao provides enough silver, the more things they may study, and they will not be able to provide more intellectual help.

However, it doesn't matter if Zhu Youxiao helps or not, as long as the direction and purpose of the research are pointed out, the rest is the matter of these scientists of this era, and all that is needed is the silver provided by Zhu Youxiao. Xu Guangqi and Song Yingxing don't care about Zhu Youxiao's silver at all, especially Song Yingxing has no concept of how much money Zhu Youxiao has, anyway, as long as he goes to the inner mansion to get the silver, Wang An has never asked him what he does, how much he uses, as long as there is a strip, there is silver in the inner treasury, and he can match the account, even Zhu Youxiao has not reconciled the account, but Wang An does not dare to embezzle a penny of money himself, because Wang An always feels that Zhu Youxiao is like a god-like existence.

Xu Guangqi's main focus was on the school, and most of his disciples were also in the school, mainly teaching students the curriculum, and teaching them whatever was new, as long as they could find it. Sun Yuanhua originally shared the work of the school for Xu Guangqi, but Zhu Youxiao transferred him to Song Yingxing's research laboratory this time, and Xu Guangqi himself went to find people for the work of the school.

Song Yingxing and Sun Yuanhua allocated 10,000 taels of silver from the Ministry of Internal Affairs, used the best hydraulic press, manufactured a boiler for the laboratory, and began the work of refining petroleum.

Thanks to the efforts of the two of them, several barrels of gasoline, diesel and heavy diesel oil were soon produced, as well as a lot of paraffin, and the remaining asphalt was added with stones to pave a section of the road. After they refined these things, Zhu Youxiao arrived at the scene in time, instructed them to store the gasoline first, and then put the heavy oil well, and the remaining diesel fuel was scooped out of a bottle with an iron spoon, poured into a small glass bottle, covered with a small ceramic lid, and rubbed a cotton wick in the middle to pass through, and after a while, the diesel oil seeped up, took out the furniture that ignited the fire, and then lit it, looking at the yellow glowing lamp, everyone jumped up happily.

The kerosene lamp has long been made by Zhu Ling, there are all kinds of lamps and lanterns, and even made a portable horse lamp, looking at Zhu Ling who was running back and forth with the horse lamp in the breeze, Zhu Youxiao kicked him in the buttocks, but this guy still showed off there.

Now the use of gasoline is not much, the internal combustion engine has not mentioned the agenda of research and development, but can not let these dangerous goods have been stored, Zhu Youxiao pointed out that everyone made a gasoline stove, the biggest difference between the gasoline furnace and the diesel stove is the need for pressure, relatively speaking, the diesel furnace is safe, the gasoline furnace is faster, so the gasoline furnace has become a necessary material in the army, of course, there is a system that must be used in strict accordance with the instructions.

Because these things are all new things, its promotion and use will naturally be handed over to the Daming Royal Trading Company, and the group of boys trained by Niu Jinxing is really not covered, and they will soon open up sales, and they will make a lot of money.

With the development and utilization of oil, the Ming industry has added several trades, such as kerosene lamps, horse lamps as the representative of the lamp manufacturing industry, different families need different shapes and colors of lamps, the poor are the simplest, the rich will choose the gorgeous. There is also a stove industry, but this requires a certain degree of technology, its use also has a certain degree of danger, at will must develop a strict manufacturing and use of technical standards, only with a certain qualification of the factory can produce, so only not too many manufacturers.

However, there are also a few students who graduated from the technical college and got a batch of loans from Tenglong Bank, and their collateral turned out to be the graduation certificate of the technical college. Song Kejiu and Huang Shaojie both graduated from Daming Institute of Technology, they saw the notice of the experimental factory selling patented technology, and they had also participated in the original design and research of gasoline furnaces, but they did not have too much money to open a larger factory, and they are still working in the school experimental factory, and this time they have also come into contact with the subsequent extension of the industry of petroleum products. Song Kejiu and Huang Shaojie were both relatively good students, and Song Yingxing also recognized their academic skills, but it was impossible for him to fund and support them himself, so he suggested that they apply for loans from Tenglong Bank, and wrote them a letter of introduction.

When Song Kejiu and Huang Shaojie went to apply for a loan, when the housekeeper asked them to provide items that could be mortgaged, the two of them realized that they needed to be mortgaged when taking out a loan, or that they needed a guarantor, and they were a little dumbfounded. Surely there is no collateral, guarantor? Alas, there is, Huang Shaojie took out his graduation certificate, showed it to the shopkeeper, and said: "Shopkeeper, our collateral is this graduation certificate, and the guarantor is the current Long Live Lord, you see, isn't this the name signed by the Long Live Lord?" ”

The shopkeeper smiled: "This gentleman, aren't you cheating?" Every graduation certificate has the name signed by Long Live Lord, and like you, you use the graduation certificate signed by Long Live Lord as collateral, don't you treat the money of Tenglong Bank as your own home? No way. ”

Huang Shaojie said: "Our ability is even recognized by Long Live Lord, can't you take out a loan?" ”

Huang Shaojie wanted to say something, but the shopkeeper just kept silent and didn't agree to the loan. Song Ke thought for a long time and took out the letter of introduction given to him by Song Yingxing, and said to the shopkeeper: "Shopkeeper, you see this is Mr. Song's letter of introduction, can we ask Mr. Song to guarantee it?" ”

The shopkeeper took the letter of introduction and read it carefully, and said, "Alas, two fools, Mr. Song's letter is a guarantee." Okay, how much does it cost? If I can make my own decisions, I don't have to bother others. Is 5,000 taels of silver enough? But it can only exist with us temporarily, which means that you must have an account with our bank, understand? ”

Song Kejiu and Huang Shaojie will be really stupid, Mr. Song's letter of introduction is collateral, five thousand taels of silver, oh my God!

The shopkeeper is not a fool, if he just relies on his graduation certificate, he still won't believe them too much, but who is Song Yingxing? That is the famous scientific bull of the Ming Dynasty, and the person who can make him recognize will definitely not disappoint the bank, so the shopkeeper did not hesitate to release a loan with a graduation certificate for the first time.